Thermal cycle drying box and drying method thereof

Abstract

The invention relates to the technical field of drying boxes, and discloses a thermal circulation drying box and a drying method thereof.The thermal circulation drying box comprises a machine box and a heating box, the heating box is fixedly installed on the side wall of the machine box, a storage mechanism is arranged in the machine box, an air guide mechanism is arranged in the machine box, and the storage mechanism comprises a fixing frame and a stand column; a storage screen plate is hinged to the fixing frame through a pin shaft, and a groove is formed in the storage screen plate. A hydraulic oil cylinder is started to push a lifting column to reciprocate, so that the lifting column moves up and down in a stand column, an adjusting plate ascends and descends a rotating roller at one end of a storage net plate, one end of the storage net plate ascends and descends, and the horizontal angle of the storage net plate is adjusted; the material placing angle on the material placing screen plate can be adjusted in an inclined mode, so that the materials are heated more easily, and the material drying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of drying boxes, in particular to a thermal cycle drying box and a drying method thereof. Background Art

[0002] At present, in order to preserve some crops, dry storage is usually adopted. At present, many workshops or self-employed households use ovens to dry crops. The existing ovens adjust the oven temperature by adjusting the oven exhaust volume and setting heaters, so as to achieve the purpose of quickly drying agricultural products.

[0003] According to a Chinese patent with the publication number of "CN219083568U", a negative pressure dehumidification heat cycle drying box belongs to the field of drying boxes and includes a box body. The box body is hollow inside and open at the front. A cabinet door is installed on the front side of the box body through a pin shaft. A circulating fan is arranged on one side of the box body. Tracks are evenly arranged on the inner wall of the box body. When the mesh plate is installed, the internal spring is charged. During the entire drying process, the spring is always in a charged state. When the drying is completed, the restriction on the spring can be released through the internal mechanism, and the mesh plate is ejected outward a certain distance through the pre-charged force of the spring to quickly cool down. When the existing drying boxes are drying materials, it is impossible to adjust the drying angle of the materials, and the wind direction of the hot air is not convenient to adjust, which affects the uniformity of heating of the materials. Therefore, a heat cycle drying box and a drying method thereof are proposed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a heat cycle drying box and a drying method thereof in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a heat cycle drying box, comprising a chassis and a heating box, the heating box is fixedly mounted on the side wall of the chassis, a storage mechanism is arranged inside the chassis, and an air guide mechanism is arranged inside the chassis;

[0006] The storage mechanism comprises a fixed frame and a column, the fixed frame is hinged with a storage mesh plate through a pin shaft, a groove is provided on the storage mesh plate, a rotating roller is rotatably connected inside the groove, a lifting column is plugged inside the column, an adjustment plate is fixedly installed on the lifting column, the rotating roller is in contact with the adjustment plate, and a hydraulic cylinder is fixedly installed at the lower end of the lifting column;

[0007] The air guide mechanism includes a fixed plate and a tooth plate, a bearing is fixedly mounted on the fixed plate, a rotating shaft is fixedly mounted on the inner wall of the inner ring of the bearing, a first air guide plate is fixedly mounted on the rotating shaft, a second air guide plate is fixedly mounted on the rotating shaft, a gear is fixedly mounted on the rotating shaft, the tooth plate is fixedly mounted on the lifting column, and the gear is meshed with the tooth plate.

[0008] Preferably, an air inlet is provided on the inner bottom wall of the chassis, an air outlet is provided on the inner top wall of the chassis, a fan is fixedly installed inside the heating box, an electric heating pipe is fixedly installed inside the heating box, a door is hinged on the front of the chassis, and hot air can be transported to the interior of the chassis by starting the fan and the electric heating pipe.

[0009] Preferably, a first angle plate is fixedly installed on the inner bottom wall of the chassis, a second angle plate is fixedly installed on the inner fixed top wall of the chassis, and the fixing frame is inserted between the first angle plate and the second angle plate. The setting of the first angle plate and the second angle plate can play a role of limiting and fixing the fixing frame.

[0010] Preferably, the column is fixedly installed inside the chassis, a guide rod is fixedly installed on the inner top wall of the column, a guide hole is opened at the upper end of the lifting column, and the lower end of the guide rod is inserted into the guide hole. The setting of the guide rod and the guide hole can play a guiding role for the lifting column.

[0011] Preferably, the fixing plate is fixedly installed inside the chassis, the air guide mechanism is located directly above the air inlet, a hanging rod is fixedly installed on the inner top wall of the chassis, and the hanging rod is located directly below the air outlet. The setting of the hanging rod can conveniently hang the material inside the chassis through the hook for drying.

[0012] Preferably, an air inlet is provided inside the chassis, an air outlet is provided inside the chassis, the air inlet is connected to the heating box, and the air outlet is connected to the upper end of the heating box, and the setting of the air inlet and outlet enables the effect of hot air circulation.

[0013] Preferably, a fixing mechanism is provided on the first angle plate, and the fixing mechanism includes a connecting plate and a positioning column, the positioning column is movably connected to the inside of the connecting plate, a spring plate is fixedly installed on the positioning column, and the connecting plate is fixedly installed on the first angle plate. The setting of the fixing mechanism can facilitate the disassembly and installation of the fixing frame.

[0014] Preferably, a spring is sleeved on the positioning column, one end of the spring abuts against the spring plate, and the other end of the spring abuts against the connecting plate. The setting of the spring can apply pressure to the spring plate so that the positioning column is inserted into the positioning hole.

[0015] Preferably, a positioning hole is provided on the fixing frame, the positioning column is inserted into the positioning hole, and a push handle is fixedly mounted on the spring plate, and the positioning column can be conveniently pushed by the setting of the push handle.

[0016] A drying method for a thermal cycle drying oven, used in a thermal cycle drying oven, comprises the following steps:

[0017] S1. Loading: Open the oven door and spread the materials to be dried on the storage mesh plate, then close the oven door;

[0018] S2, baking: start the fan so that the wind passes through the electric heating tube to be heated and enters the inside of the air inlet duct, and enters the drying space inside the chassis through the air inlet to dry the materials on the storage mesh plate, and then the hot air enters the air outlet through the air outlet and then enters the inside of the heating box for circulating hot air transportation;

[0019] S3. Adjustment of material drying angle and wind direction angle: Start the hydraulic cylinder to push the lifting column to reciprocate, so that the lifting column moves up and down in the column, so that the adjustment plate lifts and lowers one end of the storage mesh plate, so as to adjust the horizontal angle of the storage mesh plate. At the same time, the lifting of the lifting column will drive the lifting of the tooth plate, so that the first air guide plate and the second air guide plate rotate, change the air outlet direction of the air inlet, and make the material dry evenly;

[0020] S4, unloading: turn off the electric heating tube to allow the interior of the chassis to cool down through natural wind circulation. After the cooling is completed, open the door to unload the materials on the storage mesh plate.

[0021] The present invention adopts the above technical solution to bring the following beneficial effects:

[0022] 1. The heat cycle drying box and the drying method thereof, through the coordinated operation among the fixed frame, the storage mesh plate, the column, the hydraulic cylinder, the first angle plate, the second angle plate, the lifting column, the adjustment plate, the guide hole, the guide rod, the groove and the rotating roller, the hydraulic cylinder is started to push the lifting column to reciprocate, so that the lifting column moves up and down in the column, so that the adjusting plate lifts and lowers the rotating roller at one end of the storage mesh plate, so that the one end of the storage mesh plate is lifted and lowered, so as to adjust the horizontal angle of the storage mesh plate, so that the material placement angle on the storage mesh plate can be tilted and adjusted, so that the material is more easily heated, and the material drying efficiency is improved.

[0023] 2. The heat circulation drying box and the drying method thereof cooperate with each other through the operation of the fixed plate, the bearing, the rotating shaft, the first air guide plate, the second air guide plate, the gear and the tooth plate. When the lifting column is raised or lowered, the tooth plate will be driven to move up and down, so that the tooth plate drives the gear to rotate, and the rotating shaft drives the first air guide plate and the second air guide plate to deflect back and forth, thereby changing the air outlet direction of the air inlet, so that the material is evenly dried, and the practicality of the drying box is further improved.

[0024] 3. The heat circulation drying box and the drying method thereof, through the coordinated operation of the connecting plate, the positioning column, the spring plate, the positioning hole, the spring and the push handle, when it is necessary to remove the fixing frame and the storage mesh plate from the inside of the box, the staff pushes the push handle to drive the positioning column to move, so that the positioning column is separated from the positioning hole on the fixing frame. At this time, the fixing frame can be pulled out from between the first angle plate and the second angle plate, which is convenient for disassembly and cleaning of the storage mesh plate. After the fixing frame is removed from the inside of the box, the materials to be hung and dried can be hung on the hanging rod through the hook, so that the conversion between the flat drying mode and the hanging drying mode of the materials can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the storage mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the fixing frame of the present invention;

[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of a column of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the air guide mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the cross-sectional structure of the connecting plate of the present invention.

[0033] In the figure: 1, chassis; 2, storage mechanism; 201, fixed frame; 202, storage mesh plate; 203, column; 204, hydraulic cylinder; 205, first angle plate; 206, second angle plate; 207, lifting column; 208, adjustment plate; 209, guide hole; 210, guide rod; 211, groove; 212, rotating roller; 3, air guide mechanism; 301, fixed plate; 302, bearing; 303, rotating shaft; 304, first air guide plate; 305, second air guide plate; 306, gear; 307, tooth plate; 4, fixing mechanism; 401, connecting plate; 402, positioning column; 403, spring plate; 404, positioning hole; 405, spring; 406, push handle; 5, heating box; 6, fan; 7, electric heating tube; 8, air inlet; 9, air outlet; 10, box door; 11, hanging rod; 12, air inlet duct; 13, air outlet duct. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0038] See also Figure 1-7, one embodiment of the present invention is: a heat cycle drying box, comprising a chassis 1 and a heating box 5, the heating box 5 is fixedly mounted on the side wall of the chassis 1, a storage mechanism 2 is arranged inside the chassis 1, and an air guide mechanism 3 is arranged inside the chassis 1;

[0039] The storage mechanism 2 includes a fixed frame 201 and a column 203. The fixed frame 201 is hinged with a storage mesh plate 202 through a pin shaft. The storage mesh plate 202 is provided with a groove 211. The groove 211 is internally connected to a rotating roller 212. A lifting column 207 is inserted into the column 203. An adjustment plate 208 is fixedly installed on the lifting column 207. The rotating roller 212 contacts the adjustment plate 208. A hydraulic cylinder 204 is fixedly installed at the lower end of the lifting column 207. The hydraulic oil is started. The cylinder 204 pushes the lifting column 207 to reciprocate, so that the lifting column 207 moves up and down in the column 203, so that the adjusting plate 208 lifts and lowers the rotating roller 212 at one end of the storage mesh plate 202, so that the storage mesh plate 202 is lifted and lowered, thereby adjusting the horizontal angle of the storage mesh plate 202, so that the material placement angle on the storage mesh plate 202 can be tilted and adjusted, so that the material is easier to be heated, and the material drying efficiency is improved;

[0040] The air guide mechanism 3 includes a fixed plate 301 and a tooth plate 307. A bearing 302 is fixedly installed on the fixed plate 301. A rotating shaft 303 is fixedly installed on the inner wall of the inner ring of the bearing 302. A first air guide plate 304 is fixedly installed on the rotating shaft 303. A second air guide plate 305 is fixedly installed on the rotating shaft 303. A gear 306 is fixedly installed on the rotating shaft 303. The tooth plate 307 is fixedly installed on the lifting column 207. The gear 306 is meshed with the tooth plate 307. When the lifting column 207 is lifted or lowered, the tooth plate 307 is driven to move up and down, so that the tooth plate 307 drives the gear 306 to rotate, so that the rotating shaft 303 drives the first air guide plate 304 and the second air guide plate 305 to deflect back and forth, thereby changing the air outlet direction of the air inlet 8, so that the material is evenly dried, and the practicality of the drying box is further improved.

[0041] An air inlet 8 is provided on the inner bottom wall of the chassis 1, an air outlet 9 is provided on the inner top wall of the chassis 1, a fan 6 is fixedly installed inside the heating box 5, an electric heating pipe 7 is fixedly installed inside the heating box 5, and a door 10 is hinged on the front of the chassis 1. By starting the fan 6 and the electric heating pipe 7, hot air can be transported to the interior of the chassis 1.

[0042] A first angle plate 205 is fixedly installed on the inner bottom wall of the chassis 1, and a second angle plate 206 is fixedly installed on the inner fixed top wall of the chassis 1. The fixing frame 201 is inserted between the first angle plate 205 and the second angle plate 206. The setting of the first angle plate 205 and the second angle plate 206 can play a role of limiting and fixing the fixing frame 201.

[0043] The column 203 is fixedly installed inside the chassis 1, and a guide rod 210 is fixedly installed on the inner top wall of the column 203. A guide hole 209 is opened at the upper end of the lifting column 207, and the lower end of the guide rod 210 is inserted into the guide hole 209. The setting of the guide rod 210 and the guide hole 209 can guide the lifting column 207.

[0044] The fixing plate 301 is fixedly installed inside the chassis 1, the air guide mechanism 3 is located directly above the air inlet 8, and a hanging rod 11 is fixedly installed on the inner top wall of the chassis 1, and the hanging rod 11 is located directly below the air outlet 9. Through the setting of the hanging rod 11, the material can be conveniently hung inside the chassis 1 through a hook for drying.

[0045] An air inlet 12 is provided inside the chassis 1, and an air outlet 13 is provided inside the chassis 1. The air inlet 12 is connected to the heating box 5, and the air outlet 13 is connected to the upper end of the heating box 5. The setting of the air inlet 12 and the air outlet 13 enables the effect of hot air recycling.

[0046] Working principle: By starting the hydraulic cylinder 204 to push the lifting column 207 to perform reciprocating motion, the lifting column 207 moves up and down in the column 203, so that the adjusting plate 208 lifts and lowers the rotating roller 212 at one end of the storage mesh plate 202, so that one end of the storage mesh plate 202 is lifted and lowered, thereby adjusting the horizontal angle of the storage mesh plate 202, so that the material placement angle on the storage mesh plate 202 can be tilted and adjusted, so that the material is easier to heat. When the lifting column 207 is lifted and lowered, it will drive the tooth plate 307 to move up and down, so that the tooth plate 307 drives the gear 306 to rotate, so that the rotating shaft 303 drives the first air guide plate 304 and the second air guide plate 305 to reciprocate and deflect, change the air outlet direction of the air inlet 8, and make the material dry evenly.

[0047] See also Figure 4 , 8 On the basis of the above embodiment, in another embodiment of the present invention, a fixing mechanism 4 is arranged on the first angle plate 205, and the fixing mechanism 4 includes a connecting plate 401 and a positioning column 402, the positioning column 402 is movably connected to the inside of the connecting plate 401, a spring plate 403 is fixedly installed on the positioning column 402, and the connecting plate 401 is fixedly installed on the first angle plate 205. The setting of the fixing mechanism 4 can facilitate the disassembly and installation of the fixing frame 201.

[0048] A spring 405 is sleeved on the positioning column 402, one end of the spring 405 abuts against the spring plate 403, and the other end of the spring 405 abuts against the connecting plate 401. The setting of the spring 405 can apply pressure to the spring plate 403, so that the positioning column 402 is inserted into the interior of the positioning hole 404.

[0049] The fixing frame 201 is provided with a positioning hole 404 , and the positioning column 402 is inserted into the positioning hole 404 . A push handle 406 is fixedly mounted on the spring plate 403 , and the positioning column 402 can be easily pushed by the push handle 406 .

[0050] Working principle: When it is necessary to remove the fixing frame 201 and the storage mesh plate 202 from the inside of the chassis 1, the staff pushes the push handle 406 to drive the positioning column 402 to move, so that the positioning column 402 is separated from the positioning hole 404 on the fixing frame 201. At this time, the fixing frame 201 can be pulled out from between the first angle plate 205 and the second angle plate 206, which is convenient for disassembly and cleaning of the storage mesh plate 202. After the fixing frame 201 is removed from the inside of the chassis 1, the materials that need to be hung and dried can be hung on the hanging rod 11 through the hook, so that the conversion between the flat drying mode and the hanging drying mode of the materials can be realized.

[0051] A drying method for a thermal cycle drying oven, used in a thermal cycle drying oven, comprises the following steps:

[0052] S1, loading: open the oven door 10 and spread the material to be dried on the storage mesh plate 202, and then close the oven door 10;

[0053] S2, baking: start the fan 6 so that the wind passes through the electric heating tube 7 to be heated and enters the inside of the air inlet 12, and enters the drying space inside the chassis 1 through the air inlet 8 to dry the materials on the storage mesh plate 202, and then the hot air enters the air outlet 13 through the air outlet 9 and then enters the inside of the heating box 5 for circulating hot air transportation;

[0054] S3, material drying angle and wind direction angle adjustment: start the hydraulic cylinder 204 to push the lifting column 207 to reciprocate, so that the lifting column 207 moves up and down in the column 203, so that the adjusting plate 208 lifts and lowers one end of the storage mesh plate 202, so as to adjust the horizontal angle of the storage mesh plate 202. At the same time, the lifting and lowering of the lifting column 207 will drive the lifting and lowering of the tooth plate 307, so that the first air guide plate 304 and the second air guide plate 305 rotate, change the air outlet direction of the air inlet 8, and make the material dry evenly;

[0055] S4, unloading: turn off the electric heating tube 7 to allow the interior of the chassis 1 to cool down through natural wind circulation. After the cooling is completed, open the cabinet door 10 to unload the materials on the storage mesh plate 202.

[0056] The present invention provides a heat cycle drying box and a drying method thereof. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A thermal cycle drying box, comprising a box (1) and a heating box (5), characterized in that: The heating box (5) is fixedly mounted on the side wall of the chassis (1); a storage mechanism (2) is provided inside the chassis (1); and an air guide mechanism (3) is provided inside the chassis (1); The storage mechanism (2) comprises a fixed frame (201) and a column (203); a storage mesh plate (202) is hingedly connected to the fixed frame (201) via a pin shaft; a groove (211) is provided on the storage mesh plate (202); a rotating roller (212) is rotatably connected inside the groove (211); a lifting column (207) is inserted inside the column (203); an adjusting plate (208) is fixedly mounted on the lifting column (207); the rotating roller (212) is in contact with the adjusting plate (208); and a hydraulic cylinder (204) is fixedly mounted on the lower end of the lifting column (207); The air guide mechanism (3) comprises a fixed plate (301) and a tooth plate (307); a bearing (302) is fixedly mounted on the fixed plate (301); a rotating shaft (303) is fixedly mounted on the inner wall of the inner ring of the bearing (302); a first air guide plate (304) is fixedly mounted on the rotating shaft (303); a second air guide plate (305) is fixedly mounted on the rotating shaft (303); a gear (306) is fixedly mounted on the rotating shaft (303); the tooth plate (307) is fixedly mounted on the lifting column (207); and the gear (306) is meshed with the tooth plate (307).

2. A thermal cycle drying oven according to claim 1, characterized in that: The inner bottom wall of the case (1) is provided with an air inlet (8), the inner top wall of the case (1) is provided with an air outlet (9), a fan (6) is fixedly installed inside the heating box (5), an electric heating pipe (7) is fixedly installed inside the heating box (5), and a case door (10) is hinged on the front of the case (1).

3. A thermal cycle drying oven according to claim 1, characterized in that: A first angle plate (205) is fixedly mounted on the inner bottom wall of the chassis (1), a second angle plate (206) is fixedly mounted on the inner fixed top wall of the chassis (1), and the fixing frame (201) is inserted between the first angle plate (205) and the second angle plate (206).

4. A thermal cycle drying oven according to claim 1, characterized in that: The column (203) is fixedly installed inside the chassis (1); a guide rod (210) is fixedly installed on the internal top wall of the column (203); a guide hole (209) is opened at the upper end of the lifting column (207); and the lower end of the guide rod (210) is inserted into the inside of the guide hole (209).

5. A thermal cycle drying oven according to claim 2, characterized in that: The fixing plate (301) is fixedly mounted inside the chassis (1), the air guide mechanism (3) is located directly above the air inlet (8), and a hanging rod (11) is fixedly mounted on the internal top wall of the chassis (1), and the hanging rod (11) is located directly below the air outlet (9).

6. A thermal cycle drying oven according to claim 1, characterized in that: An air inlet duct (12) is provided inside the chassis (1), and an air outlet duct (13) is provided inside the chassis (1); the air inlet duct (12) is connected to the heating box (5), and the air outlet duct (13) is connected to the upper end of the heating box (5).

7. A thermal cycle drying oven according to claim 3, characterized in that: The first angle plate (205) is provided with a fixing mechanism (4), the fixing mechanism (4) comprising a connecting plate (401) and a positioning column (402), the positioning column (402) being movably connected inside the connecting plate (401), a spring plate (403) being fixedly mounted on the positioning column (402), and the connecting plate (401) being fixedly mounted on the first angle plate (205).

8. A thermal cycle drying oven according to claim 7, characterized in that: A spring (405) is sleeved on the positioning column (402), one end of the spring (405) abuts against the spring plate (403), and the other end of the spring (405) abuts against the connecting plate (401).

9. A thermal cycle drying oven according to claim 8, characterized in that: The fixing frame (201) is provided with a positioning hole (404), the positioning column (402) is inserted into the interior of the positioning hole (404), and a push handle (406) is fixedly mounted on the spring plate (403).

10. A drying method for a thermal cycle drying oven, used in a thermal cycle drying oven according to claims 1-9, characterized in that: The following steps are involved: S1, loading: opening the oven door (10) and spreading the materials to be dried on the storage mesh plate (202), and then closing the oven door (10); S2, baking: start the fan (6) so that the wind passes through the electric heating tube (7) to be heated and enters the interior of the air inlet duct (12), and enters the drying space inside the chassis (1) through the air inlet (8) to dry the materials on the storage mesh plate (202), and then the hot air enters the air outlet duct (13) through the air outlet (9) and then enters the interior of the heating box (5) for circulating hot air transportation; S3, material drying angle and wind direction angle adjustment: start the hydraulic cylinder (204) to push the lifting column (207) to reciprocate, so that the lifting column (207) moves up and down in the column (203), so that the adjustment plate (208) lifts and lowers one end of the storage mesh plate (202), so as to adjust the horizontal angle of the storage mesh plate (202). At the same time, the lifting and lowering of the lifting column (207) will drive the lifting and lowering of the tooth plate (307), so that the first air guide plate (304) and the second air guide plate (305) are rotated, and the air outlet direction of the air inlet (8) is changed, so that the material is dried evenly; S4, unloading: the electric heating tube (7) is turned off to allow the interior of the chassis (1) to be cooled by natural air circulation. After the cooling is completed, the cabinet door (10) is opened to unload the materials on the storage mesh plate (202).

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