CN111718759B - Multi-stage beam plasma continuous treatment device and method for solid waste - Google Patents

Abstract

The invention discloses a multi-beam plasma continuous treatment device and a multi-beam plasma continuous treatment method for solid wastes, and the device comprises a feed hopper, a gasification furnace, a multi-beam plasma treatment assembly, a discharge assembly, a gas treatment assembly and a rack, wherein the gasification furnace is arranged on the rack, the feed hopper is communicated with the top end of the gasification furnace, the discharge assembly is communicated with the bottom end of the gasification furnace, the multi-beam plasma treatment assembly is arranged in the gasification furnace and is connected with the gas treatment assembly, the gasification furnace comprises a preheating chamber, a gasification chamber and a reaction chamber, one end of the preheating chamber is connected with the feed hopper, the other end of the preheating chamber is connected with the gasification chamber, and the space surrounding the preheating chamber and the gasification chamber in the gasification furnace is the reaction chamber. The multi-stage gasification treatment is carried out on the solid waste by adopting the relatively staggered arrangement mode of the multiple beams of plasmas, so that the gasification treatment of the solid waste is more thorough and the gasification efficiency is improved.

Description

Multi-stage beam plasma continuous treatment device and method for solid waste

Technical Field

The invention relates to the technical field of waste treatment, in particular to a multi-beam plasma continuous treatment device and a treatment method for solid waste.

Background

With the improvement of the living standard of people and the high importance of people on the health condition, the domestic garbage and the medical garbage are increased rapidly. The medical waste is a waste which is generated in the professional activities of clinical treatment, health care, prevention and the like of medical institutions and has certain related hazards of space pollution, acute infection, latent pollution, corrosivity and the like. With the rapid development of medical technology, the number of people admitted to hospitals and the number of diagnosis and treatment people in China rapidly increase, medical systems and disposable medical and sanitary appliances are widely used, the generation amount of medical wastes is on the trend of increasing year by year, and huge harmless treatment of medical wastes, domestic wastes and sludge brings huge challenges. The most common garbage disposal methods at present can generate secondary pollution regardless of landfill or incineration, and the possibility of harming human health exists.

The plasma technology is different from an incineration mode, the temperature of the plasma can reach thousands of degrees centigrade, the plasma technology utilizes the characteristic that thermal plasma has higher temperature and energy density to rapidly carry out high-temperature pyrolysis on the waste, the product is a glass state inorganic substance, the generated gas is decomposed into atoms and simplest molecules through a reduction reaction in a high-temperature environment, and some toxic organic substances in the radioactive waste, particularly dioxin and furan, can be thoroughly decomposed into nontoxic small molecular substances, so that the formation of dioxin-like toxic substances can be effectively inhibited.

The existing plasma technology garbage treatment equipment basically treats garbage by means of correlation gasification of one beam of plasma or a plurality of beams of plasma, and the two beams of plasma are simultaneously acted on the garbage at the same position regardless of the mode of correlation of one beam or a plurality of beams of plasma, so that only one furnace of garbage can be treated at a time and the garbage can not continuously work, and the garbage gasification treatment efficiency is low.

Disclosure of Invention

The invention aims to provide a multi-stage beam plasma continuous treatment device and a treatment method for solid waste, which adopt a relative staggered arrangement mode of a plurality of beams of plasmas to carry out multi-stage gasification treatment on the solid waste, lead the gasification treatment of the solid waste to be more thorough and improve the gasification efficiency, and solve the technical problems mentioned in the background technology.

The purpose of the invention is realized by the following technical scheme:

a multi-beam plasma continuous treatment device for solid wastes comprises a feed hopper, a gasification furnace, a multi-beam plasma treatment assembly, a discharge assembly, a gas treatment assembly and a rack, wherein the gasification furnace is installed on the rack, the feed hopper is communicated with the top end of the gasification furnace, the discharge assembly is communicated with the bottom end of the gasification furnace, the multi-beam plasma treatment assembly is installed in the gasification furnace and is connected with the gas treatment assembly, the gasification furnace comprises a preheating chamber, a gasification chamber and a reaction chamber, one end of the preheating chamber is connected with the feed hopper, the other end of the preheating chamber is connected with the gasification chamber, and the space in the gasification furnace, which surrounds the preheating chamber and the gasification chamber, is the reaction chamber;

the multi-stage beam plasma processing assembly comprises a plurality of multi-stage beam plasma processing units, each multi-stage beam plasma processing unit comprises a plurality of first plasma generators and a plurality of second plasma generators, the first plasma generators are uniformly installed on one side wall of the gasification furnace at intervals, the second plasma generators are uniformly installed on the other side wall of the gasification furnace at intervals, each second plasma generator is located between two adjacent first plasma generators, and a gasification cavity matched with the first plasma generators and the second plasma generators is arranged on the gasification chamber.

When the solid waste passes through the multi-stage beam plasma processing unit, the plurality of first plasma generators and the plurality of second plasma generators are alternately staggered, the plasma generators form a multi-stage beam plasma gasification processing structure from the top of the gasification furnace to the bottom, and the solid waste is sequentially subjected to multi-stage gasification processing along the falling route of the solid waste, so that the gasification processing of the solid waste is more thorough, the power of one beam of plasma generator corresponding to each stage is not required to be high, the best garbage gasification effect can be achieved, and the energy consumption is greatly saved.

Further, the top of gasifier still is equipped with the gas outlet, the gas treatment subassembly pass through exhaust duct with the gas outlet intercommunication.

The beneficial effects of the above preferred scheme are: and the gas outlet is used for discharging hot gas of the gasification furnace into the gas treatment assembly through the gas outlet via the gas exhaust pipeline, treating the gasified gas, performing nitrogen separation, and conveying the separated nitrogen to the plasma generator for recycling.

Further, the gas treatment subassembly is including draught fan, gas treatment and separator, nitrogen gas jar and the nitrogen gas pipeline that connects gradually, the draught fan with exhaust duct connects, the one end of nitrogen gas pipeline with the nitrogen gas jar is connected, the other end of nitrogen gas pipeline with first plasma generator and second plasma generator intercommunication, install the control valve on the nitrogen gas pipeline.

The beneficial effects of the above preferred scheme are: the separated nitrogen is conveyed to a nitrogen tank for storage through a nitrogen discharge pipe on the gas treatment and separator, and is used for providing the nitrogen for the plasma generator, the gas is recycled, and the rest gas is discharged and collected from an exhaust port.

Further, be equipped with gas vent and nitrogen discharge pipe on the gas treatment and separator, gas treatment and separator with between the nitrogen gas jar through the nitrogen discharge pipe intercommunication.

The beneficial effects of the above preferred scheme are: the gas generated after gasification in the gasification furnace is treated by the gas treatment and separator, and the separated impurity gas is discharged through the exhaust port.

Furthermore, the preheating chamber and the gasification chamber are horn cylinders which are integrally formed, the cylinder diameter of each horn cylinder is increased from the preheating chamber to the gasification chamber, and a plurality of uniformly distributed preheating holes are formed in the preheating chamber.

The beneficial effects of the above preferred scheme are: the hot chamber is provided with a plurality of uniformly distributed preheating holes, and high-temperature gas in the furnace can preheat materials through the small holes of the preheating chamber.

Furthermore, gas guide ring bodies are arranged on two sides of the top of the gasification furnace.

The beneficial effects of the above preferred scheme are: the purpose is to direct the hot gases produced in the gasification reaction upwards through the gas outlet and into the gas treatment assembly.

Further, a funnel-shaped discharge hole is installed at the bottom of the gasification furnace, an oscillator and a glass peephole are installed on the outer wall of the funnel-shaped discharge hole, a position sensor is further arranged on the inner wall of the funnel-shaped discharge hole, and the position sensor is located below the glass peephole.

The beneficial effects of the above preferred scheme are: the oscillator can shake the waste residue down after starting, and the peephole is used as an access hole.

Further, the discharging assembly comprises a metal discharger, a spiral conveyor and a discharging channel communicated with the bottom end of the gasification furnace, the metal discharger is installed in the middle of the discharging channel, and the spiral conveyor is installed at the tail end of the discharging channel.

The beneficial effects of the above preferred scheme are: the metal discharger is used for discharging glass bodies or metal waste residues, and the screw conveyor is used for discharging the rest of the light waste residues.

Further, the metal drainer comprises a metal drain pipeline and a metal drain valve, the metal drain pipeline is communicated with the discharge channel, and the metal drain valve is mounted on the metal drain pipeline;

the spiral conveyor comprises a feeding barrel, a spiral impeller, a rotating shaft and a rotating motor, wherein the spiral impeller is installed on the rotating shaft, one end of the rotating shaft is fixedly connected to the inner wall of the first end of the feeding barrel, the other end of the rotating shaft penetrates through the inner wall of the second end of the feeding barrel and is connected with the rotating motor, and a discharging pipe is arranged on the side wall of the second end of the feeding barrel.

The beneficial effects of the above preferred scheme are: when the rotating motor is driven, the spiral impeller rotates along with the rotating shaft, and waste residues can be extruded out of the discharging pipe.

A method for treating a solid waste by using a multi-beam plasma continuous treatment device comprises the following steps:

s1, charging solid waste: feeding solid waste to be treated into a feed hopper;

s2, starting the multi-stage beam plasma processing assembly: opening a control valve on a nitrogen pipeline, starting a first plasma generator and a second plasma generator, and sequentially gasifying fallen solid garbage by a plurality of first plasma generators and second plasma generators distributed in an up-down grading manner when the solid garbage sequentially passes through a preheating chamber and a gasification chamber;

s3, waste residue discharge: discharging the glass or metal in the gasified solid waste through a discharge channel along a metal discharge pipeline; when waste residues with the weight lighter than that of the glass body or metal are accumulated to the position sensor, the rotating motor is started, and the screw conveyor discharges the waste materials through the discharge pipe;

s4, exhaust: gas generated in the reaction chamber is discharged into the induced draft fan through the gas outlet;

s5, gas treatment and separation: and after the gas discharged into the induced draft fan is treated by gas and discharged by a separator, inputting the nitrogen into a nitrogen tank for storage and standby.

The invention has the beneficial effects that:

according to the multi-beam plasma continuous treatment device for the solid waste, the solid waste is conveyed into the gasification furnace through the feed hopper, the multi-beam plasma treatment component is started to carry out gasification treatment on the solid waste, and the gas treatment component provides inert gas for the multi-beam plasma treatment component, so that oxidation reaction in the furnace can be inhibited; discharging the medical or domestic solid waste after gasification treatment through a discharging component; when the solid waste passes through the multi-stage beam plasma processing unit, the first plasma generators and the second plasma generators are oppositely staggered from top to bottom, the plasma generators form a multi-stage beam plasma gasification processing structure from top to bottom from the top of the gasification furnace to bottom, and the solid waste is sequentially subjected to multi-stage gasification processing for multiple times along the falling route of the solid waste, so that the gasification processing of the solid waste is more thorough, the power of one plasma generator corresponding to each stage is not required to be very high, the best garbage gasification effect can be achieved, and the energy consumption is greatly saved; the nitrogen is applied to the plasma generator, so that the plasma guiding function is realized, the oxidation reaction in the furnace can be inhibited, the explosion of the gasification furnace is prevented, and the personal safety of operators is protected; the heat-insulating layer is wrapped on the periphery of the whole furnace body, so that the loss of the temperature in the furnace can be reduced, the gasification efficiency is increased, the overhigh surface temperature of the furnace body can be prevented, and the personal safety of operators is protected; the furnace body has simple structure, the peep window is arranged to facilitate observing the conditions in the furnace, and meanwhile, the peep window is also an access hole, so the maintenance is very convenient; the arrangement of the position sensor can control the spiral conveying unit to convey the waste residues, so that the waste residue conveying is carried out discontinuously, and the automatic waste material conveying is realized.

Drawings

FIG. 1 is a schematic view showing the overall construction of a multi-beam plasma continuous treatment apparatus for solid waste according to the present invention;

FIG. 2 is a schematic view of the structure of the gasification furnace of the present invention;

FIG. 3 is a plan view of the multi-beam plasma continuous treatment apparatus for solid waste of the present invention;

FIG. 4 is a schematic view of the installation structure of the feed hopper, the preheating chamber and the gasification chamber of the present invention;

in the figure, 1-a feed hopper, 2-a gasification furnace, 201-a preheating chamber, 202-a gasification chamber, 203-a reaction chamber, 3-a multi-stage beam plasma processing assembly, 301-a first plasma generator, 302-a second plasma generator, 4-a discharging assembly, 5-a gas processing assembly, 6-a frame, 7-a gasification cavity, 8-an air outlet, 9-an exhaust pipeline, 10-an induced draft fan, 11-a gas processing and separating device, 1101-an exhaust port, 1102-a nitrogen discharging pipe, 12-a nitrogen tank, 13-a nitrogen pipeline, 14-a control valve, 15-a preheating hole, 16-a gas guide ring body, 17-a funnel type discharging port, 18-an oscillator, 19-a glass peep window, 20-a position sensor and 21-a discharging channel, 22-metal drainage pipeline, 23-metal drainage valve, 24-feeding barrel, 25-spiral impeller, 26-rotating shaft, 27-rotating motor and 28-discharging pipe.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides a technical solution:

referring to fig. 1 and 3, a multi-beam plasma continuous processing apparatus for solid waste includes afeed hopper 1, agasification furnace 2, a multi-beamplasma processing assembly 3, adischarging assembly 4, agas processing assembly 5 and aframe 6, wherein thegasification furnace 2 is mounted on theframe 6, thefeed hopper 1 is communicated with the top end of thegasification furnace 2, thedischarging assembly 4 is communicated with the bottom end of thegasification furnace 2, the multi-beamplasma processing assembly 3 is mounted in thegasification furnace 2 and is connected with thegas processing assembly 5, thegasification furnace 2 includes apreheating chamber 201, agasification chamber 202 and areaction chamber 203, one end of thepreheating chamber 201 is connected with thefeed hopper 1, the other end of thepreheating chamber 201 is connected with thegasification chamber 202, and a space surrounding thepreheating chamber 201 and thegasification chamber 202 in thegasification furnace 2 is thereaction chamber 203;

the multi-stage beamplasma processing assembly 3 comprises a plurality of multi-stage beam plasma processing units, each multi-stage beam plasma processing unit comprises a plurality offirst plasma generators 301 and a plurality ofsecond plasma generators 302, thefirst plasma generators 301 are uniformly installed on one side wall of thegasification furnace 2 at intervals, thesecond plasma generators 302 are uniformly installed on the other side wall of thegasification furnace 2 at intervals, eachsecond plasma generator 302 is located between two adjacentfirst plasma generators 301, and agasification cavity 7 matched with thefirst plasma generators 301 and thesecond plasma generators 302 is arranged on thegasification chamber 202.

According to the multi-beam plasma continuous treatment device for the solid waste, the solid waste is conveyed into thegasification furnace 2 through thefeed hopper 1, the multi-beamplasma treatment component 3 is started to gasify the solid waste, and thegas treatment component 5 provides inert gas for the multi-beamplasma treatment component 3, so that oxidation reaction in the furnace can be inhibited; the medical or domestic solid waste after gasification treatment is discharged through adischarging component 4; when the solid waste passes through the multi-stage beam plasma processing unit, because a plurality offirst plasma generators 301 and a plurality ofsecond plasma generators 302 are alternately staggered, the plasma generators downwards form a multi-stage beam plasma gasification processing structure from the top of thegasification furnace 2, the solid waste is sequentially subjected to multi-stage gasification processing along the falling route of the solid waste, so that the solid waste is gasified and processed more thoroughly, and each stage does not need to be very high in power corresponding to one beam of plasma generator, the best garbage gasification effect can be achieved, and the energy consumption is greatly saved.

Four or more plasma generators can be selectively arranged in the middle of thegasification furnace 2 of the invention, and the plasma generators penetrate through the furnace wall and extend to the outside of thegasification chamber 202.

Referring to fig. 1, agas outlet 8 is further disposed at the top end of thegasification furnace 2, and thegas treatment assembly 5 is communicated with thegas outlet 8 through an exhaust duct 9.

The top end of thegasification furnace 2 is also provided with agas outlet 8, thegas outlet 8 is used for discharging hot gas of thegasification furnace 2 into thegas treatment component 5 through agas outlet 8 via a gas exhaust pipeline 9, the gasified gas is treated and subjected to nitrogen separation, and the separated nitrogen is conveyed to the plasma generator for recycling.

Referring to fig. 1, thegas treatment assembly 5 includes an induceddraft fan 10, a gas treatment and separator 11, anitrogen tank 12 and anitrogen pipeline 13, which are connected in sequence, the induceddraft fan 10 is connected with the exhaust pipeline 9, one end of thenitrogen pipeline 13 is connected with thenitrogen tank 12, the other end of thenitrogen pipeline 13 is communicated with thefirst plasma generator 301 and thesecond plasma generator 302, and thenitrogen pipeline 13 is provided with acontrol valve 14.

The gas treatment and separator 11 of thegas treatment assembly 5 of the present invention employs the prior art apparatus, and the separated nitrogen is transported to thenitrogen tank 12 through thenitrogen discharge pipe 1102 of the gas treatment and separator 11 for storage, so as to provide nitrogen for the plasma generator, the gas is recycled, and the rest gas is discharged from thegas discharge port 1101 for collection.

Each plasma generator outer end all is equipped with cable connector and the interface that admits air, and the interface that admits air is used for connectingnitrogen gas pipeline 13, spouts nitrogen gas toward plasma generator the inside, and the effect of filling nitrogen gas is: plasma guiding function; the oxidation reaction in the furnace is inhibited, thegasification furnace 2 is prevented from exploding, and the personal safety of operators is protected.

Referring to fig. 1, anexhaust port 1101 and anitrogen discharge pipe 1102 are disposed on the gas treatment and separation unit 11, and the gas treatment and separation unit 11 and thenitrogen gas tank 12 are communicated through thenitrogen discharge pipe 1102.

The gas generated by gasification in thegasification furnace 2 of the present invention is removed through thegas outlet 1101, and the impurity gas is treated and separated by the gas treatment and separation unit 11.

Referring to fig. 2 and 4, thepreheating chamber 201 and the vaporizingchamber 202 are formed as an integrally formed trumpet, the diameter of the trumpet increases from thepreheating chamber 201 to the vaporizingchamber 202, and thepreheating chamber 201 is provided with a plurality of uniformly distributedpreheating holes 15.

Thepreheating chamber 201 and thegasification chamber 202 are formed into a horn cylinder in an integrated mode, a plurality of uniformly distributedpreheating holes 15 are formed in thepreheating chamber 201, and high-temperature gas in the furnace can preheat materials through the preheatingholes 15 of thepreheating chamber 201.

Referring to fig. 2, gasguide ring bodies 16 are disposed on both sides of the top of thegasification furnace 2.

The upper part of thegasification furnace 2 of the invention is provided with a gasguide ring body 16 along the circumference of the inner wall of the furnace, which aims to guide the hot gas generated in the gasification reaction upwards and discharge the hot gas into thegas processing component 5 through thegas outlet 8.

The outer wall of thegasification furnace 2 is provided with the heat preservation layer, so that the temperature loss in the furnace can be reduced, the gasification efficiency is increased, the surface temperature of the furnace body can be prevented from being overhigh, and the personal safety of operators is protected.

Referring to fig. 1, a funnel-shapeddischarge hole 17 is installed at the bottom of thegasification furnace 2, anoscillator 18 and aglass peep window 19 are installed on the outer wall of the funnel-shapeddischarge hole 17, aposition sensor 20 is further arranged on the inner wall of the funnel-shapeddischarge hole 17, and theposition sensor 20 is located below theglass peep window 19.

Theoscillator 18 of the present invention can shake the waste slag down after being started, and the peep hole is used as an access hole.

Theoscillator 18 is arranged at the side position of the outer wall of the furnace body, the middle of the peep window is provided with round high-temperature-resistant glass, and the peep window is used for observing the gasification condition in thereaction chamber 203, the accumulation condition of the treated waste residues and can be used as an access hole.

Referring to fig. 1, the dischargingassembly 4 includes a metal discharger, a screw conveyor, and a dischargingchannel 21 communicated with the bottom end of thegasification furnace 2, the metal discharger is installed in the middle of the dischargingchannel 21, and the screw conveyor is installed at the end of the dischargingchannel 21.

The invention is provided with two drainage channels, the metal drainer is used for draining glass bodies or metal waste residues, and the screw conveyor is used for draining other light waste residues.

The uses of theposition sensor 20 are: vitreous body or metal waste residue discharge back, all the other lighter waste residues are then slowly piled up at auger delivery ware, when the waste residue is piled up to positionsensor 20, start auger delivery ware and transport away the waste material, transport and finish and pause auger delivery ware, wait to pile up this circulation work again whenposition sensor 20 department if the waste residue continues, ejection of compact automatic control has been realized, pile up waste residue self-adaptation andgasification furnace 2 continuous operation, if the waste residue is piled up in the reactingchamber 203 bottom and when not leaking down, then startoscillator 18, shake the waste residue and fall down, wherein relevant technical scheme just have prior art can, no longer describe repeatedly.

Referring to fig. 1, the metal drainer includes ametal drain pipe 22 and a metal drain valve 23, themetal drain pipe 22 is communicated with the dischargingchannel 21, and the metal drain valve 23 is installed on themetal drain pipe 22;

themetal drain pipe 22 can drain accumulated glass or metal slag after the metal drain valve 23 of the present invention is opened.

The screw conveyor comprises a feedingbarrel 24, ascrew impeller 25, a rotatingshaft 26 and arotating motor 27, wherein thescrew impeller 25 is installed on therotating shaft 26, one end of therotating shaft 26 is fixedly connected to the inner wall of the first end of the feedingbarrel 24, the other end of therotating shaft 26 penetrates through the inner wall of the second end of the feedingbarrel 24 to be connected with therotating motor 27, and a dischargingpipe 28 is arranged on the side wall of the second end of the feedingbarrel 24.

When therotary motor 27 is started, thespiral impeller 25 rotates along with the rotatingshaft 26, and waste residues can be extruded out to thedischarge pipe 28.

A method for treating a solid waste by using a multi-beam plasma continuous treatment device comprises the following steps:

s1, charging solid waste: the solid waste to be treated is fed into thefeed hopper 1.

S2, starting the multi-beam plasma processing assembly 3: opening acontrol valve 14 on anitrogen pipeline 13, starting afirst plasma generator 301 and asecond plasma generator 302, and sequentially gasifying fallen solid garbage by a plurality offirst plasma generators 301 andsecond plasma generators 302 distributed in an up-and-down graded manner when the solid garbage sequentially passes through the preheatingchamber 201 and thegasification chamber 202;

and opening a nitrogen valve, starting the operation of the plasma generator, injecting the generated plasma into thegasification cavity 7, enabling the solid waste to enter thegasification chamber 202 to the first-stage gasification cavity 7, performing first plasma gasification treatment, then falling to the second-stage gasification cavity 7, performing second plasma gasification treatment … until the last-stage gasification cavity 7 is subjected to last plasma gasification treatment, and thoroughly gasifying the garbage after the falling solid waste is subjected to multiple times of plasma treatment from top to bottom.

S3, waste residue discharge: discharging the glass or metal in the gasified solid waste through adischarge channel 21 along ametal discharge pipeline 22; when waste slag with a weight lighter than that of glass or metal is accumulated to theposition sensor 20, therotating motor 27 is started, and the screw conveyor discharges waste materials through thedischarge pipe 28;

s4, exhaust: gas generated in thereaction chamber 203 is discharged into the induceddraft fan 10 through thegas outlet 8;

gas generated in the process of gasifying the solid waste can be guided to thegas outlet 8 through the gasguide ring body 16, high-temperature gas passes through the preheatingchamber 201, heat is transferred to the garbage in the preheatingchamber 201 through the preheatinghole 15 of the preheatingchamber 201 and the pipe wall of the preheatingchamber 201, the solid waste can be preheated to a certain extent in advance, the heat energy is recycled, the gasification efficiency is improved, the electric energy consumption is reduced, and the gas generated in thegasification chamber 202 due to gasification can be discharged to thegas outlet 8 through the preheatinghole 15 of the preheatingchamber 201, so that the gas cannot leak from the feed inlet outwards, secondary pollution is prevented, and a cover plate can be arranged at the feed inlet of thefeed hopper 1.

S5, gas treatment and separation: after the gas discharged into the induceddraft fan 10 is treated by the gas and discharged from the separator 11, the nitrogen is input into anitrogen tank 12 for storage and standby.

The induceddraft fan 10 leads the gas in thegasification furnace 2 to the gas treatment and separator 11 for treatment and nitrogen separation, and the separated nitrogen is conveyed to thenitrogen tank 12 for storage through thenitrogen discharge pipe 1102 on the gas treatment and separator so as to provide nitrogen for the plasma generator.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A multi-beam plasma continuous treatment device for solid waste, characterized in that: comprises a feed hopper (1), a gasification furnace (2), a multi-stage beam plasma processing component (3), a discharge component (4), a gas processing component (5) and a frame (6), the gasification furnace (2) is arranged on the frame (6), the feed hopper (1) is communicated with the top end of the gasification furnace (2), the discharging component (4) is communicated with the bottom end of the gasification furnace (2), the multi-stage beam plasma processing component (3) is arranged in the gasification furnace (2) and is connected with the gas processing component (5), the gasification furnace (2) comprises a preheating chamber (201), a gasification chamber (202) and a reaction chamber (203), one end of the preheating chamber (201) is connected with the feed hopper (1), the other end of the preheating chamber (201) is connected with the gasification chamber (202), the space surrounding the preheating chamber (201) and the gasification chamber (202) in the gasification furnace (2) is the reaction chamber (203);

the multi-stage beam plasma processing assembly (3) comprises a plurality of multi-stage beam plasma processing units, each multi-stage beam plasma processing unit comprises a plurality of first plasma generators (301) and a plurality of second plasma generators (302), the first plasma generators (301) are uniformly installed on one side wall of the gasification furnace (2) at intervals, the second plasma generators (302) are uniformly installed on the other side wall of the gasification furnace (2) at intervals, each second plasma generator (302) is located between two adjacent first plasma generators (301), and a gasification cavity (7) matched with the first plasma generators (301) and the second plasma generators (302) is arranged on the gasification chamber (202);

the top end of the gasification furnace (2) is also provided with a gas outlet (8), and the gas treatment assembly (5) is communicated with the gas outlet (8) through an exhaust pipeline (9);

gas treatment subassembly (5) are including draught fan (10), gas treatment and separator (11), nitrogen gas jar (12) and nitrogen gas pipeline (13) that connect gradually, draught fan (10) with exhaust duct (9) are connected, the one end of nitrogen gas pipeline (13) with nitrogen gas jar (12) are connected, the other end of nitrogen gas pipeline (13) with first plasma generator (301) and second plasma generator (302) intercommunication, install control valve (14) on nitrogen gas pipeline (13).

2. The apparatus for continuous processing of solid waste by multi-beam plasma according to claim 1, wherein: be equipped with gas vent (1101) and nitrogen discharging pipe (1102) on gas treatment and separator (11), gas treatment and separator (11) with pass through between nitrogen gas jar (12) nitrogen discharging pipe (1102) intercommunication.

3. The apparatus for continuous processing of solid waste by multi-beam plasma according to claim 1, wherein: the preheating chamber (201) and the gasification chamber (202) are horn cylinders which are integrally formed, the cylinder diameter of each horn cylinder is increased from the preheating chamber (201) to the gasification chamber (202), and a plurality of uniformly distributed preheating holes (15) are formed in the preheating chamber (201).

4. The apparatus for continuous processing of solid waste by multi-beam plasma according to claim 1, wherein: gas guide ring bodies (16) are arranged on two sides of the top of the gasification furnace (2).

5. The apparatus for continuous processing of solid waste by multi-beam plasma according to claim 1, wherein: the gasifier is characterized in that a funnel-shaped discharge hole (17) is installed at the bottom of the gasifier (2), an oscillator (18) and a glass peeping window (19) are installed on the outer wall of the funnel-shaped discharge hole (17), a position sensor (20) is further arranged on the inner wall of the funnel-shaped discharge hole (17), and the position sensor (20) is located below the glass peeping window (19).

6. The apparatus for continuous processing of solid waste by multi-beam plasma according to claim 1, wherein: the discharging assembly (4) comprises a metal discharger, a screw conveyor and a discharging channel (21) communicated with the bottom end of the gasification furnace (2), the metal discharger is installed in the middle of the discharging channel (21), and the screw conveyor is installed at the tail end of the discharging channel (21).

7. The apparatus for continuous processing of solid waste by multi-beam plasma according to claim 6, wherein: the metal drainer comprises a metal drainage pipeline (22) and a metal drainage valve (23), the metal drainage pipeline (22) is communicated with the discharging channel (21), and the metal drainage valve (23) is arranged on the metal drainage pipeline (22);

the spiral conveyor comprises a feeding barrel (24), a spiral impeller (25), a rotating shaft (26) and a rotating motor (27), wherein the spiral impeller (25) is installed on the rotating shaft (26), one end of the rotating shaft (26) is fixedly connected to the inner wall of the first end of the feeding barrel (24), the other end of the rotating shaft (26) penetrates through the inner wall of the second end of the feeding barrel (24) and is connected with the rotating motor (27), and a discharging pipe (28) is arranged on the side wall of the second end of the feeding barrel (24).

8. A method for treating a solid waste by using a multi-stage beam plasma continuous treatment apparatus according to any one of claims 1 to 7, comprising the steps of:

s1, charging solid waste: feeding solid waste to be treated into a feed hopper (1);

s2, starting the multi-stage beam plasma processing assembly (3): opening a control valve (14) on a nitrogen pipeline (13), starting a first plasma generator (301) and a second plasma generator (302), and sequentially gasifying the fallen solid garbage by a plurality of first plasma generators (301) and second plasma generators (302) distributed in an up-and-down grading manner when the solid garbage sequentially passes through a preheating chamber (201) and a gasification chamber (202);

s3, waste residue discharge: discharging glass bodies or metals in the gasified solid waste through a discharging channel (21) along a metal discharging pipeline (22); when waste slag with the weight lighter than that of glass bodies or metal is accumulated to the position sensor (20), the rotating motor (27) is started, and the screw conveyor discharges waste materials through a discharge pipe (28);

s4, exhaust: gas generated in the reaction chamber (203) is discharged into a draught fan (10) through a gas outlet (8);

s5, gas treatment and separation: after the gas discharged into the induced draft fan (10) is treated by gas and discharged by a separator (11), nitrogen is input into a nitrogen tank (12) for storage and standby.

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