A kind of method in tunnel type fruit and vegetable drying room and fruit and vegetable dryingTechnical field
The present invention relates to a kind of baking room, in particular to a kind of equipment for drying fruits and vegetables.
Background technique
The dryer of the prior art has belt drying machine, tunnel drier, cylindrical dryer etc., and tunnel drierBecause its structure setting is reasonable, low energy consumption, yield is high, operating is convenient, and the especially fruits and vegetables such as jujube, mushroom, fructus lycii, capsicum obtainExtensive utilization.
Common tunnel drier includes the drying cabinet being arranged on pedestal, and pedestal is equipped with driving drying vehicle disengaging and driesThe driving mechanism of dry cabinet, fruits and vegetables are dried in drying box body, and the intracorporal hot gas cycle of drying box is bad, cause the temperature differenceGreatly, and warm area separation can not be carried out；Driving mechanism generallys use chain rail structure, and chain rail extends to outside drying box, causes even if settingIt is equipped with rolling screen door, can not also accomplish sealing thoroughly, heat loss is larger.To solve the above-mentioned problems, public affairs on October 16th, 2013It accuses and number discloses a kind of tunnel type drying device for a Chinese invention patent of 102432199 B of CN, in the drying box body of this deviceIt is equipped with the first drying cavity and the second drying cavity, the first drying cavity is located at the surface of second drying cavity, the first drying cavityHanging interlayer, the side wall and drying of the first drying cavity and second drying cavity are formed between bottom plate and the top plate of the second drying cavityVertical hot-air channel is constituted between the side wall of cabinet, vertical hot-air channel is connected to hanging interlayer, the top plate of the first drying cavity withIt dries between the top plate of cabinet and constitutes horizontal hot-air channel between the bottom plate of the second drying cavity and the bottom plate for drying cabinet,The horizontal hot-air channel is connected to vertical hot-air channel, and hot blast feeding pipeline is connected in hanging interlayer, which can realize heatCirculation of the wind on drying box body length direction, but dry cabinet and communicate with the outside world, thermal losses is big, and the drying degree of fruits and vegetables is notUniformly, in addition, fruits and vegetables are oven-dried under the same temperature section, fruits and vegetables are easy excessively to be dried, and the quality after fruit and vegetable drying is bad.In addition, in the prior art, the heat dissipation on ground is also very important heat loss channel, and since drying box body length is big, ground is notMake isothermal holding, can also consume a large amount of thermal energy.
Summary of the invention
For the defects in the prior art, it is an object of the invention to overcome the deficiencies in the prior art described above place, mentionsFor a kind of tunnel type fruit and vegetable drying room, solve the problems, such as that thermal losses is big and air-flow not circulation, thermal losses is small in the present invention, sectionCan, fruit and vegetable drying degree is uniform, and fruit and vegetable drying effect is good, improves the quality of dry fruit vegetable.
The object of the present invention is achieved like this: a kind of tunnel type fruit and vegetable drying room, including the drying room being arranged on pedestal,Pedestal is equipped with the driving mechanism of driving drying vehicle disengaging drying room, and the drying room includes outer case and internal box, outer caseThere are circulation air path between internal box, the interior top positioned at internal box of circulation air path is equipped with several circulating fans, follows with describedRing blower is corresponding to be equipped with heater, and the side wall of internal box is equipped with several circulating air openings；Internal box is connected equipped with secondary air channelAmbient atmosphere, the secondary air channel, which is equipped with, mends air-valve；Humid air discharger is additionally provided on internal box or outer case；The drivingMechanism is located in drying room on the whole；The both ends of drying room are equipped with switchable door.
When the invention works, driving mechanism driving drying vehicle moves in internal box, and the steering of control loop blower makes interiorThe intracorporal hot gas of case flows from top to bottom and enters circulation air path along circulating air opening, or makes hot gas in internal box from lower pastUpper flowing, hot gas enter circulation air path from heater outflow, enter in internal box further along circulating air opening, open and mend air-valve, pastOutside air is filled into drying room, makes the moisture generated during the drying process that drying room be discharged by humid air discharger；ThisInvention makes the upper and lower part of fruits and vegetables that can obtain drying by circulating for gas, keeps the drying degree of fruits and vegetables uniform, mentionsHigh drying effect, the quality after fruit and vegetable drying is good, can be applied to the back tender of the fruits and vegetables such as jujube, mushroom, fructus lycii, capsicum and agaricIn work.
In order to further increase the drying quality of fruits and vegetables, the drying room is separated into several units by Windscreen Fan on the wholeSection, each unit section are respectively provided with the temperature control system of control this elementary section hot blast temperature, this, which is designed, can be achieved in drying room notQuality with section different operating temperature, after improving fruit and vegetable drying.Windscreen Fan can play preferably isolation sealing process, avoid notWith the heat exchange between elementary section, so that the temperature of each unit section is easier to control, also relatively more evenly.
A further improvement of the present invention is that the drying room can also be isolated door on the whole is separated into several unitsSection, each unit section are respectively provided with the temperature control system of control this elementary section hot blast temperature.Isolating door also has good isolationEffect.For the temperature for being further ensured that each unit section, heating, humidity control device, such as steam disc can also be set on isolating doorPipe, electrothermal tube, humidifying spraying nozzle etc..
In order to make the operating temperature of each unit section be independent of each other, the Windscreen Fan includes being separately positioned on drying room both endsTwo groups and at least one set that is arranged in the middle part of drying room.
In order to further increase the reliability that the present invention works, the circulating fan is arranged in interior top of the box center positionIt sets, heater is arranged in after the wind prepass or wind of circulating fan in channel, and one end air port of circulating fan is followed towards internal boxThe other end opening of ring blower is equipped with the split-wind plate of V-arrangement, and two air ports that the V-arrangement split-wind plate is formed are respectively facing outer caseTwo sides.
In order to further increase the circulation of cabinet interior air-flow, the flow area of the circulating air opening is on the side wall of internal boxIt is gradually increased from the top down, this design increases the circulation of gas, improves fruit and vegetable drying effect.
In order to further increase reliability when transmission drying vehicle, the driving mechanism includes drive sprocket and driven chainWheel, drive sprocket are connect with motor drive, and around chain is equipped between drive sprocket and driven sprocket, chain outside spacers are equipped with and push awayThe push rod of dynamic drying vehicle disengaging drying room, it is corresponding with the wheel position of drying vehicle on pedestal to be equipped with Crane Rail.
In order to further increase the efficiency of drying fruits and vegetables, the driving mechanism is symmetrically arranged with two groups.
It radiates to reduce from pedestal, the pedestal is equipped with insulating layer.
The invention also discloses a kind of method for carrying out fruit and vegetable drying using above-mentioned tunnel type fruit and vegetable drying room, Windscreen FansOr drying room is successively divided into 4 elementary sections by isolating door from front to back, 4 elementary sections respectively correspond heating zone, quickly at a slow speedHeating zone, constant temperature drying zone and room temperature cooling area, the temperature of the heating zone at a slow speed are 30-35 DEG C, the area that is rapidly heatedTemperature is 35-70 DEG C, and the temperature of the flat-temperature zone is 60 ± 2 DEG C, and the temperature in the room temperature cooling area is 20-30 DEG C.
In order to further increase working efficiency of the invention, the switchable door gap is opened, and when opening door, utilizes driveMotivation structure push-in a batch is equipped with the drying vehicle of material to be dried, while releasing corresponding drying and drying vehicle after cooling.
In order to further increase working efficiency of the invention, the switchable door is normally opened, and driving mechanism is gradually pushed into dressNeed the drying vehicle of material drying, while releasing corresponding drying and drying vehicle after cooling.
In order to keep the drying degree of fruits and vegetables more uniform, at least corresponding circulating fan of constant temperature drying zone is in forward and reverseIn operating alternately, this design makes hot gas flow or flow from top to bottom from the bottom up, and the upper and lower part of fruits and vegetables can obtainQuality to drying, after improving fruit and vegetable drying.
Detailed description of the invention
Fig. 1 is side view of the invention.
Fig. 2 is main view of the invention.
Fig. 3 is top view of the invention.
Fig. 4 is perspective view of the invention.
Fig. 5 is the D-D direction view of Fig. 3.
Fig. 6 is a kind of three-dimensional structure diagram for hiding a kind of circulated air trend of pedestal, stoving rack and room body in the present invention.
Fig. 7 is a kind of stereochemical structure for hiding another circulated air trend of pedestal, stoving rack and room body in the present inventionFigure.
Fig. 8 is the partial enlarged view of A in Fig. 2.
Fig. 9 is the partial enlarged view of B in Fig. 5.
Figure 10 is the partial enlarged view of C in Fig. 5.
Figure 11 is the partial enlarged view of E in Fig. 6.
Figure 12 is the partial enlarged view of F in Fig. 6.
Figure 13 is the partial enlarged view of H in Fig. 6.
Figure 14 is the partial enlarged view of G in Fig. 7.
Figure 15 is another three-dimensional structure diagram for hiding pedestal, stoving rack and room body in the present invention.
Wherein, 1 pedestal, 2 outer cases, 3 mend air-valves, 4 secondary air channels, 5 humid air dischargers, 6 drying vehicles, 7 push rods, in 8Cabinet, 9,10 circulation air paths, 11 motors, 12 drive sprockets, 13 chains, 14 driven sprockets, 15 circulating air openings, 16 air curtain windMachine, 17 heaters, 18 circulating fans, 19 Crane Rails, 20 split-wind plates, 21 plunger valves four, 22 steam pipes, 23 steam discharge components, 24Plunger valve three, 25 pneumatic control valves, 26 pressure gauges, 27 plunger valves one, 28 plunger valves two, 29 tee tubes, 30 steam inlet pipes, 31 filteringsDevice.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1
A kind of tunnel type fruit and vegetable drying room as shown in Fig. 1~14, including the drying room being arranged on pedestal 1, to reduce heatAmount is lost, and insulating layer is additionally provided on pedestal 1, and pedestal 1 is equipped with the driving mechanism that driving drying vehicle 6 passes in and out drying room, dryingRoom includes outer case 2 and internal box 8, and there are circulation air path 10 between outer case 2 and internal box 8, circulation air path 10 is interior positioned at interiorThe top of cabinet 8 is equipped with several circulating fans 18, corresponding with circulating fan 18 to be equipped with heater 17, and the setting of circulating fan 18 exists8 top center position of internal box, heater 17 are arranged in after the wind prepass or wind of circulating fan 18 in channel, circulating fan 18One end air port towards internal box 8, the other end opening of circulating fan 18 is equipped with the split-wind plate 20 of V-arrangement, V-arrangement split-wind plate 20Two air ports formed are respectively facing 2 two sides of outer case, and the side wall of internal box 8 is equipped with several circulating air openings 15, circulating air opening15 flow area is gradually increased from the top down on the side wall of internal box 8, and circulating air opening 15 is rounded；Outer case 2 or interior caseBody 8 is equipped with secondary air channel 4 and connects ambient atmosphere, and secondary air channel 4, which is equipped with, mends air-valve 3；Humid air discharge dress is additionally provided in outer case 2Set 5；Driving mechanism is located in drying room on the whole；The both ends of drying room are equipped with switchable door 9, and switchable door 9 can beRolling screen door, mobile door etc., Windscreen Fan 16 include being separately positioned on two groups of drying room both ends and being arranged in the middle part of drying roomThree groups, drying room is separated into 4 elementary sections by Windscreen Fan 16 on the whole, and each unit section, which is respectively provided with, controls this elementary sectionThe temperature control system of hot blast temperature；Driving mechanism includes drive sprocket 12 and driven sprocket 14, and drive sprocket 12 and motor 11 are drivenConnection, around chain 13 is equipped between drive sprocket 12 and driven sprocket 14,13 outside spacers of chain, which are equipped with, pushes drying vehicle 6 to pass in and outThe push rod 7 of drying room, corresponding with the wheel position of drying vehicle 6 on pedestal 1 to be equipped with Crane Rail 19, driving mechanism is symmetrical arrangedThere are two groups；Heater 17 is a kind of steam heater 17, is connected on heater 17 into vapour component and steam discharge component 23, into vapour groupPart includes steam inlet pipe 30, and the exit of steam inlet pipe 30 connects 31 one end of filter, and 31 other end of filter is connected by tee tube 29The input terminal of plunger valve 1 and plunger valve 2 28 is connect, is equipped with pressure on the input terminal of plunger valve 1 and the pipeline of output endTable 26, the output end of plunger valve 2 28 connect 25 one end of pneumatic control valve, and 25 other end of pneumatic control valve connects plunger valve 3 24The other end of one end, plunger valve 3 24 and plunger valve 1 is connected 22 one end of steam pipe, and 22 other end of steam pipe passes through columnPlug valve 4 21 is connect with 17 one end of heater, and 17 other end of heater is connect with steam discharge component 23, and steam discharge component 23 is by extra steamingDrying room is discharged in vapour.
Using above-mentioned tunnel type fruit and vegetable drying room carry out fruit and vegetable drying method, Windscreen Fan 16 by drying room from front to backSuccessively it is divided into 4 elementary sections, it is cold that 4 elementary sections respectively correspond heating zone, the area that is rapidly heated, constant temperature drying zone and room temperature at a slow speedBut area, the temperature of heating zone is 30-35 DEG C at a slow speed, and the temperature in the area that is rapidly heated is 35-70 DEG C, and the temperature of flat-temperature zone is 60 ± 2DEG C, the temperature in room temperature cooling area is 20-30 DEG C；Switchable 9 gap of door is opened, and when opening door 9, utilizes driving mechanism push-in oneThe drying vehicle 6 equipped with material to be dried is criticized, while releasing corresponding drying and drying vehicle after cooling 6；Constant temperature drying zone pairIn forward and reverse operating alternately, the circulating fan 18 of other elementary sections can also synchronize progress just to the circulating fan 18 answeredTo and antiport.
When the invention works, motor 11 drives the rotation of head sprocket, and the rotation of head sprocket drives the movement of driven sprocket 14,Driven sprocket 14 drives the movement of chain 13, and chain 13 is for linear motion in pedestal 1, thrust of the drying vehicle 6 in push rod 7Under it is for linear motion along Crane Rail 19, steam from steam inlet pipe 30 enter, pneumatic control valve 25, plunger valve 2 28 and plunger valve3 24 are in normally open, sell adjustable column plug valve 2 28 on a commission basis according to the pressure that the input end pressure gauge 26 of plunger valve 1 measuresFolding, steam becomes dry hot gas after heater 17, passes through the folding for the plunger valve 4 21 connecting with heater 17It spends to control the hot gas flow inputted in drying room, hot gas flow is bigger, and the temperature heating in elementary section is faster, and temperature is got overHeight, Windscreen Fan 16 will be divided into 4 elementary sections in drying room, be followed successively by heating zone, the area that is rapidly heated, constant temperature at a slow speed from front to backArea and room temperature cooling area, hot gas are blown from top to bottom under the action of circulating fan 18, meanwhile, under the action of split-wind plate 20, heatGas is divided into left and right two-way and flows from top to bottom, at this point, the steering of circulating fan 18 is denoted as rotating forward, follows by what is increased from top to bottomBehind ring air port 15, circulating air opening 15 is bigger, and throughput is bigger, and hot gas flows from lower to upper in circulation air path 10, and hot gas is by dividingAerofoil 20 enters in internal box 8, and the continuous ringing of hot gas is in fruits and vegetables；When changing 18 rotation direction of circulating fan, recyclingUnder the action of blower 18, the hot gas in internal box 8 flows from lower to upper, and hot gas successively passes through heater 17 and split-wind plate 20 flowsIt to circulation air path 10, flows downward, is again introduced into internal box 8 along circulating air opening 15, the continuous ringing of hot gas is in fruitVegetable；At a slow speed heating zone, can control in be rapidly heated area and room temperature cooling area circulating fan 18 to rotate forward or positive and negative rotation, under flat-temperature zoneCorresponding circulating fan 18 is positive and negative rotation, keeps fruit and vegetable drying degree uniform；The moisture generated in drying course is arranged by humid airDrying room is discharged in device 5 out；Drying room is closed when the invention works, is reduced thermal losses, is made fruits and vegetables by circulating for gasUniform drying, the same drying room is interior to realize the drying of multi-temperature section, improves drying effect, the quality after fruit and vegetable drying is good, can answerFor in the drying work of the fruits and vegetables such as jujube, mushroom, fructus lycii, capsicum and agaric.
Embodiment 2
The difference is that, switchable door 9 is normally opened with method in embodiment 1, driving mechanism be gradually pushed into equipped with toThe drying vehicle 6 of material drying, while releasing corresponding drying and drying vehicle after cooling 6.
Embodiment 3
A kind of tunnel type fruit and vegetable drying room as shown in figure 15, difference from example 1 is that, circulating air opening 15 is inRectangle.
The present invention is not limited to the above embodiments, it should be noted that the corresponding humid air discharger 5 of each unit sectionHumid air can be discharged respectively, drying room is discharged after can also summarizing, the steam discharge component 23 connecting with heater 17 can respectively will be moreRemaining steam discharge, is discharged drying room after can also summarizing excess steam, in addition, realizing that fruit and vegetable drying is not limited to using steam pipe 22Road inputted in drying room it is dry after hot gas fruits and vegetables are dried, it is possible to use other heat conduction oil circuits etc. to fruits and vegetables intoRow drying, Windscreen Fan can also be completely or partially isolated replaced door, and heating, damping dress can also be arranged on isolating doorIt sets, such as steam pipe coil, electrothermal tube, humidifying spraying nozzle etc.；On the basis of technical solution disclosed by the invention, the technology of this fieldAccording to disclosed technology contents, some of which technical characteristic can be made personnel by not needing creative laborReplacement and deformation, these replacements and deformation all fall in the scope of protection of the present invention.