Sludge solid waste treatment system and working method thereof

Abstract

The invention discloses a sludge solid waste treatment system and a working method thereof.The sludge solid waste treatment system comprises a main body frame, an air drying box, a rolling air drying mechanism, an anti-overloading mechanism and an anti-overloading auxiliary mechanism, and the rolling air drying mechanism comprises a driving assembly, a rotating shaft, a spiral plate and supporting wheels; the anti-overloading mechanism comprises an anti-overloading pipe, an anti-overloading rod, an anti-overloading groove, a moving block, an anti-overloading spring plate, a pressing plate, an inner push plate and a longitudinal rod, through rotation of a spiral plate, materials can be effectively pushed to roll and turn over in the air drying box, evaporation of moisture on the surfaces of the materials is accelerated, the air drying efficiency is improved, and the service life of the materials is prolonged. Stable rotation of a spiral plate can be guaranteed through cooperation of a supporting wheel and a rotating shaft, so that materials are evenly treated in the drying process, the overload protection mechanism can effectively prevent equipment from being damaged due to overload through a series of components, the overload protection effect is achieved, pressure is automatically adjusted and released when the load is too large, and the working efficiency is improved. And the damage of a mechanical system caused by overhigh load is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and more specifically, to a sludge solid waste treatment system and a working method thereof. Background Art

[0002] In the existing sludge solid waste treatment technology, there are many challenges in sludge drying, especially the problems of poor drying effect, uneven drying and easy overload of the output shaft of the drive component. These problems not only lead to low treatment efficiency, but also may increase the maintenance cost of the equipment and have adverse effects on the environment. If the design of the drive component is unreasonable, the load bearing capacity of the output shaft is insufficient, or the transmission ratio of the drive system does not match, the output shaft may be overloaded, causing damage or shutdown of the equipment. Long-term use and wear may reduce the efficiency of the drive component, especially when the lubrication system fails or is severely worn, the load on the drive component increases, causing the output shaft to be easily overloaded. Sludge drying equipment usually includes a drive system, which is responsible for driving the rotation of the dryer or the transmission of materials.

[0003] However, the output shaft of the drive component is prone to overload during operation. If the design of the drive component is unreasonable, the load-bearing capacity of the output shaft is insufficient, or the transmission ratio of the drive system is not matched, the output shaft may be overloaded, causing damage or shutdown of the equipment. Long-term use and wear may cause the efficiency of the drive component to decrease, especially when the lubrication system fails or is severely worn, the load on the drive component increases, causing the output shaft to be easily overloaded. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a sludge solid waste treatment system and a working method thereof to solve the technical problems mentioned in the background technology, such as poor sludge drying treatment, uneven drying, and easy overload of the output shaft of the drive component. Technical Solution

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sludge solid waste treatment system, comprising a main frame, an air drying box, a rolling air drying mechanism, an anti-overload mechanism and an anti-overload auxiliary mechanism, the rolling air drying mechanism comprising a driving assembly, a rotating shaft, a spiral plate and a supporting wheel, the supporting wheel being installed on the main frame, the side wall of the air drying box cooperates with the supporting wheel to support the rotation, the spiral plate being installed inside the air drying box, the rotating shaft being installed on the output end of the driving assembly through the anti-overload mechanism, and one end of the rotating shaft being cooperated and connected with one end of the air drying box, the anti-overload mechanism comprising an anti-overload tube, an anti-overload rod, an anti-overload groove, a moving block, an anti-overload spring plate, a clamping plate, an inner push plate and a longitudinal rod, one end of the anti-overload rod extending into the anti-overload tube, the anti-overload groove being arranged on the side wall of the anti-overload rod, the moving block tending to be slidably installed on the inner wall of the anti-overload tube, the longitudinal rod sliding longitudinally on the side wall of the anti-overload tube, the inner push plate being contacted with the bottom of the moving block, and the inner push plate being connected to the longitudinal rod.

[0006] The present invention is further configured as follows: the anti-overload auxiliary mechanism includes a fixed ring, a reverse thrust spring block, a directional ring and a threaded ring; the fixed ring is fixedly mounted on the outer wall of the anti-overload tube, and the reverse thrust spring block is mounted on the inner wall of the fixed ring; one end face of the moving block presses against the reverse thrust spring block, and the reverse thrust spring block can push the moving block to reset in the opposite direction; the threaded ring is threadedly connected to the outer wall of the clamping tube; the directional ring is directionally slidably mounted on the outer wall of the anti-overload tube; one end of the longitudinal rod is mounted on the directional ring; the longitudinal rod pushes the inner push ring to push the moving block to move tiltedly, so that the anti-overload spring plate is pressed into the anti-overload groove, so that the anti-overload tube and the anti-overload rod are linked.

[0007] The present invention is further configured such that a adding bucket is installed at the top end of the main frame, and one end of the adding bucket extends into the air drying box. The adding bucket and the collecting bucket facilitate material addition, ensure material collection, and reduce material scattering.

[0008] The present invention is further configured such that a motor frame is installed at the top end of the main frame, and the drive assembly is fixedly installed on the motor frame, and the motor frame provides a drive assembly installation platform to ensure stable driving.

[0009] The present invention is further configured such that a collecting bucket is installed on the main frame, and the collecting bucket is installed at the bottom end of the adding bucket. The setting of the collecting bucket facilitates the collection of unprocessed waste.

[0010] The present invention is further configured such that a dryer is installed on the main frame, and a drying pipe is installed on the dryer, and one end of the drying pipe extends into the interior of the air drying box. The dryer and the drying pipe provide hot air drying, accelerate the processing efficiency, and improve the processing effect.

[0011] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the anti-overload tube and the anti-overload rod, and the connecting plate is respectively connected with the rotating shaft and the driving assembly, so that the connecting plate realizes a reliable connection.

[0012] The present invention is further configured such that a longitudinal groove is provided on the side wall of the anti-overload tube, and the longitudinal stem is provided in the longitudinal groove in cooperation with a sliding guide. The longitudinal groove is provided to facilitate the threaded ring to push the inner push ring to move. Beneficial Effects

[0013] Compared with the prior art, the present invention provides a sludge solid waste treatment system and a working method thereof, which have the following beneficial effects: The present invention is provided with a rolling air-drying mechanism, which can effectively promote the material to roll and turn in the air-drying box through the rotation of the spiral plate, accelerate the evaporation of moisture on the surface of the material, and improve the air-drying efficiency. The cooperation of the supporting wheel and the rotating shaft can ensure the stable rotation of the spiral plate, so that the material can be evenly processed during the drying process, avoiding local over-wetting or uneven drying. The driving component drives the spiral plate to operate through the rotating shaft, provides stable power output, and ensures that the rolling air-drying process is continuous and reliable.

[0014] The present invention is provided with an anti-overload mechanism, which can effectively prevent the equipment from being damaged due to excessive load through a series of components, and plays an overload protection role. The combination of the anti-overload rod, the longitudinal rod, the inner push plate and other components can automatically adjust and release the pressure when the load is too large, and avoid damage to the mechanical system caused by excessive load. The mechanism can automatically adjust under overload conditions to prevent the equipment from suffering unnecessary damage, thereby enhancing the durability and stability of the equipment.

[0015] The present invention is provided with an anti-overload auxiliary mechanism. The design of the reverse thrust spring block and the moving block can automatically reset in the opposite direction when the load is too high, thereby reducing human intervention and improving the level of automation. Through the guidance of the directional ring and the longitudinal rod, it can ensure that the anti-overload mechanism accurately triggers the protection mechanism under overload conditions to ensure the safe operation of the equipment. By releasing the overload pressure in time, the anti-overload auxiliary mechanism effectively protects the equipment from the influence of overload, reduces the risk of failure caused by overload, and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention when it is not in use; Figure 2 It is a schematic diagram of the overall structure of the device of the present invention from a back perspective; Figure 3 It is a schematic diagram of the structure inside the air drying box of the present invention; Figure 4 It is a schematic diagram of the structure of the anti-overload mechanism and the anti-overload auxiliary mechanism in the present invention; Figure 5 It is a schematic diagram of the internal structure of the anti-overload mechanism and the anti-overload auxiliary mechanism in the present invention.

[0017] In the figure: 1. main frame; 2. air drying box; 3. drive assembly; 4. rotating shaft; 5. spiral plate; 6. supporting wheel; 7. anti-overload tube; 8. anti-overload rod; 9. anti-overload groove; 10. moving block; 11. anti-overload spring plate; 12. pressing plate; 13. inner push plate; 14. longitudinal rod; 15. fixing ring; 16. reverse push spring block; 17. directional ring; 18. threaded ring; 19. adding bucket; 20. motor frame; 21. collecting bucket; 22. drying machine; 23. drying tube; 24. connecting plate; 25. longitudinal groove. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0020] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0021] See also Figure 1-Figure 5 The sludge solid waste treatment system includes a main frame 1, an air drying box 2, a rolling air drying mechanism, an anti-overload mechanism and an anti-overload auxiliary mechanism. The rolling air drying mechanism includes a driving component 3, a rotating shaft 4, a spiral plate 5 and a supporting wheel 6. The supporting wheel 6 is installed on the main frame 1. The side wall of the air drying box 2 cooperates with the supporting wheel 6 to support the rotation setting. The spiral plate 5 is installed inside the air drying box 2. The rotating shaft 4 is installed on the output end of the driving component 3 through the anti-overload mechanism, and one end of the rotating shaft 4 is connected with one end of the air drying box 2. The anti-overload mechanism includes an anti-overload tube 7, an anti-overload rod 8, an anti-overload groove 9, a moving block 10, an anti-overload spring plate 11, a clamping plate 12, an inner push plate 13 and a longitudinal rod 14. One end of the anti-overload rod 8 extends into the anti-overload tube 7, the anti-overload groove 9 is arranged on the side wall of the anti-overload rod 8, the moving block 10 is slidably installed on the inner wall of the anti-overload tube 7, the longitudinal rod 14 slides longitudinally on the side wall of the anti-overload tube 7, the inner push plate 13 is contacted with the bottom of the moving block 10, and the inner push plate 13 is connected to the longitudinal rod 14.

[0022] In this embodiment, the driving component 3 outputs reciprocating rotational power to the air drying box 2 through the rotating shaft 4, driving the entire air drying box 2 to rotate reciprocatingly. The bottom of the air drying box 2 contacts the supporting wheel 6 on the main frame 1. The supporting wheel 6 provides support for the air drying box 2 and allows the air drying box 2 to rotate stably. The spiral plate 5 installed inside the air drying box 2 continuously turns the sludge as the air drying box 2 rotates. The rotation of the spiral plate 5 causes the sludge to have both axial movement and turning effects in the air drying box 2. The contact area of ​​the sludge with the hot air increases during the turning process, which accelerates the air drying effect. By controlling the rotation speed of the driving component 3, the turning frequency and stop of the sludge can be adjusted. During the stay time, one end of the anti-overload rod 8 extends into the anti-overload tube 7, the anti-overload groove 9 is set on the side wall of the anti-overload rod 8, the moving block 10 can slide obliquely on the inner wall of the anti-overload tube 7, and is connected to the inner push plate 13, the longitudinal rod 14 slides longitudinally on the side wall of the anti-overload tube 7, and is connected to the inner push plate 13, the anti-overload spring plate 11 and the clamping plate 12 are combined to form an elastic clamping structure. During normal operation, the anti-overload spring plate 11 is pressed into the anti-overload groove 9, so that the anti-overload tube 7 and the anti-overload rod 8 are linked. When the load is too large, the anti-overload spring plate 11 will fall out of the anti-overload groove 9, disconnecting the linkage and protecting the drive assembly 3 from damage due to excessive torque.

[0023] The anti-overload auxiliary mechanism includes a fixed ring 15, a reverse thrust spring block 16, a directional ring 17 and a threaded ring 18. The fixed ring 15 is fixedly installed on the outer wall of the anti-overload tube 7, and the reverse thrust spring block 16 is installed on the inner wall of the fixed ring 15. One end face of the moving block 10 presses against the reverse thrust spring block 16, and the reverse thrust spring block 16 can push the moving block 10 to reset in the opposite direction. The threaded ring 18 is threadedly connected to the outer wall of the clamping tube. The directional ring 17 is directional and slidably installed on the outer wall of the anti-overload tube 7. One end of the longitudinal rod 14 is installed on the directional ring 17. The longitudinal rod 14 pushes the inner push ring to push the moving block 10 to move tiltedly, so that the anti-overload spring plate 11 is pressed into the anti-overload groove 9, so that the anti-overload tube 7 and the anti-overload rod 8 are linked.

[0024] In this embodiment, the fixing ring 15 is fixedly mounted on the outer wall of the anti-overload tube 7, and a reverse thrust spring block 16 is installed inside. The end face of the moving block 10 will press against the reverse thrust spring block 16, and the reverse thrust spring block 16 can push the moving block 10 to reset in the opposite direction. The threaded ring 18 is threadedly connected to the outer wall of the clamping tube, and the preload force can be adjusted. The directional ring 17 slides directionally on the outer wall of the anti-overload tube 7. One end of the longitudinal rod 14 is mounted on the directional ring 17. The longitudinal rod 14 pushes the inner push ring, so that the inner push ring pushes the moving block 10 to move tiltedly. During this process, the anti-overload spring plate 11 is pressed into the anti-overload groove 9, restoring the linkage state of the anti-overload tube 7 and the anti-overload rod 8. The longitudinal groove 25 on the side wall of the anti-overload tube 7 ensures that the longitudinal rod 14 slides in the correct direction.

[0025] See also Figure 1-Figure 5As a supplementary implementation method of the sludge solid waste treatment system and its working method of the rolling air-drying mechanism, the anti-overload mechanism and the anti-overload auxiliary mechanism: the top end of the main frame 1 is installed with an adding bucket 19, and one end of the adding bucket 19 extends into the air-drying box 2, the top end of the main frame 1 is installed with a motor frame 20, and the driving assembly 3 is fixedly installed on the motor frame 20, the main frame 1 is installed with a collecting bucket 21, and the collecting bucket 21 is installed at the bottom end of the adding bucket 19, the main frame 1 is installed with a dryer 22, and the dryer 22 is installed with a drying pipe 23, and one end of the drying pipe 23 extends into the interior of the air-drying box 2, the bottom ends of the side walls of the anti-overload pipe 7 and the anti-overload rod 8 are installed with connecting plates 24, and the connecting plates 24 are respectively connected with the rotating shaft 4 and the driving assembly 3, and the side walls of the anti-overload pipe 7 are provided with longitudinal grooves 25, and the longitudinal stem is arranged in the longitudinal grooves 25 in cooperation with the sliding guide.

[0026] More specifically, the sludge and solid waste are added into the air drying box 2 through the adding bucket 19, the dryer 22 is started, and the hot air enters the air drying box 2 through the drying pipe 23. The driving component 3 is connected to the rotating shaft 4 through the anti-overload mechanism and is ready. The driving component 3 is started and the rotating shaft 4 is driven to rotate through the anti-overload mechanism. The rotating shaft 4 drives the air drying box 2 to roll on the supporting wheel 6. The spiral plate 5 in the air drying box 2 continuously turns the sludge so that the sludge is in full contact with the hot air. At the same time, the spiral plate 5 gradually pushes the sludge to the discharge end. The drying pipe 23 continuously transports hot air to accelerate the evaporation of sludge moisture. When there is too much sludge or other conditions cause the load to increase, the anti-overload mechanism is started, and the high load causes the anti-overload spring plate 11 to disengage from the anti-overload groove 9, the anti-overload pipe 7 is disconnected from the anti-overload rod 8, and the driving component 3 is temporarily separated from the rotating shaft 4. This separation protects the driving component 3 from damage.

[0027] In summary, when the overall equipment is in use or running: when the rolling air-drying mechanism needs to be operated, the rolling air-drying mechanism realizes the turning and air-drying functions of the sludge, and the driving component 3 outputs power to the air-drying box 2 through the rotating shaft 4, driving the entire air-drying box 2 to rotate reciprocatingly, and the bottom of the air-drying box 2 is in contact with the supporting wheel 6 on the main frame 1, and the supporting wheel 6 provides support for the air-drying box 2 while allowing the air-drying box 2 to rotate stably. The spiral plate 5 installed inside the air-drying box 2 continuously turns the sludge as the air-drying box 2 rotates, and the rotation of the spiral plate 5 causes the sludge to have both axial movement and turning effects in the air-drying box 2. The contact area of ​​the sludge with the hot air increases during the turning process, thereby accelerating the air-drying effect, and the turning frequency and residence time of the sludge can be adjusted by controlling the rotation speed of the driving component 3.

[0028] When the anti-overload mechanism is needed to operate, the anti-overload mechanism is the core protection system of the equipment. One end of the anti-overload rod 8 extends into the anti-overload tube 7, and the anti-overload groove 9 is arranged on the side wall of the anti-overload rod 8. The moving block 10 can slide obliquely on the inner wall of the anti-overload tube 7 and is connected to the inner push plate 13. The longitudinal rod 14 slides longitudinally on the side wall of the anti-overload tube 7 and is connected to the inner push plate 13. The anti-overload spring plate 11 and the clamping plate 12 are combined to form an elastic clamping structure. During normal operation, the anti-overload spring plate 11 is pressed into the anti-overload groove 9, so that the anti-overload tube 7 and the anti-overload rod 8 are linked. When the load is too large, the anti-overload spring plate 11 will fall out of the anti-overload groove 9, disconnecting the linkage and protecting the drive component 3 from damage due to excessive torque.

[0029] When the anti-overload auxiliary mechanism needs to be operated, the fixed ring 15 is fixedly installed on the outer wall of the anti-overload tube 7, and a reverse thrust spring block 16 is installed inside. The end face of the moving block 10 will press against the reverse thrust spring block 16, and the reverse thrust spring block 16 can push the moving block 10 to reset in the opposite direction. The threaded ring 18 is threadedly connected to the outer wall of the clamping tube, and the preload force can be adjusted. The directional ring 17 slides directionally on the outer wall of the anti-overload tube 7. One end of the longitudinal rod 14 is installed on the directional ring 17. The longitudinal rod 14 pushes the inner push ring, so that the inner push ring pushes the moving block 10 to move tiltedly. This process presses the anti-overload spring plate 11 into the anti-overload groove 9, restoring the linkage state of the anti-overload tube 7 and the anti-overload rod 8. The longitudinal groove 25 on the side wall of the anti-overload tube 7 ensures that the longitudinal rod 14 slides in the correct direction.

[0030] The sludge and solid waste are added into the air drying box 2 through the adding bucket 19, and the dryer 22 is started. The hot air enters the air drying box 2 through the drying pipe 23. The driving component 3 is connected to the rotating shaft 4 through the anti-overload mechanism and is ready. The driving component 3 is started and the rotating shaft 4 is driven to rotate through the anti-overload mechanism. The rotating shaft 4 drives the air drying box 2 to roll on the supporting wheel 6. The spiral plate 5 in the air drying box 2 continuously turns the sludge so that the sludge is in full contact with the hot air. At the same time, the spiral plate 5 gradually pushes the sludge to the discharge end. The drying pipe 23 continuously transports hot air to accelerate the evaporation of sludge moisture. When there is too much sludge or other conditions cause the load to increase, the anti-overload mechanism is started, and the high load causes the anti-overload spring plate 11 to escape from the anti-overload groove 9. The anti-overload pipe 7 is disconnected from the anti-overload rod 8, and the driving component 3 is temporarily separated from the rotating shaft 4. This separation protects the driving component 3 from damage.

[0031] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A sludge solid waste treatment system, comprising a main frame (1), an air drying box (2), a rolling air drying mechanism, an anti-overload mechanism and an anti-overload auxiliary mechanism, wherein: The rolling air-drying mechanism comprises a driving assembly (3), a rotating shaft (4), a spiral plate (5) and a supporting wheel (6); the supporting wheel (6) is mounted on the main frame (1); the side wall of the air-drying box (2) cooperates with the supporting wheel (6) to support and rotate; the spiral plate (5) is mounted inside the air-drying box (2); the rotating shaft (4) is mounted on the output end of the driving assembly (3) through an anti-overload mechanism, and one end of the rotating shaft (4) is cooperatively connected to one end of the air-drying box (2); the anti-overload mechanism comprises an anti-overload tube (7), an anti-overload rod (8), an anti-overload A groove (9), a moving block (10), an anti-overload spring plate (11), a pressing plate (12), an inner push plate (13) and a longitudinal rod (14), one end of the anti-overload rod (8) extends into the anti-overload tube (7), the anti-overload groove (9) is arranged on the side wall of the anti-overload rod (8), the moving block (10) is inclined to be slidably mounted on the inner wall of the anti-overload tube (7), the longitudinal rod (14) slides longitudinally on the side wall of the anti-overload tube (7), the inner push plate (13) is arranged to contact the bottom of the moving block (10), and the inner push plate (13) is connected to the longitudinal rod (14).

2. The sludge solid waste treatment system according to claim 1 is characterized in that: The overload protection auxiliary mechanism comprises a fixed ring (15), a reverse thrust spring block (16), a directional ring (17) and a threaded ring (18). The fixed ring (15) is fixedly mounted on the outer wall of the overload protection tube (7), and the reverse thrust spring block (16) is mounted on the inner wall of the fixed ring (15). One end surface of the moving block (10) presses against the reverse thrust spring block (16). The reverse thrust spring block (16) can push the moving block (10) to reset in the reverse direction. The threaded ring (18) is threadedly connected to the outer wall of the clamping tube. The directional ring (17) is directionally slidably mounted on the outer wall of the overload protection tube (7). One end of the longitudinal rod (14) is mounted on the directional ring (17). The longitudinal rod (14) pushes the inner thrust ring to push the moving block (10) to move obliquely, so that the overload protection spring plate (11) is pressed into the overload protection groove (9), so that the overload protection tube (7) and the overload protection rod (8) are linked.

3. The sludge solid waste treatment system according to claim 1 is characterized in that: A adding bucket (19) is installed at the top end of the main frame (1), and one end of the adding bucket (19) extends into the air drying box (2).

4. The sludge solid waste treatment system according to claim 1 is characterized in that: A motor frame (20) is installed at the top end of the main frame (1), and the drive assembly (3) is fixedly installed on the motor frame (20).

5. The sludge solid waste treatment system according to claim 3 is characterized by: The main frame (1) is provided with a collecting hopper (21), and the collecting hopper (21) is installed at the bottom end of the adding hopper (19).

6. The sludge solid waste treatment system and the working method thereof according to claim 1 are characterized in that: The main frame (1) is provided with a drying machine (22), and the drying machine (22) is provided with a drying pipe (23), and one end of the drying pipe (23) extends into the interior of the air drying box (2).

7. The sludge solid waste treatment system according to claim 1 is characterized by: A connecting plate (24) is installed at the bottom end of the side wall of the anti-overload tube (7) and the anti-overload rod (8), and the connecting plate (24) is respectively connected to the rotating shaft (4) and the driving assembly (3).

8. The sludge solid waste treatment system according to claim 1 is characterized by: A longitudinal groove (25) is provided on the side wall of the overload prevention tube (7), and the longitudinal stem is arranged in the longitudinal groove (25) in a sliding guide manner.

9. The sludge solid waste treatment system and working method thereof according to claim 1 is characterized in that: The following steps are involved: Step 1: When the rolling air-drying mechanism needs to be operated, the rolling air-drying mechanism realizes the functions of turning and air-drying the sludge. The driving component (3) outputs power to the air-drying box (2) through the rotating shaft (4), driving the entire air-drying box (2) to rotate back and forth. The bottom of the air-drying box (2) contacts the supporting wheel (6) on the main frame (1). The supporting wheel (6) provides support for the air-drying box (2) and allows the air-drying box (2) to rotate stably. The spiral plate (5) installed inside the air-drying box (2) continuously turns the sludge as the air-drying box (2) rotates. The rotation of the spiral plate (5) causes the sludge to have both axial movement and turning effect in the air-drying box (2). The contact area between the sludge and the hot air increases during the turning process, accelerating the air-drying effect. By controlling the rotation speed of the driving component (3), the turning frequency and residence time of the sludge can be adjusted; Step 2: When the overload protection mechanism is required to operate, the overload protection mechanism is the core protection system of the device. One end of the overload protection rod (8) extends into the overload protection tube (7). The overload protection groove (9) is arranged on the side wall of the overload protection rod (8). The moving block (10) can slide obliquely on the inner wall of the overload protection tube (7) and is connected to the inner push plate (13). The longitudinal rod (14) slides longitudinally on the side wall of the overload protection tube (7) and is connected to the inner push plate (13). The overload protection spring plate (11) and the clamping plate (12) are combined to form an elastic clamping structure. When working normally, the overload protection spring plate (11) is pressed into the overload protection groove (9), so that the overload protection tube (7) and the overload protection rod (8) are linked. When the load is too large, the overload protection spring plate (11) will be disengaged from the overload protection groove (9), disconnecting the linkage and protecting the drive component (3) from damage due to excessive torque. Step 3: When the overload protection auxiliary mechanism needs to be operated, the fixed ring (15) is fixedly installed on the outer wall of the overload protection tube (7), and a reverse thrust spring block (16) is installed inside. The end face of the moving block (10) will press against the reverse thrust spring block (16), and the reverse thrust spring block (16) can push the moving block (10) to reset in the reverse direction. The threaded ring (18) is threadedly connected to the outer wall of the clamping tube, and the preload force can be adjusted. The directional ring (17) slides on the outer wall of the overload protection tube (7) in a directional manner. One end of the longitudinal rod (14) is installed on the directional ring (17). The longitudinal rod (14) pushes the inner push ring, so that the inner push ring pushes the moving block (10) to move tiltedly. In this process, the overload protection spring plate (11) is pressed into the overload protection groove (9), and the linkage state of the overload protection tube (7) and the overload protection rod (8) is restored. The longitudinal groove (25) on the side wall of the overload protection tube (7) ensures that the longitudinal rod (14) slides in the correct direction. Step 4: Sludge solid waste is added into the air drying box (2) through the adding bucket (19), and the dryer (22) is started. Hot air enters the air drying box (2) through the drying pipe (23). The drive component (3) is connected to the rotating shaft (4) through the anti-overload mechanism and is ready. The drive component (3) is started, and the rotating shaft (4) is driven to rotate through the anti-overload mechanism. The rotating shaft (4) drives the air drying box (2) to roll on the supporting wheel (6). The spiral plate (5) in the air drying box (2) continuously turns the sludge, so that The sludge is fully in contact with the hot air, and at the same time, the spiral plate (5) gradually pushes the sludge toward the discharge end. The drying pipe (23) continuously delivers hot air to accelerate the evaporation of water in the sludge. When there is too much sludge or other conditions cause the load to increase, the anti-overload mechanism is activated. The high load causes the anti-overload spring plate (11) to escape from the anti-overload groove (9), the anti-overload pipe (7) and the anti-overload rod (8) are disconnected, and the drive assembly (3) and the rotating shaft (4) are temporarily separated. This separation protects the drive assembly (3) from damage.

Images