A kind of tunnel type fruit and vegetable drying room and the method for fruit and vegetable dryingTechnical field
The present invention relates to a kind of baking room, particularly to a kind of equipment being used for drying fruit and vegerable.
Background technology
The dehydrator of prior art has belt drying machine, tunnel drier, a cylindrical dryer etc., and tunnel drierBecause its structure arranges rationally, energy consumption is low, yield is high, operating is convenient, and the particularly fruit and vegerable such as Fructus Jujubae, Lentinus Edodes, Fructus Lycii, Fructus Capsici obtainExtensively use.
Conventional tunnel drier includes the drying casing arranged on pedestal, and pedestal is provided with driving drying vehicle turnover and driesThe drive mechanism of dry casing, fruit and vegerable are dried in drying baker body, and the hot gas cycle in drying baker body is bad, causes the temperature differenceGreatly, and cannot be carried out warm area separate；Drive mechanism generally uses chain rail structure, and chain rail extends to outside drying baker, even if causing settingBeing equipped with rolling screen door, also cannot accomplish to seal thoroughly, heat scatters and disappears bigger.In order to solve the problems referred to above, on October 16th, 2013 is publicAccuse number Chinese invention patent being CN 102432199 B and disclose a kind of tunnel type drying device, in the drying baker body of this deviceBeing equipped with the first drying cavity and the second drying cavity, the first drying cavity is positioned at the surface of described second drying cavity, the first drying cavityUnsettled interlayer, the first drying cavity and the sidewall of described second drying cavity and drying is formed between the top board of base plate and the second drying cavityConstituting vertical hot-air channel between the sidewall of casing, vertical hot-air channel connects with unsettled interlayer, the top board of the first drying cavity withDry between the top board of casing, and constitute horizontal hot-air channel between the base plate of the second drying cavity and the base plate drying casing,This horizontal hot-air channel and vertical hot blast channel connection, connect in unsettled interlayer and have hot blast feeding pipeline, and this device can realize heatWind circulation on drying baker body length direction, but dry casing and communicate with the external world, and thermal losses is big, and the drying degree of fruit and vegerable is notUniformly, it addition, fruit and vegerable are oven-dried under same temperature section, fruit and vegerable are easily excessively dried, and the quality after fruit and vegetable drying is bad.Additionally, in prior art, the heat radiation on ground is also very important heat loss channel, owing to drying baker body length is big, ground is notMake isothermal holding, also can consume substantial amounts of heat energy.
Summary of the invention
For defect of the prior art, it is an object of the invention to overcome above-mentioned weak point of the prior art, carryFor a kind of tunnel type fruit and vegetable drying room, solving that thermal losses is big and the problem of air-flow not circulation, in the present invention, thermal losses is little, jointCan, fruit and vegetable drying degree is uniform, and fruit and vegetable drying is effective, improves the quality of dry fruit vegetables.
The object of the present invention is achieved like this: a kind of tunnel type fruit and vegetable drying room, including the drying chamber arranged on pedestal,Pedestal is provided with the drive mechanism driving drying vehicle turnover drying chamber, and described drying chamber includes outer case and internal box, outer caseAnd between internal box, leave circulation air path, the top being positioned at internal box in circulation air path is provided with some circulating fans, follows with describedThe corresponding heater that is provided with of ring blower fan, the sidewall of internal box is provided with some circulating air openings；Internal box is provided with secondary air channel and connectsAmbient atmosphere, described secondary air channel is provided with benefit air-valve；Humid air discharger it is additionally provided with on internal box or outer case；Described drivingMechanism is positioned at drying chamber on the whole；The two ends of drying chamber are provided with switchable door.
When the present invention works, drive mechanism drives drying vehicle move in internal box, control circulating fan turn to make interiorSteam in casing flows from top to bottom and enters circulation air path along circulating air opening, or makes the steam in internal box from lower pastUpper flowing, steam exits into circulation air path from heater, enters in internal box further along circulating air opening, opens benefit air-valve, pastFill into outside air in drying chamber, make the dampness produced in drying course discharge drying chamber by humid air discharger；ThisInvention makes the upper and lower of fruit and vegerable to be dried by circulating of gas, and the drying degree making fruit and vegerable is uniform, carriesHigh drying effect, the quality better after fruit and vegetable drying, can be applicable to the back tender of the fruit and vegerable such as Fructus Jujubae, Lentinus Edodes, Fructus Lycii, Fructus Capsici and AuriculariaIn work.
In order to improve the drying quality of fruit and vegerable further, described drying chamber is separated into some unit by Windscreen Fan on the wholeSection, each unit section is respectively provided with the temperature control system controlling this elementary section hot blast temperature, and this design can realize in drying chamber notWith section different operating temperature, improve the quality after fruit and vegetable drying.Windscreen Fan can play preferably isolates sealing process, it is to avoid noExchange with the heat between elementary section so that the temperature of each unit section is easier to control, also the most evenly.
Further improvement of the present invention is, described drying chamber can also be isolated door on the whole and be separated into some unitSection, each unit section is respectively provided with the temperature control system controlling this elementary section hot blast temperature.Isolating door also has good isolationEffect.For being further ensured that the temperature of each unit section, isolating door can also be arranged heat, humidity control device, such as steam discPipe, electrothermal tube, humidifying spraying nozzle etc..
In order to make the operating temperature of each unit section be independent of each other, described Windscreen Fan includes being separately positioned on drying chamber two endsTwo groups and be arranged on the least one set in the middle part of drying chamber.
In order to improve the reliability of present invention work further, described circulating fan is arranged on internal box center of top positionPutting, heater is arranged on after the wind prepass of circulating fan or wind in passage, and the air port, one end of circulating fan, towards internal box, is followedThe other end opening part of ring blower fan is provided with the split-wind plate of V-arrangement, and two air ports that described V-arrangement split-wind plate is formed are respectively facing outer caseBoth sides.
In order to improve the circulation of air-flow in casing further, the flow area of described circulating air opening is on the sidewall of internal boxBeing gradually increased from the top down, this design increases the circulation of gas, improves fruit and vegetable drying effect.
In order to improve reliability during transmission drying vehicle further, described drive mechanism includes drive sprocket and driven chainWheel, drive sprocket is connected with motor-driven, and around equipped with chain between drive sprocket and driven sprocket, chain outside spacers is provided with and pushes awayThe push rod of dynamic drying vehicle turnover drying chamber, corresponding with the wheel position of drying vehicle on pedestal is provided with Crane Rail.
In order to improve the efficiency drying fruit and vegerable further, described drive mechanism is symmetrically arranged with two groups.
Dispelling the heat from pedestal for reducing, described pedestal is provided with heat-insulation layer.
The invention also discloses a kind of method utilizing above-mentioned tunnel type fruit and vegetable drying room to carry out fruit and vegetable drying, Windscreen FanOr drying chamber is divided into 4 elementary sections by isolating door the most successively, 4 elementary section correspondence heating zones at a slow speed respectively, quicklyHeating zone, constant temperature drying zone and room temperature cooling zone, the temperature of described heating zone at a slow speed is 30-35 DEG C, described in be rapidly heated districtTemperature is 35-70 DEG C, and the temperature of described flat-temperature zone is 60 ± 2 DEG C, and the temperature of described room temperature cooling zone is 20-30 DEG C.
In order to improve the work efficiency of the present invention further, described switchable door gap is opened, and when opening, utilization is drivenMotivation structure pushes a collection of drying vehicle equipped with material to be dried, the drying vehicle after releasing corresponding drying simultaneously and cooling down.
In order to improve the work efficiency of the present invention further, described switchable door is normally opened, and drive mechanism progressively pushes dressNeed the drying vehicle of material drying, the drying vehicle after releasing corresponding drying simultaneously and cooling down.
In order to make the drying degree of fruit and vegerable more uniform, the circulating fan that at least constant temperature drying zone is corresponding is at forward and reverselyIn operating alternately, this design makes steam flow from top to bottom or flow from the bottom up, and the upper and lower of fruit and vegerable all can obtainTo being dried, improve the quality after fruit and vegetable drying.
Accompanying drawing explanation
Fig. 1 is the side view of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the top view of the present invention.
Fig. 4 is the axonometric chart of the present invention.
Fig. 5 is the D-D direction view of Fig. 3.
Fig. 6 is a kind of three-dimensional structure diagram of a kind of circulated air trend hiding pedestal, stoving rack and room body in the present invention.
Fig. 7 is a kind of stereochemical structure of the another kind of circulated air trend hiding pedestal, stoving rack and room body in the present inventionFigure.
Fig. 8 is the partial enlarged drawing of A in Fig. 2.
Fig. 9 is the partial enlarged drawing of B in Fig. 5.
Figure 10 is the partial enlarged drawing of C in Fig. 5.
Figure 11 is the partial enlarged drawing of E in Fig. 6.
Figure 12 is the partial enlarged drawing of F in Fig. 6.
Figure 13 is the partial enlarged drawing of H in Fig. 6.
Figure 14 is the partial enlarged drawing of G in Fig. 7.
Figure 15 is the another kind of three-dimensional structure diagram hiding pedestal, stoving rack and room body in the present invention.
Wherein, 1 pedestal, 2 outer case, 3 mend air-valve, and 4 secondary air channels, 5 humid air dischargers, 6 drying vehicles, 7 push rods, in 8Casing, 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 assemblies, 24Plunger valve three, 25 pneumatic control valves, 26 Pressure gauges, 27 plunger valves one, 28 plunger valves two, 29 tee Ts, 30 steam inlet pipes, 31 filterDevice.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
A kind of tunnel type fruit and vegetable drying room as shown in Fig. 1～14, including the drying chamber arranged on pedestal 1, damages for reducing heatLosing, pedestal 1 is additionally provided with heat-insulation layer, pedestal 1 is provided with the drive mechanism driving drying vehicle 6 to pass in and out drying chamber, drying chamber bagInclude outer case 2 and internal box 8, leave circulation air path 10 between outer case 2 and internal box 8, in circulation air path 10, be positioned at internal box 8Top be provided with some circulating fans 18, be provided with heater 17 corresponding with circulating fan 18, circulating fan 18 is arranged on interior caseBody 8 top center position, heater 17 is arranged on after the wind prepass of circulating fan 18 or wind in passage, the one of circulating fan 18End air port is provided with the split-wind plate 20 of V-arrangement towards internal box 8, the other end opening part of circulating fan 18, and V-arrangement split-wind plate 20 is formedTwo air ports be respectively facing outer case 2 both sides, the sidewall of internal box 8 is provided with some circulating air openings 15, circulating air opening 15Flow area is gradually increased on the sidewall of internal box 8 from the top down, and circulating air opening 15 is rounded；In outer case 2 or internal box 8Being provided with secondary air channel 4 and connect ambient atmosphere, secondary air channel 4 is provided with benefit air-valve 3；Humid air discharger 5 it is additionally provided with in outer case 2；Drive mechanism is positioned at drying chamber on the whole；The two ends of drying chamber are provided with switchable door 9, and switchable door 9 can be roller shutterDoor, mobile door etc., Windscreen Fan 16 includes two groups that are separately positioned on drying chamber two ends and is arranged on three groups in the middle part of drying chamber,Drying chamber is separated into 4 elementary sections by Windscreen Fan 16 on the whole, and each unit section is respectively provided with control this elementary section hot blastThe temperature control system of temperature；Drive mechanism includes drive sprocket 12 and driven sprocket 14, and drive sprocket 12 is in transmission connection with motor 11,Around equipped with chain 13 between drive sprocket 12 and driven sprocket 14, chain 13 outside spacers is provided with promotion drying vehicle 6 turnover and driesThe push rod 7 of room, corresponding with the wheel position of drying vehicle 6 on pedestal 1 is provided with Crane Rail 19, and drive mechanism is symmetrically arranged with twoGroup；Heater 17 is a kind of steam heater 17, and heater 17 connects to be had into vapour assembly and steam discharge assembly 23, enters vapour assembly bagIncluding steam inlet pipe 30, the exit of steam inlet pipe 30 connects filter 31 one end, and filter 31 other end connects post by tee T 29It is equipped with Pressure gauge on plug valve 1 and the input of plunger valve 2 28, the input of plunger valve 1 and the pipeline of outfan26, the outfan of plunger valve 2 28 connects pneumatic control valve 25 one end, and pneumatic control valve 25 other end connects plunger valve 3 24 1End, the other end of plunger valve 3 24 and plunger valve 1 is connected steam pipe 22 one end, and steam pipe 22 other end passes through plungerValve 4 21 is connected with heater 17 one end, and heater 17 other end is connected with steam discharge assembly 23, and steam discharge assembly 23 is by excess steamDischarge drying chamber.
Utilizing the method that above-mentioned tunnel type fruit and vegetable drying room carries out fruit and vegetable drying, Windscreen Fan 16 is by drying chamber from front to backBeing divided into 4 elementary sections successively, 4 elementary sections heating zone at a slow speed of correspondence respectively, the district that is rapidly heated, constant temperature drying zone and room temperature are coldBut district, the temperature of heating zone is 30-35 DEG C at a slow speed, and the temperature in the district that is rapidly heated is 35-70 DEG C, and the temperature of flat-temperature zone is 60 ± 2DEG C, the temperature of room temperature cooling zone is 20-30 DEG C；Switchable door 9 gap is opened, and when opening door 9, utilizes drive mechanism to push oneCriticize the drying vehicle 6 equipped with material to be dried, the drying vehicle 6 after releasing corresponding drying simultaneously and cooling down；Constant temperature drying zone pairIn forward and antiport alternately, the circulating fan 18 of other elementary section also can synchronize just carrying out the circulating fan 18 answeredTo and antiport.
When the present invention works, motor 11 drives the rotation of head sprocket, the motion rotating drive driven sprocket 14 of head sprocket,Driven sprocket 14 drives the motion of chain 13, and chain 13 is for linear motion in pedestal 1, and drying vehicle 6 is in the thrust of push rod 7Under for linear motion along Crane Rail 19, steam enters from steam inlet pipe 30, 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 recordsFolding, steam becomes dry steam after heater 17, the folding of the plunger valve 4 21 by being connected with heater 17Degree controls the steam flow of input in drying chamber, and steam flow is the biggest, and the temperature in elementary section heats up the fastest, and temperature is moreHeight, Windscreen Fan 16 will be divided into 4 elementary sections in drying chamber, is followed successively by heating zone, the district that is rapidly heated, constant temperature at a slow speed from front to backDistrict and room temperature cooling zone, steam blows under the effect of circulating fan 18 from top to bottom, meanwhile, under the effect of split-wind plate 20, heatEdema caused by disorder of QI becomes left and right two-way to flow from top to bottom, and now, turning to of circulating fan 18 is designated as rotating forward, through following of increasing from top to bottomBehind ring air port 15, circulating air opening 15 is the biggest, and throughput is the biggest, and steam flows in circulation air path 10 from lower to upper, and steam is by dividingAerofoil 20 enters in internal box 8, and the continuous Circulation of steam is in fruit and vegerable；When changing circulating fan 18 rotation direction, in circulationUnder the effect of blower fan 18, the steam in internal box 8 flows from lower to upper, and steam sequentially passes through heater 17 and split-wind plate 20 flowsTo circulation air path 10, flowing downward, be again introduced in internal box 8 along circulating air opening 15, the continuous Circulation of steam is in fruitVegetables；Circulating fan 18 can be controlled at a slow speed in heating zone, be rapidly heated district and room temperature cooling zone rotate forward or rotating, under flat-temperature zoneCorresponding circulating fan 18 is rotating, makes fruit and vegetable drying degree uniform；The dampness produced in drying course is arranged through humid airGo out device 5 and discharge drying chamber；When the present invention works, drying chamber is closed, and reduces thermal losses, makes fruit and vegerable by circulating of gasUniform drying, realizes multi-temperature section and dries, improve drying effect, the quality better after fruit and vegetable drying, can answer in same drying chamberIn the dry work of the fruit and vegerable such as Fructus Jujubae, Lentinus Edodes, Fructus Lycii, Fructus Capsici and Auricularia.
Embodiment 2
Being with the difference of method in embodiment 1, switchable door 9 is normally opened, and drive mechanism progressively pushes equipped with to be driedThe drying vehicle 6 of material, the drying vehicle 6 after releasing corresponding drying simultaneously and cooling down.
Embodiment 3
A kind of tunnel type fruit and vegetable drying room as shown in figure 15, is with the difference of embodiment 1, circulating air opening 15 is in rectangularShape.
The invention is not limited in above-described embodiment, it should be noted that the humid air discharger 5 that each unit section is correspondingRespectively humid air can be discharged, it is possible to discharging drying chamber after collecting, the steam discharge assembly 23 being connected with heater 17 can be respectively by manyRemaining steam is discharged, it is possible to discharge drying chamber after being collected by excess steam, is not limited to use steam pipe 22 additionally, realize fruit and vegetable dryingFruit and vegerable are dried toward inputting dried steam in drying chamber by road, it is possible to use fruit and vegerable are entered by other such as heat conduction oil circuit etc.Row is dried, and Windscreen Fan can also completely or partially be isolated and be replaced, isolating door can also be arranged heat, damping fillsPut, such as steam pipe coil, electrothermal tube, humidifying spraying nozzle etc.；On the basis of technical scheme disclosed by the invention, the technology of this areaPersonnel are according to disclosed technology contents, it is not necessary to some of which technical characteristic just can be made by performing creative labourReplacing and deformation, these are replaced and deformation is all in scope.