Sewage sedimentation treatment process and sludge cleaning machine

Abstract

The application provides a sewage sedimentation treatment process and a sludge cleaning machine. The sewage sedimentation treatment process comprises the following steps: performing conveying and laying operation on a sedimentation tank, so that at least one sludge conveying belt is hung at the bottom of the sedimentation tank, one end of the at least one sludge conveying belt is arranged at the center of the sedimentation tank, the other end of the at least one sludge conveying belt is arranged at the peripheral wall of the sedimentation tank, and the at least one sludge conveying belt is arranged around the sludge outlet at the center of the sedimentation tank; performing sewage sedimentation treatment on the sedimentation tank, so that the sewage in the sedimentation tank is sedimented into sludge on the sludge conveying belt; performing intermittent driving operation on the sludge conveying belt, so that the two ends of the sludge conveying belt are intermittently driven, and the sedimented sludge on the sludge conveying belt is conveyed to the sludge outlet; and performing intermittent discharge treatment on the sludge at the sludge outlet, so that the sludge is intermittently discharged out of the sedimentation tank. The sewage sedimentation treatment process has good cleaning effect, high cleaning efficiency and low cleaning cost.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater sedimentation treatment process and a sludge cleaning machine. Background Technology

[0002] Sedimentation tanks are a crucial component of wastewater treatment processes, playing a vital role in separating sludge from water. This effectively reduces the concentration of suspended solids in the effluent, improving its quality. However, wastewater treatment systems often involve the use of large quantities of chemical agents, resulting in significant sludge production. This leads to sludge accumulation in the dead corners at the bottom of the sedimentation tank, making it difficult to remove. This accumulation causes localized sludge buildup, hindering sludge removal from the sedimentation tank. Consequently, the turbidity of the effluent increases, water quality deteriorates, and wastewater fails to meet discharge standards.

[0003] Currently, sludge scrapers are commonly used to remove sludge from the bottom of sedimentation tanks. However, traditional radial flow sedimentation tanks use scrapers with rollers mounted on the scraper blades. These rollers support the rotation of the truss and reduce friction. Because the contact area between the rollers and the tank bottom is small, the friction is high, easily leading to roller deformation and reduced rotational smoothness. This necessitates frequent roller replacement, increasing maintenance costs and burden. Furthermore, the sedimentation tank needs to be emptied of wastewater for roller replacement, impacting wastewater treatment efficiency. For example, Chinese invention patent application number 201010515319.X proposes connecting a sliding plate below the scraper blade. This allows the sliding plate to replace the rollers, enabling direct contact between the sliding plate and the sedimentation tank bottom. The patent also specifies the material of the sliding plate to reduce friction and wear, thus reducing the frequency of replacement. While this reduces sedimentation tank maintenance costs and mitigates the impact on wastewater treatment efficiency... However, it still uses a rotating shaft to drive the scraper to remove sludge from the sedimentation tank. As mentioned in Chinese invention patent application number 202011166941.4, in actual operation, due to the high power required to drive the scraper, the scraper typically only starts cleaning after the sludge in the sedimentation tank has settled for a period of time—that is, intermittent scraping. During this intermittent period, sludge continuously accumulates and deposits at the bottom of the sludge tank. The deposited sludge is prone to compaction, resulting in sludge stratification. The bottom layer is compacted sludge, the middle layer is looser sludge, and the top layer is freshly settled sludge. The scraper blades of the sludge scraper are not easy to loosen the compacted sludge. Moreover, the sludge in the middle layer and the sludge in the top layer tend to accumulate and fall behind the scraper blades during scraping, making it difficult for the scraper blades to concentrate the bottom sludge towards the center of the pool. Even after multiple scrapings to clear the flow, there is still a situation where the compacted sludge cannot be effectively cleaned, resulting in low cleaning efficiency and poor cleaning effect. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sewage sedimentation treatment process and sludge cleaning machine with better cleaning effect, higher cleaning efficiency and lower cleaning cost.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A wastewater sedimentation treatment process includes the following steps:

[0007] A conveying and laying operation is performed on the sedimentation tank so that at least one sludge conveyor belt is suspended at the bottom of the sedimentation tank, one end of the at least one sludge conveyor belt is located at the center of the sedimentation tank, the other end of the at least one sludge conveyor belt is located at the periphery of the sedimentation tank, and at least one sludge conveyor belt is arranged around the sludge outlet at the center of the sedimentation tank.

[0008] Wastewater is treated by sedimentation in the sedimentation tank so that the sludge in the sedimentation tank is deposited onto the sludge conveyor belt.

[0009] The sludge conveyor belt is subjected to intermittent transmission operation to drive the two ends of the sludge conveyor belt to be intermittently transmitted to the sludge outlet.

[0010] The sludge at the sludge outlet is subjected to intermittent discharge treatment so that the sludge is intermittently discharged from the sedimentation tank.

[0011] In one embodiment, the width of the sludge conveyor belt disposed at the center of the sedimentation tank is the same as the width of the sludge conveyor belt disposed at the periphery of the sedimentation tank, and at least a portion of the sludge conveyor belt is wrinkled in the width direction.

[0012] In one embodiment, the number of sludge conveyor belts is two or more, and at least a portion of each sludge conveyor belt is wrinkled in the width direction to make the sludge conveyor belt form a double-arc fan shape.

[0013] In one embodiment, the sludge conveyor belt is subjected to intermittent transmission operation, specifically including the following steps:

[0014] An active roller is used to intermittently rotate one end of the sludge conveyor belt located on the periphery of the sedimentation tank, so that the active roller is located at one end of the sludge conveyor belt and the sludge conveyor belt is located on the outer periphery of the active roller. The active roller meshes with the sludge conveyor belt and drives the sludge conveyor belt to rotate intermittently.

[0015] A driven roller is used to intermittently drive one end of the sludge conveyor belt located at the center of the sedimentation tank, so that the driven roller is located at one end of the sludge conveyor belt and the sludge conveyor belt is located on the outer periphery of the driven roller. The driven roller meshes with the sludge conveyor belt, and the sludge conveyor belt drives the driven roller to rotate intermittently.

[0016] In one embodiment, the sludge at the sludge outlet is discharged by means of intermittent spiral extrusion.

[0017] In one embodiment, after the step of conveying and laying the sedimentation tank, and before the step of treating the sedimentation tank with wastewater, the wastewater sedimentation treatment process further includes the following steps:

[0018] Wastewater is treated to flow into the sedimentation tank from the inlet at the center of the sedimentation tank.

[0019] In one embodiment, after the step of treating the wastewater inflow into the sedimentation tank, at least one step of the wastewater sedimentation treatment process is accompanied by a filtration and discharge treatment of the wastewater, so that the wastewater is filtered and overflows from an overflow port on the periphery of the sedimentation tank.

[0020] A sludge cleaning machine is used in the wastewater sedimentation treatment process described in any of the above embodiments, the sludge cleaning machine comprising:

[0021] A suspension bracket, which is used to hang the sedimentation tank;

[0022] At least one transmission component, wherein at least one of the transmission components is disposed on the suspension bracket;

[0023] At least one sludge conveyor belt is provided, and at least one of the sludge conveyor belts is correspondingly arranged with at least one of the transmission components. One end of the at least one sludge conveyor belt is used to be located at the center of the sedimentation tank, and the other end of the at least one sludge conveyor belt is used to be located at the peripheral wall of the sedimentation tank. The at least one sludge conveyor belt is used to surround the sludge outlet at the center of the sedimentation tank. The sludge conveyor belt is sleeved on the corresponding transmission component, and the transmission component drives the sludge conveyor belt to move from the center of the sedimentation tank toward the peripheral wall.

[0024] In one embodiment, the sludge conveyor belt intersects the bottom surface of the sedimentation tank on a side away from the bottom of the sedimentation tank, and the sludge conveyor belt is inclined toward the sludge outlet of the sedimentation tank in a central direction along the peripheral wall of the sedimentation tank.

[0025] In one embodiment, the suspension bracket includes a main suspension rod, an inner mounting frame, an outer mounting frame, and at least one mounting support rod. The main suspension rod is positioned at the center of the sedimentation tank. The inner and outer mounting frames are both arranged around the outer periphery of the main suspension rod and are coaxially arranged. The inner mounting frame is connected to the main suspension rod, and the outer mounting frame is connected to the main suspension rod via the mounting support rod. The sludge conveyor belt is sleeved on the inner and outer mounting frames. At least a portion of the transmission assembly is mounted on the mounting support rod, and the transmission assembly drives the sludge conveyor belt to move in the direction of the radius of the outer mounting frame or the radius of the inner mounting frame.

[0026] Compared with the prior art, the present invention has at least the following advantages:

[0027] The wastewater sedimentation treatment process of this invention involves suspending a sludge conveyor belt at the bottom of a sedimentation tank. This conveyor belt is positioned around the sludge outlet at the center of the sedimentation tank, covering most of the tank bottom except for the sludge outlet at the center. Wastewater sedimentation is then performed in the sedimentation tank, where flocculation and sedimentation separate the sludge from the water. The settled sludge deposits on the sludge conveyor belt, which then acts as a sludge carrier. The sludge conveyor belt is then intermittently driven, meaning it is driven intermittently... Sludge is conveyed towards the sludge outlet at the center of the sedimentation tank. Both compacted and loose sludge can be easily and simultaneously transported to the sludge outlet at the center of the sedimentation tank by the sludge conveyor belt. The sludge is collected at the sludge outlet at the center of the sedimentation tank solely through the drive of the sludge conveyor belt, avoiding the need for a powerful rotating shaft to drive scrapers for sludge cleaning. This significantly reduces the cost of sludge cleaning in the sedimentation tank. Combined with the sludge discharge from the sludge outlet, this effectively improves the sludge cleaning efficiency of the sedimentation tank and ensures the cleaning effect. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a flowchart of a wastewater sedimentation treatment process according to an embodiment of the present invention;

[0030] Figure 2This is a schematic diagram of the sludge cleaning machine according to one embodiment of the present invention;

[0031] Figure 3 for Figure 2 A partial view of the sludge cleaning machine shown;

[0032] Figure 4 for Figure 2 Another partial view of the sludge cleaning machine shown;

[0033] Figure 5 for Figure 4 A magnified view of part A of the sludge cleaning machine shown;

[0034] Figure 6 for Figure 2 A magnified view of part B of the sludge cleaning machine shown;

[0035] Figure 7 for Figure 2 A partial sectional view of the sludge cleaning machine shown;

[0036] Figure 8 for Figure 7 A magnified view of point C on the sludge cleaning machine shown;

[0037] Figure 9 for Figure 7 A magnified view of part D of the sludge cleaning machine shown;

[0038] Figure 10 for Figure 2 Another partial view of the sludge cleaning machine shown;

[0039] Figure 11 for Figure 2 Another partial sectional view of the sludge cleaning machine. Detailed Implementation

[0040] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] This application provides a wastewater sedimentation treatment process. The wastewater sedimentation treatment process includes the following steps: laying a sedimentation tank with a conveyor belt suspended at the bottom of the sedimentation tank, one end of the conveyor belt positioned at the center of the sedimentation tank, the other end positioned on the periphery of the sedimentation tank, and the conveyor belt surrounding the sludge outlet at the center of the sedimentation tank; performing wastewater sedimentation treatment in the sedimentation tank to settle sludge onto the conveyor belt; intermittently driving the conveyor belt to intermittently drive both ends of the conveyor belt to transport the settled sludge to the sludge outlet; and intermittently discharging the sludge from the sludge outlet to the sedimentation tank.

[0044] The aforementioned wastewater sedimentation treatment process involves suspending a sludge conveyor belt at the bottom of the sedimentation tank. This conveyor belt is positioned around the sludge outlet at the center of the tank, covering most of the bottom area except for the central sludge outlet. Wastewater sedimentation then occurs, separating the sludge from the water through flocculation and sedimentation. The settled sludge accumulates on the conveyor belt, which then acts as a sludge carrier. The conveyor belt is then intermittently driven, moving intermittently towards… Sludge is conveyed to the sludge outlet at the center of the sedimentation tank. At this time, whether the sludge is compacted or loose, it can be easily and once conveyed to the sludge outlet at the center of the sedimentation tank by the sludge conveyor belt. The sludge can be collected at the sludge outlet at the center of the sedimentation tank by the sludge conveyor belt alone. This avoids the need to use a high-power shaft to drive the scraper to clean the sludge, which can reduce the sludge cleaning cost of the sedimentation tank. Then, in conjunction with the discharge of sludge at the sludge outlet, the sludge cleaning efficiency of the sedimentation tank is effectively improved and the cleaning effect of the sludge in the sedimentation tank is ensured.

[0045] It should be noted that the separation of sludge and water in the wastewater by flocculation and sedimentation in the input sedimentation tank is commonly achieved by PAC and / or PAM. Furthermore, the intermittent transmission operation of the sludge conveyor belt is generally achieved by using a motor in conjunction with a commonly used reducer to achieve intermittent transmission of the sludge conveyor belt at a relatively low speed.

[0046] To better understand the wastewater sedimentation treatment process of this application, the following further explanation is provided:

[0047] Please see Figure 1 One embodiment of the wastewater sedimentation treatment process includes the following steps:

[0048] S100. A conveying and laying operation is performed on the sedimentation tank so that at least one sludge conveyor belt is suspended at the bottom of the sedimentation tank. One end of the at least one sludge conveyor belt is located at the center of the sedimentation tank, and the other end of the at least one sludge conveyor belt is located on the peripheral wall of the sedimentation tank. Furthermore, the at least one sludge conveyor belt is positioned around the sludge outlet at the center of the sedimentation tank. This means that the sludge conveyor belt covers most of the bottom area of ​​the sedimentation tank, excluding the sludge outlet at the center, thus enabling the sludge conveyor belt to effectively carry the sludge formed in the sedimentation tank.

[0049] S200. Wastewater sedimentation treatment is carried out in the sedimentation tank to allow sludge to settle onto the sludge conveyor belt. It can be understood that the wastewater entering the sedimentation tank undergoes sedimentation treatment, which involves adding flocculants and other chemical substances to the sedimentation tank to promote and accelerate the separation of sludge and water and the settling of the sludge. The specific flocculants added, the order of addition, or the intervals are the same as in conventional sedimentation tank flocculation and sedimentation processes, and will not be discussed further in this application. Instead, wastewater sedimentation is carried out after a sludge conveyor belt is suspended at the bottom of the sedimentation tank. At this time, the settled sludge in the wastewater is carried on the sludge conveyor belt, which facilitates the transport of most of the sludge in the sedimentation tank and its collection at the sludge outlet in the center of the sedimentation tank.

[0050] S300. The sludge conveyor belt is intermittently driven to drive the two ends of the sludge conveyor belt intermittently, so that the sludge settled on the sludge conveyor belt is conveyed to the sludge outlet. It is understandable that intermittent operation of the sludge conveyor belt allows for the efficient transport of both compacted and loose sludge to the sludge outlet at the center of the sedimentation tank, as most of the settled sludge is carried on it. This ensures that even with intermittent operation, the sludge is transported effectively and completely to the outlet in one go, reducing sludge cleaning costs while maintaining efficient sludge collection and cleaning. Furthermore, the lower power consumption of the sludge conveyor belt compared to the power required for a rotating shaft to drive a scraper further reduces sludge cleaning costs and improves cleaning efficiency.

[0051] S400. Intermittent discharge treatment is performed on the sludge at the sludge outlet to ensure that the sludge is discharged from the sedimentation tank intermittently. This means that while the sludge conveyor belt is transporting the sludge from the sedimentation tank to the sludge outlet, the sludge at the outlet is simultaneously and intermittently discharged. This timely discharge of the sludge collected at the outlet reduces sludge accumulation and compaction, thus achieving a better sludge cleaning effect in the sedimentation tank.

[0052] The aforementioned wastewater sedimentation treatment process involves suspending a sludge conveyor belt at the bottom of the sedimentation tank, with the belt positioned around the sludge outlet at the center of the tank. This allows for wastewater sedimentation treatment, specifically flocculation and sedimentation of the input wastewater to separate the sludge from the water. The settled sludge accumulates on the conveyor belt, which then serves to support the sludge. The conveyor belt is then intermittently driven, moving intermittently towards the sludge outlet at the center of the sedimentation tank. During the conveying process, both compacted and loose sludge can be easily and instantly transported by the sludge conveyor belt to the sludge outlet at the center of the sedimentation tank. The sludge can be collected at the sludge outlet in the center of the sedimentation tank simply by the drive of the sludge conveyor belt, avoiding the need to use a high-powered rotating shaft to drive a scraper to clean the sludge. This effectively reduces the cost of sludge cleaning in the sedimentation tank. Then, in conjunction with the discharge of sludge from the sludge outlet, the cleaning efficiency of the sludge in the sedimentation tank is effectively improved, and the cleaning effect of the sludge in the sedimentation tank is ensured.

[0053] In one embodiment, the width of the sludge conveyor belt located at the center of the sedimentation tank is the same as the width of the sludge conveyor belt located on the periphery of the sedimentation tank, and at least a portion of the sludge conveyor belt is wrinkled in the width direction. Wrinkling means forming an irregular wave shape in the width direction of the sludge conveyor belt, resulting in irregular peaks and troughs, thus reducing the overall width of the sludge conveyor belt at this location. The fact that the width of the sludge conveyor belt located at the center of the sedimentation tank is the same as the width of the sludge conveyor belt located on the periphery of the sedimentation tank means that the actual width of the sludge conveyor belt is the same at all points. The wrinkling of at least a portion of the sludge conveyor belt in the width direction means that the wrinkling is more severe closer to the sludge outlet at the center of the sedimentation tank, resulting in a smaller overall width at this location. This achieves the goal of enabling the sludge conveyor belt to... The sludge outlet is positioned around the center of the sedimentation tank. As the sludge conveyor belt moves along the line connecting the center and the perimeter of the sedimentation tank, the degree of wrinkling in the width direction of different parts of the sludge conveyor belt changes with different positions. This results in the sludge conveyor belt having a higher degree of wrinkling as it moves towards the center of the sedimentation tank, and a lower degree of wrinkling as it moves towards the perimeter of the sedimentation tank. This ensures smooth transmission of the sludge conveyor belt around the sludge outlet at the center of the sedimentation tank, thereby better ensuring the sludge conveying effect in the sedimentation tank, and thus better ensuring the sludge cleaning effect and cleaning efficiency of the sedimentation tank.

[0054] In one embodiment, the number of sludge conveyor belts is two or more, and at least a portion of each sludge conveyor belt is wrinkled in the width direction to make the sludge conveyor belt form a double-arc fan shape. It is understandable that when there is only one sludge conveyor belt, the wrinkling degree of the portion of the sludge conveyor belt near the center of the sedimentation tank is relatively high, affecting the smoothness of the sludge conveyor belt transmission. That is, a higher power motor is required to drive the sludge conveyor belt, and the problem of the sludge conveyor belt twisting and jamming is prone to occur, increasing the maintenance cost of the sludge conveyor belt transmission, and thus increasing the sludge treatment cost of the sedimentation tank. Therefore, in order to better ensure the smoothness of the sludge conveyor belt transmission and to better reduce the sludge cleaning cost of the sedimentation tank, in this application, the number of sludge conveyor belts is two or more, and at least a portion of each sludge conveyor belt is wrinkled in the width direction, so that the sludge conveyor belt is in the shape of a double arc fan. It should be noted that the double arc fan shape is a structure formed by cutting off the central corner of the fan shape by another coaxial arc. The double arc fan shaped sludge conveyor belt has higher transmission smoothness, and can achieve effective transmission under the drive of a lower power motor, thereby better ensuring the sludge cleaning effect of the sedimentation tank and better reducing the sludge cleaning cost of the sedimentation tank.

[0055] In one embodiment, the sludge conveyor belt is subjected to intermittent transmission operation, specifically including the following steps:

[0056] An active roller is used to intermittently rotate one end of the sludge conveyor belt located on the periphery of the sedimentation tank. The active roller is positioned at one end of the sludge conveyor belt, and the sludge conveyor belt is located on the outer periphery of the active roller. The active roller meshes with the sludge conveyor belt, and the active roller drives the sludge conveyor belt to rotate intermittently.

[0057] A driven roller is used to intermittently rotate one end of the sludge conveyor belt located at the center of the sedimentation tank. This is achieved by positioning the driven roller at one end of the sludge conveyor belt, with the sludge conveyor belt located on the outer periphery of the driven roller. The driven roller meshes with the sludge conveyor belt, and the sludge conveyor belt drives the driven roller to rotate intermittently.

[0058] It is understandable that by using an active roller to tension and engage the sludge conveyor belt at the end near the center of the sedimentation tank, and a passive roller to tension and engage the sludge conveyor belt at the end near the perimeter of the sedimentation tank, the transmission of the sludge conveyor belt along the line connecting the center and the perimeter of the sedimentation tank is effectively realized. This enables the sludge conveyor belt to transport and collect the sludge from the sedimentation tank to the sludge outlet, ensuring the collection and discharge of sludge.

[0059] In one embodiment, the sludge at the sludge outlet is discharged through intermittent spiral extrusion. It is understood that when a large amount of sludge accumulates at the sludge outlet, the sludge is discharged intermittently to accommodate the conveyor belt. If a large amount of compacted sludge is discharged at a given time, an "arch" effect can easily form at the sludge outlet, affecting the timely and effective discharge of sludge and consequently impacting the sludge cleaning effect in the sedimentation tank. To better ensure the sludge cleaning effect in the sedimentation tank, this application incorporates a spiral rod at the sludge outlet to discharge the sludge, effectively improving the sludge discharge efficiency and thus the overall sludge treatment effect in the sedimentation tank.

[0060] In one embodiment, after the step of conveying and laying the sedimentation tank and before the step of treating the sedimentation tank with wastewater, the wastewater sedimentation treatment process further includes the following step: treating the sedimentation tank with wastewater inflow so that wastewater flows into the sedimentation tank from the inlet at the center of the sedimentation tank.

[0061] In one embodiment, after the step of treating the wastewater inflow into the sedimentation tank, at least one step of the wastewater sedimentation treatment process is accompanied by a wastewater filtration and discharge treatment, so that the wastewater is filtered and overflows from an overflow port on the periphery of the sedimentation tank.

[0062] This application also provides a sludge cleaning machine for use in the wastewater sedimentation treatment process of any of the above embodiments. The sludge cleaning machine includes a suspension bracket, at least one transmission component, and at least one sludge conveyor belt. The suspension bracket is used to hang on the sedimentation tank. At least one transmission component is disposed on the suspension bracket. At least one sludge conveyor belt is correspondingly disposed to at least one transmission component. One end of at least one sludge conveyor belt is disposed at the center of the sedimentation tank, and the other end of at least one sludge conveyor belt is disposed on the peripheral wall of the sedimentation tank. At least one sludge conveyor belt is disposed around the sludge outlet at the center of the sedimentation tank. The sludge conveyor belt is sleeved on the corresponding transmission component, and the transmission component drives the sludge conveyor belt to move from the center of the sedimentation tank towards the peripheral wall.

[0063] The aforementioned sludge cleaning machine uses a suspension bracket to hang the sedimentation tank, with the transmission assembly mounted on the suspension bracket. The sludge conveyor belt is fitted onto the corresponding transmission assembly, ensuring the suspension bracket suspends the sludge conveyor belt above the bottom of the sedimentation tank. This arrangement allows the sludge conveyor belt to surround the sludge outlet at the center of the sedimentation tank, covering most of the tank bottom except for the sludge outlet at the center. This causes most of the sludge in the sedimentation tank to settle onto the sludge conveyor belt, which then acts as a sludge carrier. The transmission assembly then drives the sludge conveyor belt upwards from the center of the sedimentation tank towards the perimeter. The system operates by driving the sludge conveyor belt, which moves the sludge carried on the belt from the periphery of the sedimentation tank towards the sludge outlet at the center. Both compacted and loose sludge can be easily and simultaneously transported to the sludge outlet at the center of the sedimentation tank by the sludge conveyor belt. This single-pass transmission of the sludge conveyor belt by the drive component achieves the collection of sludge at the sludge outlet in the center of the sedimentation tank, avoiding the need for a high-powered rotating shaft to drive a scraper for sludge cleaning. This significantly reduces the cost of sludge cleaning in the sedimentation tank, effectively improves the cleaning efficiency, and ensures the cleaning effect.

[0064] It should be noted that the sedimentation tank is a conventional radial flow sedimentation tank. At least, an overflow outlet is provided on the periphery of the sedimentation tank, and an inlet trough and a sludge outlet are located at the center of the sedimentation tank. The inlet trough is supported by a truss at the center of the sedimentation tank. Further, at least, the sludge outlet at the center of the sedimentation tank is correspondingly located at different heights within the sedimentation tank, and at least further, the sludge outlet at the center of the sedimentation tank is located at the bottom of the sedimentation tank, while the inlet trough at the center of the sedimentation tank is located between the opening and the bottom of the sedimentation tank. This application does not elaborate on the specific structure of the sedimentation tank; rather, this application aims to protect the structure, location, and connection relationship of the sludge cleaning machine, as well as the location and connection relationship of the sludge cleaning machine within the sedimentation tank.

[0065] To better understand the sludge cleaning machine of this application, the following further explanation is provided:

[0066] Please see Figures 2 to 4 One embodiment of the sludge cleaning machine 10 includes a suspension bracket 100, at least one transmission assembly 200, and at least one sludge conveyor belt 300. The suspension bracket 100 is used to hang on a sedimentation tank. At least one transmission assembly 200 is disposed on the suspension bracket 100. At least one sludge conveyor belt 300 is correspondingly disposed to at least one transmission assembly 200. One end of at least one sludge conveyor belt 300 is disposed at the center of the sedimentation tank, and the other end of at least one sludge conveyor belt 300 is disposed on the peripheral wall of the sedimentation tank. At least one sludge conveyor belt 300 is disposed around the sludge outlet at the center of the sedimentation tank. The sludge conveyor belt 300 is sleeved on the corresponding transmission assembly 200, and the transmission assembly 200 drives the sludge conveyor belt 300 to move from the center of the sedimentation tank toward the peripheral wall.

[0067] The aforementioned sludge cleaning machine 10 allows the suspension bracket 100 to be mounted on the sedimentation tank, while the transmission component 200 is mounted on the suspension bracket 100. The sludge conveyor belt 300 is sleeved onto the corresponding transmission component 200, ensuring that the suspension bracket 100 suspends the sludge conveyor belt 300 at the bottom of the sedimentation tank. This arrangement allows the sludge conveyor belt 300 to surround the sludge outlet at the center of the sedimentation tank, covering most of the bottom area of ​​the sedimentation tank except for the sludge outlet at the center. Consequently, most of the sludge in the sedimentation tank settles onto the sludge conveyor belt 300, meaning the sludge conveyor belt 300 serves to carry the sludge. Furthermore, the transmission component 200 drives the sludge conveyor belt 300 through the sedimentation tank. The transmission moves from the center of the sedimentation tank towards the periphery, causing the transmission component 200 to drive the sludge conveyor belt 300, which in turn collects the sludge carried on the sludge conveyor belt 300 from the periphery of the sedimentation tank towards the sludge outlet at the center of the sedimentation tank. At this time, both compacted and loose sludge can be easily and once transported by the sludge conveyor belt 300 to the sludge outlet at the center of the sedimentation tank. The sludge can be collected at the sludge outlet at the center of the sedimentation tank simply by the transmission component 200 driving the sludge conveyor belt 300. This avoids the need to use a high-powered rotating shaft to drive the scraper to clean the sludge, thus reducing the cost of sludge cleaning in the sedimentation tank, effectively improving the sludge cleaning efficiency of the sedimentation tank, and ensuring the sludge cleaning effect of the sedimentation tank.

[0068] Please refer to the following: Figures 2 to 4 and Figure 7In one embodiment, the sludge conveyor belt 300 intersects the bottom surface of the sedimentation tank on a side facing away from the bottom, and the sludge conveyor belt 300 is inclined towards the sludge outlet of the sedimentation tank along the peripheral wall of the sedimentation tank. It can be understood that the sludge conveyor belt 300's inclination towards the sludge outlet of the sedimentation tank along the peripheral wall of the sedimentation tank forms a cone shape with its sharp corners truncated, thus creating a funnel-shaped ramp that facilitates the collection and discharge of sludge from the sludge conveyor belt 300 towards the sludge outlet.

[0069] Please refer to the following: Figures 4 to 9 In one embodiment, the suspension bracket 100 includes a main suspension rod 110, an inner mounting frame 120, an outer mounting frame 130, and at least one mounting support rod 140. The main suspension rod 110 is positioned at the center of the sedimentation tank. The inner mounting frame 120 and the outer mounting frame 130 are both arranged around the outer periphery of the main suspension rod 110. The inner mounting frame 120 and the outer mounting frame 130 are coaxially arranged. The inner mounting frame 120 is connected to the main suspension rod 110, and the outer mounting frame 130 is connected to the main suspension rod 110 via the mounting support rod 140. The sludge conveyor belt 300 is sleeved on the inner mounting frame 120 and the outer mounting frame 130. At least a portion of the transmission assembly 200 is mounted on the mounting support rod 140. The transmission assembly 200 drives the sludge conveyor belt 300 to move in the direction of the radius of the outer mounting frame 130 or the radius of the inner mounting frame 120. It is understandable that the inner mounting frame 120 and the outer mounting frame 130 cooperate to support and tighten the sludge conveyor belt 300, and to install and fix the transmission component 200 to drive the sludge conveyor belt 300 in the direction of the radius of the outer mounting frame 130 or the radius of the inner mounting frame 120, that is, to drive the sludge conveyor belt 300 in the direction of the line connecting the center and the peripheral wall of the sedimentation tank. This effectively achieves the radial transmission of sludge by the sludge conveyor belt 300 along the sedimentation tank to the sludge outlet, thus achieving effective cleaning of the sludge in the sedimentation tank.

[0070] In one embodiment, the suspension main rod is installed on the inlet trough at the center of the sedimentation tank, which better achieves the suspension stability of the suspension main rod, thereby better ensuring the installation stability of the sludge cleaning machine, and thus better ensuring the stability of the sludge cleaning effect of the sludge cleaning machine on the sedimentation tank.

[0071] In one embodiment, the inner mounting frame is used to surround the periphery of the sludge outlet of the sedimentation tank, thereby ensuring that the sludge in the sedimentation tank is effectively collected at the sludge outlet.

[0072] Please refer to the following: Figure 6 and Figure 9In one embodiment, the inner mounting frame 120 is connected to the main suspension rod 110 via at least one connecting rod 150, which better ensures the installation stability of the inner mounting frame 120 on the main suspension rod 110 and reduces the mechanical interference of the inner mounting frame 120 on the discharge of sludge from the sedimentation tank, thus ensuring the effective discharge of sludge from the sedimentation tank.

[0073] Please refer to the following: Figure 6 and Figure 9 In one embodiment, the inner mounting frame 120 is connected to both ends of the connecting rod 150, the connecting rod 150 passes through the suspension main rod 110, and the connecting rod 150 is embedded in the suspension main rod 110, further ensuring the installation stability of the inner mounting frame 120 on the suspension main rod 110. In another embodiment, the inner mounting frame 120 passes through at least one mounting support rod 140, and the inner mounting frame 120 is partially embedded in at least one mounting support rod 140, which better ensures the sliding engagement of the mounting support rod 140 with the sludge conveyor belt 300, and better ensures the installation stability of the mounting support rod 140 on the inner mounting frame 120.

[0074] Please refer to the following: Figure 5 and Figure 8 In one embodiment, the outer mounting frame 130 passes through at least one mounting support rod 140, and the outer mounting frame 130 is partially embedded in the at least one mounting support rod 140, which better ensures the sliding engagement of the mounting support rod 140 with the sludge conveyor belt 300, and better ensures the installation stability of the outer mounting frame 130 on the mounting support rod 140.

[0075] Please refer to the following: Figures 3 to 4 In one embodiment, the number of sludge conveyor belts 300 is the same as the number of mounting supports 140, which better realizes the sliding engagement of the two side walls of the mounting supports 140 with the peripheral walls of the adjacent sludge conveyor belts 300 in the width direction.

[0076] In one embodiment, there is one sludge conveyor belt, with its two outer side walls in the width direction engaged with the opposite side walls of the mounting bracket, and the two outer side walls in the width direction slidably connected to the mounting bracket. It is understandable that the sludge cleaning machine requires a main suspension rod and mounting supports to suspend the transmission components and sludge conveyor belt. However, the mounting supports create gaps between the sludge conveyor belt and the supports, making the sludge conveyor belt prone to twisting together in the width direction. This results in poor sludge conveying at the bottom of the sedimentation tank. To ensure effective sludge cleaning in the sedimentation tank, this application slidably connects the two outer walls of the sludge conveyor belt in the width direction to the mounting supports. This allows the mounting supports to not only install the transmission components but also expand the sludge conveyor belt in the width direction and reduce the gap between the sludge conveyor belt and the mounting supports. This effectively ensures the sludge conveyor belt can support a large portion of the sludge in the sedimentation tank, thus improving the sludge treatment effect.

[0077] In one embodiment, there are two sludge conveyor belts, and the two sludge conveyor belts and two mounting supports are staggered along the circumference of the inner mounting frame. The two outer side walls of each sludge conveyor belt in the width direction are engaged with the side walls of the two adjacent mounting supports, and the two outer side walls of each sludge conveyor belt in the width direction are slidably connected to the two adjacent mounting supports.

[0078] Please refer to the following: Figures 3 to 6 In one embodiment, there are multiple sludge conveyor belts 300, and multiple sludge conveyor belts 300 and multiple mounting supports 140 are staggered along the circumference of the inner mounting frame 120. The two outer side walls of each sludge conveyor belt 300 in the width direction are engaged with the side walls of two adjacent mounting supports 140, and the two outer side walls of each sludge conveyor belt 300 in the width direction are slidably connected to the two adjacent mounting supports 140.

[0079] Please refer to the following: Figures 3 to 6In one embodiment, the number of sludge conveyor belts 300 is six. The six sludge conveyor belts 300 and six mounting supports 140 are staggered along the circumference of the inner mounting frame 120. The two outer side walls of each sludge conveyor belt 300 in the width direction are engaged with the side walls of two adjacent mounting supports 140, and the two outer side walls of each sludge conveyor belt 300 in the width direction are slidably connected to the two adjacent mounting supports 140. It can be understood that when the number of sludge conveyor belts 300 is six, the transmission smoothness of the transmission assembly 200 driving the sludge conveyor belts 300 is high. Furthermore, while ensuring the smooth transmission of the sludge conveyor belts 300, the transmission power of the transmission assembly 200 is low. This better achieves reduced equipment maintenance while maintaining lower sludge treatment costs and better ensuring sludge treatment efficiency.

[0080] Please refer to the following: Figures 10 to 11 In one embodiment, sliding channels 101 are provided on the opposite side walls of the mounting support rod 140. The two outer side walls of each sludge conveyor belt 300 in the width direction are engaged with the sliding channels 101 of two adjacent mounting support rods 140. The two outer side walls of each sludge conveyor belt 300 in the width direction are slidably connected to the sliding channels 101 of two adjacent mounting support rods 140, which better ensures the engagement stability and sliding stability of the sludge conveyor belt 300 on the mounting support rod 140.

[0081] Please refer to the following: Figures 3 to 11 In one embodiment, the sludge conveyor belt 300 has support flexible rods (not shown) respectively clamped on its two outer side walls in the width direction. The sludge conveyor belt 300 is clamped onto the sliding channel 101 via the support flexible rods, and the sludge conveyor belt 300 is slidably connected to the sliding channel 101 via the support flexible rods. It can be understood that the support flexible rods clamped on the two outer side walls of the sludge conveyor belt 300 in the width direction mean that two support flexible rods are respectively clamped onto the two outer side walls of the sludge conveyor belt 300 in the width direction, which further ensures the clamping stability and sliding stability of the sludge conveyor belt 300 on the mounting support rod 140.

[0082] In one embodiment, the sidewall of the sludge conveyor belt is secured to the supporting flexible rod with adhesive. It should be noted that the adhesive is a liquid with adhesive properties; after being applied between the sludge conveyor belt and the supporting flexible rod, it solidifies to form a cured adhesive layer. Common adhesives include HY-T160 adhesive, white glue, and YH-8130 adhesive, which effectively ensures the stability of the sludge conveyor belt secured to the supporting flexible rod.

[0083] In one embodiment, the supporting flexible rod is a long strip structure formed of soft plastic that has a certain degree of flexibility and toughness. It should be noted that soft plastic generally refers to thermoplastic plastic or plastic that is relatively durable. The main soft plastics include polyethylene, polypropylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, nylon, polycarbonate, polyurethane, polytetrafluoroethylene and polyethylene terephthalate, etc.

[0084] Please refer to the following: Figures 3 to 4 In one embodiment, the number of transmission components 200 is the same as the number of sludge conveyor belts 300.

[0085] Please refer to the following: Figures 3 to 4 In one embodiment, the number of transmission components 200, the number of sludge conveyor belts 300, and the number of mounting supports 140 are the same.

[0086] Please refer to the following: Figures 3 to 6 In one embodiment, the transmission assembly 200 includes at least one transmission member 210. Each transmission member 210 includes a drive motor 211, an active roller 212, a passive roller 213, and a transmission belt 214. The drive motor 211 is mounted on the mounting support rod 140 or the outer mounting frame 130, and the drive motor 211 is located inside the sludge conveyor belt 300. The power output end of the drive motor 211 is connected to the active roller 212. The sludge conveyor belt 300 is respectively sleeved on the inner mounting frame 120, the transmission belt 214, and the outer mounting frame 130. The transmission belt 214 is sleeved on the active roller 212 and the passive roller 213. The passive roller 213 is connected to the mounting support rod 140, which better ensures the effective transmission of the sludge conveyor belt 300 in the direction of the line connecting the center and the peripheral wall of the sedimentation tank.

[0087] Please refer to the following: Figures 3 to 7 In one embodiment, the drive belt 214 is used for transmission along the line connecting the center and the peripheral wall of the sedimentation tank.

[0088] Please refer to the following: Figures 3 to 7 In one embodiment, the drive belt 214 and the sludge conveyor belt 300 have the same drive direction.

[0089] Please refer to the following: Figures 4 to 6 In one embodiment, the drive motor 211 is positioned close to the outward mounting frame 130, which reduces mechanical interference between the drive motor 211 and the sludge conveyor belt 300 and facilitates stable installation of the drive motor 211.

[0090] Please refer to the following: Figures 4 to 6In one embodiment, the drive motor 211 is connected to the outer mounting frame 130 via the base plate 215, which reduces the mechanical interference between the drive motor 211 and the sludge conveyor belt 300 and achieves stable installation of the drive motor 211.

[0091] Please refer to the following: Figure 4 and Figure 6 In one embodiment, the passive roller 213 is connected to the mounting rod 140 via a transmission bearing (not shown). The inner ring of the transmission bearing is connected to the mounting rod 140, and the outer ring of the transmission bearing is connected to the passive roller 213, which better ensures the following effect of the passive roller 213.

[0092] Please refer to the following: Figures 4 to 6 In one embodiment, the transmission assembly 200 includes two transmission members 210, with the transmission belts 214 of the two transmission members 210 respectively positioned adjacent to two mounting supports 140 adjacent to the corresponding sludge conveyor belt 300, thereby improving the smoothness of the transmission assembly 200 driving the sludge conveyor belt 300. In another embodiment, the transmission assembly 200 includes three transmission members 210, with the transmission belts 214 of two transmission members 210 respectively positioned adjacent to two mounting supports 140 adjacent to the corresponding sludge conveyor belt 300, and the transmission belt 214 of the remaining transmission member 210 positioned between the transmission belts 214 of the other two transmission members 210, and the drive motor 211 of the remaining transmission member 210 connected to the outer mounting frame 130, further improving the smoothness of the transmission assembly 200 driving the sludge conveyor belt 300.

[0093] Please refer to the following: Figures 7 to 9 In one embodiment, a silicone protrusion layer (not shown) is provided on the inner side of each sludge conveyor belt 300, and an auxiliary silicone protrusion layer (not shown) is provided on the side of the transmission belt 240 of each transmission member 210 of each transmission assembly 200 near the sludge conveyor belt 300. The silicone protrusion layer drives the sludge conveyor belt 300 through friction when the transmission belt 240 is in motion. It can be understood that there is significant friction between the silicone protrusion layer and the auxiliary silicone protrusion layer, ensuring smooth and stable conveying of the sludge conveyor belt 300 by the transmission belt 240, effectively ensuring the effective collection and discharge of sludge, and thus better ensuring the sludge cleaning effect.

[0094] In one embodiment, the silicone protrusion layer has multiple reinforcing grooves linearly arranged along the transmission direction of the sludge conveyor belt. Further, the auxiliary silicone protrusion layer has multiple reinforcing protrusions linearly arranged along the transmission direction of the sludge conveyor belt, and these reinforcing protrusions slide into each other during belt transmission. It is understood that because sludge may be heavy during intermittent transmission, slippage may occur between the belt and the conveyor belt. To better ensure the sludge transmission effect, in this application, the silicone protrusion layer and the auxiliary silicone protrusion layer respectively form mutually cooperating reinforcing grooves and reinforcing protrusions. This ensures that the silicone protrusion layer and the auxiliary silicone protrusion layer, while achieving belt transmission through friction, also form mechanical interference to further strengthen the force of the belt on the sludge conveyor belt. This better achieves smooth and stable transmission of the sludge conveyor belt, effectively ensuring the effective collection and discharge of sludge, and thus better ensuring the sludge cleaning effect.

[0095] In one embodiment, the reinforcing protrusion is a metal protrusion, which is at most partially embedded in the auxiliary silicone protrusion layer.

[0096] Please refer to the following: Figures 4 to 6 In one embodiment, the drive roller 212 is linearly arrayed with a plurality of first protrusions 216 along the transmission direction of the sludge conveyor belt 300, and the extension direction of each first protrusion 216 is the same as the width direction of the sludge conveyor belt 300. Further, the inner side of the transmission belt 214 is linearly arrayed with a plurality of second protrusions 217 along the transmission direction of the sludge conveyor belt 300, and the extension direction of each second protrusion 217 is the same as the width direction of the sludge conveyor belt 300. This effectively enhances the frictional strength between the drive roller 212 and the transmission belt 214, thereby ensuring the smoothness and stability of the transmission of the transmission belt 214, and thus better ensuring the sludge cleaning effect.

[0097] Please refer to the following: Figures 4 to 6 In one embodiment, the passive roller 213 is linearly arrayed with multiple third protrusions 218 along the transmission direction of the sludge conveyor belt 300. The extension direction of the third protrusions 218 is the same as the width direction of the sludge conveyor belt, which effectively enhances the friction strength between the passive roller 213 and the transmission belt 214, thereby ensuring the smoothness and stability of the transmission of the transmission belt 214, and thus better ensuring the sludge cleaning effect.

[0098] Please refer to the following: Figures 4 to 6 In one embodiment, the power output end of the drive motor 211 is engaged with the drive roller 212.

[0099] Compared with the prior art, the present invention has at least the following advantages:

[0100] The wastewater sedimentation treatment process of this invention involves suspending a sludge conveyor belt at the bottom of a sedimentation tank. This conveyor belt is positioned around the sludge outlet at the center of the sedimentation tank, covering most of the tank bottom except for the sludge outlet at the center. Wastewater sedimentation is then performed in the sedimentation tank, where flocculation and sedimentation separate the sludge from the water. The settled sludge deposits on the sludge conveyor belt, which then acts as a sludge carrier. The sludge conveyor belt is then intermittently driven, meaning it is driven intermittently... Sludge is conveyed towards the sludge outlet at the center of the sedimentation tank. Both compacted and loose sludge can be easily and simultaneously transported to the sludge outlet at the center of the sedimentation tank by the sludge conveyor belt. The sludge is collected at the sludge outlet at the center of the sedimentation tank solely through the drive of the sludge conveyor belt, avoiding the need for a powerful rotating shaft to drive scrapers for sludge cleaning. This significantly reduces the cost of sludge cleaning in the sedimentation tank. Combined with the sludge discharge from the sludge outlet, this effectively improves the sludge cleaning efficiency of the sedimentation tank and ensures the cleaning effect.

[0101] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A wastewater sedimentation treatment process, characterized in that, Includes the following steps: A conveying and laying operation is performed on the sedimentation tank so that at least one sludge conveyor belt is suspended at the bottom of the sedimentation tank, one end of the at least one sludge conveyor belt is located at the center of the sedimentation tank, the other end of the at least one sludge conveyor belt is located at the periphery of the sedimentation tank, and at least one sludge conveyor belt is arranged around the sludge outlet at the center of the sedimentation tank. Wastewater is treated by sedimentation in the sedimentation tank so that the sludge in the sedimentation tank is deposited onto the sludge conveyor belt. The sludge conveyor belt is subjected to intermittent transmission operation to drive the two ends of the sludge conveyor belt to be intermittently transmitted to the sludge outlet. The sludge at the sludge outlet is subjected to intermittent discharge treatment so that the sludge is intermittently discharged from the sedimentation tank; The sludge at the sludge outlet is subjected to intermittent discharge treatment, specifically: the sludge at the sludge outlet is subjected to intermittent spiral extrusion discharge, so that a spiral rod is set at the sludge outlet to discharge the sludge, and the sludge at the sludge outlet is adapted to the drive of the sludge conveyor belt, so that the discharge is intermittent. The number of sludge conveyor belts is two or more, and at least a portion of each sludge conveyor belt is wrinkled in the width direction so that the sludge conveyor belt is in a double arc fan shape. The width of the sludge conveyor belt located at the center of the sedimentation tank is the same as the width of the sludge conveyor belt located on the periphery of the sedimentation tank, and at least a portion of the sludge conveyor belt is wrinkled in the width direction.

2. The wastewater sedimentation treatment process according to claim 1, characterized in that, The intermittent transmission operation of the sludge conveyor belt specifically includes the following steps: An active roller is used to intermittently rotate one end of the sludge conveyor belt located on the periphery of the sedimentation tank, so that the active roller is located at one end of the sludge conveyor belt and the sludge conveyor belt is located on the outer periphery of the active roller. The active roller meshes with the sludge conveyor belt and drives the sludge conveyor belt to rotate intermittently. A driven roller is used to intermittently drive one end of the sludge conveyor belt located at the center of the sedimentation tank, so that the driven roller is located at one end of the sludge conveyor belt and the sludge conveyor belt is located on the outer periphery of the driven roller. The driven roller meshes with the sludge conveyor belt, and the sludge conveyor belt drives the driven roller to rotate intermittently.

3. The wastewater sedimentation treatment process according to claim 1, characterized in that, After the step of conveying and laying the sedimentation tank, and before the step of treating the wastewater in the sedimentation tank, the wastewater sedimentation treatment process further includes the following steps: Wastewater is treated to flow into the sedimentation tank from the inlet at the center of the sedimentation tank.

4. The wastewater sedimentation treatment process according to claim 3, characterized in that, After the step of treating the wastewater inflow into the sedimentation tank, at least one step of the wastewater sedimentation treatment process is accompanied by a filtration and discharge treatment of the wastewater, so that the wastewater is filtered and overflows from the overflow port on the periphery of the sedimentation tank.

5. A sludge cleaning machine, characterized in that, The sludge is cleaned using the wastewater sedimentation treatment process described in any one of claims 1 to 4, wherein the sludge cleaning machine comprises: A suspension bracket, which is used to hang the sedimentation tank; At least one transmission component, wherein at least one of the transmission components is disposed on the suspension bracket; At least one sludge conveyor belt is provided, and at least one of the sludge conveyor belts is correspondingly arranged with at least one of the transmission components. One end of the at least one sludge conveyor belt is used to be located at the center of the sedimentation tank, and the other end of the at least one sludge conveyor belt is used to be located at the peripheral wall of the sedimentation tank. The at least one sludge conveyor belt is used to surround the sludge outlet at the center of the sedimentation tank. The sludge conveyor belt is sleeved on the corresponding transmission component, and the transmission component drives the sludge conveyor belt to move from the center of the sedimentation tank toward the peripheral wall.

6. The sludge cleaning machine according to claim 5, characterized in that, The sludge conveyor belt intersects the bottom surface of the sedimentation tank on one side away from the bottom of the sedimentation tank, and the sludge conveyor belt is inclined toward the sludge outlet of the sedimentation tank in the direction of the center of the peripheral wall of the sedimentation tank.

7. The sludge cleaning machine according to claim 5, characterized in that, The suspension bracket includes a main suspension rod, an inner mounting frame, an outer mounting frame, and at least one mounting support rod. The main suspension rod is positioned at the center of the sedimentation tank. The inner and outer mounting frames are both arranged around the outer periphery of the main suspension rod and are coaxially arranged. The inner mounting frame is connected to the main suspension rod, and the outer mounting frame is connected to the main suspension rod via the mounting support rod. The sludge conveyor belt is sleeved on the inner and outer mounting frames. At least a portion of the transmission assembly is mounted on the mounting support rod, and the transmission assembly drives the sludge conveyor belt to move in the direction of the radius of the outer mounting frame or the radius of the inner mounting frame.

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