Device and method for uniformly distributing materials in sleeve kiln

Abstract

The invention relates to the field of sleeve kilns, and discloses a device and method for evenly distributing materials in a sleeve kiln, the device comprises a kiln body feeding port, the top end of the kiln body feeding port is fixedly connected with a gear ring frame, the top end of the gear ring frame is fixedly connected with a driving motor, and an output shaft of the driving motor is fixedly connected with a rotating shaft downwards; a gear ring is movably connected into the gear ring frame, the bottom end of the rotating shaft is movably sleeved with a swing arm, the other end of the swing arm is rotationally connected with a gear, the bottom end of the gear is rotationally connected with a shifting rod, and the top of the kiln body feeding opening is movably connected with a rotating disc. According to the uniform material distribution device in the sleeve kiln and the material distribution method, the driving motor is arranged, and the material distribution direction is continuously adjusted, so that the material can be uniformly laid in the feeding opening of the kiln body, and the heating uniformity of the material in the sleeve kiln and the overall utilization efficiency of the kiln body are improved; the problems of non-uniform heat exchange and poor calcining effect caused by concentrated accumulation of materials are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sleeve kiln, in particular to a sleeve kiln material uniform distribution device and distribution method. BACKGROUND

[0002] The sleeve kiln is a high-temperature calcination equipment commonly used in the metallurgical, building material and other industries, which is usually used for continuous sintering, roasting or calcination of materials such as ores, refractory materials and cement clinker. The sleeve kiln has a large top and a small bottom, and the internal material is heated by a burner. The sleeve kiln has the advantages of rapid heating, low energy consumption and high thermal efficiency.

[0003] The sleeve kiln burns materials such as ores, alumina raw materials and refractory aggregates, which are granular or blocky substances with uniform particle size. It is required to form a uniform and dense material bed during calcination to ensure uniform heat transfer and improve the physical properties and chemical stability of the calcined products.

[0004] Currently, the common sleeve kiln material distribution generally uses a fixed hopper or a simple chute structure for feeding. However, there are some defects, such as: the material is concentrated and freely falls from a high place into the kiln body, which is easy to cause local accumulation, resulting in uneven distribution of the material in the kiln, causing local overburning or underburning, affecting the product quality; the material is easily broken during the falling process, producing dust, affecting the workshop environment and subsequent processes; and the distribution device height is fixed and cannot be dynamically adjusted according to the material accumulation.

[0005] Therefore, there is an urgent need for a new sleeve kiln material uniform distribution device and distribution method to solve the above technical defects. SUMMARY

[0006] The present application aims to provide a sleeve kiln material uniform distribution device and distribution method to solve the problem of the material being concentrated and freely falling from a high place into the kiln body, which is easy to cause local accumulation, resulting in uneven distribution of the material in the kiln, causing local overburning or underburning, affecting the product quality.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a sleeve kiln material uniform distribution device, comprising a kiln body feeding port, the top end of the kiln body feeding port is fixedly connected with a gear ring holder, the top end of the gear ring holder is fixedly connected with a driving motor, the output shaft of the driving motor is fixedly connected with a rotating shaft downward, the rotating shaft is movably connected with a gear ring in the gear ring holder, the bottom end of the rotating shaft is movably connected with a swing arm, the other end of the swing arm is rotatably connected with a gear, the bottom end of the gear is rotatably connected with a push rod, the top of the kiln body feeding port is movably connected with a rotating disc, a plurality of push grooves matched with the push rod are formed in the edge of the rotating disc, and the bottom center of the rotating disc is fixedly connected with a connecting rod.

[0008] As a further technical solution of the present invention, four groups of balls are embedded in the bottom of the turntable, and the turntable rolls on the top of the kiln feeding port through the balls.

[0009] As a further technical solution of the present invention, a telescopic cloth structure is installed at the top of the inner part of the kiln body feeding port. The telescopic cloth structure includes three groups of mutually nested cylinder segments, which are the first cylinder segment, the second cylinder segment and the third cylinder segment from top to bottom. The bottom end of the third cylinder segment is fixedly connected to a hopper, and the hopper is inclined at 45°.

[0010] As a further technical solution of the present invention, the first cylinder segment is fixedly connected to the middle of the top of the kiln body feeding port, the second cylinder segment is movably connected to the bottom end of the first cylinder segment, and the connecting rod passes through the first cylinder segment and is fixedly connected to the second cylinder segment.

[0011] As a further technical solution of the present invention, a feeding box is fixed on the right side of the top of the kiln body feeding port, a feeding pipe is connected to the right side of the feeding box, the feeding pipe is connected to an external feeding device, and a material trough is connected between the bottom end of the feeding box and the first cylinder section.

[0012] As a further technical solution of the present invention, a partition is fixedly connected to the top of the inner wall of the kiln body feeding port, a lifting motor is fixedly connected to the top of the partition, a threaded rod is fixedly connected to the output shaft of the lifting motor, a threaded seat is sleeved on the outside of the threaded rod, a connecting frame is fixedly connected to the right side of the threaded seat, and the connecting frame is movably sleeved on the outside of the hopper and abuts against the bottom end of the third cylinder section.

[0013] A method for uniformly distributing materials in a sleeve kiln comprises the following steps:

[0014] S1: The drive motor is powered on and started. The drive motor is fixedly connected to the rotating shaft through the output shaft. The rotating shaft starts to rotate. The lower end of the rotating shaft is movably connected to the swing arm. During the rotation process, the swing arm engages with the ring gear through the gear. The gear moves in a circular motion along the ring gear under the drive of the swing arm. The bottom end of the gear is connected to the shift lever. During the movement, the shift lever periodically engages with the shift groove set on the edge of the turntable;

[0015] S2: The turntable is turned to achieve intermittent rotation. Each time the turntable is turned to a set angle, the second cylinder section fixed to the bottom of the turntable rotates synchronously, and the direction of the hopper connected to the second cylinder section through the connecting rod changes accordingly. As the turntable continues to rotate, the direction of the hopper's inclined surface is continuously adjusted, thereby achieving multi-directional and uniform distribution of materials in the kiln body feeding port;

[0016] S3: The material is fed into the feed box and introduced into the trough through the feeding pipe. The bottom of the trough is connected to the first drum section. Under the action of gravity, the material falls layer by layer through the first drum section, the second drum section, and the third drum section. Finally, it is stably spread into the feeding port of the kiln body through the inclined hopper. The telescopic distribution structure effectively disperses the impact force of the falling material, avoiding breakage and dust caused by free fall. Driven by the rotation of the turntable, the spreading direction is continuously adjusted;

[0017] S4: The lifting motor is powered on and started. The lifting motor adjusts the speed and torque according to the real-time feedback signal of the encoder, drives the threaded rod to rotate, and the threaded rod cooperates with the threaded seat. The threaded seat moves up and down along the threaded rod. The lifting of the connecting frame drives the overall lifting and lowering of the telescopic cloth structure. As the material stacking height increases, the control system controls the lifting motor to rotate forward, and the telescopic cloth structure rises, shortening the material falling distance, reducing the spreading impact, and preventing material damage. As the material stacking height decreases, the control system controls the lifting motor to reverse, and the telescopic cloth structure descends, maintaining an appropriate distance between the hopper outlet and the material surface.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the device for uniformly distributing materials in a sleeve kiln not only improves the uniformity of heating materials in the sleeve kiln and enhances the heat exchange effect in the kiln, but also makes the distribution process more gentle and stable, thereby improving the consistency of the calcination process and the quality of the product;

[0019] (1) By providing a driving motor, a gear ring frame, a gear ring, a swing arm, a rotating shaft, a feeding box, a feeding pipe, a material trough, a gear, a lever, a trough, a turntable, and a ball bearing, the material can be evenly laid inside the feeding port of the kiln body by continuously adjusting the material distribution direction, thereby solving the problem of uneven heat exchange and poor calcination effect caused by concentrated accumulation of materials, thereby improving the uniformity of material heating in the sleeve kiln and the overall utilization efficiency of the kiln body;

[0020] (2) By providing a feeding box, a feeding pipe, a material trough, a first barrel section, a second barrel section, a third barrel section, and a hopper, it can be adaptively adjusted according to the material stacking height in the sleeve kiln, effectively reducing the impact force of the material during free fall, preventing dust from flying and material damage, and avoiding the impact, crushing and dust problems caused by the material falling directly from a high altitude, ensuring the smooth laying of the material, enhancing the heat exchange effect in the kiln, and extending the service life of the equipment;

[0021] (3) By setting up a lifting motor, threaded rod, partition, threaded seat, and connecting frame, the feeding height can be adjusted in real time according to the change of the material accumulation amount in the kiln, and the appropriate distance between the feeding port and the material surface can be always maintained, the material drop can be reduced, and the hopper can always be kept in close contact with the material surface, making the feeding process in the sleeve kiln softer and more stable, improving the consistency of the calcination process and the product quality, and meeting the needs of large-scale continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the schematic diagram of the front view structure of the present application;

[0023] Figure 2 It is the schematic diagram of the top view structure of the rotating disc of the present application;

[0024] Figure 3 It is the schematic diagram of the front view structure of the threaded rod of the present application;

[0025] Figure 4 It is the schematic diagram of the front view structure of the rotating disc of the present application;

[0026] Figure 5 It is the schematic diagram of the perspective structure of the trough of the present application;

[0027] Figure 6 It is the schematic diagram of the top view structure of the second cylinder section of the present application.

[0028] In the figure: 1, driving motor; 2, gear ring holder; 3, gear ring; 4, swing arm; 5, rotating shaft; 6, feeding tank; 7, feeding pipeline; 8, trough; 9, gear; 10, push rod; 11, push groove; 12, rotating disc; 13, ball; 14, lifting motor; 15, threaded rod; 16, partition; 17, threaded seat; 18, connecting holder; 19, first cylinder section; 20, connecting rod; 21, second cylinder section; 22, third cylinder section; 23, hopper; 24, kiln body feeding opening. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] Please refer to Figure 1-6 An embodiment provided by the present application is a device for uniformly distributing materials in a sleeve kiln, which comprises a kiln body feeding opening 24, a gear ring holder 2 fixedly connected to the top end of the kiln body feeding opening 24, a driving motor 1 fixedly connected to the top end of the gear ring holder 2, a rotating shaft 5 fixedly connected to the output shaft of the driving motor 1 downward, a gear ring 3 movably connected in the gear ring holder 2, a swing arm 4 movably sleeved at the bottom end of the rotating shaft 5, a gear 9 rotatably connected to the other end of the swing arm 4, a push rod 10 rotatably connected to the bottom end of the gear 9, a rotating disc 12 movably connected to the top of the kiln body feeding opening 24, a plurality of push grooves 11 matching the push rod 10 and embedded in the edge of the rotating disc 12, a connecting rod 20 fixedly connected to the bottom center of the rotating disc 12, four groups of balls 13 embedded in the bottom of the rotating disc 12, and the rotating disc 12 rolling on the top of the kiln body feeding opening 24 through the balls 13.

[0031] Specifically, if Figure 1 、 Figure 2 and Figure 4 As shown, the driving motor 1 arranged at the top of the kiln feeding port 24 drives the rotating shaft 5 to rotate, and the swing arm 4 sleeved on the lower end of the rotating shaft 5 is engaged with the ring gear 3 through the gear 9. The swing arm 4 drives the gear 9 to make a circular motion during the rotation process. The lever 10 connected to the bottom end of the gear 9 continuously engages with the shifting groove 11 on the edge of the turntable 12 during the swinging process, pushing the turntable 12 to realize intermittent rotation. With each rotation of the turntable 12, the second cylinder section 21 fixedly connected to the bottom of the turntable 12 synchronously rotates 90°, thereby changing the direction of the hopper 23. By continuously adjusting the distribution direction, the material can be evenly laid inside the kiln feeding port 24.

[0032] A telescopic distribution structure is installed at the top of the inner part of the kiln body feeding port 24. The telescopic distribution structure includes three groups of mutually nested cylinder segments, which are, from top to bottom, the first cylinder segment 19, the second cylinder segment 21 and the third cylinder segment 22. The bottom end of the third cylinder segment 22 is fixedly connected to a hopper 23, which is inclined at 45 degrees. The first cylinder segment 19 is fixedly connected to the middle of the top of the kiln body feeding port 24. The second cylinder segment 21 is movably connected to the bottom end of the first cylinder segment 19. The connecting rod 20 passes through the first cylinder segment 19 and is fixedly connected to the second cylinder segment 21. A feeding box 6 is fixed to the right side of the top of the kiln body feeding port 24. A feeding pipe 7 is connected to the right side of the feeding box 6. The feeding pipe 7 is connected to an external feeding device. A material trough 8 is connected between the bottom end of the feeding box 6 and the first cylinder segment 19.

[0033] Specifically, if Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, the telescopic material distribution structure includes three groups of mutually nested cylinder segments, namely the first cylinder segment 19, the second cylinder segment 21 and the third cylinder segment 22, wherein the first cylinder segment 19 is fixedly installed on the top of the kiln body feeding port 24, the second cylinder segment 21 is connected to the turntable 12 through the connecting rod 20, and can rotate horizontally with the turntable 12, and the third cylinder segment 22 is tilted by the hopper 23. The material is introduced from the external feeding equipment through the feeding box 6 and the feeding pipe 7 into the material trough 8 and enters the interior of the first cylinder segment 19. Under the action of gravity, it falls layer by layer through the cylinder segments and is finally evenly spread into the kiln body feeding port 24 through the inclined hopper 23.

[0034] A partition 16 is fixedly connected to the top of the inner wall of the kiln body feeding port 24, and a lifting motor 14 is fixedly connected to the top of the partition 16. A threaded rod 15 is fixedly connected to the output shaft of the lifting motor 14. A threaded seat 17 is sleeved on the outside of the threaded rod 15. A connecting frame 18 is fixedly connected to the right side of the threaded seat 17. The connecting frame 18 is movably sleeved on the outside of the hopper 23 and abuts against the bottom end of the third cylinder section 22.

[0035] Specifically, if Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As shown, the lifting motor 14 drives the threaded rod 15 to rotate, and the threaded seat 17 moves up and down along the threaded rod 15, thereby driving the connecting frame 18 to move up and down. The connecting frame 18 is connected to the hopper 23 and the third cylinder section 22 to achieve overall lifting. When the material accumulation height increases, the telescopic cloth structure can rise accordingly to prevent uneven spreading, breakage and dust pollution caused by excessive material drop; when the material accumulation decreases, the cloth structure can automatically descend to always keep the hopper 23 in close contact with the material surface.

[0036] A method for uniformly distributing materials in a sleeve kiln comprises the following steps:

[0037] S1: The drive motor 1 is powered on and started. The drive motor 1 is fixedly connected to the rotating shaft 5 via the output shaft. The rotating shaft 5 begins to rotate. The lower end of the rotating shaft 5 is movably connected to the swing arm 4. During the rotation process, the swing arm 4 meshes with the ring gear 3 through the gear 9. The gear 9 performs a circular motion along the ring gear 3 under the drive of the swing arm 4. The bottom end of the gear 9 is connected to the shift lever 10. During the movement, the shift lever 10 periodically engages with the shift groove 11 provided on the edge of the turntable 12;

[0038] S2: The turntable 12 is turned to realize intermittent rotation. Each time the turntable 12 is turned to a set angle, the second cylinder section 21 fixedly connected to the bottom of the turntable 12 rotates synchronously, and the direction of the hopper 23 connected to the second cylinder section 21 through the connecting rod 20 changes accordingly. As the turntable 12 continues to rotate, the direction of the inclined surface of the hopper 23 is continuously adjusted, thereby realizing multi-directional and uniform distribution of materials in the kiln body feeding port 24;

[0039] S3: Material is fed from the feed box 6 and introduced into the trough 8 via the feed pipe 7. The bottom of the trough 8 is connected to the first drum section 19. Under the action of gravity, the material falls layer by layer through the first drum section 19, the second drum section 21, and the third drum section 22. Finally, it is stably spread into the kiln body feeding port 24 through the inclined hopper 23. The telescopic distribution structure effectively disperses the impact force of the falling material, avoiding breakage and dust caused by free fall. Driven by the rotation of the turntable 12, the spreading direction is continuously adjusted.

[0040] S4: The lifting motor 14 is powered on and started. The lifting motor 14 adjusts the speed and torque according to the real-time feedback signal of the encoder, driving the threaded rod 15 to rotate. The threaded rod 15 cooperates with the threaded seat 17, and the threaded seat 17 moves up and down along the threaded rod 15. The connecting frame 18 is lifted and lowered to drive the telescopic cloth structure to lift and lower as a whole. As the material stacking height increases, the control system controls the lifting motor 14 to rotate forward, and the telescopic cloth structure rises, shortening the falling distance of the material, reducing the spreading impact, and preventing material damage. As the material stacking height decreases, the control system controls the lifting motor 14 to reverse, and the telescopic cloth structure descends, maintaining an appropriate distance between the hopper 23 outlet and the material surface.

[0041] The computer software involved in the hardware carriers such as the driving motor 1 in the technical solutions is the software technology known to those skilled in the art, and is only applied in the above hardware carriers, that is, the computer software part involved in the technical solutions is an essential technical feature to solve the above technical problems, that is, a necessary technical feature to solve the technical problems of the present application, but is not a distinguishing technical feature (not a technical improvement point) to solve the technical problems. The applicant has not made any technical improvement to the computer software part involved in the above related hardware carriers, and it is not the technical point of the application.

[0042] Therefore, the "lifting motor 14" and the like involved in the present application are all entity function modules combining the computer software program or protocol in the prior art with the hardware carriers of the present application. The computer software program involved in the entity function module is known to those skilled in the art, and is not an improvement of the present application. The improvement of the present application should be the interaction relationship between the entity function modules, that is, the improvement of the whole structure of the present application to solve the corresponding technical problems of the present application.

[0043] Working principle: the driving motor 1 is a three-phase asynchronous motor, the control system sends a start command, the driving motor 1 is energized and starts, the driving motor 1 is fixedly connected with the rotating shaft 5 through the output shaft, the rotating shaft 5 starts to rotate, the rotating shaft 5 is movably sleeved with the swing arm 4 at the lower end, the swing arm 4 is meshed with the gear ring 3 in the rotating process, the gear 9 makes circular motion along the gear ring 3 under the drive of the swing arm 4, the gear 9 is connected with the push rod 10 at the bottom, the push rod 10 is periodically inserted into the push groove 11 arranged at the edge of the rotating disc 12 in the movement process, the rotating disc 12 is driven to rotate intermittently, the rotating disc 12 rotates by a set angle each time, the second cylinder section 21 fixedly connected at the bottom of the rotating disc 12 rotates synchronously, the hopper 23 connected with the second cylinder section 21 through the connecting rod 20 changes with the rotating disc 12, with the continuous rotation of the rotating disc 12, the inclination of the hopper 23 changes continuously, thereby realizing the uniform distribution of the material in the kiln body feeding port 24, the material is fed from the feeding box 6, introduced into the chute 8 through the feeding pipeline 7, the bottom of the chute 8 is connected with the first cylinder section 19, the material falls layer by layer through the first cylinder section 19, the second cylinder section 21 and the third cylinder section 22 under the action of gravity, and finally smoothly scattered into the kiln body feeding port 24 through the obliquely arranged hopper 23, the telescopic material distribution structure effectively disperses the impact force of the material falling, avoids the crushing and dust raising caused by free falling, and under the drive of the rotating disc 12, the scattering direction continuously adjusts, further ensuring the uniformity of scattering, the lifting motor 14 is a servo motor, with a built-in encoder, for accurately controlling the lifting position, after the control system sends a lifting command, the lifting motor 14 is energized and starts, the lifting motor 14 adjusts the rotating speed and torque according to the real-time feedback signal of the encoder, drives the threaded rod 15 to rotate, the threaded rod 15 cooperates with the threaded seat 17, the threaded seat 17 moves up and down along the threaded rod 15, the threaded seat 17 is connected with the connecting frame 18, the connecting frame 18 is fixedly connected with the third cylinder section 22 and the hopper 23, the connecting frame 18 drives the telescopic material distribution structure to ascend and descend as a whole, as the material accumulation height increases, the control system controls the lifting motor 14 to rotate forward, the telescopic material distribution structure rises, the falling distance of the material is shortened, the scattering impact is reduced, the material is prevented from being damaged, as the material accumulation height decreases, the control system controls the lifting motor 14 to rotate reversely, the telescopic material distribution structure descends, and the outlet of the hopper 23 maintains a proper distance from the material surface.

[0044] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without departing from the scope of the application. The application is therefore not limited by the examples described above but can vary within the scope of the claims and their equivalents. Any reference signs in the claims should not be construed as limiting the scope of the claims.

Claims

1. A device for uniformly distributing materials in a sleeve kiln, comprising a kiln body feeding port (24), characterized in that: The top of the kiln body feeding port (24) is fixedly connected to a gear ring frame (2), the top of the gear ring frame (2) is fixedly connected to a driving motor (1), the output shaft of the driving motor (1) is fixedly connected downwardly to a rotating shaft (5), the gear ring (3) is movably connected inside the gear ring frame (2), the bottom end of the rotating shaft (5) is movably sleeved with a swing arm (4), the other end of the swing arm (4) is rotatably connected to a gear (9), the bottom end of the gear (9) is rotatably connected to a shifting rod (10), the top of the kiln body feeding port (24) is movably connected to a turntable (12), the edge of the turntable (12) is provided with multiple groups of shifting grooves (11) that are engaged with the shifting rod (10), and the bottom center of the turntable (12) is fixedly connected to a connecting rod (20).

2. The device for uniformly distributing materials in a sleeve kiln according to claim 1, characterized in that: Four groups of balls (13) are embedded at the bottom of the turntable (12), and the turntable (12) rolls on the top of the kiln body feeding port (24) through the balls (13).

3. The device for uniformly distributing materials in a sleeve kiln according to claim 1, characterized in that: A telescopic material distribution structure is installed at the top of the inner portion of the kiln body feeding port (24). The telescopic material distribution structure includes three groups of mutually nested cylinder segments, which are respectively the first cylinder segment (19), the second cylinder segment (21) and the third cylinder segment (22) from top to bottom. The bottom end of the third cylinder segment (22) is fixedly connected to a hopper (23), and the hopper (23) is inclined at 45 degrees.

4. The device for uniformly distributing materials in a sleeve kiln according to claim 3, characterized in that: The first cylinder section (19) is fixedly connected to the middle of the top of the kiln body feeding port (24), the second cylinder section (21) is movably connected to the bottom end of the first cylinder section (19), and the connecting rod (20) passes through the first cylinder section (19) and is fixedly connected to the second cylinder section (21).

5. The device for uniformly distributing materials in a sleeve kiln according to claim 1, characterized in that: A feeding box (6) is fixed on the right side of the top of the kiln body feeding port (24), a feeding pipe (7) is connected to the right side of the feeding box (6), the feeding pipe (7) is connected to an external feeding device, and a material trough (8) is connected between the bottom end of the feeding box (6) and the first cylinder section (19).

6. The device for uniformly distributing materials in a sleeve kiln according to claim 1, characterized in that: A partition (16) is fixedly connected to the top of the inner wall of the kiln body feeding port (24), and a lifting motor (14) is fixedly connected to the top of the partition (16).

7. The device for uniformly distributing materials in a sleeve kiln according to claim 6, characterized in that: The output shaft of the lifting motor (14) is fixedly connected to a threaded rod (15), the outside of the threaded rod (15) is sleeved with a threaded seat (17), the right side of the threaded seat (17) is fixedly connected to a connecting frame (18), and the connecting frame (18) is movably sleeved on the outside of the hopper (23) and abuts against the bottom end of the third cylinder section (22).

8. A method for uniformly distributing material in a sleeve kiln, using a device for uniformly distributing material in a sleeve kiln according to any one of claims 1 to 7, comprising the following steps: S1: The driving motor (1) is powered on and started. The driving motor (1) is fixedly connected to the rotating shaft (5) via the output shaft. The rotating shaft (5) starts to rotate. The lower end of the rotating shaft (5) is movably connected to the swing arm (4). The swing arm (4) is meshed with the ring gear (3) via the gear (9) during the rotation process. The gear (9) moves in a circular motion along the ring gear (3) under the drive of the swing arm (4). The lower end of the gear (9) is connected to the shifting rod (10). The shifting rod (10) is periodically embedded in the shifting groove (11) provided on the edge of the turntable (12) during the movement process. S2: The turntable (12) is turned to realize intermittent rotation. Each time the turntable (12) is turned to a set angle, the second cylinder section (21) fixedly connected to the bottom of the turntable (12) rotates synchronously, and the direction of the hopper (23) connected to the second cylinder section (21) through the connecting rod (20) changes accordingly. As the turntable (12) continues to rotate, the direction of the inclined surface of the hopper (23) is continuously adjusted, thereby realizing multi-directional uniform distribution of materials in the kiln body feeding port (24); S3: The material is fed from the feeding box (6) and introduced into the trough (8) through the feeding pipe (7). The bottom of the trough (8) is connected to the first barrel section (19). Under the action of gravity, the material falls layer by layer through the first barrel section (19), the second barrel section (21), and the third barrel section (22). Finally, it is stably spread into the inside of the kiln body feeding port (24) through the inclined hopper (23). The telescopic distribution structure effectively disperses the impact force of the falling material, avoiding the breakage and dust caused by free fall. The spreading direction is continuously adjusted under the rotation of the turntable (12); S4: The lifting motor (14) is powered on and started. The lifting motor (14) adjusts the speed and torque according to the real-time feedback signal of the encoder, drives the threaded rod (15) to rotate, the threaded rod (15) cooperates with the threaded seat (17), the threaded seat (17) moves up and down along the threaded rod (15), and the connecting frame (18) is lifted and lowered to drive the telescopic cloth structure to lift and lower as a whole. As the material stacking height increases, the control system controls the lifting motor (14) to rotate forward, the telescopic cloth structure rises, shortens the material falling distance, reduces the spreading impact, and prevents material damage. As the material stacking height decreases, the control system controls the lifting motor (14) to rotate reversely, the telescopic cloth structure descends, and maintains an appropriate distance between the hopper (23) outlet and the material surface.

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