Elevator matched with grain circulating dryer

Abstract

The utility model provides an elevator matched with a grain circulating dryer for use, which comprises a bearing main body, a support frame arranged at the top of the bearing main body, a hopper arranged at the top of the support frame, an adjusting component arranged outside the hopper and used for adapting to the hardness of different grains, and a buffer component arranged outside the adjusting component, a locking assembly and a transposition assembly are arranged on the front face of each hopper, and an auxiliary assembly is arranged outside each hopper. According to the elevator used in cooperation with the grain circulation dryer, a stable foundation is formed through the bearing body and the supporting frame, and it is guaranteed that grains are lifted stably; the adjusting assembly can adjust the grain sliding angle; the buffering assembly absorbs impact force generated when the grains slide down; the locking assembly cooperates with the transposition assembly, the locking assembly fixes the angle of the adjusting assembly, the transposition assembly adjusts the direction of the adjusting assembly, and the processing requirements of grains with different hardness are effectively met.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator for use with a grain circulating dryer. Background Technology

[0002] The grain circulating dryer elevator is an indispensable piece of equipment in the grain circulating drying system. It can quickly and efficiently lift a large amount of grain to the required height, precisely control the conveying volume to ensure that the grain is evenly distributed and dried stably in the dryer, and work in conjunction with other components such as the dryer and cleaning equipment to realize the automation and continuous grain drying. While improving drying efficiency and ensuring drying quality, it significantly reduces the intensity of manual labor.

[0003] Currently, the feeding hopper on the elevator is a crucial component, playing a vital role in loading grain. After the grain is poured into the hopper, it is transported to a higher position by the elevator. However, different types of grain are prone to breakage during the pouring process due to collisions or violent impacts with the inner wall of the hopper. Damaged grain tends to adhere to the conveying components and inner wall of the elevator, increasing conveying resistance. Furthermore, the debris generated from the breakage exacerbates the wear of moving parts such as chains and bearings, reducing the elevator's conveying efficiency, increasing the frequency of equipment failures, and seriously affecting the stability and continuity of grain drying operations.

[0004] Therefore, it is necessary to provide a hoist for a grain circulating dryer to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides an elevator for a grain circulating dryer, which solves the problems of easy breakage due to collision when grain is poured into the elevator hopper, increased resistance due to grain adhesion, accelerated wear of parts due to debris, and impact on conveying efficiency and drying operation.

[0006] To solve the above-mentioned technical problems, the present invention provides a lifting machine for a grain circulating dryer, comprising: a supporting body, a supporting frame on the top of the supporting body, a hopper on the top of the supporting frame, an adjustment component for adapting to different grain hardnesses on the outside of the hopper, a buffer component on the outside of the adjustment component, a locking component and a rotation component on the front of the hopper, and an auxiliary component on the outside of the hopper.

[0007] Preferably, the adjusting assembly includes an arc-shaped guide structure and a steering rod. The arc-shaped guide structure is symmetrically formed on the inner wall of the hopper. One end of the steering rod is movably connected to the inner wall of the hopper. The steering rod passes through the hopper and extends to its outside. The other end of the steering rod is fixedly connected to a steering gear for power transmission. The outer surface of the steering rod is circumferentially arrayed with several triangular teeth. A guide plate is fixedly connected to the outer surface of the steering rod. A sliding component is slidably connected inside the arc-shaped guide structure. The outer surface of the sliding component is fixedly connected to the inside of the guide plate. The sliding component passes through the guide plate and extends to its outside.

[0008] Preferably, the buffer assembly includes a circular sleeve and an extension rod. The circular sleeve is mounted on the top of the guide plate. An elastic element for providing buffering force is provided inside the circular sleeve. A circular plate is slidably connected inside the circular sleeve. The extension rod is mounted on the top of the circular plate, passes through the circular sleeve and extends to its outside. An energy-absorbing element is fixedly connected to the top of the extension rod.

[0009] Preferably, the locking assembly includes a transverse groove and a driving device. The transverse groove is formed on the front of the hopper, and the driving device is installed on the front of the hopper. A threaded screw is fixedly connected to the output end of the driving device. A displacement block is slidably connected inside the transverse groove. The interior of the displacement block is threadedly connected to the outer surface of the threaded screw. The threaded screw passes through the displacement block and extends to its exterior. A semi-circular tooth is fixedly connected to the exterior of the displacement block.

[0010] Preferably, the indexing assembly includes a mounting frame and a stabilizing block. Both the mounting frame and the stabilizing block are mounted on the front of the hopper. A pushing assembly is fixedly connected to the outside of the mounting frame. A straight tooth is fixedly connected to the output end of the pushing assembly. The outer surface of the straight tooth is slidably connected to the inside of the stabilizing block. The straight tooth penetrates the stabilizing block and extends to its outside. The outer surface of the straight tooth meshes with the outer surface of the steering gear.

[0011] Preferably, the auxiliary components include a guide plate, a bottom box, and an inclined plate. The guide plate is installed on the right side of the inner wall of the hopper, the bottom box is installed at the bottom of the hopper, the inclined plates are symmetrically installed on the inner wall of the hopper, the bottom of the hopper has an outlet, a sliding block is fixedly connected inside the bottom box, a lifting component is fixedly connected to the top of the supporting body, a discharge pipe is fixedly connected to the back of the lifting component, a discharge pipe is fixedly connected to the back of the bottom box, and the other end of the discharge pipe is fixedly connected to the front of the lifting component.

[0012] Preferably, a preheating component is provided on the top of the supporting body. The preheating component includes an air pump and an air supply pipe. The air pump is installed on the top of the supporting body. A heating component is fixedly connected to the top of the supporting body. The output end of the air pump is fixedly connected to the outside of the heating component. The air supply pipe is installed on the top of the heating component. Several air jets are equidistantly arranged on the left side of the hopper. The air jets penetrate the hopper and extend into its interior. A gas distribution box is fixedly connected to the outside of the air jets. The outside of the gas distribution box is fixedly connected to the output end of the air supply pipe.

[0013] Compared with related technologies, the elevator for the grain circulating dryer provided by this utility model has the following beneficial effects:

[0014] This utility model provides a hoist for a grain circulating dryer. The main body and support frame form a stable foundation to ensure stable grain lifting. The adjustment component can adjust the angle of grain sliding. The buffer component absorbs the impact force of grain sliding. The locking component and the indexing component work together, with the former fixing the angle of the adjustment component and the latter adjusting its direction, effectively adapting to the processing needs of grains with different hardness. The auxiliary component optimizes the material conveying path and improves lifting efficiency. All components work together to help the hoist of the grain circulating dryer operate efficiently. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the elevator used in conjunction with the grain circulating dryer provided by this utility model;

[0016] Figure 2 for Figure 1 The front sectional view shown is illustrated.

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0018] Figure 4 for Figure 1 The side sectional view shown is shown below;

[0019] Figure 5 for Figure 1 The diagram shows the internal structure.

[0020] Figure 6 for Figure 1 The diagram shows a partial exploded view of the structure.

[0021] Figure 7 for Figure 6 The enlarged schematic diagram of section B is shown below;

[0022] Figure 8 for Figure 6 The enlarged schematic diagram of section C is shown below;

[0023] Figure 9 for Figure 6 The enlarged schematic diagram of part D is shown.

[0024] The diagram labels are as follows: 1. Load-bearing body; 11. Support frame; 12. Hopper; 2. Adjustment component; 21. Arc-shaped guide; 22. Steering rod; 23. Steering gear; 24. Triangular tooth; 25. Guide plate; 26. Sliding component; 3. Buffer component; 31. Circular sleeve; 32. Extension rod; 33. Elastic element; 34. Circular plate; 35. Energy-absorbing element; 4. Locking component; 41. Cross groove; 42. Drive device; 43. Threaded screw; 44. 45. Displacement block, 56. Semicircular tooth, 57. Indexing assembly, 58. Mounting bracket, 59. Stabilizing block, 50. Pushing assembly, 51. Straight tooth, 62. Auxiliary assembly, 63. Guide plate, 64. Bottom box, 65. Inclined plate, 66. Outlet, 67. Sliding block, 68. Lifting assembly, 69. Discharge pipe, 60. Outlet pipe, 71. Preheating assembly, 72. Air pump, 73. Air supply pipe, 74. Heating assembly, 75. Air distribution box. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 ,in, Figure 1 A schematic diagram of a preferred embodiment of the elevator used in conjunction with the grain circulating dryer provided by this utility model; Figure 2 for Figure 1 The front sectional view shown is illustrated. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 1 The side sectional view shown is shown below; Figure 5 for Figure 1 The diagram shows the internal structure. Figure 6 for Figure 1 The diagram shows a partial exploded view of the structure. Figure 7 for Figure 6 The enlarged schematic diagram of section B is shown below; Figure 8 for Figure 6 The enlarged schematic diagram of section C is shown below; Figure 9 for Figure 6The enlarged schematic diagram of part D is shown. The elevator for the grain circulating dryer includes: a supporting body 1, a support frame 11 on the top of the supporting body 1, a hopper 12 on the top of the support frame 11, an adjustment component 2 for adapting to different grain hardnesses on the outside of the hopper 12, a buffer component 3 on the outside of the adjustment component 2, a locking component 4 and a rotation component 5 on the front of the hopper 12, and an auxiliary component 6 on the outside of the hopper 12.

[0027] The adjustment assembly 2 includes an arc-shaped guide structure 21 and a steering rod 22. The arc-shaped guide structure 21 is symmetrically opened on the inner wall of the hopper 12. One end of the steering rod 22 is movably connected to the inner wall of the hopper 12. The steering rod 22 passes through the hopper 12 and extends to its outside. The other end of the steering rod 22 is fixedly connected to a steering gear 23 for power transmission. The outer surface of the steering rod 22 is circumferentially arrayed with a plurality of triangular teeth 24. A guide plate 25 is fixedly connected to the outer surface of the steering rod 22. A sliding component 26 is slidably connected inside the arc-shaped guide structure 21. The outer surface of the sliding component 26 is fixedly connected to the inside of the guide plate 25. The sliding component 26 passes through the guide plate 25 and extends to its outside.

[0028] The arc-shaped guide structure 21 is symmetrically arranged on the inner wall of the hopper 12 to provide a motion trajectory for the sliding component 26. One end of the steering rod 22 is movably connected to the inner wall of the hopper 12, extends to the outside after passing through the assembly, and the steering gear 23 at the other end is used for power transmission. The triangular teeth 24 on the outer surface facilitate cooperation with the locking assembly 4 to fix the position of the steering rod 22. The guide plate 25 is fixed to the outer surface of the steering rod 22. When the steering rod 22 is rotated, the sliding component 26 is driven to slide in the arc-shaped guide structure 21 through the guide plate 25, thereby realizing the adjustment of the angle of the hopper 12.

[0029] The sliding component 26 includes, but is not limited to, structures such as an angle adjustment lever, a slider, and a slide bar;

[0030] In this embodiment, the sliding component 26 is preferably an angle adjustment rod, which can precisely control the angle adjustment and has high sliding stability within the arc-shaped guide structure 21, thus better realizing the angle adjustment function of the guide plate 25 inside the hopper 12.

[0031] The buffer assembly 3 includes a circular sleeve 31 and an extension rod 32. The circular sleeve 31 is installed on the top of the guide plate 25. An elastic element 33 for providing buffering force is provided inside the circular sleeve 31. A circular plate 34 is slidably connected inside the circular sleeve 31. The extension rod 32 is installed on the top of the circular plate 34. The extension rod 32 passes through the circular sleeve 31 and extends to its outside. An energy-absorbing element 35 is fixedly connected to the top of the extension rod 32.

[0032] The circular sleeve 31 of the buffer assembly 3 is installed on the top of the guide plate 25. The circular sleeve 31 is provided with an elastic element 33 to provide buffering force. The circular plate 34 can slide inside the circular sleeve 31, thereby compressing or releasing the elastic element 33. The extension rod 32 is installed on the top of the circular plate 34 and extends through the circular sleeve 31 to the outside. The energy-absorbing element 35 fixed on its top is responsible for absorbing the impact force from the grain. After absorbing the impact, the force is transmitted to the circular plate 34 through the extension rod 32, causing the circular plate 34 to compress the elastic element 33, thereby achieving buffering of impact and vibration.

[0033] Among them, the energy-absorbing element 35 includes, but is not limited to, elastic rubber sheet, sponge block, and metal honeycomb structure;

[0034] In this embodiment, the energy-absorbing element 35 is preferably an elastic rubber sheet. The elastic rubber sheet is low in cost, easy to install, and allows for the selection of rubber materials with different hardness and elasticity according to actual needs. It can better adapt to the impact force generated when grain is poured in, thus meeting the energy absorption and buffering requirements of the buffer assembly 3.

[0035] The locking assembly 4 includes a transverse groove 41 and a driving device 42. The transverse groove 41 is formed on the front of the hopper 12, and the driving device 42 is installed on the front of the hopper 12. A threaded screw 43 is fixedly connected to the output end of the driving device 42. A displacement block 44 is slidably connected inside the transverse groove 41. The interior of the displacement block 44 is threadedly connected to the outer surface of the threaded screw 43. The threaded screw 43 passes through the displacement block 44 and extends to its exterior. A semi-circular tooth 45 is fixedly connected to the exterior of the displacement block 44.

[0036] The outer surface of the semicircular tooth 45 meshes with the outer surface of the triangular tooth 24.

[0037] When locking is required, the drive unit 42 drives the threaded screw 43 to rotate. Since the displacement block 44 is threadedly connected to the threaded screw 43, the displacement block 44 slides within the transverse groove 41, thereby moving the semi-circular tooth 45. The semi-circular tooth 45 meshes with the triangular tooth 24 on the outer surface of the steering rod 22 in the adjustment assembly 2. When the displacement block 44 moves the semi-circular tooth 45 to a position where it is tightly engaged with the triangular tooth 24, the rotation of the steering rod 22 is restricted, thus locking the guide plate 25. When unlocking is required, the drive unit 42 drives the threaded screw 43 to rotate in the opposite direction. The displacement block 44 slides along the transverse groove 41 away from the triangular tooth 24, causing the semi-circular tooth 45 to separate from the triangular tooth 24. At this time, the adjustment assembly 2 can resume its rotation adjustment function.

[0038] The indexing assembly 5 includes a mounting frame 51 and a stabilizing block 52. Both the mounting frame 51 and the stabilizing block 52 are mounted on the front of the hopper 12. A pushing assembly 53 is fixedly connected to the outside of the mounting frame 51. A straight tooth 54 is fixedly connected to the output end of the pushing assembly 53. The outer surface of the straight tooth 54 is slidably connected to the inside of the stabilizing block 52. The straight tooth 54 penetrates the stabilizing block 52 and extends to its outside. The outer surface of the straight tooth 54 meshes with the outer surface of the steering gear 23.

[0039] The indexing assembly 5 is mounted on the front of the hopper 12 via a mounting bracket 51 and a stabilizing block 52. The mounting bracket 51 is used to fix the push assembly 53, and the stabilizing block 52 provides sliding support for the straight gear 54. The push assembly 53 outputs power to drive the straight gear 54 connected to it to slide within the stabilizing block 52. The straight gear 54 meshes with the outer surface of the steering gear 23. When the straight gear 54 moves, it drives the steering gear 23 to rotate, thereby enabling the guide plate 25, which is fixedly connected to the outer surface of the steering rod 22, to change its angle.

[0040] Among them, the actuating component 53 includes, but is not limited to, electric push rods, cylinders, and hydraulic cylinders;

[0041] In this embodiment, the actuating component 53 is preferably a cylinder. The cylinder operates rapidly, meeting the requirement for quick rotation during the feeding process, and has a simple structure, low cost, and convenient maintenance.

[0042] The auxiliary component 6 includes a guide plate 61, a bottom box 62, and an inclined plate 63. The guide plate 61 is installed on the right side of the inner wall of the hopper 12. The bottom box 62 is installed at the bottom of the hopper 12. The inclined plate 63 is symmetrically installed on the inner wall of the hopper 12. The bottom of the hopper 12 has an outlet 64. A sliding block 65 is fixedly connected inside the bottom box 62. A lifting component 66 is fixedly connected to the top of the supporting body 1. A discharge pipe 67 is fixedly connected to the back of the lifting component 66. A discharge pipe 68 is fixedly connected to the back of the bottom box 62. The other end of the discharge pipe 68 is fixedly connected to the front of the lifting component 66.

[0043] The guide plate 61, installed on the right side of the inner wall of the hopper 12, guides the grain sliding down the guide plate 25 along the inner wall of the hopper 12, preventing the grain from accumulating on one side of the hopper 12. The inclined plate 63, symmetrically installed on the inner wall of the hopper 12, changes the trajectory of the grain, allowing the grain to better converge towards the outlet 64 at the bottom of the hopper 12. Through the outlet 64, the grain flows smoothly into the bottom box 62. The sliding block 65 inside the bottom box 62 causes the grain to accumulate to one side, facilitating a smoother flow of the grain into the discharge pipe 68 on the back of the bottom box 62. The discharge pipe 68 transports the grain to the lifting component 66 at the top of the supporting body 1. The lifting component 66 lifts the grain and finally discharges it through the discharge pipe 67 fixedly connected to its back, completing the entire conveying process.

[0044] A preheating component 7 is provided on the top of the supporting body 1. The preheating component 7 includes an air pump 71 and an air supply pipe 72. The air pump 71 is installed on the top of the supporting body 1. A heating component 73 is fixedly connected to the top of the supporting body 1. The output end of the air pump 71 is fixedly connected to the outside of the heating component 73. The air supply pipe 72 is installed on the top of the heating component 73. Several jet pipes 74 are equidistantly arranged on the left side of the hopper 12. The jet pipes 74 penetrate the hopper 12 and extend into its interior. A gas distribution box 75 is fixedly connected to the outside of the jet pipes 74. The outside of the gas distribution box 75 is fixedly connected to the output end of the air supply pipe 72.

[0045] Air is supplied by an air pump 71 at the top of the supporting body 1, which delivers air to a heating component 73 also installed at the top of the supporting body 1. The air heated by the heating component 73 is then delivered to a gas distribution box 75 through an air delivery pipe 72 at the top. The gas distribution box 75 evenly distributes the hot air into several jet pipes 74 equidistantly arranged on the left side of the hopper 12. The jet pipes 74 penetrate the hopper 12 and spray hot air into it, thereby preheating the grain inside the hopper 12.

[0046] Among them, the heating component 73 includes, but is not limited to, electric heating tube type and heat exchanger type;

[0047] In this embodiment, the heating component 73 is preferably an electric heating tube type. The electric heating tube type heating component 73 has the advantages of rapid heating, high temperature control accuracy, and simple installation and maintenance. It can quickly adjust the preheating temperature according to actual production needs, and its operation is stable and reliable. It can effectively meet the process requirements of preheating materials in the hopper 12, while reducing energy waste.

[0048] The working principle of the elevator for the grain circulating dryer provided by this utility model is as follows: The main support body 1 and the supporting frame 11 form a stable foundation, providing reliable support for the entire elevator and ensuring stability during the grain lifting process. First, before pouring the grain into the hopper 12, the locking component 4 is activated to unlock the adjusting component 2 according to the type of grain. Then, the angle of the adjusting component 2 is changed by the indexing component 5. After adjusting to the appropriate position, the power to the indexing component 5 is turned off, and the locking component 4 is activated again to lock the adjusting component 2. Then, since the buffer component 3 is connected to the adjusting component 2, the change in the position of the adjusting component 2 causes the buffer component 3 to adjust accordingly, enabling it to accurately absorb impact forces during subsequent grain conveying. Simultaneously, the auxiliary component 6 adaptively guides and optimizes the grain flow path. Finally, after completing the above adjustments and preparations, the grain is poured into the hopper 12. Under the synergistic action of all components, the grain is stably and efficiently lifted and conveyed, and the entire elevator for the grain circulating dryer enters a stable working state.

[0049] Compared with related technologies, the elevator for the grain circulating dryer provided by this utility model has the following beneficial effects:

[0050] This utility model provides a hoist for a grain circulating dryer. The main body 1 and the support frame 11 form a stable foundation to ensure stable grain lifting. The adjustment component 2 can adjust the angle of grain sliding. The buffer component 3 absorbs the impact force of grain sliding. The locking component 4 and the indexing component 5 cooperate, with the former fixing the angle of the adjustment component 2 and the latter adjusting its direction, effectively adapting to the processing needs of grains with different hardness. The auxiliary component 6 optimizes the material conveying path and improves lifting efficiency. All components work together to help the hoist of the grain circulating dryer operate efficiently.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hoist for use with a grain circulating dryer, characterized in that, include: The main body is equipped with a support frame on its top, a hopper on the top of the support frame, an adjustment component for adapting to different grain hardnesses on the outside of the hopper, a buffer component on the outside of the adjustment component, a locking component and a rotation component on the front of the hopper, and auxiliary components on the outside of the hopper.

2. The elevator for use with the grain circulating dryer according to claim 1, characterized in that, The adjustment assembly includes an arc-shaped guide structure and a steering rod. The arc-shaped guide structure is symmetrically formed on the inner wall of the hopper. One end of the steering rod is movably connected to the inner wall of the hopper. The steering rod passes through the hopper and extends to its outside. The other end of the steering rod is fixedly connected to a steering gear for power transmission. The outer surface of the steering rod is circumferentially arrayed with several triangular teeth. A guide plate is fixedly connected to the outer surface of the steering rod. A sliding component is slidably connected inside the arc-shaped guide structure. The outer surface of the sliding component is fixedly connected to the inside of the guide plate. The sliding component passes through the guide plate and extends to its outside.

3. The elevator for use with the grain circulating dryer according to claim 1, characterized in that, The buffer assembly includes a circular sleeve and an extension rod. The circular sleeve is mounted on the top of the guide plate. An elastic element for providing buffering force is provided inside the circular sleeve. A circular plate is slidably connected inside the circular sleeve. The extension rod is mounted on the top of the circular plate, passes through the circular sleeve and extends to its outside. An energy-absorbing element is fixedly connected to the top of the extension rod.

4. The elevator for use with the grain circulating dryer according to claim 1, characterized in that, The locking assembly includes a transverse groove and a driving device. The transverse groove is opened on the front of the hopper, and the driving device is installed on the front of the hopper. A threaded screw is fixedly connected to the output end of the driving device. A displacement block is slidably connected inside the transverse groove. The inside of the displacement block is threadedly connected to the outer surface of the threaded screw. The threaded screw passes through the displacement block and extends to its outside. A semi-circular tooth is fixedly connected to the outside of the displacement block.

5. The elevator for use with the grain circulating dryer according to claim 1, characterized in that, The indexing assembly includes a mounting frame and a stabilizing block. Both the mounting frame and the stabilizing block are mounted on the front of the hopper. A pushing assembly is fixedly connected to the outside of the mounting frame. A straight tooth is fixedly connected to the output end of the pushing assembly. The outer surface of the straight tooth is slidably connected to the inside of the stabilizing block. The straight tooth penetrates the stabilizing block and extends to its outside. The outer surface of the straight tooth meshes with the outer surface of the steering gear.

6. The elevator for use with the grain circulating dryer according to claim 1, characterized in that, The auxiliary components include a guide plate, a bottom box, and an inclined plate. The guide plate is installed on the right side of the inner wall of the hopper, the bottom box is installed at the bottom of the hopper, the inclined plates are symmetrically installed on the inner wall of the hopper, and the bottom of the hopper has an outlet. A sliding block is fixedly connected inside the bottom box. A lifting component is fixedly connected to the top of the supporting body, a discharge pipe is fixedly connected to the back of the lifting component, and a discharge pipe is fixedly connected to the back of the bottom box. The other end of the discharge pipe is fixedly connected to the front of the lifting component.

7. The elevator for use with the grain circulating dryer according to claim 1, characterized in that, A preheating component is provided on the top of the supporting body. The preheating component includes an air pump and an air supply pipe. The air pump is installed on the top of the supporting body. A heating component is fixedly connected to the top of the supporting body. The output end of the air pump is fixedly connected to the outside of the heating component. The air supply pipe is installed on the top of the heating component. Several air jets are equidistantly arranged on the left side of the hopper. The air jets penetrate the hopper and extend into its interior. A gas distribution box is fixedly connected to the outside of the air jets. The outside of the gas distribution box is fixedly connected to the output end of the air supply pipe.

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