CN112944866A - Continuous hot air drying device with automatic material turning and box combining functions - Google Patents
Continuous hot air drying device with automatic material turning and box combining functions Download PDFInfo
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- CN112944866A CN112944866A CN202110232391.XA CN202110232391A CN112944866A CN 112944866 A CN112944866 A CN 112944866A CN 202110232391 A CN202110232391 A CN 202110232391A CN 112944866 A CN112944866 A CN 112944866A
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- 239000000463 material Substances 0.000 title claims abstract description 156
- 238000007602 hot air drying Methods 0.000 title claims abstract description 24
- 230000006870 function Effects 0.000 title claims abstract description 12
- 239000002356 single layer Substances 0.000 claims abstract description 75
- 238000001035 drying Methods 0.000 claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 33
- 238000007664 blowing Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 4
- 238000013178 mathematical model Methods 0.000 claims description 2
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- 238000006297 dehydration reaction Methods 0.000 description 2
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- 238000012544 monitoring process Methods 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/18—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by endless belts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
Abstract
The invention provides a continuous hot air drying device with automatic material turning and box combining functions, and belongs to the technical field of hot air drying. The device mainly comprises a feeding hopper, a feeding conveyor belt and a discharging conveyor belt, wherein a hot air drying part can be built by using a plurality of sets of single-layer structure components according to factors such as the size and the type of specific materials to be dried, the production capacity and the like, a vertical multi-layer overhead structure is adopted in the hot air drying part, and the layers are arranged in a staggered mode from front to back; the conveying belts which are independently driven are adopted on the plurality of sets of single-layer structure components, the running speed of each layer of conveying belt is independently controlled through the hot air drying device control system, automatic box combination can be realized according to the change of the material drying state and the volume, and the hot air acting efficiency is improved to the greatest extent.
Description
Technical Field
The invention relates to the technical field of hot air drying, in particular to a continuous hot air drying device with automatic material turning and box combining functions.
Background
The drying process is widely applied to various fields of food production, such as industries of vegetables, fruits, traditional Chinese medicinal materials, agricultural and sideline products and the like, and the material drying is an important process method for deep processing of food and the like. With the development of society and the improvement of living standard of residents, the demand of people for dehydrated products is increasing, the requirements on the yield and labor productivity of the dehydrated products are met, and the material drying is being renovated from natural airing to mechanical drying. The mechanical drying equipment adopts various drying methods such as hot air drying, vacuum freeze drying, infrared drying, microwave drying and the like, wherein the most widely applied method is that the hot air drying equipment is adopted by independent multi-box type drying equipment and flat belt type drying machine, and the yield of vegetable products dried by hot air accounts for about 90% of the total yield according to statistics. In the stoving in-process, for avoiding the adhesion between material and equipment, need apply the stirring or turn to the material, in addition, along with the material constantly dry under hot-blast effect, the material water content progressively reduces with the volume, dries according to invariable speed and rhythm and can cause hot-blast inefficiency. Therefore, the material turning and box combining operation in the production process has important significance for improving the product quality and the energy efficiency. At present, the turning and box combining of materials in most hot air drying equipment are mainly manually completed by manual experience judgment, the implementation effect consistency is poor, the working labor intensity is high, the processing environment is poor, and enterprises increasingly face the problem of difficulty in recruitment along with the increase of labor cost. The automatic turning and box combining of the materials are realized by optimizing the structural design and the control capability of the hot air drying equipment, so that the hot air action energy efficiency can be effectively improved on the premise of ensuring the quality of the dried product, and the hot air drying equipment has important significance for energy conservation and consumption reduction of the drying industry.
Disclosure of Invention
The invention aims to provide a continuous hot air drying device with automatic material turning and box combining functions.
The device includes the material loading conveyer belt, the conveyer belt of blowing, the unloading conveyer belt, individual layer structure subassembly and control system, the outside material loading hopper and inside the superiors individual layer structure subassembly are connected to the material loading conveyer belt, install pressure sensor on the material loading hopper, the conveyer belt of blowing of inside lower floor and outside collection system are connected to the unloading conveyer belt, the conveyer belt of blowing is the inside lower floor conveyer belt of drying-machine, individual layer structure subassembly includes material conveyer belt, adjustable speed motor, material baffle, admission valve, inside gas storehouse, high-pressurepipe and temperature and humidity sensor.
The material conveying belt is of a chain plate structure, and small holes are distributed on the chain plate for the drying hot air to pass through; the speed-adjustable motor is a driving device of the material conveying belts, and the running speed of each conveying belt is independently controlled according to needs, so that the box combining effect is realized.
The internal air bin is arranged inside the single-layer structure assembly and is provided with grid pores, and dry hot air enters the internal air bin from the air inlet and then enters the conveyor belt from the grid pores to dry the materials; one set of single-layer construction subassembly contains a plurality of inside gas storehouses (generally be no less than two), and mutual independence between the inside gas storehouse is adjusted respectively by control system.
High-pressure gas pipe installs between inside gas storehouse and material conveyer belt unloading end, and high-pressure gas has led to in high-pressure gas pipe's the pipeline, carries out the air-blowing to the material of treating on the conveyer belt at the stoving in-process and realizes online stirring, avoids adhesion and caking to appear in the material to influence product quality, blows in the material into lower floor's conveyer belt when material and case, avoids the material to remain at upper conveyer belt.
The temperature and humidity sensor is used for detecting the drying state of the materials.
The control system comprises drying mathematical models of different materials, and the quality state of the dried materials in the drying process is evaluated on line and corrected in real time according to the feedback signals of the temperature and humidity sensor; the control system judges whether to adjust the air inflow of the hot air or not by detecting a temperature signal, the air inflow is increased when the temperature is too low, and the air inflow is reduced when the temperature is too high; the material drying state is judged by detecting a humidity signal, the high moisture content of the material is indicated by overhigh humidity, the drying time needs to be increased, and the low moisture content of the material is indicated by overlow humidity, and the drying time needs to be reduced.
The technical scheme of the invention has the following beneficial effects:
among the above-mentioned scheme, provide an automatic stirring and continuous type hot air drying device of case, adopt modular structure can practice thrift the space and improve material drying efficiency to can effectively solve and adopt current drying device to carry out online stirring and automatic demand of case to the dry material at the stoving in-process. The operation speed of each layer of conveyor belt can be adjusted according to the feedback signals of the temperature and humidity sensors, the material turning and box closed-loop control is controlled, automatic adaptation to different raw material drying processes is realized through unmanned continuous feeding and discharging design and real-time monitoring and dynamic control, and the whole drying effect and the unit time output rate can be effectively improved.
Drawings
FIG. 1 is a three-dimensional effect diagram of the apparatus of the present invention;
FIG. 2 is a schematic view of a single layer structure assembly of the present invention;
FIG. 3 is a schematic diagram of control signal interaction according to the present invention; a
Fig. 4 is a schematic view of the structure of the automatic high-efficiency hot air dryer of the invention.
Wherein: 1-high-pressure air pipe A, 2-front-end temperature and humidity sensor, 3-first internal air chamber, 4-second internal air chamber, 5-third internal air chamber, 6-perforated conveyor belt, 7-fourth internal air chamber, 8-conveyor belt right shaft, 9-tail-end temperature and humidity sensor, 10-air inlet valve, 11-air inlet pipe, 12-conveyor belt left shaft, 13-high-pressure air pipe B, 14-feeding conveyor belt, 15-first-set single-layer structure component, 16-second-set single-layer structure component, 17-third-set single-layer structure component, 18-fourth-set single-layer structure component, 19-air blowing conveyor belt, 20-blanking conveyor belt, 21-hot air pipe, 22-cold air pipe and 23-high-pressure air pipe.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a continuous hot air drying device with automatic material turning and box combining functions.
The device comprises a feeding conveyor belt 14, a blowing conveyor belt 19, a blanking conveyor belt 20, a single-layer structure assembly and a control system, as shown in figures 1 and 4, a feeding hopper, the feeding conveyor belt and the blanking conveyor belt are arranged outside, a plurality of single-layer structure assemblies and the blowing conveyor belt are arranged inside, the feeding conveyor belt 14 is connected with the external feeding hopper and the single-layer structure assembly on the uppermost layer inside, a pressure sensor is arranged on the feeding hopper, the blanking conveyor belt 20 is connected with the internal lowermost layer blowing conveyor belt 19 and an external collection system, the blowing conveyor belt 19 is the conveyor belt on the lowermost layer inside the dryer, dried materials can enter the blowing conveyor belt, the materials are rapidly cooled to room temperature by clean cool air and then are sent out of the drying equipment, as shown in figure 2, the single-layer structure assembly comprises a material conveyor belt, an adjustable speed motor, a material baffle plate, an air inlet valve 10, an, a single-layer structure assembly with 4 internal gas chambers and a set of high-pressure gas pipes is selected for specific description, and practical applications and designs include, but are not limited to, 4 internal gas chambers and a set of high-pressure gas pipes.
In the design of this embodiment, as shown in fig. 4, five sets of single-layer structure components are designed, from top to bottom, a first set of single-layer structure component 15, a second set of single-layer structure component 16, a third set of single-layer structure component 17, a fourth set of single-layer structure component 18 are sequentially arranged, the single-layer structure component at the lowest part is a blowing conveyor belt 19, the feeding conveyor belt 14 is connected with the first set of single-layer structure component 15, the blowing conveyor belt 19 is arranged below the fourth set of single-layer structure component 18, the blowing conveyor belt 19 is connected with a discharging conveyor belt 20, the lower part of the blowing conveyor belt 19 is provided with a cold air duct 22, the first set of single-layer structure component 15, the second set of single-layer structure component 16, the lower parts of the third set of single.
As shown in FIG. 2, in each set of single-layer structure components, the conveyor belt system is composed of a conveyor belt left shaft 12, a conveyor belt right shaft 8 and a conveyor belt 6 with holes, and mainly plays a role in conveying and transporting. The high-pressure air pipe A1 assists the material to be dried to enter the lower layer single-layer structure assembly from the upper layer single-layer structure assembly, the material sequentially passes through the first internal air bin 3, the second internal air bin 4, the third internal air bin 5 and the fourth internal air bin 7 along with the conveyor belt system, and the high-pressure air pipe B13 blows the material to achieve material turning. And then the material reaches the end of the conveyor belt to complete the drying process of the layer, and the dried material can fall into the next layer of single-layer structure assembly from the end of the conveyor belt to be combined into a box. The front end and the tail end of the belt conveyer 6 with holes are respectively provided with a front temperature and humidity sensor 2 and a tail end temperature and humidity sensor 9, an air inlet valve 10 is arranged on an air inlet pipeline 11 at the lower part of the belt conveyer 6 with holes, and a control system adjusts the running speed of the belt conveyer, the air inlet speed of the air inlet valve 10 and the air volume according to the monitoring data change of the sensors at the two sides of the belt conveyer.
The material conveying belt is of a chain plate structure, and small holes are distributed on the chain plate for the drying hot air to pass through; the speed-adjustable motor is a driving device of the material conveying belts, and the running speed of each conveying belt is independently controlled according to needs, so that the box combining effect is realized.
The internal air bin is arranged inside the single-layer structure assembly and is provided with grid pores, and dry hot air enters the internal air bin from the air inlet and then enters the conveyor belt from the grid pores to dry the materials; a set of single-layer structure subassembly contains a plurality of inside gas storehouses, and mutual independence between the inside gas storehouse is adjusted respectively by control system.
Fig. 3 is a schematic diagram showing control signal interaction, which mainly comprises a detection unit, a driving unit and a control unit. The detection unit includes: the pressure sensor is arranged on the feeding hopper, and the temperature and humidity sensors are arranged on two sides of the single-layer structure assembly. The drive unit includes: adjustable speed motor and admission valve at individual layer structure subassembly conveyer belt both ends. In the working process of the whole drying system, the control unit can control the driving unit according to the drying requirements of different drying materials and the data fed back by the detection unit, so that the rotation speed of the conveying belt and the air inflow of hot air can be adjusted in real time.
High-pressure gas pipe installs between inside gas storehouse and material conveyer belt unloading end, and it has high-pressure gas to lead to in the pipeline, carries out the air-blowing to the material of treating on the conveyer belt and realizes online stirring at the stoving in-process, avoids the material adhesion and caking to influence product quality to appear, blows in the material into lower floor's conveyer belt when material and case, avoids the material to remain at upper conveyer belt.
The temperature and humidity sensor is used for detecting the drying state of the material, the control system judges whether the air inflow of the hot air is adjusted or not by detecting a temperature signal, the air inflow is increased when the temperature is too low, and the air inflow is reduced when the temperature is too high; the material drying state is judged by detecting a humidity signal, the high moisture content of the material is indicated by overhigh humidity, the drying time needs to be increased, and the low moisture content of the material is indicated by overlow humidity, and the drying time needs to be reduced.
The control system comprises mathematical drying models of different materials, online evaluation and real-time correction of the quality state of the dried materials in the drying process are carried out according to the feedback signals of the temperature and humidity sensor, the drying effect of the materials in each area is predicted according to the dehydration model, and the prediction result is compared with the set value of the area and then used for intelligent correction of the drying process of the area and the next area. The control system can control the high-pressure air pipe to blow air to the materials to be dried on the conveyor belt to realize material turning, so that the materials are prevented from being adhered and agglomerated to influence the product quality; and according to the change of the material drying state and the volume, the running speed of the conveyor belt of each single-layer structure component can be adjusted to enable the upper-layer materials to turn over and fall to the lower layer to complete box combining, and the thickness of each layer of materials is kept the same. The control system can realize continuous and efficient full-automatic drying control without manual intervention, and improve the action efficiency of hot air to the maximum extent, thereby ensuring that products meeting the dehydration quality requirement are produced at the end point of the drying process.
The specific working process of the automatic material turning and box hot air drying device is as follows: and the material to be dried is conveyed to the single-layer structure assembly on the uppermost layer in the feeding hopper by the feeding conveyor belt. The inside gas storehouse of hot-blast follow in the first set of single-layer construction subassembly flows out, carries out the drying to the material. Along with the rotation of conveyer belt, the material removes the end to first set of single-layer structure subassembly, and high-pressurepipe can carry out the air-blast realization on-line stirring to the stoving material during, then drops to on second set of single-layer structure subassembly, second set of single-layer structure subassembly running direction is opposite with first set of direction. Through the stoving of first set of single-layer structure subassembly, the material water content reduces and the thinning of volume thickness, for the effect efficiency that improves hot-blast the furthest needs to keep material thickness the same, and second set single-layer structure subassembly conveyer belt operating speed will be less than first set, makes upper material turn over to fall the lower floor and realizes automatic case. And the dry hot air flows out from the internal air bin in the second set of single-layer structure assembly to dry the material. Along with the rotation of conveyer belt, the material removes the end to second set of single-layer structure subassembly, and the high-pressurepipe carries out the air-blast realization on-line stirring to the stoving material during this, then drops on the third set of single-layer structure subassembly. The running speed of the third set of single-layer structure component conveyor belt is lower than that of the second set, so that the upper-layer materials fall to the lower layer to realize automatic box combining. Follow-up work flow is the same with above-mentioned operation, and the stoving steam of each set of subassembly flows from the inside gas storehouse of this subassembly, carries out the drying to the material of this layer, and high-pressurepipe can carry out the air-blast realization on-line stirring to the stoving material. The materials can sequentially enter the rear single-layer structure assembly to be dried, the lower layer of the conveyor belt runs at a lower speed, the upper layer of the materials are turned over to the lower layer, automatic box combining is achieved, and the thickness of each layer of the materials is kept consistent. And finally, the material enters a blowing conveyor belt for blowing cooling, and the material enters a blanking conveyor belt after being cooled. The control system adjusts the air output of each internal air bin according to the feedback signals of the temperature and humidity sensors arranged on the single-layer structure component; the high-pressure air pipe is controlled in a timing manner, so that air blowing is carried out on the dried materials to realize online material turning; and the running speed of each layer of conveyor belt can be controlled to realize automatic material combining, so that the drying process is maintained in a relatively stable state.
The specific operation steps are as follows:
step 1: the external feeding conveyor belt 14 conveys the materials to the first set of single-layer structure components 15, the working direction of the external feeding conveyor belt is from left to right, hot air flows out from the hot air pipeline 21 through the first internal air bin 3 to penetrate through the materials, and the high-pressure air pipe 23 blows the materials to realize on-line material turning. The speed of the conveyor belt of the second set of single-layer structure components 16 is slower than that of the conveyor belt of the first set of single-layer structure components 15, and the materials slowly fall into the second set of single-layer structure components 16 after reaching the rightmost side along with the conveyor belt of the first set of single-layer structure components 15, so that the first-time automatic material combining is realized. The high-pressure air pipe 23 blows air to the discharging end of the first single-layer structure assembly 15, and materials are guaranteed to smoothly enter the lower-layer conveyor belt and do not fall into gaps.
Step 2: the working direction of the second single-layer structure assembly 16 is from right to left, the drying hot air flows out from the hot air duct 21 through the internal air bin of the second single-layer structure assembly 16 to penetrate through the material, and the high-pressure air pipe 23 blows the material to realize on-line material turning. The speed of the conveyor belt of the third single-layer structure assembly 17 is slower than that of the conveyor belt of the second single-layer structure assembly 16, and the dried materials slowly fall into the third single-layer structure assembly 17 after reaching the leftmost side along with the conveyor belt of the second single-layer structure assembly 16, so that the automatic material combining for the second time is realized. The high-pressure air pipe 23 blows air to the blanking end of the second single-layer structure component 16, so that materials can smoothly enter the lower-layer conveyor belt and cannot fall into gaps.
And step 3: the working direction of the third single-layer structure assembly 17 is from left to right, the drying hot air flows out from the hot air pipeline 21 through the air bin inside the third single-layer structure assembly 17 to penetrate through the material, and the high-pressure air pipe 23 blows the material to realize on-line material turning. The speed of the conveyor belt of the fourth set of single-layer structure components 18 is slower than that of the conveyor belt of the third set of single-layer structure components 17, and the dried materials slowly fall onto the fourth set of single-layer structure components 18 after reaching the rightmost side along with the conveyor belt of the third set of single-layer structure components 17, so that the third-time automatic material combining is realized. The high-pressure air pipe 23 blows air to the discharging end of the third single-layer structure assembly 17, so that materials can smoothly enter the lower-layer conveyor belt and cannot fall into gaps.
And 4, step 4: the working direction of the fourth single-layer structure assembly 18 is from right to left, the drying hot air flows out from the hot air pipeline 21 through the air bin inside the fourth single-layer structure assembly 18 and penetrates through the material, and the high-pressure air pipe 23 blows the material to realize on-line material turning. The speed of the conveyor belt of the blowing conveyor belt 19 is slower than that of the conveyor belt of the fourth single-layer structure assembly 18, and the dried materials slowly fall onto the blowing conveyor belt 19 after reaching the leftmost side along with the conveyor belt of the fourth single-layer structure assembly 18, so that the fourth-time automatic material combining is realized. The high-pressure air pipe 23 blows air to the discharging end of the fourth single-layer structure assembly 18, so that materials can smoothly enter the lower-layer conveyor belt and cannot fall into gaps.
And 5: the blowing conveyor 19 operates from left to right. Cold air flows out from the cold air duct 22 through the air bin inside the air blowing conveyor belt 19 to penetrate through the material, so that the temperature of the material is ensured to be reduced to room temperature before the material leaves the air blowing conveyor belt 19. The cooled material reaches the rightmost side along with the blowing conveyor 19 and then enters the blanking conveyor 20.
Step 6: the material continues to move along with the blanking conveyor belt 20 and enters an external collection system for packaging and collection.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides a continuous type hot air drying device with automatic stirring and case merging function which characterized in that: including material loading conveyer belt (14), conveyer belt (19) of blowing, unloading conveyer belt (20), single-layer structure subassembly and control system, outside material loading hopper and inside the superiors single-layer structure subassembly are connected in material loading conveyer belt (14), install pressure sensor on the material loading hopper, inside bottom layer conveyer belt (19) of blowing and outside collection system are connected in unloading conveyer belt (20), conveyer belt (19) of blowing is the inside bottom layer conveyer belt of drying-machine, single-layer structure subassembly includes material conveyer belt, adjustable speed motor, material baffle, admission valve (10), inside gas storehouse, high-pressurepipe and temperature and humidity sensor.
2. The continuous hot air drying device with the automatic material turning and box combining functions as claimed in claim 1, is characterized in that: the material conveying belt is of a chain plate structure, and small holes are distributed in the chain plate to allow drying hot air to pass through; the speed-adjustable motor is a driving device of the material conveying belts, and the running speed of each material conveying belt is independently controlled, so that the box combining effect is realized.
3. The continuous hot air drying device with the automatic material turning and box combining functions as claimed in claim 1, is characterized in that: the internal air bin is arranged inside the single-layer structure assembly and is provided with grid small holes, and dry hot air enters the internal air bin from the air inlet and then enters the conveyor belt from the grid small holes to dry the materials; one set of single-layer structure subassembly contains and is no less than two inside gas storehouses, and mutual independence between the inside gas storehouse is adjusted respectively by control system.
4. The continuous hot air drying device with the automatic material turning and box combining functions as claimed in claim 1, is characterized in that: high-pressure gas pipe installs between inside gas storehouse and material conveyer belt unloading end, and high-pressure gas has led to in high-pressure gas's the pipeline, carries out the air-blowing realization on-line stirring to the material of treating on the material conveyer belt in the stoving process, blows in lower floor's material conveyer belt with the material when material and case, avoids the material to remain at upper material conveyer belt.
5. The continuous hot air drying device with the automatic material turning and box combining functions as claimed in claim 1, is characterized in that: the temperature and humidity sensor is used for detecting the drying state of the materials.
6. The continuous hot air drying device with the automatic material turning and box combining functions as claimed in claim 1, is characterized in that: the control system comprises drying mathematical models of different materials, and the quality states of the dried materials in the drying process are evaluated on line and corrected in real time according to feedback signals of the temperature and humidity sensor; the control system judges whether to adjust the air inflow of the hot air or not by detecting a temperature signal, the air inflow is increased when the temperature is too low, and the air inflow is reduced when the temperature is too high; the material drying state is judged by detecting a humidity signal, the high moisture content of the material is indicated by overhigh humidity, the drying time needs to be increased, and the low moisture content of the material is indicated by overlow humidity, and the drying time needs to be reduced.
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| CN206832000U (en) * | 2017-05-31 | 2018-01-02 | 东莞市荣源自动化科技有限公司 | A kind of three-layer network band conveying device |
| CN206891105U (en) * | 2017-04-14 | 2018-01-16 | 英德积庆里茶业有限公司 | A kind of drying machine for being used to improve black tea condition |
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| CN209371732U (en) * | 2018-11-21 | 2019-09-10 | 百川生物科技有限公司 | A kind of wire-drawing protein Drying and cooling all-in-one machine |
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| CN209524726U (en) * | 2019-01-05 | 2019-10-22 | 赣州市净达生物新能源有限公司 | A kind of biomass fuel dehumidification system |
| CN209605553U (en) * | 2019-01-08 | 2019-11-08 | 武汉市侏儒山食品有限公司 | A kind of stir-frying dryer |
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| CN204255022U (en) * | 2014-10-15 | 2015-04-08 | 安徽省青阳县九华中药材科技有限公司 | A kind of medicinal material drying device being convenient to stirring |
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| CN206222880U (en) * | 2016-11-30 | 2017-06-06 | 四川农业大学 | Sawdust board raw material wood chip drying device |
| CN206891105U (en) * | 2017-04-14 | 2018-01-16 | 英德积庆里茶业有限公司 | A kind of drying machine for being used to improve black tea condition |
| CN206832000U (en) * | 2017-05-31 | 2018-01-02 | 东莞市荣源自动化科技有限公司 | A kind of three-layer network band conveying device |
| CN207515451U (en) * | 2017-11-02 | 2018-06-19 | 黄冈市华窑中瑞窑炉有限公司 | A kind of chemical catalyst multilayer health preserving equipment |
| CN107764022A (en) * | 2017-11-29 | 2018-03-06 | 山丹县天泽农牧科技开发有限责任公司 | A kind of layer-stepping herbage drying unit continuously run |
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| CN210085338U (en) * | 2019-05-05 | 2020-02-18 | 水城县兴龙精淀粉有限公司 | Vacuum dehydration device for starch production |
| CN111623620A (en) * | 2020-05-25 | 2020-09-04 | 国润环保工程(常州)有限公司 | Slurry filter press for kitchen garbage |
| CN212315904U (en) * | 2020-09-16 | 2021-01-08 | 中国科学院广州能源研究所 | Energy-saving sludge drying system |
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