Hot air drying / baking device suitable for irregular blocky substances

Abstract

The utility model discloses a hot air drying / baking device suitable for irregular blocky materials. The hot air drying / baking device comprises a hot air drying / baking device box. Wherein the screen drum is horizontally and transversely placed in the middle of the hot air drying / baking device box, and the outer wall of the screen drum is a stainless steel screen which is rolled into a drum shape; the front end and the middle end of the central rotating shaft are hollow stainless steel pipes; an air inlet at the front end of the central rotating shaft is connected with an air inlet pipe embedded into the box body through a connecting bearing; small air outlet holes are distributed in the part, inserted into the screen drum, of the middle end of the central rotating shaft; a solid stainless steel pipe at the rear end of the central rotating shaft is connected with a transmission chain in the box body. When the hot air circulating fan is started, generated hot air can form two hot air flows in the circulating fan pipeline, one hot air flow enters the hot air drying / baking device box from the air inlet, and the other hot air flow enters the screen roller; therefore, the irregular blocky materials in the roller can be completely and quickly dried / baked from inside to outside.

Description

Technical Field

[0001] The utility model relates to the technical field of drying / baking devices, and more specifically to a hot air drying / baking device specially suitable for irregular block materials. Background Art

[0002] Drying is the process of vaporizing moisture (water or other solvents) in wet materials using heat and removing the vaporized moisture using airflow or vacuum, thereby drying the material. Baking is the process of dehydrating, drying, and hardening the material by applying dry heat below the material's ignition point. The principles of drying and baking are essentially the same, and the equipment for both is generally interchangeable.

[0003] In actual drying and baking processes, the objects often involved are irregularly shaped and lumpy materials of varying sizes, such as pieces of meat with bones or various shapes. These irregular lumps are extremely difficult to dry or bake, as it is almost impossible to ensure that every irregular surface receives sufficient and uniform heat.

[0004] If commercially available hot air drying / baking devices are used, it is often necessary to use tools such as clamps and manually tumble these irregular block materials repeatedly. This traditional processing method requires a lot of manpower when dealing with large quantities of irregular block materials, resulting in huge labor costs. At the same time, although tools such as clamps can be used, operators still have the opportunity to come into contact with heat sources during the tumbling process, making it difficult to fully guarantee their safety. Utility Model Content

[0005] The purpose of the present invention is to provide a hot air drying / baking device suitable for irregular block materials to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The invention comprises a hot air drying / baking device box (8), a screen drum (14) horizontally placed in the middle position inside the hot air drying / baking device box (8), the outer wall of the screen drum (14) is a stainless steel screen rolled into a drum shape, and the two ends are respectively closed by two stainless steel side plates (20), each side plate is punched in the middle, and a central shaft (17) is inserted and welded fixed; the front end and the middle end of the central shaft (17) are both hollow stainless steel tubes, and the air inlet (32) at the front end of the central shaft is connected to the air inlet pipe (12) embedded in the box body through a connecting bearing (19); the part of the central shaft (17) inserted into the screen drum (14) is distributed with a plurality of air outlet holes (33); the solid stainless steel tube (34) at the rear end of the central shaft is connected to the transmission chain (7) inside the box body; the transmission chain (7) is driven by a rotating motor (6).

[0008] As a further solution of the present invention, a movable cover plate (15) is provided on the circumferential surface of the screen drum (14), and a cover plate lock (18) is provided on the movable cover plate (15) to facilitate the loading of irregular block materials before drying / baking and the removal of irregular block materials after drying / baking.

[0009] As a further solution of the present invention: the connecting bearing (19) includes a bearing inner ring (35), a bearing outer ring (36) and bearing balls (37); wherein the bearing inner ring (35) is connected to the air inlet pipe (12) embedded in the box body, and the bearing outer ring (36) is connected to the air inlet (32) at the front end of the central rotating shaft; the bearing balls (37) play a lubricating role, ensuring that the screen drum (14) and the central rotating shaft (17) roll smoothly in the hot air drying / baking device box (8).

[0010] As a further solution of the present invention, it also includes a hot air circulation unit, which includes a hot air circulation fan (1). One path of air from the hot air circulation fan (1) enters the central rotating shaft (17) through the air inlet pipe (12) embedded in the box body, and then enters the inside of the screen drum (14) from the central rotating shaft (17). Another path of air enters the gap between the inside of the hot air drying / baking device box (8) and the outside of the screen drum (14) through the air inlet (13) on the outer wall of the hot air drying / baking device box (8). The two paths of air are then output to the outside of the hot air drying / baking device box (8) or circulated through the circulation fan pipeline (5).

[0011] As a further solution of the present invention: the device box door adopts a double-door structure, including a left-opening box door (9) and a right-opening box door (23), so as to facilitate the loading of irregular block materials into the screen drum (14) before drying / baking and the removal of irregular block materials from the screen drum (14) after drying / baking; the left observation port (10) and the right observation port (24) are respectively located at the center of the left-opening box door (9) and the right-opening box door (23), so as to facilitate the observation of the drying / baking conditions of the irregular block materials in the screen drum (14); the left-opening box door (9) and the right-opening box door (23) are respectively provided with a left door buckle (11) and a right door buckle (25).

[0012] As a further solution of the present invention: the temperature monitoring probe (21) is located at the diagonal position of the box body farthest from the air inlet (13) so as to accurately measure the internal temperature of the hot air drying / baking device box (8).

[0013] As a further solution of the utility model: it also includes a device controller (26).

[0014] As a further solution of the present invention, the device controller (26) includes a device control panel (27), a device controller keyboard (28), a device controller brake pulley (29), a device controller switch (30), and a device control electric signal transmission line (31). The device controller (26) controls the operation of the hot air drying / baking device box (8) through the device control electric signal transmission line (31).

[0015] As a further solution of the present invention: the device control panel (27) is a touch screen, including a "heating temperature" column, a "heating time" column, a "scrolling speed" column, a "start heating" menu, a "start cooling" menu, a "counterclockwise scrolling" menu, a "clockwise scrolling" menu, a "start fan" menu, and a "stop fan" menu. The device controller keyboard (28) below the device control panel (27) can be used to input specific values of the "heating temperature", "heating time" and "scrolling speed".

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model provides a hot air drying / baking device suitable for irregular bulk materials. Unlike previous patents and common hot air drying ovens or ovens on the market, this device is a special drying / baking device tailored for irregular bulk materials. The outer wall of the specially designed drum is made of stainless steel mesh, which allows the hot air of the device to quickly enter the drum, placing the material in the drum in a hot air bath. During the actual drying / baking process, the mesh drum continuously rolls, causing the irregular bulk material contained therein to tumble, ensuring that each irregular surface of the irregular bulk material is fully and evenly heated and baked in the hot air bath, ensuring that the moisture of the material in the drum is quickly removed from the box system, and achieving rapid drying of the material.

[0018] 2. The utility model provides a hot air drying / baking device suitable for irregular block materials. When the hot air circulation fan is in operation, the hot air generated will form two hot air flows in the circulation fan pipeline. One hot air flow enters the hot air drying / baking device box from the air inlet, and the other hot air flow passes through the air inlet pipe embedded in the inside of the box, through the air inlet and air outlet holes at the front end of the central rotating shaft, and enters the screen drum; thus, the irregular block materials in the drum are dried / baked completely and quickly from the inside to the outside.

[0019] 3. The utility model provides a hot air drying / baking device suitable for irregular block materials. A special connecting bearing is used to connect the air inlet pipe embedded in the box and the central rotating shaft. With the lubrication effect of the bearing balls in the connecting bearing, the screen roller and the central rotating shaft can be ensured to roll smoothly in the hot air drying / baking device box. In addition, the utility model adopts a method in which the inner ring of the bearing is connected to the air inlet pipe embedded in the box, and the outer ring of the bearing is connected to the air inlet at the front end of the central rotating shaft. Since the hot air flow generated by the operation of the hot air circulation fan will reach the air inlet pipe embedded in the box in advance, due to the heat conduction effect between iron objects and the physical effect of thermal expansion and contraction, the inner ring of the bearing connected to the air inlet pipe embedded in the box will expand slightly, while the outer ring of the bearing connected to the air inlet at the front end of the central rotating shaft will remain unchanged. This makes it difficult for the bearing balls between the inner ring and the outer ring of the bearing to fall off, making the structure of the entire connecting bearing more solid, which can further ensure the smooth rolling of the screen roller and the central rotating shaft in the hot air drying / baking device box.

[0020] 4. The utility model provides a hot air drying / baking device suitable for irregular block materials. Unlike common baking equipment on the market that requires operators to manually and repeatedly roll irregular block materials using clamps and other tools, the utility model completely isolates the operator from the drying / baking heat source: when the irregular block materials are loaded into the screen drum, the hot air drying / baking device has not yet started the heat source; and when the dried / baked irregular block materials are taken out of the screen drum, the heat source of the hot air drying / baking device has already been turned off and cooled down. Therefore, the utility model is a special drying / baking device tailored for operator safety.

[0021] 5. This utility model provides a hot air drying / baking device suitable for irregular bulk materials. Except for the steps of loading and recovering the irregular bulk materials, which only require one operator, the rest of the process is machine-operated. This makes it particularly suitable for drying / baking large quantities of irregular bulk materials, thereby reducing significant labor costs. Therefore, this utility model is an advanced drying / baking device suitable for large-scale industrial production.

[0022] 6. The utility model provides a hot air drying / baking device suitable for irregular block materials. Different from previous baking equipment, the whole set of equipment has a high degree of scientific automation. Various parameters such as the rolling speed of the drum, heating temperature, heating time, etc. can be input on the controller host to obtain different drying / baking results. This helps to obtain the optimal drying / baking process parameters and achieve the best drying / baking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a structural schematic diagram of a hot air drying / baking device suitable for irregular block materials in the present invention.

[0025] Figure 2 Schematic diagram of the structure of the central shaft.

[0026] Figure 3 Schematic diagram of the structure of the connecting bearing

[0027] Figure 4 A schematic diagram of the device controller panel.

[0028] In the figure, 1. hot air circulation fan; 2. exhaust vent; 3. exhaust vent control valve; 4. circulation fan pipeline control valve; 5. circulation fan pipeline; 6. rotating motor; 7. transmission chain inside the box; 8. hot air drying / baking device box; 9. left opening door; 10. left observation port; 11. left door buckle; 12. air inlet pipe embedded in the box; 13. air inlet; 14. screen drum; 15. movable cover; 16. air outlet; 17. center shaft; 18. cover lock; 19. connecting bearing; 20. Stainless steel side panels; 21. Temperature monitoring probe; 22. Device column foot; 23. Right opening door; 24. Right observation port; 25. Right door buckle; 26. Device controller; 27. Device control panel; 28. Device controller keyboard; 29. Device controller brake pulley; 30. Device controller switch; 31. Device control electrical signal transmission line; 32. Air inlet at the front end of the central shaft; 33. Air outlet hole; 34. Solid stainless steel tube at the rear end of the central shaft; 35. Bearing inner ring; 36. Bearing outer ring; 37. Bearing ball. DETAILED DESCRIPTION

[0029] The following embodiments are combined with the accompanying drawings to describe the present invention in detail. In actual application, the shape, thickness or height of each component may be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0030] Example 1

[0031] See also Figure 1 and Figure 2 A hot air drying / baking device suitable for irregular block materials, comprising a hot air drying / baking device box 8 and a device controller 26. The hot air drying / baking device box 8 is a box structure with a door on the front. The screen drum 14 is horizontally placed in the middle position inside the hot air drying / baking device box 8. The outer wall of the screen drum 14 is a stainless steel screen rolled into a drum shape, and the two ends are respectively closed by two stainless steel side panels 20. Each side panel has a hole in the middle, and a central shaft 17 is inserted and welded; the front end and middle end of the central shaft 17 are hollow stainless steel tubes, and the front end of the central shaft 17 (i.e. Figure 1 or Figure 2The air inlet 32 (at the left end) is connected to the air inlet pipe 12 embedded in the housing via a connecting bearing 19. The middle end of the central rotating shaft 17, which is inserted into the screen drum 14, is covered with air outlet holes 33. A solid stainless steel tube 34 at the rear end of the central rotating shaft is connected to the transmission chain 7 inside the housing. This transmission connection can be any method known in the art, for example, a gear is provided on the solid stainless steel tube 34, and the teeth of the gear mesh with the transmission chain 7 to form a chain drive. Another portion of the transmission chain 7 is connected to the output shaft of the transmission motor 6. During operation, the rotating motor 6 drives the screen drum 14 and the central rotating shaft 17 to rotate counterclockwise / clockwise within the hot air drying / baking device housing 8 via the transmission chain 7 inside the housing.

[0032] See also Figure 1 The screen drum 14 is provided with a movable cover 15 on the circumferential surface, and the movable cover 15 is provided with a cover lock 18 to facilitate the filling of irregular block materials before drying / baking and the removal after drying / baking.

[0033] See also Figure 3 The connecting bearing 19 includes a bearing inner ring 35, a bearing outer ring 36 and bearing balls 37; wherein the bearing inner ring 35 is connected to the air inlet pipe 12 embedded in the box body, and the bearing outer ring 36 is connected to the air inlet 32 at the front end of the central rotating shaft; the bearing balls 37 play a lubricating role to ensure that the screen drum 14 and the central rotating shaft 17 roll smoothly in the hot air drying / baking device box 8.

[0034] See also Figure 1 The hot air circulation fan 1, the exhaust port 2, the exhaust port control valve 3, the circulation fan pipeline control valve 4, the circulation fan pipeline 5, the air inlet pipe 12 embedded in the box body, the air inlet 13, and the air outlet 16 together constitute the hot air circulation unit of the hot air drying / baking device box 8. The air enters from the hot air circulation fan 1, then enters the central rotating shaft 17 through the air inlet pipe 12 embedded in the box body, and then enters the interior of the screen drum 14 through the central rotating shaft 17. Another path passes through the air inlet 13 on the outer wall of the hot air drying / baking device box 8 and enters the gap between the inside of the hot air drying / baking device box 8 and the outside of the screen drum 14. The hot air from these two paths is then output from the hot air drying / baking device box 8 through the circulation fan pipeline 5, or circulated through the circulation fan pipeline control valve 4.

[0035] See also Figure 1The device door adopts a double-door structure on the front, including a left door 9 and a right door 23, so as to facilitate the loading of irregular block materials into the screen drum 14 before drying / baking and the removal of irregular block materials from the screen drum 14 after drying / baking; the left observation port 10 and the right observation port 24 are respectively located at the center of the left door 9 and the right door 23, so as to facilitate the observation of the drying / baking conditions of the irregular block materials in the screen drum 14; the left door 9 and the right door 23 are respectively provided with a left door buckle 11 and a right door buckle 25.

[0036] See also Figure 1 The temperature monitoring probe 21 is located at the diagonal position of the box body farthest from the air inlet 13, so as to accurately measure the internal temperature of the hot air drying / baking device box 8.

[0037] See also Figure 1 The device controller 26 includes a device control panel 27, a device controller keyboard 28, a device controller brake pulley 29, a device controller switch 30, and a device control electric signal transmission line 31. The device controller 26 controls the operation of the hot air drying / baking device box 8 through the device control electric signal transmission line 31.

[0038] See also Figure 4 The device control panel 27 is a touch screen, including a "heating temperature" column, a "heating time" column, a "scrolling speed" column, a "start heating" menu, a "start cooling" menu, a "counterclockwise scrolling" menu, a "clockwise scrolling" menu, a "start fan" menu, and a "stop fan" menu. The device controller keyboard (28) below the device control panel (27) can be used to input specific values of the "heating temperature", "heating time" and "scrolling speed".

[0039] The use of this utility model is as follows:

[0040] Before drying / baking, first open the left and right doors 9 and 23, then open the movable cover (15) and cover lock 18 of the screen drum 14, and fill the irregular block material into the screen drum 14, then close the movable cover 15 and cover lock 18, then close the left and right doors 9 and 23, as well as the circulation fan pipeline control valve 4, and open the exhaust outlet control valve 3.

[0041] Turn on the device controller switch 30, click the "Heating Temperature" and "Heating Time" columns on the device control panel 27 in sequence, enter the specific "Heating Temperature" and "Heating Time" values in sequence through the device controller keyboard 28 below, and then click the "Start Heating" and "Start Fan" menus in sequence to start the hot air circulation fan 1. The hot air generated thereby forms two hot air flows in the circulation fan pipe 5. One hot air flow enters the hot air drying / baking device box 8 from the air inlet 13, and the other hot air flow passes through the air inlet embedded in the box body. Tube 12, through the air inlet 32 and the air outlet hole 33 at the front end of the central shaft, enters the screen drum 14; next; click the "Scrolling Speed" column, enter the specific "Scrolling Speed" value through the device controller keyboard 28 below, and then click the "Counterclockwise Scroll" menu to start the rotating motor 6, and drive the screen drum 14 to scroll counterclockwise in the hot air drying / baking device box 8 through the transmission chain 7 inside the box body connected to the solid stainless steel tube 34 at the rear end of the central shaft, and start the hot air drying / baking process for irregular block materials.

[0042] When the set heating time is reached, hot air circulation fan 1 stops heating, and hot air drying / baking device box 8 begins to automatically cool down. When the temperature of screen drum 14 drops to a level that can be touched by human hands, the "Fan Off" menu is clicked, and the movable cover 15 and cover lock 18 of screen drum 14 are opened. The operator, wearing gloves, removes the dried / baked irregular lumps from screen drum 14 and collects them. Finally, the device controller switch 30, the movable cover 15 and cover lock 18 of screen drum 14 are closed, and the hot air drying / baking process ends.

[0043] or

[0044] Before drying / baking, first open the left and right doors 9 and 23, then open the movable cover (15) and cover lock 18 of the screen drum 14, and fill the irregular block material into the screen drum 14, then close the movable cover 15 and cover lock 18, then close the left and right doors 9 and 23, as well as the circulation fan pipeline control valve 4, and open the exhaust outlet control valve 3.

[0045] Turn on the device controller switch 30, click the "Heating Temperature" and "Heating Time" columns on the device control panel 27 in turn, enter the specific "Heating Temperature" and "Heating Time" values in turn through the device controller keyboard 28 below, and then click the "Start Heating" and "Start Fan" menus in turn to start the hot air circulation fan 1; next; click the "Scroll Speed" column, enter the specific "Scroll Speed" value through the device controller keyboard 28 below, and then click the "Counterclockwise Scroll" menu to start the rotating motor 6, and drive the screen drum 14 to roll counterclockwise in the hot air drying / baking device box 8 through the transmission chain 7 inside the box body connected to the solid stainless steel tube 34 at the rear end of the central shaft, and start the hot air drying / baking program for irregular block materials.

[0046] After a while, if the irregular lumps are found to be substantially dried / baked through the left and right viewing ports 10 and 24 in the center of the left and right doors 9 and 23, the "Start Cooling" menu is clicked, causing the hot air circulation fan 1 to stop heating and the hot air drying / baking device box 8 to begin cooling. Once the temperature of the screen drum 14 drops to a level that is comfortable for human hands, the "Switch Fan Off" menu is clicked, opening the movable cover 15 and cover latch 18 of the screen drum 14. The operator, wearing gloves, removes the dried / baked irregular lumps from the screen drum 14 and collects them. Finally, the device controller switch 30, the movable cover 15 and cover latch 18 of the screen drum 14 are turned off, ending the hot air drying / baking process.

[0047] Or

[0048] Before drying / baking, first open the left door 9 and the right door 23, then open the movable cover 15 and the cover lock 18 of the screen drum 14, and fill the irregular block material into the screen drum 14, then close the movable cover 15 and the cover lock 18, and then close the left door 9 and the right door 23, as well as the circulation fan pipeline control valve 4, and open the exhaust outlet control valve 3.

[0049] Turn on the device controller switch 30, click the "Heating Temperature" and "Heating Time" columns on the device control panel 27 in turn, enter the specific "Heating Temperature" and "Heating Time" values in turn through the device controller keyboard 28 below, and then click the "Start Heating" and "Start Fan" menus in turn to start the hot air circulation fan 1; next; click the "Scroll Speed" column, enter the specific "Scroll Speed" value through the device controller keyboard 28 below, and then click the "Counterclockwise Scroll" menu to start the rotating motor 6, and drive the screen drum 14 to roll counterclockwise in the hot air drying / baking device box 8 through the transmission chain 7 inside the box body connected to the solid stainless steel tube 34 at the rear end of the central shaft, and start the hot air drying / baking program for irregular block materials.

[0050] When the set heating time is reached, the hot air circulation fan 1 stops heating and the hot air drying / baking device box 8 starts to automatically cool down. When the temperature of the screen drum 14 drops to a temperature that can be touched by human hands, the "Shut down fan" menu is clicked, the movable cover 15 and the cover lock 18 of the screen drum 14 are opened, and the operator wearing gloves takes out the dried / baked irregular block materials from the screen drum 14 and collects them.

[0051] If it is found that the irregular block material dried / baked for the first time does not achieve the ideal effect, the irregular block material dried / baked for the first time is put back into the screen drum 14, the movable cover 15 and the cover lock 18 are closed, and then the left opening door 9 and the right opening door 23 are closed; click the "Heating Temperature" and "Heating Time" columns on the device control panel 27 in turn, and enter the specific "Heating Temperature" and "Heating Time" values in turn through the device controller keyboard 28 below, and then click the "Start Heating" and "Start Fan" menus in turn to start the hot air circulation fan 1; next; click the "Scroll Speed" column, enter the specific "Scroll Speed" value through the device controller keyboard 28 below, and then click the "Clockwise Scroll" menu to start the rotating motor 6, and drive the screen drum 14 to scroll clockwise in the hot air drying / baking device box 8 through the transmission chain 7 inside the box body connected to the solid stainless steel tube 34 at the rear end of the central shaft, and start the hot air drying / baking program for irregular block materials.

[0052] When the set heating time is reached, hot air circulation fan 1 stops heating, and hot air drying / baking device box 8 begins to automatically cool down. When the temperature of screen drum 14 drops to a level that can be touched by human hands, the "Fan Off" menu is clicked, and the movable cover 15 and cover lock 18 of screen drum 14 are opened. The operator, wearing gloves, removes the dried / baked irregular lumps from screen drum 14 and collects them. Finally, the device controller switch 30, the movable cover 15 and cover lock 18 of screen drum 14 are closed, and the hot air drying / baking process ends.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hot air drying / baking device suitable for irregular block materials, characterized by: The invention comprises a hot air drying / baking device box (8), a screen drum (14) horizontally placed in the middle position inside the hot air drying / baking device box (8), the outer wall of the screen drum (14) is a stainless steel screen rolled into a drum shape, and the two ends are respectively closed by two stainless steel side plates (20), each side plate is punched in the middle, and a central shaft (17) is inserted and welded fixed; the front end and the middle end of the central shaft (17) are hollow stainless steel tubes, and the air inlet (32) at the front end of the central shaft is connected to the air inlet pipe (12) embedded in the box body through a connecting bearing (19); the part of the central shaft (17) inserted into the screen drum (14) is provided with a plurality of air outlet holes (33); the solid stainless steel tube (34) at the rear end of the central shaft is connected to the transmission chain (7) inside the box body; the transmission chain (7) is driven by a rotating motor (6).

2. A hot air drying / baking device suitable for irregular block materials according to claim 1, characterized in that: A movable cover plate (15) is provided on the circumferential surface of the screen drum (14), and a cover plate lock buckle (18) is provided on the movable cover plate (15).

3. The hot air drying / baking device for irregular block materials according to claim 1, characterized in that: The connecting bearing (19) includes a bearing inner ring (35), a bearing outer ring (36) and bearing balls (37); wherein the bearing inner ring (35) is connected to the air inlet pipe (12) embedded in the box body, and the bearing outer ring (36) is connected to the air inlet (32) at the front end of the central shaft.

4. The hot air drying / baking device for irregular block materials according to claim 1, characterized in that: The hot air circulation unit includes a hot air circulation fan (1), wherein the air of the hot air circulation fan (1) enters the central rotating shaft (17) through the air inlet pipe (12) embedded in the box body, and then enters the inside of the screen drum (14) from the central rotating shaft (17); the other air enters the gap between the inside of the hot air drying / baking device box (8) and the outside of the screen drum (14) through the air inlet (13) on the outer wall of the hot air drying / baking device box (8), and the two air flows are then output to the outside of the hot air drying / baking device box (8) through the circulation fan pipeline (5).

5. The hot air drying / baking device for irregular block materials according to claim 4, characterized in that: A temperature monitoring probe (21) is provided at a diagonal position of the box body farthest from the outer wall air inlet (13).

6. The hot air drying / baking device for irregular block materials according to claim 1, characterized in that: The door of the hot air drying / baking device box (8) adopts a double-door structure, including a left-opening box door (9) and a right-opening box door (23); the left observation port (10) and the right observation port (24) are respectively located at the center of the left-opening box door (9) and the right-opening box door (23); the left-opening box door (9) and the right-opening box door (23) are respectively provided with a left door buckle (11) and a right door buckle (25).

7. A hot air drying / baking device suitable for irregular block materials according to any one of claims 1 to 6, characterized in that: Also included is a device controller (26).

8. The hot air drying / baking device for irregular block materials according to claim 7, characterized in that: The device controller (26) includes a device control panel (27), a device controller keyboard (28), a device controller brake pulley (29), a device controller switch (30) and a device control electric signal transmission line (31).

9. The hot air drying / baking device for irregular block materials according to claim 8, characterized in that: The device control panel (27) is a touch screen, including a "heating temperature" column, a "heating time" column, a "scrolling speed" column, a "start heating" menu, a "start cooling" menu, a "counterclockwise scrolling" menu, a "clockwise scrolling" menu, a "start fan" menu, and a "stop fan" menu; the device controller keyboard (28) below the device control panel (27) can input specific values of the "heating temperature", "heating time" and "scrolling speed".

Images