A kind of the greasy filth two-stage thermal desorption system and its integrated skid of high-moisture percentageTechnical field
The present invention relates to environmental technology field, specifically a kind of greasy filth disposal plant technology, in particular to a kind of High water cutThe greasy filth two-stage thermal desorption system and its integrated skid of rate.
Background technique
Petroleum is important the energy, is the basis of national economy, and petroleum is mainly answered by one kind that hydrocarbon compound formsHeterocompound, complicated composition contain teratogenesis, carcinogenic, mutagenic substance (such as halogenated hydrocarbons, benzene homologues, phenyl amines, phenanthrene, benzoPyrene etc.).The important environmental basis that soil is depended on for existence as the mankind, animals and plants and microorganism is nature matter and energy ginsengWith the important place of the cyclic processes such as conversion, migration and accumulation.Due to the mobility of petroleum is big, permeability is strong, to Soil adhesionThe features such as significant, crude oil and oil product are acted in exploitation, transport, storage and use process, supervenes a large amount of oilMud, the petroleum in greasy filth once enter soil environment, and the speed of quantity and the super more Soil self-purifications of speed has broken itNatural dynamic equilibrium in soil environment, makes its accumulation occupy advantage, cause soil environment normal function imbalance andThe decline of soil quality will cause to seriously endanger by food chain to human health and ecological environment.
Greasy filth innoxious process for treating is originating from last century 70-80 age external great oil pollution event: beauty in 1978The petroleum-contaminated soil that state Ka Dizi oil tanker event is formed polluted 350 kilometers of long littoral zones, and control expense is up to more than 500,000,000 dollars；Gulf of Mexico blowout event in 1979 lasts 296 days pollution Mexico and about 480 kilometers of U.S. Coast；Nineteen eighty-three to 1984,Panama and Brazilian pleasure boat hit a submerged reef in the Zhongsha Islands, pollute coastline several hundred kilometers；Nineteen ninety Gulf War oily pollution event, greatlyAbout make 1,500,000 barrels to 2,000,000 barrels of crude oil leakage in bay, forms 80 kilometers long, wide 19 kilometers of oily band.China is gone through at presentHistory, which leaves greasy filth amount, millions of tons, and the greasy filth generated every year is more than million tons, causes extremely serious shadow to surrounding enviromentIt rings.
The country is currently without Passing Criteria after unified greasy filth harmlessness disposing, the regional requirements such as Xinjiang, grand celebration, Shaanxi oilResidue oil content (butt) is less than 2% after mud harmless treatment.Domestic and international greasy filth method for innocent treatment generally has incineration method, lifeObject method, hot washing method, solvent extraction, chemical demulsification method, solid-liquid isolation method, solidification method, thermal desorption method, pyrolysis method, resourceChange and utilize (profile control, cement kiln collaboration, compost) etc., since lithology is poor in greasy filth source difference, crude oil physicochemical property difference, greasy filthDifferent equal influence, recycling current processing capabilities are smaller, domestic less than 10%, and complementary energy stablizes residue oil content after oil-sludge treatmentMain technique less than 2% has incineration method, bioanalysis, thermal desorption method, pyrolysis method etc., and incineration method and pyrolysis method existThere may be tail gas to dispose difficult problem, and bioanalysis climate environment influences, it is difficult to popularize in an all-round way, thermal desorption is a kind of remodelingHigh-temperature physics processing method by one of external widely applied technique, and is widely used by western developed country, arrives according to statistics2006, the developed countries such as America and Europe Successful utilization technique in engineering a more than 300, domestic beginning correlative study in 2013,Oil-sludge treatment is had become at present is most suitable for one of technology.
A kind of oil-containing solid waste indirect heating thermal desorption processing unit of the Invention Announce of Publication No. CN104496136A andIts method, wherein device includes automatic control unit, is located in advance by the charging that oil-containing solid waste material transmission mode is sequentially connected toUnit, charging metering and protection location, indirect heating and thermal desorption unit are managed, in indirect heating and the stripping gas of thermal desorption unitStripping gas isolation of purified unit is connected at oil gas vent, connects dregs in the indirect heating and the discharge outlet of thermal desorption unitPost-processing unit, the indirect heating and thermal desorption unit are made of heating cavity and thermal desorption cavity, wherein thermal desorption cavityHeated portion be placed among heating cavity, the inner space of thermal desorption cavity and the inner space of heating cavity are two independencesSeparated and mutual disconnected cavity.
A kind of indirect thermal desorption device of two-part auger of the Invention Announce of Publication No. CN104785515A, belongs to one kindContaminated soil remediation device, including upper sled arranged up and down and lower sled, the interior upper layer that is equipped with of upper sled are pyrolyzed suction-chamber, feed hopper, chargingFlapper, air preheater, air blower, the first chilling spray column, the second chilling spray column, deentrainment tower and air-introduced machine are set in lower sledThere are pyrolysis suction-chamber of lower layer, active carbon filtering tank, combustion chamber, discharge bucket and discharging flapper, equipped with the in the thermal desorption room of upper layerOne auger, surface cover has upper layer flue gas chuck outside the thermal desorption room of upper layer, is equipped with the second auger, lower layer's thermal desorption in lower layer's thermal desorption roomOutdoor surface cover has lower layer's flue gas chuck.For handling organic material contaminated soil or mercury contaminated soil, fume afterheat is used for its purposeUpper layer is pyrolyzed suction-chamber's preheating.
A kind of organic polluted soil multistage thermal desorption repair system of the Invention Announce of Publication No. CN104607455A, byFirst order thermal desorption device, second level thermal desorption device, exhaust gas processing device, dual firing chamber and drop type multifunction conveyer belt composition.UsingThe high-temperature tail gas that thermal desorption generates carries out preheating and preliminary desorption, the contaminated soil processing side of two-stage or more to soilMethod makes full use of waste heat from tail gas, significantly improves system heat integration rate；S-shaped drop type multifunction conveyer belt makes soil in gravityIn the lower thermal desorption storehouse for entering higher temperature of effect, the energy consumption of conveying transmitting device and transmission process is avoided, is increased simultaneouslySoil transport path and transport time, extend the residence time, keep the desorption of soil pollutant more abundant.Its purpose is for pollutingSoil remediation.
A kind of organic polluted soil classification thermal desorption repair system of the Invention Announce of Publication No. CN105080958A andTechnique, organic polluted soil classification thermal desorption repair system, including pre-heater system, high temperature pyrolysis inhale kiln system, low temperatureIt is pyrolyzed haustorium system and soil discharge system；The pre-heater system, the high temperature pyrolysis inhale kiln system, the low temperature pyrogenationHaustorium system and the soil discharge system are sequentially connected logical.The invention is by setting pre-heater system to make full use of high temperatureIt is pyrolyzed the high-temperature tail gas that kiln system generates, improves heat utilization rate；Kiln system, low temperature pyrogenation haustorium system are inhaled by high temperature pyrolysisSystem handles the organic polluted soil of different pollution levels respectively.
A kind of double-layer barrel type thermal desorption System and method for of the Invention Announce of Publication No. CN107695090A, comprising: interiorCylinder is in horizontal arrangement, and head end is covered with the first kiln head cover, and the tail end closing of inner cylinder is simultaneously equipped with several confessions on its circumferential wall surfaceThe material mouth that material passes through, first kiln head cover are additionally provided with gas outlet in the kiln that can discharge outward the exhaust gas in inner cylinder；Outer cylinder, is located at the outside of the inner cylinder, and head end is covered with the second kiln head cover, the tail end sealing company of tail end and the inner cylinderIt connects, and the inside at the tail end of the outer cylinder is connected with the material mouth of the inner cylinder, the lower part of second kiln head cover is setThere is the discharge port for material discharge；Heating mantles are located at the outside of the outer cylinder, and form airtight connection with the outer cylinder,It is equipped in the heating mantles to the outer cylinder and several burners of heat is provided.The invention is designed using the structure of three stacking sets,The purpose is to reduce device volume, occupied area is reduced, is readily transported and constructs in small area region.
A kind of oil-containing solid waste microwave thermal of the Invention Announce of Publication No. CN207271789U desorbs recycling treatment system,It is detected including feed unit, indirect heating Low Temperature Thermal desorption unit, microwave high-temperature thermal desorption processing unit, nitrogen processed and oxygen content singleMember and oil gas condensation and tail gas treating unit.Feed unit, indirect heating Low Temperature Thermal desorption unit, microwave high-temperature thermal desorption processingUnit and oil gas condensation are sequentially connected with tail gas treating unit, the nitrogen processed and oxygen content detection unit and microwave high-temperature thermal desorptionProcessing unit is connected.
A kind of microwave soil thermal desorption device of the Invention Announce of Publication No. CN204769861U, it includes main casing(1), reaction tube (4), reaction tube (4) are mounted in the inner cavity of main casing (1), and main casing is provided with Microwave emission unit on (1)(2), infrared temperature sensor (5), pressure sensor (6) are installed on reaction tube (4) and stretch out the pumping of main pipe (1) outsidePipe is mentioned, is equipped with auger (7) inside reaction tube (4), the axis of auger (7) stretches out reaction tube (4) and connects afterwards with external motor (8)It connects, the two sides of main casing (1) are respectively equipped with feed inlet (13) and discharge port (14), and feed inlet (13) and discharge port (14) pass through starShape valve is connected with reaction tube (4), and the junction of extraction tube and reactor (4) is provided with micro-wave screening grid (11).The deviceMicrowave heating can be carried out to containing high moisture content soil and clayed soil, to carry out heating thermal desorption, while be extracted out by extraction tubeStripping gas completes the reparation to soil.
A kind of United microwave for organic arsenic pollution in soil of the Invention Announce of Publication No. CN103551378B aoxidizesComplex repairation system and method.The repair system includes microwave thermal desorption system, Soil oxidation system and exhaust treatment system；It is dirtyDye soil enters microwave thermal desorption system, and catalyst is added and handles by heating, microwave radiation and thermal desorption, big in soilSome of the contaminants are volatilized into gaseous state outflow, and soil carries out subsequent processing by the discharge port outflow of microwave thermal desorption system；Gaseous state objectIncoming oxidation furnaces bottom, organic matter containing arsenic generate stable arsenical by Strong oxdiative reaction；Treated, and gas passes throughActivated sludge tank further degrade it is up to standard after, be discharged into atmosphere；Soil enters oxidation reaction pond, by the oxidation of oxidation solution,It is sent into reclaimer.
Above 8 patents are being partly improved of carrying out in existing thermal desorption (desorption, parsing) technical foundation, Publication No.The patent of CN104496136A is one of the thermal desorption device for currently having had production case, but there are flue gas heat lossesGreatly, the moisture content of charging and oil content are generally required lower than 20%, it is lower to High water cut greasy filth disposing capacity；Publication No.CN104785515A, Publication No. CN104607455A, Publication No. CN105080958A have been all made of pre- using flue gas heatGreasy filth is handled, efficiency is improved, but is all that the heat of pretreatment unit is derived only from flue gas, heat and place in preprocessing processReason ability is uncontrollable, and limited for high-moisture percentage greasy filth pretreatment processing capacity；The patent of Publication No. CN107695090ALow temperature and high-temperature area are formd by inner cylinder, outer cylinder, but for sticky greasy filth, inner cylinder, which rotates, is easy stacking material, andProcessing capacity is limited.This 5 patents mainly all take the mode of indirect heating greasy filth, are traditional drying mode, main heatConductive heat transfer, and because moisture content is high in high-moisture percentage greasy filth, this heat transfer type speed is relatively slow, affects processingAbility extends process flow, increases thermal loss.
Conventional drying process, such as flame, hot wind, steam, electric heating, are external heat drying, and surface of material absorbsAfter heat, through heat transfer, inside heat leak to material, heat up drying immediately.And microwave drying is then entirely different, it is a kind ofThe method of inside heating.Wet stock is in cycle of oscillation extremely short microwave high-frequency electric field, and pole can occur for internal hydroneChange and along the direction proper alignment of microwave electric field, then rapidly with high-frequency alternating field direction interaction change and rotate, andViolent collision and friction (each second is up to more than one hundred million times) are generated, as a result a part of microwave energy is molecular motion energy, and withThe form of heat shows, and so that the temperature of water is increased and is left material, so that material be made to obtain drying.That is, microwaveInto material and after being absorbed, energy is in material dielectric internal conversion at thermal energy.Therefore, microwave drying is to utilize electromagnetic waveAs heating source, dried material sheet as heater a kind of drying mode.Publication No. CN207271789U, Publication No.CN204769861U, Publication No. CN103551378B patent be all made of microwave drying mode, have efficiently, the time it is short etc.Advantage, but microwave drying uses electric energy, and the transformation efficiency from electric energy to electromagnetic field is only 50% or so.Therefore this skillArt is to apply to have high value-added product dry, or be lot more time to complete to do using normal drying mode at presentDry material.Microwave is mainly used for improving drying capacity (removing moisture removal rapidly, temperature gradient is not generated in material) now, orPerson is used to remove the situation that usual drying method is lot more time to last several percentage points of the moisture of removal.
By being analyzed above as it can be seen that single-stage thermal desorption device is primarily present the problems such as heat utilization rate is low, disposing capacity is small, twoGrade and the above desorption apparatus improve the heat energy utilization of flue gas, but constrain the disposition energy of equipment there are still heating time lengthPower, microwave have the characteristics that efficient, the time is short, if but for handling high-moisture percentage greasy filth, power consumption is larger, and energy consumption is high.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of greasy filth two-stage thermal desorption systems of high-moisture percentageSystem and its integrated skid, overcome the defects of the prior art, microwave are combined with the advantages of indirect thermal desorption, forThe boiling point difference feature of high-moisture percentage greasy filth, in such a way that two-stage individually heats, the petroleum the hydrocarbon component thermal desorption in greasy filthThe preceding evaporating temperature that water in greasy filth is first preheating to microwave moisture, then can be significant with indirect thermal desorption (flue gas) modeGround shortens drying time, improves device processing capacity, reduces device comprehensive energy consumption.
Technical scheme is as follows:
A kind of greasy filth two-stage thermal desorption system of high-moisture percentage, including feed system, first order thermal desorption system, the second levelThermal desorption system, discharge system, steam condensation and oil-water separation system, nitrogen protecting system.
Further, the feed system include sequentially connected helicoidal pump, cylinder round sifter, feed hopper, weighing belt,Promote transmission device connection, wherein the promotion transmission device is spiral propeller, belt conveyor, in drag conveyorIt is a kind of.
Further, the first order thermal desorption system include first order feed inlet, microwave generation system, transmission belt,First vapor recovery lines, the second vapor recovery lines, MICROWAVE PROTECTION cover, first order discharge port；
The first order feed inlet is located at below discharge port set by the upper end for promoting transmission device, and is located at transmission skinBand top, feed inlet upper end are connect with MICROWAVE PROTECTION cover top seal, and transmission belt one end is connected with first order feed inlet, anotherEnd is connected with discharging device, positioned at the top of discharging device；
The microwave generation system is made of distributing device, microwave suppressor, microwave source, microwave cavity, the clothDevice is between feed inlet and transmission belt, there are two the microwave suppressor is set, and is located at microwave cavity both ends, describedAfter microwave cavity one end is located at distributing device, before the other end is located at first order discharge port, the microwave source is located at microwave cavityIt is interior, and it is located at the top of transmission belt；First vapor recovery lines one end is protruded into microwave cavity and is tightly connected, the other end and steamThe filler condensing tower connection being arranged in condensation and oil-water separation system, second vapor recovery lines one end is protruded into MICROWAVE PROTECTION coverIt being tightly connected, the other end is also connect with filler condensing tower, and the second vapor recovery lines are connected with the first vapor recovery lines, and firstVapor recovery lines and the second vapor recovery lines can set 1 to 10 as needed.
Further, the second level thermal desorption system includes insulation cover, combustion chamber, thermal desorption cavity, second level chargingMouth, second level discharge port, burner, second level thermal desorption gas recovery pipe line, chimney；
The second level feed inlet and the second level discharge port are located at thermal desorption cavity both ends, the thermal desorption chamberBody is parallel with combustion chamber longitudinal direction to be located in combustion chamber and combustion chamber is stretched out at both ends, and thermal desorption cavity is close to feed endPosition is fixed with combustion chamber, and the other end is not fixed；There is thermal desorption gas collection chamber at the top of thermal desorption cavity and is taken off with second level heatIt is insulation cover outside the connection of attached gas recovery pipe line, combustion chamber, thermal desorption cavity is in cylinder type and interior is equipped with spiral propeller；1 to 4 thermal desorption cavity is set in each combustion chamber, and the burner is located at thermal desorption cavity lower part in combustion chamber, each3 to 20 burners are set in combustion chamber, and at least set 1 burning close to second level feed inlet one end being located at thermal desorption cavityDevice, the chimney are installed on close to second level discharge port one end, and are tightly connected with top of combustion chamber.
Further, the discharge system include sequentially connected discharging sealing, it is dust-proof be flexible coupling, sealing screw promotesDevice, the connection of shower humidification machine；
The sealing screw propeller is shaftless screw propeller, and shower humidification machine sets 1 to 2 as needed, and hasClear water supply pipeline selects serial or parallel connection in the case where being arranged 2.
Further, steam condensation and oil-water separation system by filler condensing tower, circulation water pot, gun barrel,Feeding spraying pump, water circulating pump, fixed gas processing unit composition；
The filler condensing tower be successively arranged from top to bottom fixed gas outlet line, spray thrower, spray water supplying pipe, filler,Vapor recovery lines, condensation heat desorption gas recovery line, gun barrel, the spray thrower and the spray water supplying pipe phaseEven；
It is described circulation water pot one end be sequentially connected feeding spraying pump, spray water supplying pipe, the other end successively with heat exchanger, circulationWater pump, gun barrel receive mouth of a river connection, the heat of heat exchanger for preheat enter the first thermal desorption system and its cleaning device,The nitrogen needed in second thermal desorption system；Cleaning shoe, bed mud collection port, oil separating plate, receiving port, receipts are equipped in gun barrelThe mouth of a river；Fixed gas processing unit is successively connected by axial flow blower, drying chamber, adsorption tanks, thermal desorption cavity close to feed inlet one endAnd and burner close to axial flow blower is connect with fixed gas outlet line.
Further, the nitrogen protecting system includes inert gas generator, air accumulator, air compressor machine, pipeline；
In first order thermal desorption feed inlet, first order thermal desorption transmission belt discharge port lower end, the discharging of second level thermal desorptionAt mouthful, it is equipped with pipeline, is supplied for nitrogen.
A kind of integrated skid of the greasy filth two-stage thermal desorption of high-moisture percentage, including charging sled, thermal desorption are prized, discharging is prized, steamCondensation and water-oil separating sled, nitrogen protection sled；
The charging sled, for installing feed system；
The thermal desorption sled is divided into sled and lower sled, and upper sled is that first order thermal desorption is prized, for installing first order thermal desorptionSystem, lower sled are that second level thermal desorption is prized, for installing second level thermal desorption system；
The discharging sled, for installing discharge system；
The steam condensation and water-oil separating sled, for installing steam condensation and oil-water separation system；
The nitrogen protection sled, for installing nitrogen protecting system.
Further, the discharging of upper sled is tightly connected with the feed inlet of lower sled, and cleaning is equipped at upper sled transmission belt dischargingDevice, cleaning device are located at below transmission belt, are followed successively by first and scrape mud brush, nitrogen sparge tube, second scrape mud brush, sealing plate.Nitrogen sparge tube is equipped with 2 to 10 ventholes, venthole and apart from conveyor belt surface 1cm to 20cm, nitrogen sparge tubeConnect nitrogen supply pipeline.
Further, lower sled long 10m to 18m, wide 2.5m to 3.5m, high 2m to 3m, lower sled is long 1m to 2m shorter than upper sled,It is wide identical as upper sled size, high 1.5m to 2m.
Further, the integrated skid of the greasy filth two-stage thermal desorption of high-moisture percentage can be as needed in chimney and thermal desorption cavityBetween increase exhaust gas purification and treatment device, sewage-treatment plant is added between heat exchanger and circulating tank.
Greasy filth residence time in thermal desorption cavity is 20min to 60min, microwave cavity, MICROWAVE PROTECTION cover, thermal desorption chamberInterior operating pressure control is in -10.0kPa to 1.0kPa.
Further, every suit steam condensation and oil-water separation system can simultaneously with 1 set to 4 sets first order thermal desorption systemSystem connect with second level thermal desorption system or every suit steam condensation and water-oil separating sled can and meanwhile with 1 set to 4 put on prize andLower sled connection.
The invention has the beneficial effects that:
(1) present invention has rationally designed multiple warm areas, energy saving according to high-moisture percentage greasy filth thermal desorption temperature curve.For high-moisture percentage greasy filth at 0 DEG C to 100 DEG C of temperature, what main desorption came out is moisture and a small amount of light hydrocarbons, 100 DEG C to 200It is still moisture and light hydrocarbons that DEG C section, which is mainly desorbed come out, this stage caloric receptivity is big, and because of liquid holdup height, the reaction time is longShort is the principal element for restricting processing capacity, and microwave heating controls the greasy filth residence time, a large amount of water evaporation efficiency can be improved.200 DEG C to 400 DEG C main desorption petroleum hydrocarbons, 400 DEG C to 600 DEG C main desorption petroleum hydrocarbons and a small amount of hydrocarbon cracking, and residue goes outWhen thermal desorption cavity, temperature is lower, and capacity loss heat is small, and 1m to 2m is separated by warm area before residue of the present invention goes out thermal desorption cavity,Not set burner reduces energy consumption.
(2) present invention also improves energy utilization efficiency by following measures: the distributing device at first order thermal desorption charging,Make the evenly dispersed distribution of the greasy filth on transmission belt, improve microwave efficiency and increases water evaporation area；The burning of second level thermal desorptionIndoor fire resisting wall increases subregion and high-temperature flue gas flow-disturbing, reduces the energy loss of flue gas carrying；The burning of second level thermal desorptionIt is equipped with equally distributed aperture in indoor fire-proof plate, changes current combustion device directly to temperature caused by the heating of thermal desorption cavityThe shortcomings that degree is unevenly distributed；Fixed gas is sent into second-time burning in second level thermal desorption combustion chamber after drying and absorption.
(3) direct spraying cooling is carried out to the gas that thermal desorption device generates using filler condensing tower, filler improves coldSolidifying efficiency, a condensing tower can at most connect with 4 sets of thermal desorption systems, reduce equipment making cost, reduce and ranEquipment failure rate in journey, has saved control unit, improves the stability of equipment；Simultaneously solve present apparatus condensing tower orDrainer be easy to cause that pipeline blocks or even circulated sprinkling water flows backward in thermal desorption cavity above thermal desorption cavityThe problem of；Filler condensation tower bottom takes fluid-tight mode, creates condition for tiny structure in tower, also avoids gas and scurry into oilWater separation tank.
(4) the unrestrained upper sled of transmission belt greasy filth is solved the problems, such as, the discharging of upper sled is tightly connected with the feed inlet of lower sled, onIt prizes and is equipped with cleaning device at transmission belt discharging, cleaning device, which is followed successively by, to be scraped mud brush, nitrogen sparge tube, scrapes mud brush, sealing plate.
(5) requirement of moisture content, reduces because reducing raw material when feeding present invention reduces thermal desorption device for greasy filthMoisture content and the pretreating process process carried out, reduce integrated treatment cost.
(6) present invention is particularly suitable for the greasy filth harmlessness disposings that centrifuge is isolated.
Detailed description of the invention
Fig. 1 is the most preferred embodiment process flow diagram of one of technical solution of the present invention.
Fig. 2 is two most preferred embodiment process flow diagram of technical solution of the present invention.
Fig. 3 is the main view enlarged structure schematic diagram that first order heat takes off distributing device in system in attached drawing 2.
Fig. 4 is the side view enlarged structure schematic diagram that first order heat takes off distributing device in system in attached drawing 2.
Fig. 5 is the main view enlarged structure schematic diagram of cleaning device in first order thermal desorption system in attached drawing 2.
It is as shown in the figure:
1 is discharging gas lock, and 2 be MICROWAVE PROTECTION cover, and 3 be transmission belt, and 4 be first order thermal desorption system, and 5 is grading for firstMaterial mouth, 6 be microwave generation system, and 7 be thermal desorption gas recovery pipe line, and 8 be adsorption tanks, and 9 be second level feed inlet, and 10 be dryingTank, 11 be steam condensation and oil-water separation system, and 12 be axial flow blower, and 13 export for fixed gas, and 14 be filler condensing tower, and 15 areSpray thrower, 16 be filler, and 17 be circulation water pot, and 18 be heat exchanger, and 19 be water pump, and 20 be cleaning shoe, and 21 be burner, and 22 areFire-proof plate, 23 be thermal desorption cavity, and 24 be second level thermal desorption system, and 25 be lower sled protective cover, and 26 is have axis blade auger,27 be reciprocating motor, and 28 be axis, and 29 be blade, and 30 scrape mud brush for first, and 31 be belt support frame, and 32 be sealing plate, and 33 be secondMud brush is scraped, 34 be nitrogen sparge tube, and 35 is scrape mud brush, and 36 be distributing device.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specificEmbodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description 1Butut mode be described, such as: front, rear, top, and bottom, left and right positional relationship be the cloth according to Figure of description 1Figure direction determines.
As shown in Fig. 1,2,3,4,5, a kind of greasy filth two-stage thermal desorption system of high-moisture percentage can make separately as systemWith also can integrate and used in skid-mounted system.
Embodiment 1:
When being used separately as system (when being not limited in skid-mounted system):
Including feed system 1, first order thermal desorption system 4, second level thermal desorption system 24, discharge system, steam condensationAnd oil-water separation system 11, nitrogen protecting system:
Feed system 1 is successively made of helicoidal pump, cylinder round sifter, feed hopper, weighing belt, drag conveyor connection.
First order thermal desorption system 4 by feed inlet 5, microwave generation system 6, transmission belt 3, the first vapor recovery lines,(the first vapor recovery lines and the second vapor recovery lines collectively constitute first order thermal desorption gas and return second vapor recovery linesClosed tube line 7), MICROWAVE PROTECTION cover 2 form；First order feed inlet 5 is located at below the upper end discharge port of drag conveyor (scraper plate conveyingMachine is being not shown in the figure), 3 top of transmission belt, 5 upper end of feed inlet is connect with 2 top seal of MICROWAVE PROTECTION cover, transmission belt 3One end is connected with first order feed inlet 5, and the other end is connected with first order discharge port, positioned at the top of first order discharge port；MicrowaveGenerating system 6 is made of distributing device, microwave suppressor, microwave source, microwave cavity, and distributing device 36 is located at first order feed inletBetween transmission belt 3, microwave suppressor is located at microwave cavity both ends, and after one end is located at distributing device 36, the other end is located atBefore first order discharge port, microwave source is located in microwave cavity, the top of transmission belt 3；First vapor recovery lines one endIt protrudes into microwave cavity and is tightly connected, the other end is connect with filler condensing tower 14, and microwave guarantor is protruded into second vapor recovery lines one endIt is tightly connected in shield 2, the other end is connect with filler condensing tower 14, the second vapor recovery lines and the first vapor recovery lines phaseEven, the first vapor recovery lines set 1, and steam pipe line 2 sets 6.
Second level thermal desorption system by insulation cover, combustion chamber, thermal desorption cavity, second level feed inlet, second level discharge port,Burner, (its structure is similar with first order thermal desorption gas recovery pipe line, and by two for second level thermal desorption gas recovery pipe lineRoot canal line composition), chimney composition；Second level feed inlet and second level discharge port are located at thermal desorption cavity both ends, thermal desorptionCavity is parallel with combustion chamber longitudinal direction to be located in combustion chamber and combustion chamber is stretched out at both ends, close to feed end thermal desorption cavity withCombustion chamber is fixed, and the other end is not fixed；Have at the top of thermal desorption cavity thermal desorption gas collection chamber and with second level thermal desorption gasRecovery line connection is insulation cover outside combustion chamber, and thermal desorption cavity is in cylinder type and interior is equipped with spiral propeller；Each combustionBurn indoor 1 to 4 thermal desorption cavity of setting, burner 21 is located at thermal desorption cavity lower part in combustion chamber, in each combustion chamberIt is arranged 3 to 20 burners 21 (attached drawing 2 is schematic diagram, and signal quantity is less than actual setting quantity), in burner 21 extremely1 is set less and is located at thermal desorption cavity close to second level feed inlet one end, and chimney fires close to second level discharge port one end and burns ceilingPortion is tightly connected.
Discharge system successively by discharging sealing, it is dust-proof be flexible coupling, sealing screw propeller, shower humidification machine connection form；Sealing screw propeller is shaftless screw propeller, and shower humidification machine sets 1 as needed, and has clear water supply pipeline.
Steam condensation and oil-water separation system 11 are by filler condensing tower 14, circulation water pot 17, gun barrel, feeding spraying pump19, water circulating pump, fixed gas processing unit composition；Filler condensing tower 14 is followed successively by fixed gas outlet line 13, spray from top to bottomDrench device 15, spray water supplying pipe, filler 16, vapor recovery lines, condensation heat desorption gas recovery line, gun barrel, sprayDevice 15 is connected with spray water supplying pipe；Circulation 17 one end of water pot be sequentially connected feeding spraying pump, spray water supplying pipe, the other end successively with changeHot device, water circulating pump, gun barrel receive mouth of a river connection, the heat of heat exchanger for preheat enter the first thermal desorption system 4 andRequired nitrogen in its cleaning device, the second thermal desorption system 24；Be equipped in gun barrel cleaning shoe, bed mud collection port,Oil separating plate, receives the mouth of a river at receiving port；Fixed gas processing unit is successively by axial flow blower 12, drying chamber, adsorption tanks, thermal desorption cavityIt is connected close to feed inlet one end and with burner 21 close to axial flow blower 12 is connect with fixed gas outlet line 13.
Nitrogen protecting system is mainly made of inert gas generator, air accumulator, air compressor machine, pipeline.First order feed inlet,First order discharge port lower end, second level discharge port are equipped with nitrogen supply pipeline.
Above-mentioned oil base drilling fluid recycling and reusing device can be made further optimization and/or improvements according to actual needs:
First order thermal desorption system 4 2450 ± 30MHz of microwave frequency, greasy filth residence time 2min to 10min.
4 distributing device of first order thermal desorption system by reciprocating motor 27, mud brush 30 scraped by axis blade auger 28, first form,There is axis blade auger 26 to be located at 5 lower section of feed inlet, outer blade diameter and feed inlet bottom edge gap 1cm to 3cm, first scrapes mud brush30 one end are fixed on 5 lower end of feed inlet, and the other end protrudes between the blade 29 of axis blade auger 26.
3 faces to 9 face fire resisting walls are equipped in the thermal desorption system combustion chamber of the second level, fire resisting wall 22 is parallel with burner ends,It is divided into fire resisting wall and lower fire resisting wall, is arranged by odd number, down by top of combustion chamber, lower edge is more than thermal desorption chamber to upper fire resisting wallBody bottom 0.1m to 0.5m, lower fire resisting wall upper edge apart from thermal desorption cavity bottom 0.1m to 0.5m, burner ends face and according toThe distance between secondary similar fire resisting wall is 1m to 2m, is not set between combustion chamber one end and fire resisting wall of second level discharge portBurner 21；Second level thermal desorption system combustion chamber heat, which is desorbed between cavity and burner 21, is equipped with fire-proof plate, cloth on fire-proof plateThe aperture of full 1mm to 10mm, fire-proof plate is apart from thermal desorption cavity bottom 0.1m to 0.3m.
Steam condensation and oil-water separation system 11 in 14 bottom of filler condensing tower be connected with gun barrel, connector it is upperIt receives the mouth of a river lower than the mouth of a river is received and is lower than receiving port, vapor recovery lines, condensation heat desorption gas recovery line are being filled out as needed in endGas distributor is set in material condensing tower 14, packed height 0.5m to 3m in filler condensing tower.
System increases exhaust gas purification and treatment device, heat exchanger and circulating tank between chimney and thermal desorption cavity as neededBetween add sewage-treatment plant.
Greasy filth residence time in thermal desorption cavity is 20min to 60min, microwave cavity, MICROWAVE PROTECTION cover, thermal desorption chamberInterior operating pressure control is in -10.0kPa to 1.0kPa.
Every suit steam condensation and oil-water separation system can simultaneously with 1 set to 4 sets first order thermal desorption system 4 and secondGrade thermal desorption system 24 connects.
Embodiment 2:
When a kind of greasy filth two-stage thermal desorption system of high-moisture percentage is integrated in skid-mounted system in use, high containing as a kind ofThe greasy filth two-stage thermal desorption of water rate integrates skid, and main includes charging sled 1, thermal desorption sled, discharging sled, steam condensation and grease pointFrom sled 11, nitrogen protection sled, wherein thermal desorption sled is divided into sled and lower sled, and upper sled be first order thermal desorption sled 4, lower prize is theSecond level thermal desorption sled 24；It is characterized by:
Charging sled is successively made of helicoidal pump, cylinder round sifter, feed hopper, weighing belt, drag conveyor connection.
Upper sled is by feed inlet 5, microwave generation system 6, transmission belt 3, the first vapor recovery lines, the second steam recovery pipeLine, MICROWAVE PROTECTION cover 2 form；First order feed inlet 5 is located at below the upper end discharge port of drag conveyor, 3 top of transmission belt,5 upper end of feed inlet is connect with 2 top seal of MICROWAVE PROTECTION cover, and 3 one end of transmission belt is connected with first order feed inlet 5, the other endIt is connected with first order discharge port, positioned at the top of first order discharge port；Microwave generation system 6 is by distributing device, microwave suppressor, micro-Wave occurring source, microwave cavity composition, for distributing device between feed inlet and transmission belt 3, microwave suppressor is located at microwaveCavity both ends, after one end is located at distributing device 36, before the other end is located at first order discharge port, microwave source is located at microwave cavityIt is interior, the top of transmission belt 3；First vapor recovery lines one end is protruded into microwave cavity and is tightly connected, and the other end and filler condenseTower 14 connects, and second vapor recovery lines one end is protruded into MICROWAVE PROTECTION cover 2 and is tightly connected, the other end and filler condensing tower 14Connection, the second vapor recovery lines are connected with the first vapor recovery lines, and the first vapor recovery lines set 1, steam pipe line 2If 6.
Lower sled is by insulation cover, combustion chamber, thermal desorption cavity, second level feed inlet, second level discharge port, burner, secondGrade thermal desorption gas recovery pipe line, chimney composition；Second level feed inlet and second level discharge port are located at thermal desorption cavity twoEnd, thermal desorption cavity is parallel with combustion chamber longitudinal direction to be located at and combustion chamber is stretched out at both ends the combustion chamber in, and close feed end is warmDesorption cavity is fixed with combustion chamber, and the other end is not fixed；There are thermal desorption gas collection chamber and and the second level at the top of thermal desorption cavityThe connection of thermal desorption gas recovery pipe line is insulation cover outside combustion chamber, and thermal desorption cavity is in cylinder type and interior pushes away equipped with spiralInto device；1 to 4 thermal desorption cavity is set in each combustion chamber, and burner is located at thermal desorption cavity lower part in combustion chamber, each3 to 20 burners are set in combustion chamber, 1 is at least set in burner and is located at thermal desorption cavity close to second level feed inlet 9One end, chimney fire close to second level discharge port one end and burn the sealed connection of ceiling portion.
The discharging of upper sled is tightly connected with the second level feed inlet 9 of lower sled, and sanitizer cartridge is equipped at upper 3 discharging of sled transmission beltIt sets, cleaning device is located at the lower section of transmission belt 3, is followed successively by and scrapes mud brush 35, nitrogen sparge tube 34, second scrapes mud brush 33, sealing plate32.Equipped with 2 to 10 ventholes, venthole and apart from conveyor belt surface 1cm to 20cm, nitrogen is blown nitrogen sparge tube 34Sweep pipe connection nitrogen supply pipeline.
Discharging sled successively by discharging sealing, it is dust-proof be flexible coupling, sealing screw propeller, shower humidification machine connection form；It is closeEnvelope spiral propeller is shaftless screw propeller, and shower humidification machine sets 1 as needed, and has clear water supply pipeline.
Steam condensation and water-oil separating sled 11 are by filler condensing tower 14, circulation water pot 17, gun barrel, feeding spraying pump19, water circulating pump, fixed gas processing unit composition；Filler condensing tower 14 is followed successively by fixed gas outlet line 13, spray from top to bottomDrench device 15, spray water supplying pipe, filler 16, vapor recovery lines, condensation heat desorption gas recovery line, gun barrel, sprayDevice 15 is connected with spray water supplying pipe；Circulation 17 one end of water pot is sequentially connected feeding spraying pump, spray water supplying pipe connection, and the other end is successivelyIt receives the mouth of a river with heat exchanger, water circulating pump, gun barrel and connect, the heat of heat exchanger enters the first thermal desorption system for preheating4 and its cleaning device, the second thermal desorption system 24 in the nitrogen that needs；Be equipped in gun barrel cleaning shoe, bed mud collection port,Oil separating plate, receives the mouth of a river at receiving port；Fixed gas processing unit is successively by axial flow blower 12, drying chamber, adsorption tanks, thermal desorption cavityIt is connected simultaneously close to second level feed inlet one end and burner is close to axial flow blower 12 is connect with fixed gas outlet line 13.
Nitrogen protection sled is mainly made of inert gas generator, air accumulator, air compressor machine, pipeline.First order feed inlet 5,First order discharge port lower end, second level discharge port are equipped with nitrogen supply pipeline.
Petroleum-type recycling and reusing device in above-mentioned greasy filth can be made further optimization and/or improvements according to actual needs:
Lower sled long 16m, wide 2.5m, high 2.5m, compared with upper sled, the length of lower sled is 1m shorter than upper sled, width and upper sled rulerIt is very little identical, it is highly 2m.
First order thermal desorption prizes 4 2450 ± 30MHz of microwave frequency, greasy filth residence time 2min to 10min.
4 distributing device of first order thermal desorption system by reciprocating motor 27, mud brush 30 scraped by axis blade auger 28, first form,There is axis blade auger 26 to be located at 5 lower section of first order feed inlet, outer blade diameter and 9 bottom edge gap 1cm of second level feed inlet are extremely3cm, first, which scrapes 30 one end of mud brush, is fixed on 5 lower end of feed inlet, and the other end protrudes between the blade 29 of axis blade auger 26.
3 faces to 9 face fire resisting walls are equipped in the thermal desorption system combustion chamber of the second level, fire resisting wall 22 is parallel with burner ends,It is divided into fire resisting wall and lower fire resisting wall, is arranged by odd number, down by top of combustion chamber, lower edge is more than thermal desorption chamber to upper fire resisting wallBody bottom 0.1m to 0.5m, lower fire resisting wall upper edge apart from thermal desorption cavity bottom 0.1m to 0.5m, burner ends face and according toThe distance between secondary similar fire resisting wall is 1m to 2m, is not set between combustion chamber one end and fire resisting wall of second level discharge portBurner；Second level thermal desorption system combustion chamber heat, which is desorbed between cavity and burner, is equipped with fire-proof plate, is covered with 1mm on fire-proof plateTo the aperture of 10mm, fire-proof plate is apart from thermal desorption cavity bottom 0.1m to 0.3m.
14 bottom of filler condensing tower is connected with gun barrel in steam condensation and water-oil separating sled 11, the upper end of connectorLower than the mouth of a river is received, receives the mouth of a river and be lower than receiving port, the first vapor recovery lines, thermal desorption gas recovery pipe line are as needed in fillerGas distributor is set in condensing tower 14, packed height 0.5m to 3m in filler condensing tower.
Above system increases exhaust gas purification and treatment device between chimney and thermal desorption cavity as needed, heat exchanger with followSewage-treatment plant is added between ring tank.
Above-mentioned greasy filth residence time in thermal desorption cavity is 20min to 60min, and microwave cavity, MICROWAVE PROTECTION cover, heat are de-Attached intracavitary operating pressure control is in -10.0kPa to 1.0kPa.
The condensation of above-mentioned every suit steam and oil-water separation system can simultaneously with 1 set to 4 sets first order thermal desorption system 4 andSecond level thermal desorption system 24 connects.
The above technical characteristic constitutes highly preferred embodiment of the present invention, with stronger adaptability and best implementation effectFruit can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Embodiment 3:
It is of the invention use process is as follows (by taking integrated skid as an example):
When the present invention is arranged, when fixing station, by feed system 1, first order thermal desorption system 4, second level thermal desorptionSystem 24, discharge system, steam condensation and oil-water separation system 11, nitrogen protecting system carry out installation connection；Temporary constructionWhen, 1, thermal desorption sled, discharging sled, steam condensation and water-oil separating are prized by charging and prizes 11, nitrogen protection sled, wherein thermal desorption sled pointFor upper sled and lower sled, upper sled is first order thermal desorption sled 4, lower sled is that second level thermal desorption sled 24 carries out installation connection.
By taking the greasy filth two-stage thermal desorption skid-mounted device implementation process of high-moisture percentage as an example:
(1) high-moisture percentage greasy filth is promoted to cylinder round sifter by helicoidal pump, solid-state greasy filth after separation through feed hopper,Weighing belt, drag conveyor are transferred to sled and are sent by first order feed inlet 5.
(2) greasy filth is acted on through the distributing device 36 of 5 lower part of first order feed inlet, is tiled on transmission belt 3, transmission beltIn 3 rotation processes, drives greasy filth to heat under the effect of microwave generation system 6, add thermogenetic thermal desorption gas through steam recovery pipeLine 7 is inhaled into filler condensing tower 14, and the thermal desorption gas in MICROWAVE PROTECTION cover is inhaled into filler condensing tower through vapor recovery lines 714, after greasy filth heats and is evaporated portion of water, into second level feed inlet 9.
(3) burner 21 needs to open or close according to heating, and flame is through the aperture on fire-proof plate and fire-proof plate after unlatchingHomogeneouslly-radiating, increase thermal desorption cavity 23 temperature, after greasy filth enters thermal desorption cavity 23, under the promotion of spiral propeller by23 feed inlet of thermal desorption cavity to discharge system, thermal desorption gas is inhaled into filler condensing tower 14 through vapor recovery lines through gas.
(4) feeding spraying pump 19 will recycle in water pot 17 water through spray water supply tube pump to spray thrower 15 in filler condensing tower 14,Thermal desorption gas and the water direct condensation by contact in filler condensing tower 14 form oily wastewater, and oily wastewater enters gun barrel,After water-oil separating, oil is mutually recycled, and water enters recirculated water tank 17 after heat exchanger 18, and through cleaning shoe, (including first scrape mud to bed mudPlate, second cleaning shoe etc.) collect to bed mud collection port, be emitted into feed reservoir, fixed gas by axial flow blower 12 pump to drying chamber,It is discharged after entering the burning of burner 23 of the intracavitary charging end of thermal desorption after adsorption tanks.
(5) in discharge system residue well discharging sealing, it is dust-proof be flexible coupling, sealing screw propeller to shower humidification machine, sprayIt is discharged after leaching clear water cooling depositing dust.
In prizing body operational process, nitrogen protection is passed through in the thermal desorption cavity of upper sled and lower sled.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, thoughSo the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this professionMember, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modificationFor the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the inventionAny simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.