Centrifugal sludge dewatering machine for leachate treatment
By introducing a cleaning device into the sludge dewatering machine, the problem of clogging of the hollow shaft was solved, and an effective sludge dewatering effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-10
AI Technical Summary
The last part of the sludge is prone to adhering and remaining inside the hollow shaft, causing blockage and affecting the use of the sludge dewatering machine.
A centrifugal sludge dewatering machine for leachate treatment was designed, comprising a support frame, a motor, a hollow rotating shaft, and a cleaning device. The cleaning device consists of a placement frame, a threaded rod, a moving frame, an electric telescopic rod, and a cleaning block, and is used to clean the residual sludge inside the hollow rotating shaft.
The cleaning device effectively removes sludge from inside the hollow shaft, preventing blockages and improving the performance of the sludge dewatering machine.
Smart Images
Figure CN223980611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dewatering machines, and in particular to a centrifugal sludge dewatering machine for leachate treatment. Background Technology
[0002] A centrifugal sludge dewatering machine is a device that uses high-speed rotation to generate centrifugal force, separating water from sludge. It is widely used in wastewater treatment plants, effectively reducing sludge volume and improving treatment efficiency.
[0003] When treating leachate from sludge, the sludge is fed into a rotating drum inside the outer casing through the inlet of a hollow shaft. The drum is then driven by a motor on one side of the support via a differential gear. The sludge is compressed under centrifugal force and expelled by an internal auger, while the water is separated through a filter cloth or filter, ultimately yielding dewatered dry sludge and filtrate. However, when the last portion of sludge reaches the inner drum through the hollow shaft, it tends to adhere and remain inside, causing blockage and affecting subsequent operation of the sludge dewatering machine. Utility Model Content
[0004] The technical problem this invention aims to solve is that when the last part of the sludge reaches the inner drum through the hollow shaft, it tends to adhere to and remain inside the hollow shaft, causing blockage and affecting the subsequent use of the sludge dewatering machine.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a centrifugal sludge dewatering machine for leachate treatment, including a support and an installation assembly. A housing is provided on one side of the support, a motor is provided on one side of the support, a hollow rotating shaft is provided inside the housing, and a cleaning device is provided on one side of the hollow rotating shaft by means of the installation assembly. The cleaning device cleans and removes the sludge remaining inside the hollow rotating shaft.
[0006] The effect achieved by the above-mentioned components is as follows: when treating leachate in sludge, the sludge is fed into the drum inside the outer shell through the feed port of the hollow rotating shaft. The drum inside the outer shell is then driven to rotate by a motor on one side of the support through a differential. The sludge is then compressed under centrifugal force and squeezed out by the internal auger, while the water is separated through the filter cloth or filter and discharged. Finally, dewatered dry sludge and filtrate are obtained. Then, a cleaning device fixed to the hollow rotating shaft by the mounting components is used to clean and remove the sludge adhering to the inside of the hollow rotating shaft.
[0007] Preferably, the cleaning device includes a placement frame, a threaded rod, a movable frame, an electric telescopic rod, and a cleaning block. The placement frame is located on one side of the hollow rotating shaft. The threaded rod rotates inside the placement frame to drive the movable frame on the surface to move up and down. The movable frame drives the cleaning block at the output end of the electric telescopic rod to align with the hollow rotating shaft. An operating block is provided on one side of the threaded rod, and the operating block raises the dimension of one side of the threaded rod.
[0008] The effect achieved by the above components is as follows: When using the cleaning device, rotating the operating block fixed to the threaded rod causes the threaded rod to rotate inside the placement frame. Then, the moving frame, which is threadedly connected to the surface of the threaded rod, moves and slides on the surface of the placement frame. The electric telescopic rod fixed on the moving frame is aligned with the center of the hollow rotating shaft, and the cleaning block fixed at the output end of the electric telescopic rod is aligned with the center of the hollow rotating shaft. Then, the electric telescopic rod is activated, causing the cleaning block to reach the inside of the hollow rotating shaft to push and scrape away the residual and adhered sludge inside the hollow rotating shaft, allowing the sludge to reach the drum inside the outer shell. By using the cleaning device, the material remaining inside the hollow rotating shaft can be pushed to the drum inside the outer shell for centrifugal dewatering together with the next batch of sludge. This avoids the situation where some sludge easily adheres to and remains inside the hollow rotating shaft, causing blockage, thereby improving the performance of the sludge dewatering machine.
[0009] Preferably, a rubber ring is provided on the outer side of the cleaning block, and the rubber ring replaces the wear between the cleaning block and the inner wall of the hollow rotating shaft.
[0010] The effect achieved by the above components is that by fixing a rubber ring on the surface of the cleaning block, the wear between the cleaning block and the hollow rotating shaft is replaced, thereby improving the service life of the cleaning block.
[0011] Preferably, a conical block is provided in the central area of the side of the cleaning block away from the electric telescopic rod. The conical block keeps the sludge on the cleaning block in the edge area and prevents it from accumulating in the middle of the cleaning block.
[0012] The effect achieved by the above components is that by fixing the conical block in the central area of the cleaning block, the sludge cannot accumulate in the middle of the cleaning block, and the sludge can be more easily removed from the cleaning block.
[0013] Preferably, several anti-slip blocks are provided on both sides of the operating block, and the several anti-slip blocks increase the surface friction of the operating block.
[0014] The effect achieved by the above components is that by fixing several anti-slip blocks on the surface of the operating block, the friction between the operator's hand and the operating block is increased, making the operating block easier to rotate.
[0015] Preferably, the mounting assembly includes a mounting block, bolts, and a connecting plate. The mounting block is disposed on one side of the hollow rotating shaft, and the bolts are inserted inside the mounting block to fix the connecting plate inside the mounting block.
[0016] The effect achieved by the above components is as follows: when installing and fixing the cleaning device, move the placement frame so that the connecting plate on one side of the placement frame is inserted into the mounting block fixed to the hollow rotating shaft. Then rotate the bolt so that the bolt passes through the mounting block and reaches the inside of the connecting plate for thread fixing. Then the position of the placement frame is fixed. By using the installation components, the cleaning device can be quickly installed and fixed, which makes it convenient for subsequent operators to use the cleaning device.
[0017] Preferably, a washer is provided between the bolt and the mounting block, and the washer increases the contact area between the bolt and the mounting block.
[0018] The effect achieved by the above components is to increase the contact area between the bolt and the mounting block by abutting the bolt and the washer, so that the bolt can better install and fix the connecting plate.
[0019] Preferably, a reinforcing plate is provided at the connection between the connecting plate and the placement rack, and the reinforcing plate improves the connection strength between the connecting plate and the placement rack.
[0020] The effect achieved by the above components is to improve the connection strength between the connecting plate and the placement frame by fixing the reinforcing plate to the connecting plate and the placement frame, thereby preventing deformation at the connection point between the connecting plate and the placement frame.
[0021] In summary, the beneficial effects of this utility model are as follows:
[0022] By using a cleaning device, the material remaining inside the hollow shaft can be pushed to the drum inside the outer shell, where it can be centrifuged and dewatered together with the next batch of sludge. This prevents some sludge from easily adhering to and remaining inside the hollow shaft, which could cause blockage and thus improve the performance of the sludge dewatering machine.
[0023] By using the installation components, the cleaning device can be quickly installed and secured, making it convenient for subsequent operators to use the cleaning device. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 This is a three-dimensional structural diagram of the cleaning device of this utility model;
[0027] Figure 3This utility model Figure 2 A schematic diagram of the left-side stereoscopic structure;
[0028] Figure 4 This utility model Figure 2 Enlarged view of point A.
[0029] Legend: 1. Bracket; 2. Housing; 3. Motor; 4. Hollow shaft; 5. Cleaning device; 51. Placement rack; 52. Threaded rod; 53. Moving rack; 54. Electric telescopic rod; 55. Cleaning block; 56. Operating block; 57. Rubber ring; 58. Conical block; 59. Anti-slip block; 6. Mounting assembly; 61. Mounting block; 62. Bolt; 63. Connecting plate; 64. Gasket; 65. Reinforcing plate. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Figures 1 to 4 The centrifugal sludge dewatering machine for leachate treatment shown includes a support frame 1 and an mounting assembly 6. A housing 2 is located on one side of the support frame 1, and a motor 3 is also located on the same side. A hollow rotating shaft 4 is located inside the housing 2. A cleaning device 5 is mounted on one side of the hollow rotating shaft 4 via the mounting assembly 6. The cleaning device 5 cleans and removes residual sludge inside the hollow rotating shaft 4. During leachate treatment, the sludge is fed into the rotating drum inside the housing 2 through the inlet of the hollow rotating shaft 4. The rotating drum inside the housing 2 is driven to rotate by the motor 3 on one side of the support frame via a differential. The sludge is then compressed under centrifugal force and squeezed out by the internal auger, while the water is separated through a filter cloth or filter and discharged. Finally, dewatered dry sludge and filtrate are obtained. The cleaning device 5, fixed to the hollow rotating shaft 4 by the mounting assembly 6, then cleans and removes any remaining sludge adhering to the inside of the hollow rotating shaft 4.
[0033] Figures 1 to 4The cleaning device 5 shown includes a placement frame 51, a threaded rod 62, a movable frame 53, an electric telescopic rod 54, and a cleaning block 55. The placement frame 51 is located on one side of the hollow rotating shaft 4. The threaded rod 52 rotates inside the placement frame 51 to drive the movable frame 53 on the surface to move up and down. The movable frame 53 drives the cleaning block 55 at the output end of the electric telescopic rod 54 to align with the hollow rotating shaft 4. An operating block 56 is provided on one side of the threaded rod 52. The operating block 56 raises the dimension of one side of the threaded rod 52. When using the cleaning device 5, rotate the operating block 56 fixed to the threaded rod 52, causing the threaded rod 52 to rotate inside the placement frame 51. Then, the movable frame 53, threadedly connected to the surface of the threaded rod 52, moves and slides on the surface of the placement frame 51. The electric telescopic rod 54 fixed on the movable frame 53 is then aligned with the center of the hollow rotating shaft 4, and the cleaning block 55 fixed at the output end of the electric telescopic rod 54 is aligned with the center of the hollow rotating shaft 4. Then, the electric telescopic rod 54 is activated. The electric telescopic rod 54 can be a multi-section electric telescopic rod, model DUM6. 04Z, then the cleaning block 55 is driven by the electric telescopic rod 54 to the inside of the hollow rotating shaft 4 to push and scrape away the sludge remaining and adhering inside the hollow rotating shaft 4, so that the sludge reaches the rotating drum inside the outer shell 2. By using the cleaning device 5, the material remaining inside the hollow rotating shaft 4 can be pushed to the rotating drum inside the outer shell 2, and centrifuged and dewatered together with the next batch of sludge. This avoids the situation where some sludge easily adheres and remains inside the hollow rotating shaft 4, which would cause the hollow rotating shaft 4 to become blocked, thereby improving the performance of the sludge dewatering machine.
[0034] Figures 1 to 4 The cleaning block 55 shown has a rubber ring 57 on its outer side, which replaces the wear between the cleaning block 55 and the inner wall of the hollow rotating shaft 4. By fixing the rubber ring 57 to the surface of the cleaning block 55, the wear between the cleaning block 55 and the hollow rotating shaft 4 is replaced, thereby extending the service life of the cleaning block 55. A conical block 58 is provided in the central area of the side of the cleaning block 55 away from the electric telescopic rod 54. The conical block 58 keeps the sludge on the cleaning block 55 at the edge area, preventing it from accumulating in the middle of the cleaning block 55. By fixing the conical block 58 in the central area of the cleaning block 55, sludge cannot accumulate in the middle of the cleaning block 55, making it easier for the sludge to detach from the cleaning block 55. Several anti-slip blocks 59 are provided on both sides of the operating block 56, which increases the surface friction of the operating block 56. By fixing several anti-slip blocks 59 to the surface of the operating block 56, the friction between the operator's hand and the operating block 56 is increased, making the operating block 56 easier to rotate.
[0035] Figures 1 to 4The installation assembly 6 shown includes a mounting block 61, bolts 62, and a connecting plate 63. The mounting block 61 is located on one side of the hollow rotating shaft 4, and the bolts 62 are inserted into the mounting block 61 to fix the connecting plate 63 inside the mounting block 61. When installing and fixing the cleaning device 5, the placement frame 51 is moved so that the connecting plate 63 on one side of the placement frame 51 is inserted into the mounting block 61 fixed to the hollow rotating shaft 4. Then, the bolts 62 are rotated so that they pass through the mounting block 61 and reach the interior of the connecting plate 63 for threaded fixing. This completes the fixing of the placement frame 51. By using the installation assembly 6, the cleaning device 5 can be quickly installed and fixed, making it convenient for subsequent operators to use the cleaning device 5.
[0036] Figures 1 to 4 A washer 64 is provided between the bolt 62 and the mounting block 61, increasing the contact area between the bolt 62 and the mounting block 61. The contact area between the bolt 62 and the mounting block 61 is increased by the contact between the bolt 62 and the washer 64, allowing the bolt 62 to better secure the connecting plate 63. A reinforcing plate 65 is provided at the connection between the connecting plate 63 and the placement frame 51, increasing the connection strength between them. By fixing the reinforcing plate 65 to both the connecting plate 63 and the placement frame 51, the connection strength between the connecting plate 63 and the placement frame 51 is improved, preventing deformation at the connection point under stress.
[0037] Working principle: When treating leachate from sludge, the sludge is fed into the drum inside the outer shell 2 through the feed port of the hollow rotating shaft 4. The drum inside the outer shell 2 is then driven to rotate by the motor 3 on one side of the support 1 through the differential. The sludge is then compressed under centrifugal force and squeezed out by the internal auger, while the water is separated through the filter cloth or filter and discharged. Finally, dewatered dry sludge and filtrate are obtained. Then, the cleaning device 5, which is fixed to the hollow rotating shaft 4 by the mounting component 6, is used to clean and remove the sludge adhering to the inside of the hollow rotating shaft 4. When using the cleaning device 5, rotate the operating block 56 fixed to the threaded rod 52, causing the threaded rod 52 to rotate inside the placement frame 51. Then, the moving frame 53, which is threadedly connected to the surface of the threaded rod 52, moves and slides on the surface of the placement frame 51. The electric telescopic rod 54 fixed on the moving frame 53 is aligned with the center of the hollow rotating shaft 4, and the cleaning block 55 fixed at the output end of the electric telescopic rod 54 is aligned with the center of the hollow rotating shaft 4. Then, start the electric telescopic rod 54 to make the cleaning block 55 reach the inside of the hollow rotating shaft 4 to push and scrape away the sludge remaining and adhering inside the hollow rotating shaft 4, so that the sludge reaches the drum inside the outer shell 2. By using the cleaning device 5, the material remaining inside the hollow rotating shaft 4 can be pushed and brought to the drum inside the outer shell 2 for centrifugal dewatering together with the next batch of sludge. This avoids the situation where some sludge easily adheres to and remains inside the hollow rotating shaft 4, causing the hollow rotating shaft 4 to become clogged, thereby improving the performance of the sludge dewatering machine.
[0038] When installing the cleaning device 5, move the placement frame 51 so that the connecting plate 63 on one side of the placement frame 51 is inserted into the mounting block 61 fixed to the hollow rotating shaft 4. Then rotate the bolt 62 so that the bolt 62 passes through the washer 64 and the mounting block 61 to reach the inside of the connecting plate 63 for thread fixing. Then the position of the placement frame 51 is fixed. By using the installation component 6, the cleaning device 5 can be quickly installed and fixed, which makes it convenient for subsequent operators to use the cleaning device 5.
[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A centrifugal sludge dewatering machine for leachate treatment, comprising a support (1) and a mounting assembly (6), characterized in that: The shell (2) is arranged on one side of the support (1), and the motor (3) is arranged on the other side of the support (1), the hollow rotating shaft (4) is arranged in the shell (2), the cleaning device (5) is arranged on one side of the hollow rotating shaft (4) through the mounting assembly (6), and the cleaning device (5) is used for cleaning and removing residual sludge in the hollow rotating shaft (4).
2. The centrifugal sludge dewatering machine for leachate treatment according to claim 1, characterized in that: The cleaning device (5) comprises a placing rack (51), a threaded rod (52), a moving rack (53), an electric telescopic rod (54) and a cleaning block (55), the placing rack (51) is arranged on one side of the hollow rotating shaft (4), the threaded rod (52) is rotatable in the placing rack (51) to drive the moving rack (53) on the surface to move up and down, the moving rack (53) drives the cleaning block (55) at the output end of the electric telescopic rod (54) to be aligned with the hollow rotating shaft (4), and the operation block (56) is arranged on one side of the threaded rod (52).
3. The centrifugal sludge dewatering machine for leachate treatment according to claim 2, characterized in that: The rubber ring (57) is arranged on the outer side of the cleaning block (55), and the rubber ring (57) is used for replacing the cleaning block (55) to wear the inner wall of the hollow rotating shaft (4).
4. The centrifugal sludge dewatering machine for leachate treatment according to claim 3, characterized in that: The conical block (58) is arranged on the side of the cleaning block (55) away from the electric telescopic rod (54) and in the central region, so that the sludge on the cleaning block (55) is arranged in the edge region and is not accumulated in the middle of the cleaning block (55).
5. The centrifugal sludge dewatering machine for leachate treatment according to claim 4, characterized in that: The anti-skid blocks (59) are arranged on both sides of the operation block (56), and the anti-skid blocks (59) are used for improving the surface friction of the operation block (56).
6. The centrifugal sludge dewatering machine for leachate treatment according to claim 5, characterized in that: The mounting assembly (6) comprises a mounting block (61), a bolt (62) and a connecting plate (63), the mounting block (61) is arranged on one side of the hollow rotating shaft (4), the bolt (62) is inserted into the mounting block (61), and the connecting plate (63) in the mounting block (61) is fixed.
7. The centrifugal sludge dewatering machine for leachate treatment according to claim 6, characterized in that: The gasket (64) is arranged between the bolt (62) and the mounting block (61), and the gasket (64) is used for improving the contact area of the bolt (62) and the mounting block (61).
8. The centrifugal sludge dewatering machine for leachate treatment according to claim 7, characterized in that: The reinforcing plate (65) is arranged at the connecting position of the connecting plate (63) and the placing rack (51), and the reinforcing plate (65) is used for improving the connecting strength of the connecting plate (63) and the placing rack (51).