Uniform turning equipment for sludge treatment

Abstract

The invention relates to the technical field of sludge treatment, in particular to uniform turning equipment for sludge treatment, which comprises a throwing and turning box, a bearing chassis, a driving building, a refining device and a secondary throwing and turning device, and the two ends of the throwing and turning box are open. The throwing and turning impeller further drives the two eccentric wheels to rotate together in the rotating process, due to the eccentric characteristics of the eccentric wheels, the eccentric wheels drive the sliding rods to move back and forth along the notches through the connecting effect of the connecting rods in the rotating process, and the arc-shaped tension springs are continuously stretched and rebounded; and the spiral arc-shaped tension spring is utilized to crush large sludge particles caked at the top of the arc-shaped partition plate, so that the sludge particles are further refined, and a more uniform material basis is provided for subsequent treatment procedures.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a sludge mixing and turning device for sludge treatment. Background Technology

[0002] With the rapid development of the environmental protection industry, sludge, as a byproduct of wastewater treatment and industrial production, has become a crucial aspect of environmental protection work in terms of its harmless treatment, volume reduction, and resource utilization. In the sludge treatment process, sludge turning is a key step. Turning and loosening the sludge using sludge turning equipment effectively improves its permeability, accelerates moisture evaporation, and promotes thorough mixing with conditioning agents, laying the foundation for subsequent composting and drying processes. Currently, there are many types of sludge turning equipment on the market, mainly including spiral turning machines, chain plate turning machines, and bucket turning machines. Their core working principle is to use the rotation or movement of mechanical structures to throw and turn the sludge from the bottom up. However, in practical applications, existing sludge turning equipment generally suffers from a key technical deficiency: it cannot effectively screen large, agglomerated sludge particles, let alone refine them. During the stacking and transportation of sludge, factors such as gravity, moisture changes, and microbial activity can easily cause large-particle clumps to form. These large sludge particles have a dense internal structure, making it difficult for moisture and air to penetrate. Existing sludge mixing equipment can only perform simple mixing and transfer of the sludge as a whole during the turning process, failing to separate large clumps from small sludge particles, let alone break down and refine the large clumps. This results in a severe uneven distribution of large and small sludge particles in the turned sludge: small sludge particles can fully contact air, resulting in high moisture evaporation efficiency; while large clumps, due to their poor internal permeability, have difficulty evaporating moisture. This not only affects the overall sludge treatment efficiency but also prevents sludge conditioners from fully contacting and reacting with the sludge inside the large particles, reducing the conditioning effect. In view of this, we propose a sludge mixing equipment for sludge treatment to solve the above-mentioned technical problems. Summary of the Invention

[0003] This invention provides the following technical solution: a sludge mixing and turning device for sludge treatment, comprising: The sludge dumping box has openings at both ends and is used for dumping sludge. The supporting chassis is fixedly installed at the bottom of the throwing box to support the throwing box and drive its movement. The driver's cab is fixedly installed on top of the tipping box and is used to drive the load-bearing chassis; The throwing box is equipped with a rotatable impeller for throwing sludge behind the moving trajectory of the throwing box. The throwing impeller is driven by a hydraulic motor that supports the chassis. The inside of the throwing box is also equipped with a refining device for refining sludge blocks and a secondary throwing device for throwing the refined sludge behind the moving trajectory of the throwing box.

[0004] As a preferred embodiment of the present invention, the refining device includes an arc-shaped partition fixedly disposed inside the throwing box, the arc-shaped partition dividing the inside of the throwing box into upper and lower spatial structures, the surface of the arc-shaped partition being evenly provided with multiple perforations, and an arc-shaped tension spring being fixedly disposed on the top of the arc-shaped partition.

[0005] As a preferred embodiment of the present invention, a positioning rod is fixedly provided at the tail end of the throwing box, one end of the arc-shaped tension spring is fixedly installed on the positioning rod, and there are multiple arc-shaped tension springs. The multiple arc-shaped tension springs are distributed at equal distances along the outer wall of the positioning rod, and the ends of the multiple arc-shaped tension springs away from the positioning rod are jointly fixedly installed on a sliding rod.

[0006] As a preferred embodiment of the present invention, a baffle is fixedly installed inside the throwing box. The baffle is located between the trough and the arc-shaped partition, and a channel for accommodating sludge is provided between the top of the baffle and the top wall of the throwing box, which is suitable for the trough to rotate and throw the sludge through the channel to the top of the arc-shaped partition.

[0007] As a preferred embodiment of the present invention, the refining device further includes two upper and lower guide blocks respectively fixedly installed on the two sides of the throwing box, and a bearing slidably installed between the upper and lower guide blocks. The bearing is fixedly installed on the periphery of the slide rod. The throwing box has a slot at the position corresponding to the slide rod to accommodate the movement of the slide rod. The slot is elongated and adapted to the movement trajectory of the slide rod.

[0008] As a preferred embodiment of the present invention, the refining device further includes two eccentric wheels fixedly mounted on the central shaft of the throwing impeller. The two eccentric wheels are symmetrical about the central axis of the throwing box, and a connecting rod is rotatably mounted on the periphery of each of the two eccentric wheels. The end of the connecting rod away from the eccentric wheel is connected to the slide rod through a bearing.

[0009] As a preferred embodiment of the present invention, a plurality of pins for limiting the arc-shaped tension spring are fixedly provided on the slide rod, and the arc-shaped tension spring is clamped between two adjacent pins so that it does not move laterally along the outer wall of the slide rod.

[0010] As a preferred embodiment of the present invention, the secondary throwing device includes a central shaft rotatably installed inside the throwing box, and a plurality of throwing blades distributed in a ring on the outer surface of the central shaft. The central shaft is located at the bottom end of the arc-shaped partition near the baffle and is located inside the baffle. The central shaft drives the plurality of throwing blades to rotate, throwing the sludge that has been refined by the arc-shaped tension spring and fallen into the space at the bottom of the arc-shaped partition backward.

[0011] As a preferred embodiment of the present invention, a driven sprocket is fixedly installed on the central shaft, and a driving sprocket is fixedly installed on the central shaft of the throwing impeller. The driving sprocket and the driven sprocket are positioned opposite each other, and a chain is provided around the driving sprocket and the driven sprocket. This is suitable for the throwing impeller to rotate and, in conjunction with the driving sprocket, the driven sprocket and the throwing blade, drive the central shaft, including the throwing blade, to rotate.

[0012] As a preferred embodiment of the present invention, the throwing box is arranged in an arc-shaped slide, and the height of the rear end of the throwing box is higher than the height of its front end, and the arc-shaped partition is inclined towards the end closer to the baffle.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The hydraulic motor of the chassis drives the turning impeller to rotate, which rolls the dried sludge into the turning box. With the help of the rotation of the turning impeller, the sludge is turned towards the tail end of the turning box. The finer sludge particles are directly thrown out through the tail end of the turning box because they are lighter. The larger clumps are heavier and are rolled up by the rotating turning impeller and fall on the top of the arc-shaped baffle. This initially separates the sludge particles of different sizes, which facilitates the separate treatment of the clumps of sludge particles in the later stage.

[0014] 2. During the rotation of the impeller, two eccentric wheels also rotate together. Due to the eccentricity of the eccentric wheels, the connecting rods cause the sliding rod to move back and forth along the slot during rotation. This causes the arc-shaped tension spring to be continuously stretched and rebounded. During the rebound process, the spiral arc-shaped tension spring crushes the large sludge particles that have clumped on the top of the arc-shaped partition, further refining the sludge particles and providing a more uniform material base for subsequent treatment processes.

[0015] 3. The repeated stretching and rebounding of the arc-shaped tension spring also enhances the fluidity of the sludge at the top of the arc-shaped partition, effectively preventing the accumulation and blockage of sludge at the top of the arc-shaped partition. This allows the broken sludge particles to fall into the space at the bottom of the arc-shaped partition through the holes, ensuring the continuity and stability of the equipment operation.

[0016] 4. When the sluice wheel starts to rotate, the drive sprocket rotates accordingly. Due to the surrounding arrangement of the chain, an effective transmission connection is formed between the drive sprocket and the driven sprocket, which in turn drives the central shaft to rotate. The rotation of the central shaft causes multiple sluice wheels distributed in a ring on its outer surface to rotate as well. During the rotation of these sluice wheels, the sludge that has been refined by the arc-shaped tension spring and fallen into the space at the bottom of the arc-shaped partition is thrown backward, so that the sludge is fully turned and processed inside the equipment, further improving the efficiency and quality of sludge treatment.

[0017] 5. Since the central shaft is located at the bottom of the arc-shaped partition near the baffle, and since the height of the rear end of the throwing box is higher than that of its front end, the fine sludge particles that fall to the bottom of the arc-shaped partition after being refined by the arc-shaped tension spring gather along the inclined surface of the throwing box at the location of the central shaft. Under the rotating throwing action of the throwing blades, these fine sludge particles are evenly thrown backward, avoiding local accumulation of sludge inside the equipment and ensuring the uniformity of sludge treatment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the throwing box in this invention; Figure 3 This is a schematic diagram of the outer contour structure of the throwing box in this invention; Figure 4 This is a side sectional view of the throwing box in this invention; Figure 5 In this invention Figure 4 A magnified structural diagram of part A; Figure 6 This is a schematic diagram of the refining device in the present invention; Figure 7 This is a schematic diagram of the arc-shaped partition in the present invention; Figure 8 In this invention Figure 7 A magnified structural diagram of part B.

[0019] In the diagram: 100, Tilting box; 101, Tilting impeller; 102, Groove; 200, Carrier chassis; 300, Driver's cab; 400, Refining device; 401, Arc-shaped partition; 402, Leakage hole; 403, Positioning rod; 404, Arc-shaped tension spring; 405, Slide rod; 406, Baffle; 407, Guide block; 408, Bearing; 409, Eccentric wheel; 4010, Connecting rod; 4011, Pin; 500, Secondary tilting device; 501, Central shaft; 502, Tilting blade; 503, Driven sprocket; 504, Driven sprocket; 505, Chain. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 8 The technical solution provided by the present invention specifically includes the following embodiments: A sludge-tumbling device for sludge treatment includes a sludge-tumbling box 100, a supporting chassis 200, a driver's cab 300, a sludge-refining device 400, and a secondary sludge-tumbling device 500. The sludge-tumbling box 100 has openings at both ends for sludge ... The inside of the 100 is equipped with a rotatable impeller 101 for throwing sludge behind the moving trajectory of the throwing box 100. The throwing impeller 101 is driven by a hydraulic motor supporting the chassis 200. The inside of the throwing box 100 is also equipped with a refining device 400 for refining sludge blocks and a secondary throwing device 500 for throwing the refined sludge behind the moving trajectory of the throwing box 100. The throwing box 100 is arranged in an arc-shaped slide, and the height of the tail end of the throwing box 100 is higher than the height of its head end.

[0022] For further details, please refer to [link / reference]. Figure 2 , Figure 6 , Figure 7 As shown: The refining device 400 includes an arc-shaped partition 401 fixedly installed inside the throwing box 100. The arc-shaped partition 401 is inclined towards the end near the baffle 406. The arc-shaped partition 401 divides the interior of the throwing box 100 into upper and lower spatial structures. Multiple holes 402 are evenly opened on the surface of the arc-shaped partition 401. An arc-shaped tension spring 404 is fixedly installed on the top of the arc-shaped partition 401. The hydraulic motor of the chassis 200 drives the turning impeller 101 to rotate, which rolls the dried sludge into the turning box 100. With the help of the rotation of the turning impeller 101, the sludge is turned towards the tail end of the turning box 100. The finer sludge particles are directly thrown out through the tail end of the turning box 100 because they are lighter. The larger, clumped particles are heavier and are rolled up by the rotating turning impeller 101 and fall on the top of the arc-shaped partition 401. This initially separates the sludge particles of different sizes, which facilitates the separate treatment of the clumped sludge particles in the subsequent process.

[0023] For further details, please refer to [link / reference]. Figure 2 , Figure 6 As shown: A positioning rod 403 is fixedly installed at the tail end of the throwing box 100. One end of an arc-shaped tension spring 404 is fixedly installed on the positioning rod 403. There are multiple arc-shaped tension springs 404, which are evenly distributed along the outer wall of the positioning rod 403. The ends of the multiple arc-shaped tension springs 404 away from the positioning rod 403 are jointly fixedly installed with a sliding rod 405. A baffle 406 is fixedly installed inside the throwing box 100. The baffle 406 is located between the slot 102 and the arc-shaped partition 401. A channel for sludge to pass through is provided between the top of the baffle 406 and the top wall of the throwing box 100, which is suitable for the slot 102 to rotate and allow the sludge to pass through. The channel throws the material to the top of the arc-shaped partition 401. The refining device 400 also includes two eccentric wheels 409 fixedly mounted on the central shaft of the throwing impeller 101. The two eccentric wheels 409 are symmetrical about the central axis of the throwing box 100, and each of the two eccentric wheels 409 is rotatably mounted with a connecting rod 4010. The end of the connecting rod 4010 away from the eccentric wheel 409 is connected to the slide rod 405 through a bearing. A plurality of pins 4011 for limiting the arc-shaped tension spring 404 are fixedly mounted on the slide rod 405. The arc-shaped tension spring 404 is clamped between two adjacent pins 4011 so that it does not move laterally along the outer wall of the slide rod 405. During the rotation of the impeller 101, two eccentric wheels 409 also rotate. Due to the eccentric nature of the eccentric wheels 409, during rotation, the eccentric wheels 409, through the connecting rod 4010, drive the sliding rod 405 to reciprocate along the slot 102, causing the arc-shaped tension spring 404 to be continuously stretched and rebounded. During the rebound process, the spiral arc-shaped tension spring 404 breaks up the large sludge particles clumped on the top of the arc-shaped partition 401, further refining the sludge particles and providing a more uniform material base for subsequent treatment processes. During the repeated stretching and rebounding of the arc-shaped tension spring 404, the fluidity of the sludge at the top of the arc-shaped partition 401 is enhanced, effectively preventing the accumulation and blockage of sludge at the top of the arc-shaped partition 401. This allows the broken sludge particles to fall into the bottom space of the arc-shaped partition 401 through the leakage hole 402, ensuring the continuity and stability of the equipment operation. In addition, the limiting effect of the pin 4011 on the arc-shaped tension spring 404 ensures the stability of the arc-shaped tension spring 404 during the stretching and rebounding process, avoiding the decrease in sludge treatment effect caused by the lateral movement of the arc-shaped tension spring 404.

[0024] For further details, please refer to [link / reference]. Figure 8 As shown: The refining device 400 also includes two upper and lower guide blocks 407 that are fixedly installed on the two sides of the throwing box 100, and a bearing 408 that is slidably installed between the upper and lower guide blocks 407. The bearing 408 is fixedly installed on the periphery of the slide rod 405. The throwing box 100 has a slot 102 at the position corresponding to the slide rod 405 to accommodate the movement of the slide rod 405. The slot 102 is elongated and adapted to the movement trajectory of the slide rod 405. The upper and lower guide blocks 407 provide stable support and guidance for the sliding of the bearing 408, ensuring that the bearing 408 remains stable during movement without shaking or shifting. The bearing 408 is fixedly installed on the periphery of the slide rod 405, further providing precise support and guidance to the slide rod 405. It can move back and forth along the slot 102 with the slide rod 405, assisting the arc-shaped tension spring 404 in better completing the crushing and processing of large particles of sludge. The long strip slot 102 opened in the tipping box 100 corresponding to the position of the slide rod 405 provides precise space for the movement of the slide rod 405, enabling the slide rod 405 to reciprocate along a predetermined trajectory, ensuring the orderly progress of the entire sludge treatment process.

[0025] For further details, please refer to [link / reference]. Figure 6 As shown: The secondary throwing device 500 includes a central shaft 501 rotatably mounted inside the throwing box 100, and multiple throwing blades 502 arranged in a ring on the outer surface of the central shaft 501. The central shaft 501 is located at the bottom of the arc-shaped partition 401 near the baffle 406 and is located inside the baffle 406. The central shaft 501 drives the multiple throwing blades 502 to rotate, throwing the sludge, which has been refined by the arc-shaped tension spring 404 and falls into the space at the bottom of the arc-shaped partition 401, backward. A driven sprocket 503 is fixedly installed on the central shaft 501, and a driving sprocket 504 is fixedly installed on the central shaft of the tumbling impeller 101. The driving sprocket 504 and the driven sprocket 503 are positioned correspondingly, and a chain 505 is provided around the driving sprocket 504 and the driven sprocket 503. This chain is suitable for the tumbling impeller 101 to rotate and, in conjunction with the driving sprocket 504, the driven sprocket 503 and the tumbling blade 502, drive the central shaft 501, including the tumbling blade 502, to rotate. When the sluice wheel 101 starts to rotate, the drive sprocket 504 rotates accordingly. Due to the surrounding arrangement of the chain 505, an effective transmission connection is formed between the drive sprocket 504 and the driven sprocket 503, which in turn drives the central shaft 501 to rotate. The rotation of the central shaft 501 causes the multiple sluice wheels 502, which are distributed in a ring on its outer surface, to rotate as well. During the rotation, these sluice wheels 502 throw the sludge, which has been refined by the arc-shaped tension spring 404 and fallen into the space at the bottom of the arc-shaped partition 401, backward, so that the sludge is fully turned and processed inside the equipment, further improving the efficiency and quality of sludge treatment. At the same time, the central shaft 501 is located at the bottom of the arc-shaped partition 401 near the baffle 406. Since the height of the tail end of the sluice wheel 100 is higher than that of its head end, the fine sludge particles that have been refined by the arc-shaped tension spring 404 and fallen into the bottom of the arc-shaped partition 401 move along the sluice wheel 100. The inclined surfaces of the sludge particles 501 converge at the location of the central shaft 501. Under the rotating and tumbling action of the tumbling blades 502, these fine sludge particles are evenly thrown backward, avoiding local accumulation of sludge inside the equipment and ensuring the uniformity of sludge treatment. Moreover, the chain 505 makes the transmission between the driving sprocket 504 and the driven sprocket 503 more stable and reliable. Even under high-load working conditions, it can ensure the normal rotation of the central shaft 501 and the tumbling blades 502 without transmission failure, thus ensuring the continuity and stability of the entire sludge treatment process. In addition, this transmission structure design also has a certain energy-saving effect. Through the reasonable transmission ratio setting, the hydraulic motor of the chassis 200 can efficiently drive the central shaft 501 and the tumbling blades 502 to rotate while driving the tumbling impeller 101 to rotate, reducing energy loss and lowering the operating cost of the equipment.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A sludge mixing and turning device for sludge treatment, characterized in that: include: The sludge dumping box (100) has openings at both ends for dumping sludge; The supporting chassis (200) is fixedly installed at the bottom of the throwing box (100) to support the throwing box (100) and drive the throwing box (100) to move; The driver's cab (300) is fixedly installed on the top of the tipping box (100) and is used to drive the load-bearing chassis (200). The throwing box (100) is rotatably equipped with a throwing impeller (101) for throwing sludge behind the moving trajectory of the throwing box (100), and the throwing impeller (101) is driven by a hydraulic motor of the supporting chassis (200). The inside of the throwing box (100) is also provided with a refining device (400) for refining sludge blocks and a secondary throwing device (500) for throwing the refined sludge behind the moving trajectory of the throwing box (100).

2. The sludge mixing and turning device for sludge treatment according to claim 1, characterized in that: The refining device (400) includes an arc-shaped partition (401) fixedly installed inside the throwing box (100). The arc-shaped partition (401) divides the interior of the throwing box (100) into upper and lower spatial structures. Multiple holes (402) are evenly opened on the surface of the arc-shaped partition (401). An arc-shaped tension spring (404) is fixedly installed on the top of the arc-shaped partition (401).

3. The sludge mixing and turning device for sludge treatment according to claim 2, characterized in that: The tail end of the throwing box (100) is fixedly provided with a positioning rod (403). One end of the arc-shaped tension spring (404) is fixedly installed on the positioning rod (403). There are multiple arc-shaped tension springs (404). The multiple arc-shaped tension springs (404) are distributed at equal distances along the outer wall of the positioning rod (403). The ends of the multiple arc-shaped tension springs (404) away from the positioning rod (403) are jointly fixedly installed with a slide rod (405).

4. The sludge mixing and turning device for sludge treatment according to claim 3, characterized in that: A baffle (406) is fixedly installed inside the throwing box (100). The baffle (406) is located between the slot (102) and the arc-shaped partition (401). A channel for sludge to pass through is provided between the top of the baffle (406) and the top wall of the throwing box (100), which is suitable for the slot (102) to rotate and throw the sludge through the channel to the top of the arc-shaped partition (401).

5. A sludge-mixing device for sludge treatment according to claim 4, characterized in that: The refining device (400) also includes two upper and lower guide blocks (407) fixedly installed on the two sides of the throwing box (100), and a bearing (408) slidably installed between the upper and lower guide blocks (407). The bearing (408) is fixedly installed on the periphery of the slide rod (405). The throwing box (100) has a slot (102) at the position corresponding to the slide rod (405) to accommodate the movement of the slide rod (405). The slot (102) is elongated and adapted to the movement trajectory of the slide rod (405).

6. A sludge-mixing device for sludge treatment according to claim 5, characterized in that: The refining device (400) also includes two eccentric wheels (409) fixedly mounted on the central shaft of the throwing impeller (101). The two eccentric wheels (409) are symmetrical about the central axis of the throwing box (100), and a connecting rod (4010) is rotatably mounted on the periphery of each of the two eccentric wheels (409). The end of the connecting rod (4010) away from the eccentric wheel (409) is connected to the slide rod (405) through a bearing.

7. A sludge-mixing device for sludge treatment according to claim 6, characterized in that: The slide bar (405) is fixedly provided with a plurality of pins (4011) for limiting the arc-shaped tension spring (404). The arc-shaped tension spring (404) is clamped between two adjacent pins (4011) so that it will not move laterally along the outer wall of the slide bar (405).

8. A sludge-mixing device for sludge treatment according to claim 7, characterized in that: The secondary throwing device (500) includes a central shaft (501) rotatably installed inside the throwing box (100) and a plurality of throwing blades (502) distributed in a ring on the outer surface of the central shaft (501). The central shaft (501) is located at the bottom of the arc-shaped partition (401) near the baffle (406) and is located inside the baffle (406). The central shaft (501) drives the plurality of throwing blades (502) to rotate, throwing the sludge that has been refined by the arc-shaped tension spring (404) and fallen into the space at the bottom of the arc-shaped partition (401) backward.

9. A sludge-mixing device for sludge treatment according to claim 8, characterized in that: A driven sprocket (503) is fixedly installed on the central shaft (501), and a driving sprocket (504) is fixedly installed on the central shaft of the tumbling impeller (101). The driving sprocket (504) and the driven sprocket (503) are positioned correspondingly, and a chain (505) is provided around the driving sprocket (504) and the driven sprocket (503). This is suitable for the tumbling impeller (101) to rotate, and then drive the central shaft (501) including the tumbling impeller (502) to rotate in conjunction with the driving sprocket (504), the driven sprocket (503) and the tumbling blade (502).

10. A sludge-mixing device for sludge treatment according to claim 9, characterized in that: The throwing box (100) is arranged in an arc-shaped slide, and the height of the rear end of the throwing box (100) is higher than the height of its front end. The arc-shaped partition (401) is inclined towards the end closer to the baffle (406).

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