CN104266462A - Agricultural product processing dryer - Google Patents
Agricultural product processing dryer Download PDFInfo
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- CN104266462A CN104266462A CN201410542195.2A CN201410542195A CN104266462A CN 104266462 A CN104266462 A CN 104266462A CN 201410542195 A CN201410542195 A CN 201410542195A CN 104266462 A CN104266462 A CN 104266462A
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- 238000012545 processing Methods 0.000 title claims abstract description 27
- 238000009826 distribution Methods 0.000 claims abstract description 87
- 239000000463 material Substances 0.000 claims abstract description 87
- 238000001035 drying Methods 0.000 claims abstract description 86
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims description 21
- 238000005485 electric heating Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010923 batch production Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 238000009827 uniform distribution Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010981 drying operation Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of agricultural product processing, and relates to an agricultural product processing dryer, in particular to a multi-layer rotating disc pulsing gas jet impact dryer. The agricultural product processing dryer comprises a case shell and traveling wheels, wherein a hollow shell-shaped drying chamber, an air flow distribution circulation system and a material drying system are arranged in the case shell; the air flow distribution circulation system comprises two groups of centrifugal fans, namely a left centrifugal fan and a right centrifugal fan, left and right groups of air inlet pipes, namely a left air inlet pipe group and a right air inlet pipe group, and an air return pipe group; the material drying system structurally comprises a motor, a transmission mechanism, a central shaft, a circular rack group and a connecting bearing. According to the dryer, the manufacturing cost and the operation energy consumption are reduced the dried product quality and the drying uniformity are guaranteed while the drying rate and the material processing capacity are improved.
Description
Technical field
The invention belongs to technical field of agricultural product process, relate to a kind of processing of farm products drying machine, especially a kind of Multi-layer rotary top pulsed gas jet impact drier.
Background technology
Gas jet impact dry technology to have the heated air of certain pressure, and the nozzle through definite shape sprays, and directly impact a kind of dry technology on material surface.From boundary layer theory, because the flow velocity of gas jet is higher, very thin boundary layer can be formed between bulk gas stream and material surface when closely impacting material, thus there is higher velocity gradient and thermograde, can material be made in the short period of time to reach or close to impact air-flow temperature and take away rapidly the moisture of evaporation, therefore the convection transfer rate of gas jet impact drying is several times and even an order of magnitude of conventional hot blast drying, has the technical characterstic that efficiency is high, energy consumption is low, be easy to controls local heat transfer.
Impulse dryer refers to the dry technology of alternately change Drying Technology Parameter according to certain rules.According to the difference changing drying parameter regularly, impulse dryer can be divided into that gas is dry, temperature fluctuation is dry, energy pulse is dry and pressure fluctuation dry etc.Wherein gas drying refers to a kind of impulse dryer mode of the air-flow velocity periodically alternately change according to certain rules impacting material surface.Gas drying is by constantly changing the impact air-flow flow velocity acting on material surface, destroy the poised state of material top layer water vapor pressure and external environment water vapor pressure in dry run, increase the pressure reduction between material top layer water vapor pressure and external environment steam partial pressure, thus Accelerative mass transfer, improve dry run volume drying speed.
Chinese patent ZL110003774.6 discloses a kind of pulsed gas jet impact drier, bin in hothouse adopts parallelogram lindage design, time dry, the rectangle charging tray be placed on bin does uniform translation gyration around bin axle, the nozzle of high-temperature gas through hothouse top sprays vertically downward, the gas shock that material is subject to when charging tray goes to the top is maximum, reduce gradually subsequently, the gas shock that material is subject to when charging tray goes to bottom is minimum, subtract again large subsequently gradually, realize the impulse dryer to material thus.But the weak point of this design is: for realizing above-mentioned pulsation function, hothouse top lance gas-flow radiation area need much larger than charging tray area, nozzle effective rate of utilization is low, energy consumption and processing cost high, and nozzle gas flow swept area constrains charging tray size and material useful load greatly, the dry process requirements of batch production agricultural product material in enormous quantities cannot be met; The rotation material frame structure realizing pulsation function is complicated, and manufacturing cost is higher, and charging tray joist to charging tray spacing and hypopexy, if dry time bin rotating speed too high or charging tray fail, when being placed on charging tray joist middle, charging tray easily occurs and fall phenomenon.
Application number be 201310730719.6 Chinese patent disclose a kind of rotary disk type air jet impact drying machine, along revolving transformed material shaft axially uniform some layers of circular bin in hothouse, carry charging tray when revolving transformed material shaft rotation to rotate in horizontal plane, time dry, impact air-flow enters hothouse by horizontal-jet on the left of bar shaped jet-impingement mouth self-desiccation machine, parallel skim over charging tray after enter air return pipeline by the return air inlet on right side, when charging tray rotates the highest to dry tenacity during left side bar shaped jet-impingement mouth place, rotate minimum to dry tenacity during return air inlet place, right side, realize the intermittent drying process of " drying-tempering-drying-tempering " thus.The weak point of this design is: impact air-flow flows to parallel with charging tray plane, air-flow is only parallel skim over material surface, material is failed to be subject to bulk gas stream and is effectively impacted, rate of heat transfer and hot blast effective rate of utilization low, the technical advantage of gas jet impact high heat transfer coefficient cannot be realized; Air intake on the left of hothouse, the design of right side return air makes " tempering " time be far longer than " drying " time, more vast scale detuning phenomena is more serious for charging tray size, and along charging tray edge to charging tray center, the material of zones of different is heated inequality, intermittently drying degree is also uneven, effect the closer to charging tray center " drying-tempering-drying-tempering " is more weak, obvious uneven drying phenomenon is there will be in dry run, charging tray size larger uneven drying degree is more obvious, and this just constrains the material disposal ability of this drying machine and the uniformity of product quality.
Summary of the invention
The object of the invention is to overcome existing pulsed gas jet impact drier processing cost high, be unfavorable for drying operation in enormous quantities and rotary disk type air jet impact drying machine hot blast utilization rate and rate of heat transfer is low, the technical problem of the unequal existence of dry materials, there is provided a kind of rational in infrastructure, economical and practical, can while raising rate of drying and material treating capacity, reduce manufacturing cost and operation energy consumption, ensure dry products quality and dry uniformity, meet the processing of farm products drying machine of the job requirements of batch production agricultural product material drying in enormous quantities processing.
The invention discloses a kind of processing of farm products drying machine, comprise cabinet housing 23, road wheel 6, it is characterized in that the hothouse 13 being provided with hollow shell shape in described cabinet housing 23, be also provided with the distribution of air flow circulatory system, material drying system;
The described distribution of air flow circulatory system comprises two groups of centrifugal blowers and left centrifugal blower 20 and right centrifugal blower 18, two groups left, right blast pipe group and left blast pipe group 16 and right blast pipe group 15, backwind tube group, a described left side, right centrifugal fan structure is identical, be equipped with spiral case air outlet 17, return air inlet 30, a described left side, right centrifugal blower is installed on below hothouse 13, the lower end air inlet 44 of blast pipe group that wherein arbitrary group of centrifugal blower volute air outlet 17 is arranged with opposite position is connected, wherein the return air inlet 30 of arbitrary group of centrifugal blower is connected with backwind tube group lower end, left, right blast pipe group is fixed on the wall of hothouse 13 shell left and right, backwind tube group is fixed on hothouse 13 rear wall, backwind tube group upper end is connected with in hothouse 13 by return air hole 33,
A described left side, right blast pipe group structure is identical, symmetrical installation, its structure comprises air intake heating clamber 29, air inlet main pipe 14, circular distribution of air flow group, bar shaped distribution of air flow group, terminals protective cover 43, electric heating tube 42 and ventilation exhaust duct 4, described air intake heating clamber 29 is connected with air inlet main pipe 14, described terminals protective cover 43 is located at air intake heating clamber 29 side and is connected with air intake heating clamber 29, described electric heating tube 42 is installed in terminals protective cover 43, described air intake heating clamber 29 is provided with ventilation exhaust duct 4, air inlet 44, described air inlet 44 communicates with the spiral case air outlet 17 on centrifugal blower,
Described circular distribution of air flow group comprises circular gas distribution chamber 26, the multiple round nozzles 27 be located on circular gas distribution chamber 26, described bar shaped distribution of air flow group comprises bar shaped gas distribution chamber 22, the bar nozzle 21 be located on bar shaped gas distribution chamber 22, circular gas distribution chamber 26 and bar shaped gas distribution chamber 22 alternate intervals uniform vertical are installed in air inlet main pipe 14, and described circular gas distribution chamber 26 is all connected with air inlet main pipe 14 with bar shaped gas distribution chamber 22;
Described backwind tube group comprises return air chamber 38, return air straight length 32 and return air bend loss 31, described return air chamber 38, return air straight length 32, return air bend loss 31 are all connected, return air chamber 38 is provided with return air hole 33, ventilation exhaust duct 4, described return air chamber 38 is connected with hothouse 13 by return air hole 33, is connected with ambient atmosphere by ventilation exhaust duct 4;
Described material drying system structure comprises motor 19, transmission mechanism, central shaft 28, circular bin group 10, connection bearing 40, the upper and lower side of described central shaft 28 is rotationally connected by connection bearing 40 with hothouse 13 top and bottom respectively, circular bin group 10 comprises multiple circular bin 51, multiple described circular bin 51 centrally axle 28 is axially equally spaced, and central shaft 28 passes the bin cylindrical central sleeve 49 of each circular bin and is fixedly connected with; The structure of described circular bin comprises charging tray 50, material disc gripper shoe 46, material disc back-up ring 48, material disc baffle plate 45, floor 47, the material gripper shoe 46 of circular bin 51 upper surface coplanar horizontal is placed with charging tray 50, material gripper shoe 46 one end is connected on bin cylindrical central sleeve 49, the other end is connected on material disc back-up ring 48, material disc baffle plate 45 is vertically connected on material disc back-up ring 48, spacing for charging tray 50.
Described processing of farm products drying machine is preferably also provided with matching used temperature and humidity control system;
Described temperature and humidity control system comprises main control system case, touch-screen, signals collecting and output control module, fan frequency converter, rotating disk frequency converter, temperature, humidity sensor and magnetic valve, described main control system case is independently arranged on drying machine 13 side, touch-screen is inlaid in the front panel of main control system case, signals collecting and output control module are fixed on the sidewall of main control system case inside, fan frequency converter, rotating disk frequency converter is fixed on below main control system case, Temperature Humidity Sensor is fixed in hothouse 13 sensor mounting pipe 34, sensor mounting pipe 34 is positioned at hothouse back cover top and is uniformly distributed, described magnetic valve is installed on ventilation exhaust duct 4 place,
Described touch-screen and main control system connect centrifugal blower frequency converter by communication bus, rotating disk frequency converter, magnetic valve, signals collecting output control module, the rotating speed of fan frequency converter control break centrifugal blower thus the air velocity of control break jet-impingement mouth, rotating disk Frequency Converter Control changes the rotating speed of rotary tray motor 19 thus the rotating speed of control break material drying system, temperature, humidity sensor is for obtaining the temperature and humidity of hothouse inside, and be connected with the input of output control module with signals collecting, the output of signals collecting and output control module is connected to electric heating tube 42, the electromagnetic valve switch of ventilation exhaust duct 4, the information of collection is uploaded to main control system by signals collecting and output control module, and perform the control instruction that main control system and touch-screen send.
Described charging tray 50 removably connects with circular bin 51, and the bond breaker disk area form according to circular bin can be divided into fan-shaped or semicircle, and charging tray 50 base plate is made up of the corrosion resistant plate of punching of gathering.Its outer back-up ring diameter is 490 ~ 2490mm, and inner shield ring is the circular arc that can match with bin cylindrical central sleeve, and charging tray base plate is made up of the corrosion resistant plate of punching of gathering, and punching hole diameter is 3 ~ 10mm, pitch of holes 3 ~ 10mm, and base plate thickness is 0.5 ~ 2mm.
In described circular distribution of air flow group, round nozzle 27 is evenly distributed on the below of circular gas distribution chamber 26, bar nozzle 21 in described bar shaped distribution of air flow group is arranged on below bar shaped gas distribution chamber 22, magnitude setting is 1 ~ 5, the blast velocity control scope of round nozzle 27 is 1 ~ 18m/s, the blast velocity control scope of bar nozzle 21 is 1 ~ 20m/s, it is described that to be in the ratio that the circular gas distribution chamber 26 in two, left and right that same level direction arranges or the projected area of bar shaped gas distribution chamber 22 on the circular bin of the individual layer being positioned at below account for the circular bin area of below individual layer be 1/8 ~ 1/4, the position relationship of the circular bin of individual layer and its lower circular bin, relate to impulse dryer effect relevant, the position relationship limited by the present invention is installed, can while raising rate of drying and material treating capacity, reduce manufacturing cost and operation energy consumption, ensure dry products quality and dry uniformity, in practical operation, the drying of pulsation type gas jet is carried out to material, its drying effect is good and save complete machine operating cost.
The concrete shape of described round nozzle 27 can according to actual needs, and its cross sectional shape does circular or square, or be polygon.Diameter can be 10 ~ 50mm.
Return air hole 33 place of described return air chamber 38 is provided with return air hole screen pack 12, and return air hole screen pack 12 is fixed in hothouse housing 35.
Transmission mechanism in described material drying system structure, its structure comprises hinge wheel 36, minor sprocket 37, decelerator, described rotary tray motor 19 is coaxially arranged on decelerator lower end, decelerator is fixed on bottom hothouse housing 35, reducer output shaft is connected with hinge wheel 36, hinge wheel 36, minor sprocket 37 are by chain drive, and minor sprocket 37 is affixed with the lower end of central shaft 28, realizes rotary drive.
In described circular bin group, circular bin centrally axle 28 axially can be evenly arranged 5 ~ 10 layers, and the outside diameter of circular bin is 500 ~ 2500mm.
Described cabinet housing 23 structure comprises front shroud 5, door 2, left cover 8, right cover plate 1, lamina tecti 9, back shroud 39, and door 2 is provided with window 3, is filled with insulation material in the described hothouse hothouse housing 35 of 13 1 weeks.
In above-mentioned temperature and humidity control system, system, based on the temperature information of temperature sensor Real-time Collection, by controlling heat exchange blast pipe electromagnetic valve switch and electric heating tube, completes the accurate control of dry indoor temperature; System, based on the humidity information of humidity sensor Real-time Collection, by controlling the switch of ventilation exhaust duct place magnetic valve, completes the regulation and control of hothouse humidity.
In above-mentioned temperature and humidity control system, in conjunction with multi stage drying technology, can carry out alternating temperature humidity drying stage by stage in dry run, the described humidity of alternating temperature stage by stage drying refers to that temperature and humidity control system automatically performs different humiture drying modes according to the difference of drying stage in dry run;
In above-mentioned material drying system, rotary speed scope is 0 ~ 10rmp, the rotating speed of rotating disk can stepless speed regulation, in conjunction with multi stage drying technology, can realize becoming rotary speed drying stage by stage in dry run, the drying of the described rotary speed of change stage by stage refers to that material drying system automatically performs different rotary speeds according to the difference of drying stage in dry run.
The monitoring temperature scope of described control system is 20 ~ 120 DEG C, and precision is 1 DEG C, and humidity control scope is 0 ~ 100%RH, error 5%RH.
After whole dryer system powers on, utilize temperature and humidity control system that drying parameter (phases-time, phase temperature, step humidity, stage wind speed, stage rotating speed) is stage by stage set; Material to be dried is loaded in charging tray; After touch screen interface start up system, system runs centrifugal blower, material drying system, warm and humid control automatically according to the parameter arranged; System automatically switches the stage according to phases-time, performs each drying stage successively according to stage drying parameter.
After centrifugal blower runs, to the pneumatic convey of pressurization be passed through extremely on a left side by volute of blower air outlet, in right blast pipe group gas flow loop, and place heats air-flow at electric heating tube, possesses the air-flow of uniform temperature and pressure by a left side, after the uniform distribution of right blast pipe group, by its arrange bar nozzle or round nozzle by jet-impingement in hothouse material surface, complete after exchanging with the caloic of material, under the effect of backwind tube group negative loop pressure, air-flow by backwind tube group through loop return air, be inhaled into centrifugal blower air entry but return air inlet 30, complete thermal current cyclic process, the different capacity that temperature and humidity control system controls electric heating tube device based on the temperature information that Temperature Humidity Sensor gathers exports, and complete the accurate control of hothouse temperature, wherein system temperature monitoring range is 20 ~ 120 DEG C, precision 1 DEG C.
Drying machine provided by the invention is a kind of Multi-layer rotary top pulsed gas jet impact drier, is suitable for the drying of the agricultural production materials such as red date.Compared with prior art, advantage of the present invention: overcome existing pulsed gas jet impact drier processing cost high, be unfavorable for that drying operation in enormous quantities and rotary disk type air jet impact drying machine hot blast utilization rate and rate of heat transfer are low, the technical problem of the unequal existence of dry materials, there is provided a kind of rational in infrastructure, economical and practical, can while raising rate of drying and material treating capacity, reduce manufacturing cost and operation energy consumption, ensure dry products quality and dry uniformity, meet the processing of farm products drying machine of the job requirements of batch production agricultural product material drying in enormous quantities processing.
Accompanying drawing explanation
Fig. 1 is the structural front view of the embodiment of the present invention.
Fig. 2 is that master of the present invention looks complete section structural representation.
Fig. 3 is the structural representation that complete section is looked on the present invention left side.
Fig. 4 is A-A face sectional view in Fig. 1.
Fig. 5 is the backsight structural representation of Fig. 2 of the present invention.
Fig. 6 be Fig. 2 of the present invention look up structural representation.
Fig. 7 is the plan structure schematic diagram of Fig. 2 of the present invention.
Fig. 8 is the perspective view of the blast pipe group of Fig. 2 of the present invention.
Fig. 9 is the structural front view of the blast pipe group of Fig. 8 of the present invention.
Figure 10 is the structure side view of the blast pipe group of Fig. 9 of the present invention.
Figure 11 is the structure top view of the blast pipe group of Fig. 9 of the present invention.
Figure 12 is the structure upward view of the blast pipe group of Fig. 9 of the present invention.
Figure 13 is the structural representation of the air inlet main pipe in Fig. 8 of the present invention.
Figure 14 is the structural representation of the circular gas distribution chamber in Fig. 8 of the present invention.
Figure 15 is the structural perspective of the circular bin group of Fig. 2 of the present invention.
Figure 16 is the structural front view of the circular bin group of Figure 15 of the present invention.
Figure 17 is the structure top view of the circular bin of Figure 15 of the present invention.
Figure 18 is the structural perspective of the backwind tube group of Fig. 2 of the present invention.
Figure 19 is the structural front view of the backwind tube group of Figure 18 of the present invention.
Figure 20 is the structure right view of the backwind tube group of Figure 19 of the present invention.
Figure 21 is the structure top view of the backwind tube group of Figure 19 of the present invention.
Figure 22 is the structural perspective of the centrifugal blower group of Fig. 2 of the present invention.
Figure 23 is the structural front view of the centrifugal blower group of Figure 22 of the present invention.
Figure 24 is the structure top view of the centrifugal blower group of Figure 22 of the present invention.
Figure 25 is the structure side view of the centrifugal blower group of Figure 22 of the present invention.
Figure 26 be the hothouse housing of Fig. 2 of the present invention structural representation.
Figure 27 is the structural representation of charging tray of the present invention.
Figure 28 is the operation principle structural representation of temperature and humidity control system of the present invention.
Shown in figure, 1 is right cover plate, 2 is door, 3 is window, 4 is ventilation exhaust duct, 5 is front shroud, 6 is road wheel, 7 is door handle, 8 is left cover, 9 is lamina tecti, 10 is circular bin group, 11 is folding, 12 are, 13 is hothouse, 14 is air inlet main pipe, 15 is right blast pipe group, 16 is left blast pipe group, 17 is spiral case air outlet, 18 is right centrifugal blower, 19 is motor, 20 is left centrifugal blower, 21 is bar nozzle, 22 is bar shaped gas distribution chamber, 23 is cabinet housing, 25 is door lock, 26 is circular gas distribution chamber, 27 is round nozzle, axle centered by 28, 29 is air intake heating clamber, 30 is return air inlet, 31 is return air bend loss, 32 is return air straight length, 33 is return air hole, 34 is sensor mounting pipe, 35 is hothouse housing, 36 is hinge wheel, 37 is minor sprocket, 38 is return air chamber, 39 is back shroud, 40 is connection bearing, 41 is hothouse inner casing lamina tecti, 42 is electric heating tube, 43 is terminals protective cover, 44 is air inlet, 45 is material disc baffle plate, 46 is material disc gripper shoe, 47 is floor, 48 is material disc back-up ring, 49 is sleeve, 50 is charging tray, 51 is circular bin.
Detailed description of the invention
Embodiment 1:
With reference to Fig. 1-Figure 27, for the structural representation of the embodiment of the present invention, a kind of processing of farm products drying machine, comprises cabinet housing 23, road wheel 6, be provided with the hothouse 13 of hollow shell shape in described cabinet housing 23, be also provided with the distribution of air flow circulatory system, material drying system;
The described distribution of air flow circulatory system comprises two groups of centrifugal blowers and left centrifugal blower 20 and right centrifugal blower 18, two groups left, right blast pipe group and left blast pipe group 16 and right blast pipe group 15, backwind tube group, a described left side, right centrifugal fan structure is identical, be equipped with spiral case air outlet 17, return air inlet 30, a described left side, right centrifugal blower is installed on below hothouse 13, the lower end air inlet 44 of blast pipe group that wherein arbitrary group of centrifugal blower volute air outlet 17 is arranged with opposite position is connected, wherein the return air inlet 30 of arbitrary group of centrifugal blower is connected with backwind tube group lower end, left, right blast pipe group is fixed on the wall of hothouse 13 shell left and right, backwind tube group is fixed on hothouse 13 rear wall, backwind tube group upper end is connected with in hothouse 13 by return air hole 33,
A described left side, right blast pipe group structure is identical, symmetrical installation, its structure comprises air intake heating clamber 29, air inlet main pipe 14, circular distribution of air flow group, bar shaped distribution of air flow group, terminals protective cover 43, electric heating tube 42 and ventilation exhaust duct 4, described air intake heating clamber 29 is connected with air inlet main pipe 14, described terminals protective cover 43 is located at air intake heating clamber 29 side and is connected with air intake heating clamber 29, described electric heating tube 42 is installed in terminals protective cover 43, described air intake heating clamber 29 is provided with ventilation exhaust duct 4, air inlet 44, described air inlet 44 communicates with the spiral case air outlet 17 on centrifugal blower,
Described circular distribution of air flow group comprises circular gas distribution chamber 26, the multiple round nozzles 27 be located on circular gas distribution chamber 26, described bar shaped distribution of air flow group comprises bar shaped gas distribution chamber 22, the bar nozzle 21 be located on bar shaped gas distribution chamber 22, circular gas distribution chamber 26 and bar shaped gas distribution chamber 22 alternate intervals uniform vertical are installed in air inlet main pipe 14, and described circular gas distribution chamber 26 is all connected with air inlet main pipe 14 with bar shaped gas distribution chamber 22; In described circular distribution of air flow group, round nozzle 27 is evenly distributed on the below of circular gas distribution chamber 26, bar nozzle 21 in described bar shaped distribution of air flow group is one, be arranged on the center position below bar shaped gas distribution chamber 22, the blast velocity control scope of round nozzle 27 is 10m/s, and the blast velocity control scope of bar nozzle 21 is 10m/s.
Described backwind tube group comprises return air chamber 38, return air straight length 32 and return air bend loss 31, described return air chamber 38, return air straight length 32, return air bend loss 31 are all connected, return air chamber 38 is provided with return air hole 33, ventilation exhaust duct 4, described return air chamber 38 is connected with hothouse 13 by return air hole 33, is connected with ambient atmosphere by ventilation exhaust duct 4;
Described material drying system structure comprises motor 19, transmission mechanism, central shaft 28, circular bin group 10, connection bearing 40, the upper and lower side of described central shaft 28 is rotationally connected by connection bearing 40 with hothouse 13 top and bottom respectively, circular bin group 10 comprises multiple circular bin, multiple described circular bin centrally axle 28 is axially equally spaced, and central shaft 28 passes the bin cylindrical central sleeve 49 of each circular bin and is fixedly connected with; The structure of described circular bin comprises charging tray 50, material disc gripper shoe 46, material disc back-up ring 48, material disc baffle plate 45, floor 47, the material gripper shoe 46 of circular bin upper surface coplanar horizontal is placed with charging tray 50, material gripper shoe 46 one end is connected on bin cylindrical central sleeve 49, the other end is connected on material disc back-up ring 48, material disc baffle plate 45 is vertically connected on material disc back-up ring 48, spacing for charging tray 50.
In described circular bin group, circular bin centrally axle 28 axially can be evenly arranged 5 layers, and the outside diameter of circular bin is 500mm.
The upper and lower side of central shaft is rotationally connected with the bearing being positioned at hothouse inner casing and hothouse cover plate, and bearing is fixed in bearing block, and bearing block is arranged in hothouse inner casing bottom and hothouse inner casing lamina tecti.Circular bin is equally spaced along the axis of revolving transformed material shaft in hothouse, central shaft is through the bin cylindrical central sleeve of each circular bin, and fix with it at the bin cylindrical central sleeve place of each circular bin, reach the object supporting bin and rotary drive, charging tray is placed in the bond breaker disk area on circular bin.Described charging tray 50, be semicircle according to the bond breaker disk area form of circular bin, charging tray 50 base plate is made up of the corrosion resistant plate of punching of gathering.
After centrifugal blower runs, to the pneumatic convey of pressurization be passed through extremely on a left side by volute of blower air outlet, in right blast pipe group gas flow loop, and place heats air-flow at electric heating tube, possesses the air-flow of uniform temperature and pressure by a left side, after the uniform distribution of right blast pipe group, by its arrange bar nozzle or round nozzle by jet-impingement in hothouse material surface, complete after exchanging with the caloic of material, under the effect of backwind tube group negative loop pressure, air-flow by backwind tube group through loop return air, be inhaled into centrifugal blower air entry but return air inlet 30, complete thermal current cyclic process.
Embodiment 2:
With reference to Figure 28, compared with embodiment 1, the difference of the present embodiment is that described drying machine is also provided with matching used temperature and humidity control system;
Described temperature and humidity control system comprises main control system case, touch-screen, signals collecting and output control module, fan frequency converter, rotating disk frequency converter, temperature, humidity sensor and magnetic valve, described main control system case is independently arranged on drying machine 13 side, touch-screen is inlaid in the front panel of main control system case, signals collecting and output control module are fixed on the sidewall of main control system case inside, fan frequency converter, rotating disk frequency converter is fixed on below main control system case, Temperature Humidity Sensor is fixed in hothouse 13 sensor mounting pipe 34, sensor mounting pipe 34 is positioned at hothouse back cover top and is uniformly distributed, described magnetic valve is installed on ventilation exhaust duct 4 place,
Described touch-screen and main control system connect centrifugal blower frequency converter by communication bus, rotating disk frequency converter, magnetic valve, signals collecting output control module, the rotating speed of fan frequency converter control break centrifugal blower thus the air velocity of control break jet-impingement mouth, rotating disk Frequency Converter Control changes the rotating speed of rotary tray motor 19 thus the rotating speed of control break material drying system, temperature, humidity sensor is for obtaining the temperature and humidity of hothouse inside, and be connected with the input of output control module with signals collecting, the output of signals collecting and output control module is connected to electric heating tube 42, the electromagnetic valve switch of ventilation exhaust duct 4, the information of collection is uploaded to main control system by signals collecting and output control module, and perform the control instruction that main control system and touch-screen send.
In above-mentioned temperature and humidity control system, system, based on the temperature information of temperature sensor Real-time Collection, by controlling heat exchange blast pipe electromagnetic valve switch and electric heating tube, completes the accurate control of dry indoor temperature; System, based on the humidity information of humidity sensor Real-time Collection, by controlling the switch of ventilation exhaust duct magnetic valve, completes the regulation and control of hothouse humidity.
Material to be dried is loaded in charging tray, after centrifugal blower runs, to the pneumatic convey of pressurization be passed through extremely on a left side by volute of blower air outlet, in right blast pipe group gas flow loop, and place heats air-flow at electric heating tube, possesses the air-flow of uniform temperature and pressure by a left side, after the uniform distribution of right blast pipe group, by its arrange bar nozzle or round nozzle by jet-impingement in hothouse material surface, complete after exchanging with the caloic of material, under the effect of backwind tube group negative loop pressure, air-flow by backwind tube group through loop return air, be inhaled into centrifugal blower air entry but return air inlet 30, complete thermal current cyclic process, the different capacity that temperature and humidity control system controls electric heating tube device based on the temperature information that Temperature Humidity Sensor gathers exports, and complete the accurate control of hothouse temperature, wherein system temperature monitoring range is 0 ~ 150 DEG C, precision 1 DEG C.
After whole dryer system powers on, utilize temperature and humidity control system that drying parameter (phases-time, phase temperature, step humidity, stage wind speed, stage rotating speed) is stage by stage set; After touch screen interface start up system, system runs centrifugal blower, material drying system, warm and humid control automatically according to the parameter arranged; System automatically switches the stage according to phases-time, performs each drying stage successively according to stage drying parameter.
Embodiment 3: compared with embodiment 1, the difference of the present embodiment is that described charging tray 50 removably connects with circular bin 51, bond breaker disk area form according to circular bin can be divided into fan-shaped or semicircle, and charging tray 50 base plate is made up of the corrosion resistant plate of punching of gathering.
Embodiment 4: compared with embodiment 2, the difference of the present embodiment is that described charging tray 50 removably connects with circular bin 51, bond breaker disk area form according to circular bin can be divided into fan-shaped or semicircle, and charging tray 50 base plate is made up of the corrosion resistant plate of punching of gathering.
Embodiment 5:
Compared with embodiment 1, the difference of the present embodiment is that return air hole 33 place of described return air chamber 38 is provided with return air hole screen pack 12, and return air hole screen pack 12 is fixed in hothouse housing 35.
Embodiment 6:
Compared with embodiment 2, the difference of the present embodiment is that return air hole 33 place of described return air chamber 38 is provided with return air hole screen pack 12, and return air hole screen pack 12 is fixed in hothouse housing 35.
Embodiment 7:
Compared with embodiment 3, the difference of the present embodiment is that return air hole 33 place of described return air chamber 38 is provided with return air hole screen pack 12, and return air hole screen pack 12 is fixed in hothouse housing 35.
Embodiment 8:
Compared with embodiment 1, the difference of the present embodiment is the transmission mechanism in described material drying system structure, its structure comprises hinge wheel 36, minor sprocket 37, decelerator, described rotary tray motor 19 is coaxially arranged on decelerator lower end, decelerator is fixed on bottom hothouse housing 35, and reducer output shaft is connected with hinge wheel 36, and hinge wheel 36, minor sprocket 37 pass through chain drive, minor sprocket 37 is affixed with the lower end of central shaft 28, realizes rotary drive.
Embodiment 9:
Compared with embodiment 2, the difference of the present embodiment is the transmission mechanism in described material drying system structure, its structure comprises hinge wheel 36, minor sprocket 37, decelerator, described rotary tray motor 19 is coaxially arranged on decelerator lower end, decelerator is fixed on bottom hothouse housing 35, and reducer output shaft is connected with hinge wheel 36, and hinge wheel 36, minor sprocket 37 pass through chain drive, minor sprocket 37 is affixed with the lower end of central shaft 28, realizes rotary drive.
Embodiment 10:
Compared with embodiment 7, the difference of the present embodiment is the transmission mechanism in described material drying system structure, its structure comprises hinge wheel 36, minor sprocket 37, decelerator, described rotary tray motor 19 is coaxially arranged on decelerator lower end, decelerator is fixed on bottom hothouse housing 35, and reducer output shaft is connected with hinge wheel 36, and hinge wheel 36, minor sprocket 37 pass through chain drive, minor sprocket 37 is affixed with the lower end of central shaft 28, realizes rotary drive.
Embodiment 11:
Compared with embodiment 1 or 2, the difference of the present embodiment is in described circular bin group, and circular bin centrally axle 28 axially can be evenly arranged 8 layers, and the outside diameter of circular bin is 2000mm.
Embodiment 12:
Compared with embodiment 1 or 2, the difference of the present embodiment is in described circular bin group, and circular bin centrally axle 28 axially can be evenly arranged 10 layers, and the outside diameter of circular bin is 2500mm.
Embodiment 13:
Compared with embodiment 1 or 2, the difference of the present embodiment is that described cabinet housing 23 structure comprises front shroud 5, door 2, left cover 8, right cover plate 1, lamina tecti 9, back shroud 39, door 2 is provided with window 3, is filled with insulation material in the described hothouse hothouse housing 35 of 13 1 weeks.
Embodiment 14:
Compared with embodiment 10, the difference of the present embodiment is that described cabinet housing 23 structure comprises front shroud 5, door 2, left cover 8, right cover plate 1, lamina tecti 9, back shroud 39, door 2 is provided with window 3, is filled with insulation material in the described hothouse hothouse housing 35 of 13 1 weeks.
Embodiment 15:
Compared with embodiment 1, the difference of the present embodiment is that in described circular distribution of air flow group, round nozzle 27 is evenly distributed on the below of circular gas distribution chamber 26, bar nozzle 21 in described bar shaped distribution of air flow group is arranged on below bar shaped gas distribution chamber 22, magnitude setting is 3, the blast velocity control scope of round nozzle 27 is 1m/s, the blast velocity control scope of bar nozzle 21 is 1m/s, it is described that to be in the ratio that the circular gas distribution chamber 26 in two, left and right that same level direction arranges or the projected area of bar shaped gas distribution chamber 22 on the circular bin of the individual layer being positioned at below account for the circular bin area of below individual layer be 1/8.
Embodiment 16:
Compared with embodiment 1, the difference of the present embodiment is that in described circular distribution of air flow group, round nozzle 27 is evenly distributed on the below of circular gas distribution chamber 26, bar nozzle 21 in described bar shaped distribution of air flow group is arranged on below bar shaped gas distribution chamber 22, magnitude setting is 5, the blast velocity control scope of round nozzle 27 is 18m/s, the blast velocity control scope of bar nozzle 21 is 20m/s, it is described that to be in the ratio that the circular gas distribution chamber 26 in two, left and right that same level direction arranges or the projected area of bar shaped gas distribution chamber 22 on the circular bin of the individual layer being positioned at below account for the circular bin area of below individual layer be 1/4.
Embodiment 17:
Compared with embodiment 1, the difference of the present embodiment is that in described circular distribution of air flow group, round nozzle 27 is evenly distributed on the below of circular gas distribution chamber 26, bar nozzle 21 in described bar shaped distribution of air flow group is arranged on below bar shaped gas distribution chamber 22, magnitude setting is 2, the blast velocity control scope of round nozzle 27 is 5m/s, the blast velocity control scope of bar nozzle 21 is 15m/s, it is described that to be in the ratio that the circular gas distribution chamber 26 in two, left and right that same level direction arranges or the projected area of bar shaped gas distribution chamber 22 on the circular bin of the individual layer being positioned at below account for the circular bin area of below individual layer be 1/6.
Claims (10)
1. a processing of farm products drying machine, comprise cabinet housing (23), road wheel (6), it is characterized in that the hothouse (13) being provided with hollow shell shape in described cabinet housing (23), be also provided with the distribution of air flow circulatory system, material drying system;
The described distribution of air flow circulatory system comprises two groups of centrifugal blowers and left centrifugal blower (20) and right centrifugal blower (18), two groups left, right blast pipe group and left blast pipe group (16) and right blast pipe group (15), backwind tube group, a described left side, right centrifugal fan structure is identical, be equipped with spiral case air outlet (17), return air inlet (30), a described left side, right centrifugal blower is installed on hothouse (13) below, the lower end air inlet (44) of blast pipe group that wherein arbitrary group of centrifugal blower volute air outlet (17) is arranged with opposite position is connected, wherein the return air inlet (30) of arbitrary group of centrifugal blower is connected with backwind tube group lower end, left, right blast pipe group is fixed on the wall of hothouse (13) shell left and right, backwind tube group is fixed on hothouse (13) rear wall, backwind tube group upper end is connected with in hothouse (13) by return air hole (33),
A described left side, right blast pipe group structure is identical, symmetrical installation, its structure comprises air intake heating clamber (29), air inlet main pipe (14), circular distribution of air flow group, bar shaped distribution of air flow group, terminals protective cover (43), electric heating tube (42) and ventilation exhaust duct (4), described air intake heating clamber (29) is connected with air inlet main pipe (14), described terminals protective cover (43) is located at air intake heating clamber (29) side and is connected with air intake heating clamber (29), described electric heating tube (42) is installed in terminals protective cover (43), described air intake heating clamber (29) is provided with ventilation exhaust duct (4), air inlet (44), described air inlet (44) communicates with the spiral case air outlet (17) on centrifugal blower,
Described circular distribution of air flow group comprises circular gas distribution chamber (26), be located at the multiple round nozzles (27) on circular gas distribution chamber (26), described bar shaped distribution of air flow group comprises bar shaped gas distribution chamber (22), be located at the bar nozzle (21) on bar shaped gas distribution chamber (22), circular gas distribution chamber (26) and bar shaped gas distribution chamber (22) alternate intervals uniform vertical are installed in air inlet main pipe (14), described circular gas distribution chamber (26) is all connected with air inlet main pipe (14) with bar shaped gas distribution chamber (22),
Described backwind tube group comprises return air chamber (38), return air straight length (32) and return air bend loss (31), described return air chamber (38), return air straight length (32), return air bend loss (31) are all connected, return air chamber (38) is provided with return air hole (33), ventilation exhaust duct (4), described return air chamber (38) is connected with hothouse (13) by return air hole (33), is connected with ambient atmosphere by ventilation exhaust duct (4);
Described material drying system structure comprises motor (19), transmission mechanism, central shaft (28), circular bin group (10), connection bearing (40), the upper and lower side of described central shaft (28) is rotationally connected by connection bearing (40) with hothouse (13) top and bottom respectively, circular bin group (10) comprises multiple circular bin (51), multiple described circular bin (51) centrally axle (28) is axially equally spaced, central shaft (28) through each circular bin bin cylindrical central sleeve (49) and be fixedly connected with, the structure of described circular bin (51) comprises charging tray (50), material disc gripper shoe (46), material disc back-up ring (48), material disc baffle plate (450, floor (47), the material gripper shoe (46) of circular bin (51) upper surface coplanar horizontal is placed with charging tray (50), material gripper shoe (46) one end is connected on bin cylindrical central sleeve (49), the other end is connected on material disc back-up ring (48), material disc baffle plate (45) is vertically connected on material disc back-up ring (48), spacing for charging tray (50).
2. processing of farm products drying machine as claimed in claim 1, is characterized in that also being provided with matching used temperature and humidity control system;
Described temperature and humidity control system comprises main control system case, touch-screen, signals collecting and output control module, fan frequency converter, rotating disk frequency converter, Temperature Humidity Sensor and magnetic valve, described main control system case is independently arranged on drying machine (13) side, touch-screen is inlaid in the front panel of main control system case, signals collecting and output control module are fixed on the sidewall of main control system case inside, fan frequency converter, rotating disk frequency converter is fixed on below main control system case, Temperature Humidity Sensor is fixed in hothouse (13) sensor mounting pipe (34), sensor mounting pipe (34) is positioned at hothouse back cover top and is uniformly distributed, described magnetic valve is installed on ventilation exhaust duct (4) place,
Described touch-screen and main control system connect centrifugal blower frequency converter by communication bus, rotating disk frequency converter, magnetic valve, signals collecting output control module, the rotating speed of fan frequency converter control break centrifugal blower thus the air velocity of control break jet-impingement mouth, rotating disk Frequency Converter Control change rotary tray motor (19) rotating speed thus the rotating speed of control break material drying system, temperature, humidity sensor is for obtaining the temperature and humidity of hothouse inside, and be connected with the input of output control module with signals collecting, the output of signals collecting and output control module is connected to electric heating tube (42), the electromagnetic valve switch of ventilation exhaust duct (4), the information of collection is uploaded to main control system by signals collecting and output control module, and perform the control instruction that main control system and touch-screen send.
3. processing of farm products drying machine as claimed in claim 1 or 2, it is characterized in that described charging tray (50) and circular bin (51) removably connect, bond breaker disk area form according to circular bin can be divided into fan-shaped or semicircle, and charging tray (50) base plate is made up of the corrosion resistant plate of punching of gathering.
4. processing of farm products drying machine as claimed in claim 1 or 2, it is characterized in that in described circular distribution of air flow group, round nozzle (27) is evenly distributed on the below of circular gas distribution chamber (26), bar nozzle (21) in described bar shaped distribution of air flow group is arranged on bar shaped gas distribution chamber (22) below, magnitude setting is 1 ~ 5, the blast velocity control scope of round nozzle (27) is 1 ~ 18m/s, the blast velocity control scope of bar nozzle (21) is 1 ~ 20m/s, it is described that to be in the ratio that two, left and right circular gas distribution chamber (26) that same level direction arranges or the projected area of bar shaped gas distribution chamber (22) on the circular bin of the individual layer being positioned at below account for the circular bin area of below individual layer be 1/8 ~ 1/4.
5. processing of farm products drying machine as claimed in claim 3, it is characterized in that in described circular distribution of air flow group, round nozzle (27) is evenly distributed on the below of circular gas distribution chamber (26), bar nozzle (21) in described bar shaped distribution of air flow group is arranged on bar shaped gas distribution chamber (22) below, magnitude setting is 1 ~ 5, the blast velocity control scope of round nozzle (27) is 1 ~ 18m/s, the blast velocity control scope of bar nozzle (21) is 1 ~ 20m/s, it is described that to be in the ratio that two, left and right circular gas distribution chamber (26) that same level direction arranges or the projected area of bar shaped gas distribution chamber (22) on the circular bin of the individual layer being positioned at below account for the circular bin area of below individual layer be 1/8 ~ 1/4.
6. processing of farm products drying machine as claimed in claim 1 or 2, it is characterized in that return air hole (33) place of described return air chamber (38) is provided with return air hole screen pack (12), return air hole screen pack (12) is fixed in hothouse housing (35).
7. processing of farm products drying machine as claimed in claim 1 or 2, it is characterized in that the transmission mechanism in described material drying system structure, its structure comprises hinge wheel (36), minor sprocket (37), decelerator, described rotary tray motor (19) is coaxially arranged on decelerator lower end, decelerator is fixed on hothouse housing (35) bottom, reducer output shaft is connected with hinge wheel (36), hinge wheel (36), minor sprocket (37) pass through chain drive, minor sprocket (37) is affixed with the lower end of central shaft (28), realizes rotary drive.
8. processing of farm products drying machine as claimed in claim 5, it is characterized in that the transmission mechanism in described material drying system structure, its structure comprises hinge wheel (36), minor sprocket (37), decelerator, described rotary tray motor (19) is coaxially arranged on decelerator lower end, decelerator is fixed on hothouse housing (35) bottom, reducer output shaft is connected with hinge wheel (36), hinge wheel (36), minor sprocket (37) pass through chain drive, minor sprocket (37) is affixed with the lower end of central shaft (28), realizes rotary drive.
9. processing of farm products drying machine as claimed in claim 8, is characterized in that in described circular bin group, and circular bin centrally axle (28) axially can be evenly arranged 5 ~ 10 layers, and the outside diameter of circular bin is 500 ~ 2500mm.
10. processing of farm products drying machine as claimed in claim 9, it is characterized in that described cabinet housing (23) structure comprises front shroud (5), door (2), left cover (8), right cover plate (1), lamina tecti (9), back shroud (39), door (2) is provided with window (3), is filled with insulation material in the described hothouse hothouse housing (35) of (13) weeks.
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| CN201410542195.2A CN104266462B (en) | 2014-10-14 | 2014-10-14 | A kind of processing of farm products drying machine |
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| CN111059867A (en) * | 2019-12-24 | 2020-04-24 | 广东电网有限责任公司 | Pulsation vacuum rotary dryer |
| CN111322841A (en) * | 2020-03-20 | 2020-06-23 | 华中农业大学 | Brick tea drying machine |
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