CN112629225A - Food drying device - Google Patents

Abstract

The invention relates to the technical field of food processing equipment, in particular to a food drying device, which can effectively improve the water evaporation speed by automatically drying the food, thereby improving the drying speed of the food, improving the work efficiency, and at the same time the food After comprehensive flip drying treatment, it can effectively improve the drying effect of food, reduce moisture residue, and improve practicability and reliability; including the outer box body and the feeding pipeline, the lower left side of the bottom of the outer box body is lower than the lower right side, and the outer box body The bottom left side of the outer box is connected with an air exhaust mechanism, the top right side of the outer box is provided with a heating and air supply mechanism, the lower right side of the outer box is connected with a discharge port, and the feeding pipe is installed obliquely on the upper left side of the outer box. And extend into the left side inside the outer box.

Description

A food drying device

technical field

The invention relates to the technical field of food processing equipment, in particular to a food drying device.

Background technique

As we all know, when food is processed and produced, it is usually necessary to dry the cleaned food, so as to remove the moisture on the surface of the food and keep the food dry, which is convenient for subsequent processing. The existing food drying method is usually natural air drying. The drying speed of this method is slow, the evaporation speed of the water on the surface of the food is slow, and the work efficiency is low. At the same time, the food cannot be automatically turned over, so that the moisture on the shielding surface of the food cannot be quickly evaporated, which affects the drying effect.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present invention provides a kind of automatic drying process for food, which can effectively increase the water evaporation speed, thereby improving the food drying speed and improving the work efficiency. Drying effect, reduce moisture residue, improve practicability and reliability of food drying device.

A food drying device of the present invention includes an outer box body and a feeding pipeline. The lower left side of the bottom of the outer box body is lower than the lower right side, and the left side of the bottom of the outer box body is communicated with an exhaust mechanism. There is a heating and air supply mechanism on the right side of the top, and a discharge port is connected to the lower right side of the outer box. There is a bulking mechanism on the side, and a turning feeding mechanism is arranged inside the outer box. The position of the bulking mechanism corresponds to the position of the turning feeding mechanism. The top of the inner wall of the outer box is evenly staggered with multiple sets of air guide plates. The air panels are composed of multiple sets of arc-shaped panels spliced in a stepped shape, and the underside of the arc-shaped panels on each set of air guide panels is inclined downward; The food is evenly distributed by the bulking mechanism, and the food is evenly laid on the inverting feeding mechanism. The inverting feeding mechanism inverts the food and conveys it to the right, and the heating and air supply mechanism discharges the hot air in it into the outer box. On the upper right side of the interior, the hot air flows to the left and blows onto multiple sets of air deflectors, which guide the hot air, so that the hot air flows down to the food on the overturning feeding mechanism, so as to improve the food in the overturned state. The food is fully heated and dried. At the same time, since each set of air guide plates is formed by splicing multiple sets of arc-shaped plates in a stepped shape, the multiple sets of air guide plates can evenly spread the hot air to the overturning feeding mechanism. The plates are installed in a staggered manner, and the hot air can flow to the left through the gaps between the multiple sets of air guide plates, so that the hot air can be evenly distributed among the multiple sets of air guide plates and synchronously guided through the multiple sets of air guide plates. The temperature of the internal air gradually increases from left to right, which can gradually heat and dry the food. The exhaust mechanism can discharge the air and moisture in the outer box to the outside, so that the water vapor in the outer box can be quickly discharged. The dried food is discharged through the discharge port on the right side of the outer box, so as to complete the automatic drying process of the food. At the same time, the food is completely turned over and dried, which effectively improves the drying effect of the food, reduces the moisture residue, and improves the practicability and reliability.

In the food drying device of the present invention, the overturning and feeding mechanism includes four sets of rotating shafts, four sets of synchronizing rollers, chain plates, two sets of sidewalls and a first motor. and the rear end are rotatably installed on the inner side wall of the outer box, the four sets of synchronizing rollers are respectively installed on the four sets of rotating shafts, the chain plates are laid on the outer walls of the four sets of synchronizing rollers and drive the four sets of synchronizing rollers to rotate synchronously, the top of the chain plate The left and right sides are inclined in the same direction, the upper side of the middle part of the chain plate is stepped, and the two sets of ribs are installed on the front and rear sides of the chain plate respectively. The rear output end of a motor is connected to the front end of the left rotating shaft, and the upper left position of the chain plate corresponds to the position of the bulk material mechanism; open the first motor, the first motor drives the chain through the left rotating shaft and the synchronizing roller on it. The plate and the two sets of ribs rotate synchronously, the chain plate drives the remaining three sets of synchronizing rollers and the three sets of rotating shafts to rotate synchronously, the food discharged from the bulking mechanism is evenly scattered to the top left side of the chain plate, and the rotating chain plate drives the food to the right. , When the food moves to the middle of the chain plate, the food automatically flips and falls, so as to realize the purpose of automatic flipping and conveying of the food. At the same time, since the left and right sides of the top of the chain plate are inclined in the same direction, it is convenient to make the moving direction of the food and The wind directions of the multiple sets of air deflectors are kept corresponding, which is convenient for the comprehensive drying of the food. The food is conveyed obliquely. The moisture on the food can pass through the chain plate and drip to the bottom of the outer box, and the water at the bottom of the outer box can be removed. into the exhaust system.

In the food drying device of the present invention, the bulk material mechanism includes a bulk material channel, a second motor, a turntable, a wave rod and an elliptical power sleeve. On the right outer wall of the feed pipe, the left end of the bulk material channel is slidably installed on the left side of the inner side wall of the outer box. Material stop lever, the left ends of the multiple groups of bulk material stop levers are all set as conical surfaces, the second motor is installed on the left side wall of the outer box, the turntable is located on the left inside the outer box and is driven with the right output end of the second motor connected, the wave rod is eccentrically installed on the upper right side of the turntable, the elliptical power sleeve is vertically slid on the outside of the wave rod, and the top of the oval power sleeve is fixed at the bottom of the bulk material channel; open the second motor, the second motor passes through The turntable drives the wave rod to rotate eccentrically. The wave rod slides up and down in the oval power sleeve and pushes the oval power sleeve to move forward and backward. The oval power sleeve drives the bulk material channel and multiple groups of bulk material stop rods to move forward and backward on the feed pipe. Move, so that the bulk material channel is in a vibrating state, the food in the feeding pipe is discharged into the bulk material channel and falls to the upper left side of the top of the chain plate through the gap between the multiple groups of bulk material stop bars. The bulk material channel in the vibrating state And multiple groups of bulk material stop bars can easily make the food evenly spread on the chain plate, which is convenient to make the food evenly distributed, avoid the blocking between the foods, and improve the drying effect.

In the food drying device of the present invention, guide rods are longitudinally arranged at the front and rear ends of the bulk material channel, and the outer ends of the two sets of guide rods pass through the outer box and protrude to the outside of the outer box. The guide rods are all slidably connected with the outer box body, and the outer sides of the two sets of guide rods are sleeved with springs. On the inner side wall of the outer box; when the bulk material channel vibrates back and forth, the bulk material channel drives the two groups of guide rods to slide back and forth on the outer box body, which is convenient for guiding and supporting the bulk material channel, and the two groups of springs are squeezed by the bulk material channel. The pressure produces elastic deformation, and two sets of springs buffer the bulk material channel.

In the food drying device of the present invention, the heating and air supply mechanism includes a first air pump, two groups of first air pipes, a cylindrical heating bin, a three-way pipe and a dispersing air bin. The first air pump is installed on the top of the outer box, and the two groups The first air pipe is connected and installed on the left input end and the right output end of the first air pump, the cylindrical heating chamber is located on the right side of the first air pump and is installed on the outer box, and the top of the cylindrical heating chamber is set to be inclined and inclined. The direction is toward the upper right, the right output end of the first air pipe on the right side of the first air pump extends into the cylindrical heating chamber, and the direction of the right output end of the first air pipe on the right side is tangential to the inner wall of the cylindrical heating chamber. There are several groups of heating rings evenly arranged on the inner wall of the heating chamber. The three-way pipe is installed on the right side of the top of the cylindrical heating chamber. The air diffuser is installed on the upper right side of the outer box. They are connected and installed at the front and rear ends of the air silo. The left side of the silo is connected with a flat air outlet. The air outlet communicates with the upper right side of the outer box. The position of the plate corresponds; turn on the first air pump, the first air pump sucks the outside air through the first air pipe on the left side and discharges it into the cylindrical heating chamber through the first air pipe on the right side. The direction is tangent to the inner side wall of the cylindrical heating chamber. The air discharged into the cylindrical heating chamber by the first air pipe on the right side rotates and flows along the inner wall of the cylindrical heating chamber. The air inside is heated to form a hot air flow. The hot air flows upward and is discharged from the left to the upper right side of the outer box through the tee pipe and the air diffuser, so as to provide hot air inside the outer box. At the same time, due to the cylindrical heating chamber The top is inclined, which can facilitate the gas-condensing treatment of the hot air in it, which improves the practicability and reliability.

A food drying device of the present invention further comprises a stirring shaft, which is vertically rotated and installed in the middle of the cylindrical heating bin, and a plurality of sets of arc-shaped stirring plates are evenly inclined on the outer wall of the stirring shaft; The air discharged from the air pipe into the cylindrical heating chamber can blow multiple sets of arc-shaped stirring plates and agitating shafts to rotate, and multiple sets of arc-shaped stirring plates can stir the air in the cylindrical heating chamber to rotate along the inner side wall of the cylindrical heating chamber At the same time, since multiple sets of arc-shaped stirring plates are installed obliquely, it is convenient to push the hot air in the cylindrical heating chamber to flow upward, and improve the air flow speed in the cylindrical heating chamber and the contact effect between the air and the multiple sets of heating rings. Thereby, the temperature and generation efficiency of the hot air flow are improved.

In the food drying device of the present invention, the air exhaust mechanism includes a water storage bin, an air guide channel, a second air pump, two sets of second air pipes, a drain pipe and a water valve, and the water storage bin is installed on the left side of the bottom of the outer box. The air guide channel is installed on the lower left side of the sump and communicated with each other. The upper left side of the air guide channel is connected to the left side of the bottom of the outer box. The second air pump is installed on the upper right side of the water silo, and the two sets of second air pipes are connected and installed respectively. On the top and right side of the second air pump, the second air pipe at the top of the second air pump is connected to the upper side of the water storage tank, the drain pipe is connected and installed at the bottom of the water storage tank, and the water valve is installed on the drain pipe; open the second air pump , the second air pump pulls out the air in the water tank through the second air pipe at the top and discharges it to the outside through the second air pipe on the right side of the second air pump. The water vapor in the outer box is discharged, and at the same time, the water accumulated at the bottom of the outer box can flow into the water storage bin through the air guide channel. The water in the sump is quickly pumped out and stored in the sump, thereby increasing the water discharge speed in the outer box. When the water stored in the sump reaches the specified value, open the water valve, and the water in the sump can pass through the drain pipe. It is discharged into the external collection device, so as to achieve the purpose of simultaneously extracting the water and water vapor in the external box of the water storage tank, and improve the practicability.

A food drying device of the present invention further comprises a water pressure gauge, which is installed on the lower right side of the water storage bin and communicates with the interior of the water storage bin; The storage capacity is detected in real time to improve practicability and reliability.

Compared with the prior art, the beneficial effects of the present invention are: the food is poured onto the inversion feeding mechanism through the feeding pipeline and the bulk material mechanism, the bulk material mechanism performs uniform bulk processing on the food, and the food is evenly laid on the inversion feeding mechanism. , the overturning feeding mechanism turns the food over and conveys it to the right, and the heating air supply mechanism discharges the hot air into the upper right side of the outer box, and the hot air flows to the left and blows to the multiple sets of air guide plates. The air deflector guides the hot air flow, so that the hot air flows down to the food on the overturning feeding mechanism, so that the food in the overturned state can be fully heated and dried. The plates are spliced in a stepped shape. Multiple sets of air guide plates can spread the hot air evenly to the overturning feeding mechanism. Multiple sets of air guide plates are installed in a staggered manner. The hot air can flow to the left through the gaps between the multiple sets of air guide plates. In this way, the hot air is evenly distributed among the multiple sets of wind deflectors and processed by the multiple sets of wind deflectors synchronously. The temperature of the air inside the outer box gradually increases from left to right, which can gradually heat and dry the food. The air exhaust mechanism can discharge the air and moisture in the outer box to the outside, so that the water vapor in the outer box can be quickly discharged, and the dried food is discharged through the discharge port on the right side of the outer box, so as to complete the automatic In the drying process, by automatically drying the food, the evaporation rate of water can be effectively increased, thereby increasing the drying speed of the food and improving the work efficiency. residue, improving usability and reliability.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the front side oblique view of the interior of the outer box in Fig. 1;

Fig. 3 is a schematic cross-sectional oblique view of the middle of the outer box in Fig. 1;

Fig. 4 is a partial enlarged structural schematic diagram at A in Fig. 3;

Symbols in the drawings: 1. Outer box body; 2. Feeding pipe; 3. Air deflector; 4. Rotating shaft; 5. Synchronous roller; 6. Chain plate; Bulk material channel; 10. Bulk material stop rod; 11. Second motor; 12. Turntable; 13. Wave rod; 14. Oval power sleeve; 15. Guide rod; 16. Spring; 17. First air pump; 18. 1st air pipe; 19. Cylinder heating bin; 20. Heating ring; 21. Three-way pipe; 22. Air diffuser; 23. Stirring shaft; 24. Arc-shaped stirring plate; 25. Water storage bin; 26. Guide Air channel; 27, second air pump; 28, second air pipe; 29, drain pipe; 30, water valve; 31, water pressure gauge.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

As shown in Figures 1 to 4, a food drying device of the present invention, when working, pours the food into the overturning feeding mechanism through the feeding pipeline 2 and the bulk material mechanism, and the bulk material mechanism uniformly distributes the food. For bulk material processing, the food is evenly laid on the inverting feeding mechanism, the inverting feeding mechanism inverts the food and conveys it to the right, and the heating air supply mechanism discharges the hot air in it to the upper right side of the outer box 1, and the hot air is directed to the left The air flows and blows onto multiple sets of air deflectors 3, and the multiple sets of air deflectors 3 guide the hot air flow, so that the hot air flows down to the food on the overturning feeding mechanism, so as to fully heat and dry the food in the overturned state. At the same time, since each set of air guide plates 3 is formed by splicing multiple sets of arc-shaped plates according to the stepped shape, the multiple sets of air guide plates 3 can evenly spread the hot air to the overturning feeding mechanism, and the multiple sets of air guide plates 3 are staggered. After installation, the hot air can flow to the left through the gaps between the multiple sets of air guide plates 3, so that the hot air can be evenly distributed among the multiple sets of air guide plates 3 and synchronously diverted through the multiple sets of air guide plates 3. 1 The temperature of the air inside increases gradually from left to right, which can gradually heat and dry the food, and the exhaust mechanism can discharge the air and moisture in the outer box 1 to the outside, so that the The water vapor is quickly discharged, and the dried food is discharged through the discharge port on the right side of the outer box 1, so as to complete the automatic drying processing of the food.

The main functions realized by the present invention are: by automatically drying the food, the water evaporation speed can be effectively increased, thereby increasing the drying speed of the food and improving the work efficiency; The effect of reducing the residual moisture; the working mode of the overturning feeding mechanism is to turn on the first motor 8, and the first motor 8 drives the chain plate 6 and the two sets of ribs 7 to rotate synchronously through the left rotating shaft 4 and the synchronizing roller 5 on it. The plate 6 drives the remaining three sets of synchronizing rollers 5 and the three sets of rotating shafts 4 to rotate synchronously, the food discharged from the bulking mechanism is evenly scattered to the top left of the chain plate 6, and the rotating chain plate 6 drives the food to be conveyed to the right. In the middle of the chain plate 6, the food is automatically flipped and dropped, so as to achieve the purpose of automatic transfer of the food. At the same time, because the top left and right sides of the chain plate 6 are inclined in the same direction, it is convenient to make the moving direction of the food and the multi-group guide. The wind direction diverted by the air plate 3 is kept corresponding, which is convenient for the comprehensive drying of the food. The food is conveyed obliquely, and the moisture on the food can pass through the chain plate 6 and drop to the bottom of the outer box 1. The water at the bottom of the outer box 1 It can enter into the exhaust mechanism; the working mode of the bulk material mechanism is to open the second motor 11, the second motor 11 drives the wave rod 13 to rotate eccentrically through the turntable 12, and the wave rod 13 slides up and down in the elliptical power sleeve 14 and pushes The oval power sleeve 14 moves back and forth, and the oval power sleeve 14 drives the bulk material channel 9 and the multiple groups of bulk material stop bars 10 to move back and forth on the feed pipe 2, so that the bulk material channel 9 is in a vibrating state, and the feed pipe The food in 2 is discharged into the bulk material channel 9 and falls to the upper left side of the top of the chain plate 6 through the gaps between the groups of bulk material stop bars 10. The bulk material channel 9 and the groups of bulk material stop bars 10 in the vibrating state can be It is convenient to lay the food evenly on the chain plate 6, which is convenient to make the food evenly distributed, avoid the blocking of the food, and improve the drying effect; when the bulk material channel 9 vibrates back and forth, the bulk material channel 9 drives the two sets of guide rods 15 in the outer box. 1 slides up and down, which is convenient for guiding and supporting the bulk material channel 9. At the same time, two sets of springs 16 are squeezed by the bulk material channel 9 to produce elastic deformation, and the two sets of springs 16 buffer the bulk material channel 9; heating and air supply mechanism The working method is to open the first air pump 17, the first air pump 17 sucks the outside air through the first air pipe 18 on the left side and discharges it into the cylindrical heating bin 19 through the first air pipe 18 on the right side. The direction of the right output end of 18 is tangent to the inner wall of the cylindrical heating chamber 19, and the air discharged into the cylindrical heating chamber 19 by the first air pipe 18 on the right side rotates and flows along the inner wall of the cylindrical heating chamber 19, opening multiple groups of heating rings. 20. Multiple sets of heating rings 20 heat the air inside the cylindrical heating bin 19 to form a hot air flow, and the hot air flows upward and is discharged to the left to the upper right side of the outer box 1 through the tee 21 and the air diffuser 22 , so as to provide hot air flow inside the outer box 1, and at the same time, because the top of the cylindrical heating chamber 19 is inclined, it is convenient to carry out gas accumulation treatment on the hot air flow inside; the first air pipe 18 on the right side is discharged into the cylindrical heating chamber 19. The air can blow multiple sets of arc-shaped stirring plates 24 and stir The shaft 23 rotates, and the multiple sets of arc-shaped stirring plates 24 can stir the air in the cylindrical heating bin 19 to rotate and flow along the inner wall of the cylindrical heating bin 19. Push the hot air flow in the cylindrical heating chamber 19 to flow upward, improve the air flow speed in the cylindrical heating chamber 19 and the contact effect between the air and the multiple groups of heating rings 20, thereby improving the temperature and generation efficiency of the hot air; the work of the exhaust mechanism The method is to turn on the second air pump 27, the second air pump 27 pulls out the air in the water storage silo 25 through the second air pipe 28 at the top and discharges it to the outside through the second air pipe 28 on the right side of the second air pump 27, and the water storage silo 25 passes through The air guide channel 26 pulls out the air in the outer box 1, thereby discharging the water vapor in the outer box 1. At the same time, the water accumulated at the bottom of the outer box 1 can flow into the water storage bin 25 through the air guide channel 26. When there is a lot of water at the bottom of the outer box 1, the water tank 25 can quickly extract the water at the bottom of the outer box 1 through the air guide channel 26 and store it in the water tank 25, thereby improving the discharge of water in the outer box 1. When the water stored in the sump 25 reaches the specified value, the water valve 30 is opened, and the water in the sump 25 can be discharged to the external collection device through the drain pipe 29, so as to realize the external box 1 of the sump 25. The purpose of simultaneously extracting the water and water vapor in the tank; by setting the water pressure gauge 31, it is convenient to conduct real-time detection of the water storage capacity in the water storage tank 25, thereby improving the practicability and reliability.

In the food drying device of the present invention, the installation method, connection method or setting method are all common mechanical methods, as long as the beneficial effects can be achieved; the heating ring 20 and the water pressure gauge 31 can be purchased in the market.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (8)

1. A food drying device is characterized by comprising an outer box body (1) and a feed pipeline (2), wherein the left lower side of the bottom of the outer box body (1) is lower than the right lower side, the left side of the bottom of the outer box body (1) is communicated with an air exhaust mechanism, the right side of the top of the outer box body (1) is provided with a heating and air supply mechanism, the right lower side of the outer box body (1) is communicated with a discharge hole, the feed pipeline (2) is obliquely arranged on the left upper side of the outer box body (1) and extends into the left side inside the outer box body (1), the right side of the feed pipeline (2) is provided with a bulk cargo mechanism, the inside of the outer box body (1) is provided with an overturning feeding mechanism, the position of the bulk cargo mechanism corresponds to the position of the overturning feeding mechanism, the tops of the inner wall of the outer box body (1) are uniformly and alternately provided, the lower side directions of the arc-shaped plates on each group of air guide plates (3) are inclined downwards.

2. The food drying device according to claim 1, wherein the turnover feeding mechanism comprises four sets of rotating shafts (4), four sets of synchronous rollers (5), chain plates (6), two sets of flanges (7) and a first motor (8), the four sets of rotating shafts (4) are longitudinally and uniformly distributed in the outer box body (1), the front ends and the rear ends of the four sets of rotating shafts (4) are rotatably mounted on the inner side wall of the outer box body (1), the four sets of synchronous rollers (5) are respectively mounted on the four sets of rotating shafts (4), the chain plates (6) are laid on the outer walls of the four sets of synchronous rollers (5) and drive the four sets of synchronous rollers (5) to synchronously rotate, the left side and the right side of the top of the chain plates (6) are inclined in the same direction, the upper side of the middle of the chain plates (6) is in a step shape, the two sets of flanges (7) are respectively mounted on the front side and the rear side of the chain plates (6), the first motor (8) is, the rear output end of the first motor (8) is in transmission connection with the front end of the left rotating shaft (4), and the upper left side of the chain plate (6) corresponds to the bulk cargo mechanism.

3. The food drying device according to claim 2, wherein the bulk cargo mechanism comprises a bulk cargo channel (9), a second motor (11), a rotary table (12), a wave rod (13) and an oval power sleeve (14), the bulk cargo channel (9) is obliquely positioned at the upper left side inside the outer box body (1), the bulk cargo channel (9) is slidably sleeved on the outer wall at the right side of the feeding pipeline (2), the left end of the bulk cargo channel (9) is slidably installed at the left side of the inner side wall of the outer box body (1), the right end of the bulk cargo channel (9) corresponds to the upper left side of the chain plate (6), a plurality of groups of bulk cargo blocking rods (10) are uniformly arranged at the right end of the bulk cargo channel (9), the left ends of the plurality of groups of bulk cargo blocking rods (10) are all set to be conical surfaces, the second motor (11) is installed on the left side wall of the outer box body (1), the rotary table (12) is positioned at the left side inside the outer box body, the fluctuating rod (13) is eccentrically arranged at the upper right side of the rotary table (12), the elliptic power sleeve (14) is vertically sleeved on the outer side of the fluctuating rod (13) in a sliding manner, and the top of the elliptic power sleeve (14) is fixed at the bottom of the bulk material channel (9).

4. The food drying device as claimed in claim 3, wherein the front end and the rear end of the bulk material channel (9) are longitudinally provided with guide rods (15), the outer ends of the two sets of guide rods (15) penetrate through the outer box body (1) and extend out of the outer side of the outer box body (1), the two sets of guide rods (15) are slidably connected with the outer box body (1), the outer sides of the two sets of guide rods (15) are sleeved with springs (16), the two sets of springs (16) are located in the outer box body (1), and the inner ends and the outer ends of the two sets of springs (16) are respectively installed on the outer side wall of the bulk material channel (9) and the inner side wall of the outer box body (1).

5. The food drying device according to claim 4, wherein the heating and blowing mechanism comprises a first air pump (17), two sets of first air pipes (18), a cylindrical heating chamber (19), a three-way pipe (21) and an air dispersing chamber (22), the first air pump (17) is installed at the top of the outer box (1), the two sets of first air pipes (18) are respectively installed at the left input end and the right output end of the first air pump (17) in a communicating manner, the cylindrical heating chamber (19) is located at the right side of the first air pump (17) and is installed on the outer box (1), the top of the cylindrical heating chamber (19) is arranged to be an inclined plane and the inclined direction of the top of the cylindrical heating chamber faces to the upper right, the right output end of the first air pipe (18) at the right side of the first air pump (17) extends into the cylindrical heating chamber (19), the direction of the right output end of the first air pipe (18) at the right side of the, evenly be provided with multiunit heating ring (20) on the inner wall of drum heated warehouses (19), install on drum heated warehouses (19) top right side three-way pipe (21), the upper right side in outer box (1) is installed in scattered wind storehouse (22), the front end and the rear end in scattered wind storehouse (22) are installed in the front side output and the rear side output of three-way pipe (21) intercommunication respectively, the left side intercommunication in scattered wind storehouse (22) is provided with the platykurtic air exit, the air exit communicates with the inside upper right side in outer box (1), the position of air exit corresponds with the position of multiunit aviation baffle (3).

6. The food drying device of claim 5, further comprising a stirring shaft (23), wherein the stirring shaft (23) is vertically and rotatably installed in the middle of the cylindrical heating chamber (19), and a plurality of groups of arc-shaped stirring plates (24) are uniformly and obliquely arranged on the outer wall of the stirring shaft (23).

7. The food drying device of claim 6, wherein the air exhaust mechanism comprises a water collecting bin (25), an air guide channel (26) and a second air pump (27), two sets of second trachea (28), drain pipe (29) and water valve (30), the bottom left side at outer box (1) is installed in ponding storehouse (25), the left downside and intercommunication each other at ponding storehouse (25) are installed in wind-guiding passageway (26), the upper left side and the outer box (1) bottom left side intercommunication of wind-guiding passageway (26), the upper right side at ponding storehouse (25) is installed in second air pump (27), top and right side at second air pump (27) are installed in the intercommunication respectively in two sets of second trachea (28), second trachea (28) and the inside upside intercommunication in ponding storehouse (25) at second air pump (27) top, the bottom at ponding storehouse (25) is installed in drain pipe (29) intercommunication, water valve (30) are installed on drain pipe (29).

8. The food drying apparatus of claim 7, further comprising a water pressure gauge (31), wherein the water pressure gauge (31) is installed at a lower right side of the sump (25) and communicates with an inside of the sump (25).

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