Sludge dewatering device

Abstract

The utility model belongs to sludge dewatering technical field especially relates to a sludge dewatering device, including sludge pool, dewatering cylinder, adjusting structure, flushing structure, water collecting structure and conveying structure, dewatering cylinder is fixed on the ground through support frame, the higher side of dewatering cylinder is fixedly connected with the top plate through support, conveying structure is located in the inside of dewatering cylinder, the top of dewatering cylinder is provided with cleaning structure, conveying structure includes suction pump, transport pipe, motor one and spiral conveying shaft. This sludge dewatering device, drive structure adopts motor two cooperation pinion, gear transmission, not only guarantees filter water cylinder rotation stability, still can adjust filter water cylinder operating condition through the regulation and control motor speed, adapts to the sludge treatment demand of different concentration, nature, the adjusting structure can change sludge discharge resistance and residence time flexibly through electric push rod control adjusting plate position, accurately adapts different dewatering degree requirement, improves the versatility of device.

Description

Technical Field

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

[0002] Large quantities of sludge with high moisture content are generated in fields such as wastewater treatment, municipal engineering, and industrial production. If this sludge is not effectively dewatered, not only are transportation and disposal costs extremely high, but the excessive moisture content can also cause secondary pollution. Therefore, sludge dewatering equipment is a key component for achieving sludge reduction and harmless treatment, and its performance directly affects the efficiency and economy of the entire sludge treatment process.

[0003] Existing sludge dewatering devices generally have the following problems: First, the dewatering efficiency is low, and the sludge still has a high moisture content after treatment, resulting in high subsequent transportation and disposal costs; second, sludge is prone to adhere to the inner wall of the equipment during the dewatering process, causing blockage and increasing maintenance frequency and costs.

[0004] Therefore, we propose a sludge dewatering device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sludge dewatering device to solve the problems of low dewatering efficiency and sludge easily adhering to the inner wall of the equipment and causing blockage during the dewatering process, as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sludge dewatering device, comprising a sludge tank, a dewatering cylinder, an adjustment structure, a flushing structure, a water collection structure, and a conveying structure. The dewatering cylinder is fixed to the ground by a support frame. A top plate is fixedly connected to the higher side of the dewatering cylinder by a bracket. The conveying structure is located inside the dewatering cylinder. A cleaning structure is provided at the top of the dewatering cylinder. The conveying structure includes a sludge suction pump, a transport pipe, a motor, and a screw conveying shaft. The input end of the sludge suction pump is connected to the inside of the dewatering cylinder through the transport pipe. The sludge suction pump is located inside the sludge tank. A support plate is fixedly connected to the outside of the top plate. The motor is fixedly connected to the upper surface of the support plate. The output end of the motor is connected to the screw conveying shaft through a coupling. The screw conveying shaft is located inside the dewatering cylinder. A filter cylinder is provided outside the screw conveying shaft.

[0007] Preferably, the filter cylinder is a cylindrical body with multiple water-permeable holes on its wall, and the lower side of the filter cylinder is rotatably connected to a baffle plate on the lower side of the dewatering cylinder. The cylindrical body, combined with the water-permeable holes, can efficiently separate water during sludge transportation through centrifugal force and squeezing, thereby improving dewatering efficiency; the rotatable connection between the lower side of the filter cylinder and the baffle plate of the dewatering cylinder ensures the stable rotation of the filter cylinder.

[0008] Preferably, the filter cartridge is driven by a drive structure, which includes a second motor, a small gear, and a large gear. The second motor is fixed to the outside of the dewatering cartridge, and its output end is connected to the small gear. The large gear is sleeved on the outside of the filter cartridge and meshes with the small gear. The second motor drives the filter cartridge to rotate through gear transmission. The gear meshing transmission is stable and has high power transmission efficiency, providing a continuous and adjustable rotational speed for the filter cartridge. The reduction transmission characteristics of the large and small gears can reduce the rotational speed of the filter cartridge while increasing the torque, avoiding jamming due to excessive sludge resistance. Furthermore, the rotational speed of the filter cartridge can be easily adjusted by the second motor to adapt to the dewatering needs of different sludge concentrations.

[0009] Preferably, the rinsing structure includes an inlet pipe, a main pipe, and branch pipes. The main pipe is connected to an external water source, and the other end is connected to the inlet pipe. The inlet pipe is located on the upper surface of the dewatering cylinder. The branch pipes are in multiple groups, with one end connected to the inlet pipe and the other end extending to the inner wall of the dewatering cylinder. The multiple branch pipes extending to the inner wall of the dewatering cylinder can rinse the inner wall of the filter cylinder and the inside of the dewatering cylinder from different angles, thoroughly removing residual sludge, avoiding clogging of the permeable holes, and ensuring long-term dewatering effect.

[0010] Preferably, the adjustment structure includes an electric push rod and an adjustment plate. The electric push rod is fixed to the top plate and its output end is connected to the adjustment plate. It is slidably connected to the inner wall of the dewatering cylinder. The electric push rod drives the adjustment plate to slide. By changing the distance between the adjustment plate and the outlet of the filter cylinder, the sludge discharge speed and squeezing pressure can be controlled: the smaller the distance, the longer the sludge stays in the filter cylinder and the greater the squeezing pressure, resulting in more thorough dewatering; conversely, the larger the distance, the faster the discharge, adapting to sludge treatment scenarios with different moisture content requirements.

[0011] Preferably, the water collection structure includes a water collection tank and a water collection pipe. The water collection pipe is connected to the water collection tank. One end of the water collection pipe passes through the dewatering cylinder and is located between the outer wall of the dewatering cylinder and the filter cylinder. The water separated by the filter cylinder will flow into the gap between the dewatering cylinder and the filter cylinder. The water collection pipe is located in this gap to collect the filtered water and avoid mixing with untreated sludge.

[0012] Preferably, the edge of the spiral blade is in contact with the inner wall of the filter cylinder. When the spiral blade is in contact with the inner wall of the filter cylinder, it can scrape the inner wall of the filter cylinder during the spiral conveying process, remove the sludge attached to the water permeable holes in time, prevent blockage, and ensure water filtration efficiency.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The sludge dewatering device uses a motor with a small gear and a large gear for drive structure. This not only ensures the stable rotation of the filter cylinder, but also allows adjustment of the filter cylinder's operating state by controlling the motor speed, adapting to the treatment needs of sludge with different concentrations and properties. The adjustment structure uses an electric push rod to control the position of the adjustment plate, which can flexibly change the sludge discharge resistance and residence time, accurately adapting to different dewatering requirements and improving the device's versatility.

[0015] 2. This sludge dewatering device uses the spiral blades of the spiral conveyor shaft to scrape against the inner wall of the filter cylinder to prevent clogging and the water-permeable holes of the filter cylinder to separate water. Combined with the centrifugal force of the rotating filter cylinder and the gravity assistance of the tilt angle, it achieves continuous compression and water separation of sludge during the conveying process, thereby improving dewatering efficiency and reducing the moisture content of sludge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall side structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0018] Figure 3 This is a top view of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the dehydration cylinder of this utility model;

[0020] Figure 5 This is a schematic diagram of the conveying structure of this utility model.

[0021] In the diagram: 1 Sludge tank, 201 Sludge suction pump, 202 Transport pipe, 3 Dewatering cylinder, 301 Top plate, 302 Support, 303 Motor 1, 401 Inlet pipe, 402 Branch pipe, 403 Main pipe, 501 Electric push rod, 502 Adjusting plate, 601 Motor 2, 602 Small gear, 603 Large gear, 7 Water collection tank, 701 Water collection pipe, 8 Filter cylinder, 9 Screw conveyor shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] First, the dewatering efficiency is low, and the sludge still has a high moisture content after treatment, resulting in high subsequent transportation and disposal costs. To solve this problem, please refer to [link / reference needed]. Figures 1-4 This utility model provides a technical solution: a sludge dewatering device, including a sludge tank 1, a dewatering cylinder 3, an adjustment structure, a flushing structure, a water collection structure, and a conveying structure. The dewatering cylinder 3 is fixed to the ground by a support frame. A top plate 301 is fixedly connected to the higher side of the dewatering cylinder 3 via a bracket 302. The conveying structure is located inside the dewatering cylinder 3, and a washing structure is provided at the top of the dewatering cylinder 3. The conveying structure includes a sludge suction pump 201, a transport pipe 202, a motor 303, and a screw conveyor shaft 9. The input end of the sludge suction pump 201 is connected to the inside of the dewatering cylinder 3 through the transport pipe 202. The sludge suction pump 201 is located inside the sludge tank 1. The sludge suction pump 201 pumps the sludge from the sludge tank 1 into the dewatering cylinder 3 through the transport pipe 202, achieving automated sludge conveying without manual handling, thus reducing labor costs. The sludge tank 1 serves as the initial storage space for the sludge to be treated and can temporarily store a certain amount of sludge. A support plate is fixedly connected to the outer side of the top plate 301. Motor 303 is fixedly connected to the upper surface of the support plate. The output end of motor 303 is connected to the screw conveyor shaft 9 via a coupling, providing power to the screw conveyor shaft 9. The stable output torque drives the screw shaft 9 to rotate, ensuring continuous screw conveying and squeezing operations. The screw conveyor shaft 9 is located inside the dewatering cylinder 3. The edges of the screw blades of the screw conveyor shaft 9 are in contact with the inner wall of the filter cylinder 8. The water in the sludge is squeezed out through the squeezing action between the blades and the filter cylinder. A filter cylinder 8 is located on the outer side of the screw conveyor shaft 9. The filter cylinder 8 is a cylindrical body with multiple water-permeable holes in its wall. The lower side of the filter cylinder 8 is rotatably connected to a baffle plate on the lower side of the dewatering cylinder 3. The filter cylinder 8 is driven by a drive structure, which includes a second motor 601, a small gear 602 and a large gear 603. The second motor 601 is fixed on the outside of the dewatering cylinder 3. The output end of the second motor 601 is connected to the small gear 602. The large gear 603 is sleeved on the outside of the filter cylinder 8 and meshes with the small gear 602.

[0025] Example 2:

[0026] During the dewatering process, sludge easily adheres to the inner wall of the equipment, causing blockages and increasing maintenance frequency and costs. To solve this problem, based on Implementation 1, the rinsing structure includes an inlet pipe 401, a main pipe 403, and branch pipes 402. The main pipe 403 is connected to an external water source to ensure a stable supply of rinsing water and provide sufficient water volume for the subsequent branch pipes. The other end is connected to the inlet pipe 401, which is located on the upper surface of the dewatering cylinder 3. The branch pipes 402 consist of multiple sets, one end of which is connected to the inlet pipe 401, and the other end extends to the inner wall of the dewatering cylinder 3, allowing the rinsing water to be evenly sprayed onto the inner wall of the dewatering cylinder 3 and the outer wall of the filter cylinder 8. The adjustment structure includes an electric push rod 501 and an adjustment plate 502. The electric push rod 501 is fixed to the top plate 301, and its output end is connected to the adjustment plate 502. The adjustment plate 502 is slidably connected to the inner wall of the dewatering cylinder 3. It is slidably connected to the inner wall of the dewatering cylinder 3, and adjusts the resistance when sludge is discharged by changing its own position: when the resistance increases, the sludge is squeezed in the filter cylinder 8 for a longer time and the pressure increases, resulting in more thorough dewatering; when the resistance decreases, the sludge discharge speed can be accelerated, adapting to high flow rate processing scenarios.

[0027] The water collection structure includes a water collection tank 7 and a water collection pipe 701. The water collection pipe 701 is connected to the water collection tank 7, and one end of the water collection pipe 701 passes through the dehydration cylinder 3 and is located between the outer wall of the dehydration cylinder 3 and the filter cylinder 8. It quickly guides the water seeping from the water permeable holes of the filter cylinder 8 to the water collection tank 7, preventing water from accumulating in the dehydration cylinder 3.

[0028] Working Principle: The sludge pump 201 pumps sludge from the sludge tank 1 through the transport pipe 202 to the filter cylinder 8 inside the dewatering cylinder 3. Motor 1 303 drives the screw conveyor shaft 9 to rotate, and the screw blades push the sludge towards the lower side of the dewatering cylinder 3. Simultaneously, the blades adhere to the inner wall of the filter cylinder 8, applying pressure to the sludge and causing water to seep out through the permeable holes of the filter cylinder 8. Motor 2 601 drives the filter cylinder 8 to rotate via the pinion gear 602 and the gear 603, creating relative motion with the screw conveyor shaft 9, further enhancing the pressure and friction on the sludge and improving dewatering efficiency. The seeped water flows into the collection tank 7 through the collection pipe 701, achieving sludge-water separation. The electric push rod 501 drives the adjusting plate 502 to slide, controlling the degree of dewatering by changing the sludge discharge resistance. The rinsing structure sprays clean water onto the inner walls of the filter cylinder 8 and the dewatering cylinder 3 through the water distribution pipe 402 to prevent sludge from clogging the permeable holes and maintain the device's performance.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A sludge dewatering device, comprising a sludge tank (1), a dewatering cylinder (3), an adjustment structure, a flushing structure, a water collection structure, and a conveying structure, characterized in that: The dewatering cylinder (3) is fixed to the ground by a support frame. The top plate (301) is fixedly connected to the higher side of the dewatering cylinder (3) by a bracket (302). The conveying structure is located inside the dewatering cylinder (3). A cleaning structure is provided on the top of the dewatering cylinder (3). The conveying structure includes a sludge pump (201), a transport pipe (202), a motor (303), and a screw conveyor shaft (9). The input end of the sludge pump (201) is connected to the inside of the dewatering cylinder (3) through the transport pipe (202). The sludge pump (201) is located inside the sludge tank (1). A support plate is fixedly connected to the outside of the top plate (301). The motor (303) is fixedly connected to the upper surface of the support plate. The output end of the motor (303) is connected to the screw conveyor shaft (9) through a coupling. The screw conveyor shaft (9) is located inside the dewatering cylinder (3). A filter cylinder (8) is provided on the outside of the screw conveyor shaft (9).

2. The sludge dewatering device according to claim 1, characterized in that: The filter cylinder (8) is a cylindrical body with multiple water-permeable holes on its wall. The lower side of the filter cylinder (8) is rotatably connected to the lower side baffle of the dewatering cylinder (3).

3. The sludge dewatering device according to claim 1, characterized in that: The filter cylinder (8) is driven by a drive structure, which includes a second motor (601), a small gear (602) and a large gear (603). The second motor (601) is fixed on the outside of the dewatering cylinder (3). The output end of the second motor (601) is connected to the small gear (602). The large gear (603) is sleeved on the outside of the filter cylinder (8) and meshes with the small gear (602).

4. The sludge dewatering device according to claim 1, characterized in that: The rinsing structure includes an inlet pipe (401), a main pipe (403), and a branch pipe (402). The main pipe (403) is connected to an external water source, and the other end is connected to the inlet pipe (401). The inlet pipe (401) is set on the upper surface of the dehydration cylinder (3). The branch pipe (402) consists of multiple sets, with one end connected to the inlet pipe (401) and the other end extending to the inner wall of the dehydration cylinder (3).

5. The sludge dewatering device according to claim 1, characterized in that: The adjustment structure includes an electric push rod (501) and an adjustment plate (502). The electric push rod (501) is fixed on the top plate (301) and its output end is connected to the adjustment plate (502). The adjustment plate (502) is slidably connected to the inner wall of the dehydration cylinder (3).

6. The sludge dewatering device according to claim 1, characterized in that: The water collection structure includes a water collection tank (7) and a water collection pipe (701). The water collection pipe (701) is connected to the water collection tank (7). One end of the water collection pipe (701) passes through the dehydration cylinder (3) and is located between the outer wall of the dehydration cylinder (3) and the filter cylinder (8).

7. The sludge dewatering device according to claim 1, characterized in that: The edge of the spiral blade of the spiral conveying shaft (9) is in contact with the inner wall of the filter cylinder (8).

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