Sludge dewatering device for sewage treatment

Abstract

The utility model discloses a sludge dewatering device of sewage treatment relates to sludge dewatering field, including base, mounting bracket, control box and centrifugal dewatering spare, the water suction pump of base is through pipeline and sends sewage to centrifugal dewatering spare, and the sewage produced after centrifugal dewatering spare dewatering is guided into the drainage hopper of base through the drainage structure, and the damping assembly of mounting bracket assists centrifugal dewatering spare stable operation, and the common constitution transports - dewatering - collection integrated sewage treatment sludge dewatering system. The utility model discloses through multiple component cooperation design, has made complete integrated dewatering system, has realized the whole process coherent operation of sewage from introduction to dewatering product separation, sets up the power transmission channel that is composed of water suction pump, connecting pipe, communicating pipe in the sewage transmission link, and water suction pump can actively extract sewage from external sewage source, and the centrifugal cylinder in centrifugal dewatering spare is accurately conveyed to through hard pipeline, does not need manual auxiliary feeding, and effectively avoids the feeding blockage problem.

Description

Technical Field

[0001] This utility model belongs to the field of sludge dewatering technology, specifically, it relates to a sludge dewatering device for sewage treatment. Background Technology

[0002] Both domestic and industrial wastewater treatment generate large amounts of sludge. Existing practical sludge treatment methods mainly include incineration, composting, and solidification backfilling. However, all of these methods require deep dewatering of the sludge.

[0003] Utility model patent CN221235489U discloses a sludge dewatering machine, including a hollow box with a cylindrical metal mesh inside. A ring-shaped filter cloth is wrapped around the outer circumference of the metal mesh. A drive roller rotates through the top of the box, and the filter cloth passes over the drive roller. A drive motor is coaxially connected to one end of the rotating roller outside the box. An air-blowing assembly for backflushing the backwater surface of the filter cloth is also located on the top of the box. The air-blowing assembly includes an air-blowing chamber located on the top of the box, which is hollow inside and has an air outlet facing the backwater surface of the filter cloth. An air pump is located outside the box, and the air outlet of the air pump is connected to the air-blowing chamber. However, while existing devices address the problem of decreased filtration performance of the filter cloth through the air-blowing assembly, their overall structure does not form a complete "transportation-dewatering-collection" continuous process, with significant disconnects between the various stages. In the wastewater transport stage, existing patents lack a dedicated power transport component, relying solely on the sludge's own gravity or external manual assistance to guide it into the metal mesh within the tank. If the sludge has low moisture content and poor flowability, feed blockage is likely, requiring frequent manual intervention and significantly impacting processing efficiency. In the post-dewatering product processing stage, the wastewater is simply collected naturally at the bottom of the tank without a directional wastewater collection and discharge structure. Wastewater easily accumulates within the tank, potentially causing backflow into the sludge and reducing dewatering efficiency. Regular shutdowns are also necessary to clean the accumulated wastewater, interrupting dewatering operations. Furthermore, the dewatered sludge is discharged via a helical blade on the drive shaft, but the fixed clearance between the helical blade and the metal mesh / filter cloth means that if the sludge clumps after dewatering, it can become stuck in these gaps, causing transport disruptions and further exacerbating process interruptions. Overall, the existing patent's process design is fragmented, lacking coordination between stages and failing to achieve continuous dewatering operations. In scenarios with large processing volumes, frequent manual intervention and shutdowns for cleaning significantly reduce the equipment's actual operating efficiency. In view of this, this utility model is proposed. Utility Model Content

[0004] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: Sludge dewatering equipment for wastewater treatment includes: The base provides overall support for the device, enabling the initial transport of wastewater and the collection of wastewater after dehydration. Mounting bracket, which is fixed to the mounting platform of the base, is used to protect the centrifugal dehydration components and provide a sewage conveying channel and shock-absorbing support; A control box, which is fixedly connected to the base or mounting bracket, is used to control the operation of various components of the device; A centrifugal dewatering component is installed on the mounting platform of the base and located inside the outer shell of the mounting frame, and is used to separate sewage and sludge by centrifugal force. The base's suction pump transports sewage to the centrifugal dewatering unit through a pipeline. The sewage produced after dewatering by the centrifugal dewatering unit is guided into the base's drainage hopper through a drainage structure. The shock-absorbing components of the mounting frame assist the centrifugal dewatering unit in stable operation, together forming an integrated sewage treatment sludge dewatering system that combines conveying, dewatering, and collection.

[0005] Preferably, the base includes a mounting frame, a water pump, a connecting pipe, a drain hopper, and a mounting platform; The mounting frame is a rectangular groove with an opening at the top, fixed to the middle of the base, used to accommodate and fix the water pump and the drain hopper; The water pump is fixed to the bottom inner side of the mounting frame. The inlet end is connected to an external sewage source, and the outlet end is fixedly connected to one end of the connecting pipe. It is used to provide power for sewage transportation and pump external sewage to the centrifugal dewatering unit. The connecting pipe is a rigid pipe, one end of which is connected to the water outlet of the water pump, and the other end is fixedly connected to the lower end of the connecting pipe of the mounting frame, forming the first channel for sewage transportation. The drainage hopper is a funnel-shaped structure with an open top, fixed inside the mounting frame and located next to the water pump. The upper end of the drainage hopper is connected to the drain outlet of the centrifugal dewatering component fixing cylinder, and is used to collect the dewatered wastewater discharged from the drain outlet. The mounting platform is a raised rectangular platform, fixed to the top side of the base and located next to the mounting frame. It is used to support the fixing cylinder for mounting the centrifugal dewatering component and to ensure the stability of the centrifugal dewatering component during operation.

[0006] Preferably, the mounting bracket includes a housing, a door, a connecting pipe, and a tension spring; The outer shell is a rectangular frame structure with an open bottom, which is fixedly installed on the outside of the mounting platform of the base to protect the internal centrifugal dehydration components and prevent sewage from splashing during the dehydration process. The cabinet door is rotatably connected to the side of the outer shell via a hinge. The cabinet door can be opened and closed, facilitating the maintenance or repair of the internal centrifugal dehydration components. The connecting pipe is a rigid pipe. Its lower end is fixedly connected to the connecting pipe of the base, and its upper end passes through the preset hole of the box door and is inserted into the fixed cylinder of the centrifugal dehydration component. It is also connected to the front of the centrifugal cylinder inside the fixed cylinder through a sealed bearing, forming the second channel for sewage transportation, ensuring that sewage flows steadily into the centrifugal cylinder without leakage. The tension spring is provided in two sets, which are respectively fixed on both sides of the inner wall of the outer shell. One end of each tension spring is fixed to the inner wall of the outer shell, and the other end is detachably connected to the connecting spring hook of the centrifugal dehydration component fixing cylinder through a hook. It is used to cooperate with the connecting spring to provide shock absorption and buffer for the centrifugal dehydration component and reduce vibration during centrifugal operation.

[0007] Preferably, the centrifugal dehydration component includes a fixed cylinder, a connecting spring, a drain outlet, a fixed frame, a rotating wheel, a motor, and a centrifugal cylinder; The fixed cylinder is a cylindrical frame with openings at both ends, which is fixedly installed on the mounting platform of the base and is used to accommodate centrifuge cylinders. The connecting spring is provided in two sets, which are respectively fixed to the outer walls of the two sides of the fixed cylinder. One end of each set of connecting springs is fixed to the outer wall of the fixed cylinder, and the other end is provided with a hook. The hook is connected to the tension spring hook of the mounting bracket to achieve shock absorption. The drain outlet is located on the lower side wall of the fixed cylinder and is connected to the upper end of the drain hopper of the base. It is used to discharge the wastewater thrown out by the centrifuge cylinder after dehydration to the drain hopper. The fixing frame is a U-shaped bracket, fixed to the outer wall of the back of the fixing cylinder, and used for movably installing the rotating wheel; The rotating wheel is movably mounted on the fixed frame via a rotating shaft. One side of the rotating wheel is connected to the pulley on the motor output shaft via a belt, and the other side is fixedly connected to the back of the centrifuge tube inside the fixed cylinder via a connecting shaft, which is used to transmit the power of the motor to the centrifuge tube and drive the centrifuge tube to rotate. The motor is fixed to the top outer wall of the fixed cylinder, with its output shaft facing the direction of the rotating wheel. It is used to provide power for the rotation of the centrifuge cylinder, and the start and stop of the motor are controlled by the control box. The centrifuge tube is a cylindrical mesh structure located inside a fixed tube. Its front side is rotatably and sealed to the upper end of the connecting pipe through a sealed bearing, and its back side is fixedly connected to the connecting shaft of the rotating wheel. It can rotate at high speed under the drive of a motor, and the internal sewage is thrown out to the inner wall of the fixed tube by centrifugal force, and then flows into the drainage hopper through the drain outlet, thus realizing the separation of sludge and sewage.

[0008] Preferably, the water pump is made of corrosion-resistant material, which can withstand corrosive substances in sewage and extend its service life; The inner wall of the drainage hopper is provided with a smooth coating to reduce the residue of sewage in the drainage hopper and prevent sludge accumulation. The top of the mounting platform is equipped with an anti-slip pad to increase the friction with the bottom of the fixed cylinder and further improve the stability of the centrifugal dehydration unit during operation.

[0009] Preferably, the sealing bearing between the connecting pipe and the centrifuge cylinder adopts a waterproof sealing structure to prevent sewage from leaking from the gap between the two. The belt between the motor and the pulley is a non-slip and wear-resistant belt to ensure stable power transmission and prevent slippage; Both the connecting spring and the tension spring are made of stainless steel, which has good elasticity and corrosion resistance, and is suitable for the humid environment of sewage dewatering.

[0010] Compared with the prior art, the present invention has the following advantages: This invention utilizes a multi-component collaborative design to create a complete integrated dewatering system, achieving a seamless process from wastewater introduction to product separation after dewatering. In the wastewater transport stage, a power transport channel consisting of a suction pump, connecting pipes, and connecting pipes is installed. The suction pump actively draws wastewater from an external source and precisely transports it through rigid pipes to the centrifuge drum of the centrifugal dewatering unit, eliminating the need for manual feeding and effectively preventing feed blockage. Furthermore, the transport speed can be adjusted via a control box to adapt to wastewater with different moisture contents. In the dewatering stage, the centrifuge drum adopts a cylindrical mesh structure and rotates at high speed driven by a motor, efficiently separating wastewater through centrifugal force. This method is superior to existing devices that rely on filter cloth permeation for dewatering. This centrifugal dewatering method offers higher efficiency, and the mesh structure of the centrifuge drum is adapted to the size of sludge particles, ensuring smooth wastewater discharge while effectively retaining sludge. In the post-dewatering product collection stage, a funnel-shaped drainage hopper is specifically designed to precisely connect with the drain outlet of the centrifuge dewatering unit. Dewatered wastewater can flow directionally into the drainage hopper through the drain outlet, preventing sludge accumulation. Simultaneously, the dewatered sludge inside the centrifuge drum can be directly removed from the drum opening or exported through subsequent auxiliary structures, eliminating the need to stop the machine for cleaning. The entire system, from wastewater intake to dewatering and wastewater collection, requires no manual intervention, achieving continuous and automated dewatering operations. This significantly improves the equipment's operating efficiency in high-volume processing scenarios and reduces labor costs.

[0011] This invention improves the operational stability of the equipment from multiple dimensions, including vibration reduction, sealing, and anti-slip, while reducing component wear and maintenance costs. Regarding vibration reduction, the mounting frame is equipped with two sets of tension springs, and two sets of connecting springs are installed on both sides of the fixed cylinder of the centrifugal dehydration component. The tension springs and connecting springs are detachably connected via hooks, forming a synergistic vibration reduction system. When the centrifugal cylinder vibrates at high speed, the connecting springs directly buffer the vibration of the fixed cylinder, while the tension springs further transmit the vibration to the mounting frame housing. This double buffering effectively offsets most of the vibration energy, preventing vibration from being transmitted to the base and other critical components, thus significantly reducing vibration wear on components such as the motor and bearings. Regarding sealing, a waterproof sealed bearing connection is used between the connecting pipe and the centrifugal cylinder, completely blocking... The design eliminates the path for sewage leakage through the gap between the two components, preventing sewage from seeping into the motor, impeller, and other parts, thus avoiding corrosion or short circuits. Simultaneously, the outer casing covers the centrifugal dewatering components, preventing sewage splashing during dewatering and contaminating the external environment. For fixation and anti-slip, the top of the mounting platform of the base is equipped with an anti-slip pad, increasing the friction between the fixed cylinder and the mounting platform and preventing displacement of the centrifugal dewatering components during operation. Furthermore, the fixed cylinder adopts a cylindrical frame structure, which has a stronger load-bearing capacity and adapts better to the mounting platform, further improving overall stability. These designs not only ensure the long-term stability of the equipment but also significantly reduce the wear rate of vulnerable components such as the filter cloth, motor, and bearings, reducing maintenance frequency and costs, and extending the overall service life of the equipment.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the base structure of this utility model; Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the centrifugal dehydration component of this utility model.

[0015] In the diagram: base 1, mounting frame 11, water pump 12, connecting pipe 13, drain hopper 14, mounting platform 15, mounting bracket 2, outer shell 21, box door 22, connecting pipe 23, tension spring 24, control box 3, centrifugal dehydration component 4, fixing cylinder 41, connecting spring 42, drain outlet 43, fixing bracket 44, rotating wheel 45, motor 46. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0017] like Figures 1 to 4 As shown, the sludge dewatering device for sewage treatment includes a base 1, a mounting frame 2, a control box 3, and a centrifugal dewatering component 4. The suction pump 12 of the base 1 transports sewage to the centrifugal dewatering component 4 through a pipeline. The sewage generated after dewatering by the centrifugal dewatering component 4 is introduced into the drainage hopper 14 of the base 1 through a drainage structure. The shock absorption components of the mounting frame 2 assist the centrifugal dewatering component 4 to operate stably, together forming an integrated sewage treatment sludge dewatering system of "transportation-dewatering-collection".

[0018] Specifically, the base 1 provides overall support for the device, enabling initial wastewater transport and collection of dewatered wastewater. The base 1 includes a mounting frame 11, a suction pump 12, a connecting pipe 13, a drainage hopper 14, and a mounting platform 15. The mounting frame 11 is a rectangular groove with an open top, fixed to the center of the base 1, used to accommodate and fix the suction pump 12 and the drainage hopper 14. The suction pump 12 is fixed to the inner bottom of the mounting frame 11, with its inlet end connected to an external wastewater source and its outlet end fixedly connected to one end of the connecting pipe 13, providing power for wastewater transport and pumping external wastewater to the centrifugal dewatering unit 4. The connecting pipe 13 is a rigid pipe, with one end connected to... The water pump 12 is connected at its outlet end and fixedly connected at its other end to the lower end of the connecting pipe 23 of the mounting frame 2, forming the first channel for sewage transportation; the drain hopper 14 is a funnel-shaped structure with an open top, fixed inside the mounting frame 11 and located next to the water pump 12, with the upper end of the drain hopper 14 connected to the drain outlet 43 of the fixed cylinder 41 of the centrifugal dewatering component 4, for collecting the dewatered sewage discharged from the drain outlet 43; the mounting platform 15 is a raised rectangular platform, fixed to the top side of the base 1 and located next to the mounting frame 11, for supporting the fixed cylinder 41 of the centrifugal dewatering component 4, ensuring the stability of the centrifugal dewatering component 4 during operation.

[0019] More specifically, the suction pump 12 is made of corrosion-resistant material, which can withstand corrosive substances in sewage and extend its service life; the inner wall of the drain hopper 14 is provided with a smooth coating (such as polytetrafluoroethylene coating) to reduce sewage residue in the drain hopper 14 and avoid sludge accumulation; the top of the mounting platform 15 is provided with an anti-slip pad to increase the friction with the bottom of the fixed cylinder 41 and further improve the stability of the centrifugal dewatering component 4 during operation.

[0020] Specifically, the mounting frame 2 is fixed on the mounting platform 15 of the base 1 to protect the centrifugal dewatering component 4 and provide a wastewater conveying channel and shock-absorbing support. The mounting frame 2 includes an outer shell 21, a door 22, a connecting pipe 23, and a tension spring 24. The outer shell 21 is a rectangular frame structure with an open bottom, fixedly covering the outside of the mounting platform 15 of the base 1 to protect the internal centrifugal dewatering component 4 and prevent wastewater from splashing during the dewatering process. The door 22 is rotatably connected to the side of the outer shell 21 by a hinge, and the door 22 can be opened and closed to facilitate maintenance or repair of the internal centrifugal dewatering component 4. The connecting pipe 23 is a rigid pipe, and its lower end is connected to the connecting pipe 1 of the base 1. 3. Fixed connection: The upper end passes through the preset hole of the box door 22 and is inserted into the fixed cylinder 41 of the centrifugal dewatering component 4. It is also connected to the front of the centrifugal cylinder inside the fixed cylinder 41 through a sealed bearing, forming the second channel for sewage transportation, ensuring that sewage flows into the centrifugal cylinder stably and without leakage. There are two sets of tension springs 24, which are fixed on both sides of the inner wall of the outer shell 21. One end of each tension spring 24 is fixed to the inner wall of the outer shell 21, and the other end is detachably connected to the connecting spring 42 of the fixed cylinder 41 of the centrifugal dewatering component 4 through a hook. It is used to cooperate with the connecting spring 42 to provide shock absorption and buffer for the centrifugal dewatering component 4 and reduce the vibration during centrifugal operation.

[0021] More specifically, the control box 3 is fixedly connected to the base 1 or the mounting bracket 2 and is used to control the operation of various components of the device (such as the start and stop of the water pump 12 and the motor 46). Specifically, the centrifugal dewatering component 4 is installed on the mounting platform 15 of the base 1 and located inside the outer shell 21 of the mounting frame 2. It is used to separate sewage and sludge through centrifugal force. The centrifugal dewatering component 4 includes a fixed cylinder 41, connecting springs 42, a drain outlet 43, a fixing frame 44, a rotating wheel 45, a motor 46, and a centrifugal cylinder (not shown in the figure, hidden inside the fixed cylinder 41). The fixed cylinder 41 is a cylindrical frame with open ends, fixedly installed on the mounting platform 15 of the base 1, and is used to accommodate the centrifugal cylinder. There are two sets of connecting springs 42, which are fixed to the outer walls of the two sides of the fixed cylinder 41 respectively. One end of each set of connecting springs 42 is fixed to the outer wall of the fixed cylinder 41, and the other end is provided with a hook. The hook is connected to the tension spring 24 of the mounting frame 2 to achieve shock absorption. The drain outlet 43 is opened at the lower part of the side wall of the fixed cylinder 41 and is connected to the upper end of the drain hopper 14 of the base 1. It is used to discharge the sewage thrown out by the centrifugal cylinder after dewatering to the drain hopper 14. The fixing frame 44 A U-shaped bracket is fixed to the outer back wall of the fixed cylinder 41 for movably mounting the rotating wheel 45. The rotating wheel 45 is movably mounted on the fixed frame 44 via a rotating shaft. One side of the rotating wheel 45 is connected to the pulley on the output shaft of the motor 46 via a belt, and the other side is fixedly connected to the back of the centrifuge cylinder inside the fixed cylinder 41 via a connecting shaft. This is used to transmit the power of the motor 46 to the centrifuge cylinder and drive it to rotate. The motor 46 is fixed to the top outer wall of the fixed cylinder 41, with its output shaft facing the rotating wheel 45. This provides the power for the centrifuge cylinder to rotate. The start and stop of the motor 46 are controlled by the control box 3. The centrifuge cylinder is a cylindrical mesh structure located inside the fixed cylinder 41. Its front side is rotatably sealed to the upper end of the connecting pipe 23 via a sealed bearing, and its back side is fixedly connected to the connecting shaft of the rotating wheel 45. It can rotate at high speed under the drive of the motor 46, and the internal sewage is thrown out to the inner wall of the fixed cylinder 41 by centrifugal force, and then flows into the drainage hopper 14 through the drain outlet 43, thus achieving the separation of sludge and sewage.

[0022] More specifically, the sealing bearing between the connecting pipe 23 and the centrifuge cylinder adopts a waterproof sealing structure to prevent sewage from leaking from the gap between the two; the belt between the motor 46 and the wheel 45 is an anti-slip and wear-resistant belt (such as a polyurethane synchronous belt) to ensure stable power transmission and avoid slippage; the mesh structure of the centrifuge cylinder has a pore size of 0.5-2mm, which can effectively intercept sludge particles while allowing sewage to be thrown out smoothly, balancing dewatering efficiency and sludge retention effect; the connecting spring 42 and the tension spring 24 are both made of stainless steel, which has good elasticity and corrosion resistance and is suitable for the humid environment of sewage dewatering.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sludge dewatering device for wastewater treatment, characterized in that, include: The base provides overall support for the device, enabling the initial transport of wastewater and the collection of wastewater after dehydration. Mounting bracket, which is fixed to the mounting platform of the base, is used to protect the centrifugal dehydration components and provide a sewage conveying channel and shock-absorbing support; A control box, which is fixedly connected to the base or mounting bracket, is used to control the operation of various components of the device; A centrifugal dewatering component is installed on the mounting platform of the base and located inside the outer shell of the mounting frame, and is used to separate sewage and sludge by centrifugal force. The base's suction pump transports wastewater to the centrifugal dewatering unit through a pipe. The wastewater generated after dewatering by the centrifugal dewatering unit is then guided into the base's drainage hopper through a drainage structure.

2. The sludge dewatering device for wastewater treatment according to claim 1, characterized in that, The base includes a mounting frame, a water pump, a connecting pipe, a drainage hopper, and a mounting platform; The mounting frame is a rectangular groove with an opening at the top, fixed to the middle of the base, used to accommodate and fix the water pump and the drain hopper; The water pump is fixed to the bottom inner side of the mounting frame, with the inlet end connected to an external sewage source and the outlet end fixedly connected to one end of the connecting pipe. The connecting pipe is a rigid pipe, one end of which is connected to the water outlet of the water pump, and the other end is fixedly connected to the lower end of the connecting pipe of the mounting frame, forming the first channel for sewage transportation. The drainage hopper is a funnel-shaped structure with an open top, fixed to the inside of the mounting frame and located next to the water pump. The upper end of the drainage hopper is connected to the centrifugal dewatering component to collect the dewatered wastewater discharged from the centrifugal dewatering component. The mounting platform is a raised rectangular platform, fixed to the top side of the base, located next to the mounting frame, and used to support the fixed cylinder for mounting the centrifugal dehydration components.

3. The sludge dewatering device for wastewater treatment according to claim 1, characterized in that, The mounting bracket includes a housing, a door, a connecting tube, and a tension spring; The outer shell is a rectangular frame structure with an open bottom, which is fixedly installed on the outside of the mounting platform of the base to protect the internal centrifugal dehydration components. The box door is rotatably connected to the side of the outer shell by a hinge. The connecting pipe is a rigid pipe, with its lower end fixedly connected to the connecting pipe of the base, and its upper end inserted through the preset hole of the box door and into the fixed cylinder of the centrifugal dewatering component. It is also connected to the front of the centrifugal cylinder inside the fixed cylinder through a sealed bearing, forming the second channel for sewage transportation. The tension spring is provided in two sets, which are respectively fixed on both sides of the inner wall of the outer shell. One end of each tension spring is fixed to the inner wall of the outer shell, and the other end is detachably connected to the connecting spring hook of the centrifugal dehydration component fixing cylinder through a hook.

4. The sludge dewatering device for wastewater treatment according to claim 1, characterized in that, The centrifugal dehydration component includes a fixed cylinder, a connecting spring, a drain outlet, a fixed frame, a rotating wheel, a motor, and a centrifugal cylinder; The fixed cylinder is a cylindrical frame with openings at both ends, which is fixedly installed on the mounting platform of the base and is used to accommodate centrifuge cylinders. The connecting spring is provided in two sets, which are respectively fixed to the outer walls of the two sides of the fixed cylinder. One end of each set of connecting springs is fixed to the outer wall of the fixed cylinder, and the other end is provided with a hook, which is connected to the tension spring hook of the mounting bracket through the hook. The drain outlet is located on the lower part of the side wall of the fixed cylinder and is connected to the upper end of the drain hopper of the base. The fixing frame is a U-shaped bracket, fixed to the outer wall of the back of the fixing cylinder, and used for movably installing the rotating wheel; The rotating wheel is movably mounted on the fixed frame via a rotating shaft. One side of the rotating wheel is connected to the pulley on the motor output shaft via a belt, and the other side is fixedly connected to the back of the centrifuge tube inside the fixed cylinder via a connecting shaft, which is used to transmit the power of the motor to the centrifuge tube. The motor is fixed to the top outer wall of the fixed cylinder, with its output shaft facing the direction of the rotating wheel, and is used to provide power for the rotation of the centrifuge cylinder; The centrifuge tube is a cylindrical mesh structure located inside the fixed tube. Its front side is rotatably and sealed to the upper end of the connecting pipe through a sealed bearing, and its back side is fixedly connected to the connecting shaft of the rotor.

5. The sludge dewatering device for wastewater treatment according to claim 2, characterized in that, The water pump is made of corrosion-resistant material, the inner wall of the drainage hopper is coated with a smooth coating, and the top of the mounting platform is equipped with an anti-slip pad.

6. The sludge dewatering device for wastewater treatment according to claim 4, characterized in that, The sealing bearing between the connecting pipe and the centrifuge cylinder adopts a waterproof sealing structure, the belt between the motor and the rotor is a non-slip and wear-resistant belt, and the connecting spring and tension spring are both made of stainless steel.

Images