Center-driven sludge thickener

Abstract

The utility model discloses a center-driven sludge thickener in the technical field of sludge thickening. The center-driven sludge thickener comprises a thickening tank, a sludge discharge pipe; the central column is vertically arranged; a support table; a service bridge; a rotating cage; a transmission mechanism; each mud scraping mechanism comprises a height adjusting assembly, a mud scraping support, a plurality of grid bars, an adjustable telescopic rod and a plurality of mud scraping plates; according to the mud scraping device, the height adjusting assembly and the adjustable telescopic rod are matched with each other, so that the posture of the mud scraping bracket can be conveniently and quickly adjusted, the mud scraping plate can be fully attached to the bottom of the concentration tank, a large amount of field installation and debugging work is reduced, and the mud scraping device has the advantages of being simple to operate, time-saving and labor-saving; and the downtime is obviously shortened, and maintenance and overhaul are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge concentration, in particular to a centrally driven sludge concentrator. Background Art

[0002] Sludge thickening is a key step in sludge treatment processes, significantly reducing sludge volume and improving subsequent treatment efficiency. In existing technologies, this process is typically accomplished using a centrally driven sludge thickener. During operation, a centrally driven sludge thickener separates suspended solids (sludge) from the wastewater. The separated supernatant is discharged through a drain pipe on the tank wall, while the solids gradually settle to the bottom of the thickening tank, forming a sludge layer and concentrating the sludge. Simultaneously, a transmission mechanism drives the rotating cage, which in turn drives a scraping mechanism at the bottom of the thickening tank, scraping the sludge from the bottom and transferring it to a sludge collection hopper. The sludge is then discharged through a sludge discharge pipe to the next process.

[0003] However, in the existing center-driven sludge thickener, since the scraper bracket and the rotating cage are rigidly fixed, a large amount of on-site installation and debugging work is required to ensure that the scraper blade is fully fitted with the bottom of the thickening tank to achieve the best scraping effect. The operation is complicated, time-consuming and labor-intensive, and it is not convenient for maintenance and repair, which reduces the processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a central drive sludge thickener, which solves the technical problems of the prior art such as large workload of on-site installation and debugging, complex operation, time-consuming and labor-intensive operation, inconvenient maintenance and repair, and reduced processing efficiency.

[0005] The utility model discloses a central drive sludge thickener, comprising:

[0006] Concentration tank, with a mud collection pit at the center of the bottom;

[0007] A mud discharge pipe, one end of which is connected to the mud collection pit;

[0008] A central column is arranged vertically and installed at the bottom of the mud collection pit;

[0009] A support platform is installed on the top of the central column;

[0010] A working bridge is arranged transversely, with one end being located at the top of the wall of the concentration tank and the other end being located at the top of the central column;

[0011] A rotating cage is mounted outside the central column and is rotatably connected to the support platform;

[0012] A transmission mechanism is mounted on the support platform and is in transmission connection with the rotating cage;

[0013] Multiple scraping mechanisms are evenly arranged around the central column, including

[0014] The height adjustment component is installed on the rotating cage.

[0015] The scraper bracket has one end hinged to the driving end of the height adjustment component.

[0016] Multiple bars are arranged vertically and spaced apart on the scraper bracket.

[0017] The adjustable telescopic rod has one end hinged to the scraper bracket and the other end hinged to the rotating cage.

[0018] A plurality of scraper blades are evenly spaced and arranged at the bottom of the scraper bracket.

[0019] This application can quickly and easily adjust the posture of the scraper bracket through the cooperation of the height adjustment component and the adjustable telescopic rod, thereby ensuring that the scraper blade can fully fit with the bottom of the concentration tank. It reduces a lot of on-site installation and debugging work, and has the advantages of simple operation, time-saving and labor-saving, and significantly shortens downtime, making it easier to carry out maintenance and repairs.

[0020] On the basis of the above technical solution, the solution of this application can also be improved as follows:

[0021] Preferably, the adjustable telescopic rod comprises:

[0022] Nuts;

[0023] A circular frame, one end of which is hinged to the rotating cage;

[0024] One end of the connecting rod is hinged to the mud scraper bracket, and the other end is inserted into the circular frame and threadedly connected to the nut; adopting this solution, the length adjustment of the adjustable telescopic rod can be completed simply and conveniently, thereby improving the debugging efficiency, and the overall structure has the advantages of simplicity, compactness and high bearing strength, which reduces manufacturing cost and maintenance difficulty and ensures operational stability.

[0025] Preferably, the height adjustment component includes:

[0026] drive wheels;

[0027] A support seat, mounted on the mud scraper bracket;

[0028] A fixing seat, mounted on the mud scraper bracket;

[0029] a threaded rod, arranged vertically, with one end rotatably connected to the support base and the other end passing through the support base and connected to the driving wheel;

[0030] The adjusting block is threadedly sleeved on the threaded rod, and one side is vertically slidably connected to the rotating cage, and the other side is hinged to one end of the scraper bracket; adopting this solution, the height adjustment of the scraper bracket can be completed simply and conveniently, the debugging efficiency is improved, the actual operation is convenient, and the structure is simple and compact, the bearing strength is high, thereby reducing the manufacturing cost and maintenance difficulty, and ensuring the operation stability.

[0031] Preferably, it includes:

[0032] An overflow weir is provided on the inner periphery of the concentrating tank and is formed with an isolation ring groove;

[0033] a drain pipe, one end of which is connected to the isolation ring groove;

[0034] The water retaining plate is arranged outside the overflow weir; the adoption of this solution improves the water outlet stability and water quality of the concentration tank, promotes the normal operation and efficient concentration of the equipment, and provides a strong guarantee for subsequent liquid treatment or utilization.

[0035] Preferably, it includes:

[0036] A flow stabilizing cylinder is installed at the bottom of the support platform and sleeved outside the rotating cage;

[0037] A plurality of counterweight blocks are mounted on the scraper bracket in a one-to-one correspondence; adopting this solution improves the concentration efficiency and the scraping efficiency, reduces the scraping resistance, and enhances the stability of the equipment.

[0038] Preferably, it includes:

[0039] skimming mechanisms, including

[0040] A slag discharge hopper, opening upward and arranged inside the overflow weir;

[0041] A slag discharge pipe, one end of which is connected to the bottom of the slag discharge hopper and the other end of which is passed out of the concentration tank;

[0042] The skimming plate is arranged horizontally and is provided at the top ends of the plurality of bars in the same scraping mechanism, and the ends thereof can be fitted with the outer side of the slag discharge bucket. By adopting this solution, the scum on the water surface can be removed to prevent it from being discharged together with the supernatant, thereby improving the purity and quality of the supernatant.

[0043] Preferably, the skimming mechanism further comprises:

[0044] a support frame, mounted on the end of the skimming plate;

[0045] The slag scraper is installed at the bottom of the support frame and can pass over the slag discharge bucket; adopting this solution further improves the efficiency of slag removal and improves the slag removal effect.

[0046] Through the above technical solution, the utility model achieves the following beneficial effects:

[0047] 1. This application uses the height adjustment assembly and the adjustable telescopic rod to quickly and easily adjust the position of the scraper bracket, thereby ensuring that the scraper blade can fully fit the bottom of the thickening tank. This reduces a lot of on-site installation and commissioning work, and has the advantages of simple operation, saving time and labor, and significantly shortening downtime, making maintenance and repair easier.

[0048] 2. This application can simply and conveniently complete the length adjustment of the telescopic rod and the height adjustment of the scraper bracket, thereby improving the debugging efficiency and facilitating practical operation. The overall structure has the advantages of being simple, compact and high in bearing strength, which reduces the manufacturing cost and maintenance difficulty and ensures operational stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] Figure 1 This is a structural diagram of a centrally driven sludge thickener according to a specific embodiment of the present application;

[0051] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0052] Figure 3 for Figure 1 A magnified schematic diagram of point B in the middle;

[0053] Figure 4 for Figure 1 Enlarged schematic diagram of point C in the middle;

[0054] Description of reference numerals:

[0055] 1. Concentration tank; 2. Mud discharge pipe; 3. Center column; 4. Support platform; 5. Working bridge; 6. Rotating cage; 7. Transmission mechanism; 8. Mud scraping mechanism; 9. Overflow weir; 10. Drain pipe; 11. Water baffle; 12. Flow stabilizer; 13. Counterweight; 14. Slag skimming mechanism;

[0056] 101, mud collection pit; 801, height adjustment assembly; 802, mud scraper bracket; 803, grating bar; 804, adjustable telescopic rod; 805, mud scraper; 901, isolation ring groove; 1401, slag discharge bucket; 1402, slag discharge pipe; 1403, slag skimmer; 1404, support frame; 1405, slag scraper;

[0057] 8011, driving wheel; 8012, supporting seat; 8013, fixing seat; 8014, threaded rod; 8015, adjusting block; 8041, nut; 8042, return frame; 8043, connecting rod. DETAILED DESCRIPTION

[0058] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0059] First of all, it should be noted that in the following description, some directional words involved in order to clearly illustrate the technical solution of the utility model, such as the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., all have meanings that are inferred from the normal directions of the components in the central drive sludge thickener. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0060] In this application, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0061] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0062] Example:

[0063] like Figure 1 As shown, an embodiment of the present application discloses a centrally driven sludge thickener for sludge thickening, the specific structure of which includes: a thickening tank 1, a sludge discharge pipe 2, a central column 3, a support platform 4, a working bridge 5, a rotating cage 6, a transmission mechanism 7 and multiple sludge scraping mechanisms 8.

[0064] A sludge collecting pit 101 is provided at the center of the bottom of the thickening tank 1; the thickening tank 1 is preferably circular and cast from reinforced concrete, so as to have sufficient strength and stability to adapt to the sedimentation and thickening process of the sludge; the sludge collecting pit 101 is preferably a truncated cone structure, so that the sludge can be evenly distributed during the aggregation process, avoiding local overload and blockage.

[0065] One end of the sludge discharge pipe 2 is connected to the sludge collecting pit 101 and is used to discharge the sludge in the sludge collecting pit 101 for subsequent dehydration or disposal.

[0066] The central column 3 is arranged vertically and installed at the bottom of the mud collecting pit 101. It plays a supporting role and serves as the support and rotation center of the entire equipment.

[0067] The support platform 4 is installed on the top of the central column 3 and is used to support the transmission mechanism 7 and the rotating cage 6 to ensure the stable operation of the equipment.

[0068] The working bridge 5 is arranged horizontally, with one end being located at the top of the pool wall of the concentration pool 1 and the other end being located at the top of the central column 3 , and is used to provide a passage for operators to pass through and perform maintenance.

[0069] The rotating cage 6 is sleeved on the outside of the central column 3 and is rotatably connected to the support platform 4. It is used to drive multiple sludge scraping mechanisms 8 to scrape sludge synchronously.

[0070] The transmission mechanism 7 is installed on the support platform 4 and is in transmission connection with the rotating cage 6 , and is used to provide the rotating cage 6 with the power required for rotation.

[0071] A plurality of scraping mechanisms 8 are evenly arranged around the central column 3 to ensure force balance of the entire device and improve operational stability.

[0072] Specifically, each scraper mechanism 8 includes: a height adjustment component 801, a scraper bracket 802, a plurality of bars 803 and an adjustable telescopic rod 804, which are as follows:

[0073] The height adjustment component 801 is installed on the rotating cage 6 and is used to adjust the height of the mud scraper bracket 802;

[0074] One end of the scraper bracket 802 is hinged to the driving end of the height adjustment component 801 to support the grid bar 803 and the scraper blade 805, thereby achieving sludge scraping;

[0075] Multiple bars 803 are arranged vertically and spaced apart on the scraper bracket 802 to slowly stir the water during the scraping process, thereby promoting the sedimentation of suspended solid matter in the sewage.

[0076] One end of the adjustable telescopic rod 804 is hinged to the scraper bracket 802, and the other end is hinged to the rotating cage 6, for adjusting the posture of the scraper bracket 802;

[0077] A plurality of scraper blades 805 are evenly spaced apart and arranged at the bottom of the scraper bracket 802 . They are in direct contact with the sludge and are used to scrape up the sludge and convey the sludge to the sludge collecting pit 101 from outside to inside.

[0078] It should be noted that the multiple scrapers 805 are arranged to be parallel to each other and have a certain inclination angle, so as to push the sludge toward the central area during the rotary scraping process. In this way, the sludge can be pushed into the sludge collection pit 101 through the relay push of the multiple scrapers 805.

[0079] In the above technical solution, the installation and debugging methods are as follows:

[0080] First, the scraper bracket 802 is driven to move to a suitable height by adjusting the height adjustment component 801, and then the scraper bracket 802 is rotated around the hinge point by adjusting the length of the adjustable telescopic rod 804, thereby realizing the posture adjustment of the scraper bracket 802, thereby ensuring that multiple scraper blades 805 can maintain contact with the bottom of the concentration tank 1.

[0081] The utility model can conveniently and quickly adjust the posture of the scraper bracket 802 through the mutual cooperation of the height adjustment component 801 and the adjustable telescopic rod 804, thereby ensuring that the scraper blade 805 can fully fit with the bottom of the concentration tank 1. It reduces a lot of on-site installation and debugging work, and has the advantages of simple operation, time-saving and labor-saving, and significantly shortens the downtime, making it easier to carry out maintenance and repair.

[0082] In some embodiments, as Figure 1 and Figure 2 As shown, the adjustable telescopic rod 804 includes: a nut 8041, a return frame 8042 and a connecting rod 8043; wherein, one end of the return frame 8042 is hinged to the rotating cage 6; one end of the connecting rod 8043 is hinged to the mud scraper bracket 802, and the other end is inserted into the return frame 8042 and threadedly connected to the nut 8041.

[0083] During adjustment, by rotating the nut 8041 in the forward or reverse direction, the connecting rod 8043 can be driven to extend into or out of the return frame 8042, thereby achieving adjustment of the overall length of the adjustable telescopic rod 804.

[0084] Through the above arrangement, the length adjustment of the adjustable telescopic rod 804 can be completed simply and conveniently, thereby improving the debugging efficiency. The overall structure has the advantages of being simple, compact and having high bearing strength, which reduces the manufacturing cost and maintenance difficulty and ensures the operational stability.

[0085] In some embodiments, as Figure 1 and Figure 3As shown, the height adjustment component 801 includes: a driving wheel 8011, a support base 8012, a fixing base 8013, a threaded rod 8014 and an adjustment block 8015, and its specific configuration is as follows:

[0086] The driving wheel 8011 is used to simplify the operation process of the debugging personnel rotating the threaded rod 8014, reduce the difficulty of rotating the threaded rod 8014, and facilitate the debugging personnel to operate;

[0087] The support base 8012 is mounted on the mud scraper bracket 802 to provide stable support for the threaded rod 8014, ensuring that the threaded rod 8014 remains stable during rotation;

[0088] The fixing seat 8013 is installed on the mud scraper bracket 802 to further stabilize the threaded rod 8014, reduce stress concentration, and enhance the load-bearing capacity;

[0089] The threaded rod 8014 is arranged vertically, and one end is rotatably connected to the support base 8012, and the other end passes through the support base 8012 and is connected to the driving wheel 8011. It drives the adjustment block 8015 to move up and down through the threaded connection;

[0090] The adjusting block 8015 is threadedly sleeved on the threaded rod 8014, and one side is vertically slidably connected to the rotating cage 6, and the other side is hinged to one end of the scraper bracket 802; the adjusting block 8015 adjusts the height of the scraper bracket 802 by moving up and down on the threaded rod 8014, and disperses the force borne by the threaded rod 8014 through the vertical sliding connection with the rotating cage 6, thereby improving the stability of the structure.

[0091] Through the above setting, the height adjustment of the scraper bracket 802 can be completed simply and conveniently, which improves the debugging efficiency and facilitates practical operation. The structure is simple and compact, and the bearing strength is high, thereby reducing the manufacturing cost and maintenance difficulty, and ensuring operational stability.

[0092] In some embodiments, as Figure 1 As shown, it includes: an overflow weir 9, a drain pipe 10 and a water retaining plate 11, and its specific configuration is as follows:

[0093] The overflow weir 9 is provided on the inner periphery of the concentrating tank 1 and is formed with an isolation ring groove 901. The overflow weir 9 is used to ensure that the liquid overflows evenly into the isolation ring groove 901, thereby avoiding the degradation of the effluent quality due to uneven liquid flow and ensuring the stability of the effluent quality of the concentrating tank 1.

[0094] One end of the drain pipe 10 is connected to the isolation ring groove 901 and is used to drain the supernatant liquid overflowing into the isolation ring groove 901;

[0095] The water retaining plate 11 is arranged outside the overflow weir 9; by adjusting its height and angle, the water level and the water flow overflowing into the isolation ring groove 901 can be effectively adjusted, thereby helping to maintain stable operation of the equipment.

[0096] Through the above arrangement, the effluent stability and quality of the concentration tank 1 are improved, the normal operation and efficient concentration of the equipment are promoted, and a strong guarantee is provided for subsequent liquid processing or utilization.

[0097] In some embodiments, as Figure 1 As shown, it includes: a flow stabilizing tube 12 and a plurality of counterweight blocks 13, which are specifically configured as follows:

[0098] The flow stabilizing cylinder 12 is installed at the bottom of the support platform 4 and is sleeved outside the rotating cage 6 to make the fluid flow more stable and help to effectively separate the solid matter and water in the sewage;

[0099] Multiple counterweights 13 are installed one by one on the scraper bracket 802, which are used to increase the weight of the scraper bracket 802 so that it has greater downward force and stability during the scraping process, so that the scraper blade 805 can fit more closely to the bottom of the pool, thereby scraping off the sludge more effectively. The center of gravity of the scraper bracket 802 can also be adjusted to keep it balanced and avoid shaking or tilting during the scraping process.

[0100] Through the above arrangement, the concentration efficiency and the sludge scraping efficiency are improved, the sludge scraping resistance is reduced, and the equipment stability is enhanced.

[0101] In some embodiments, as Figure 1 As shown, it also includes a skimming mechanism 14, which is used to clean the scum, specifically including:

[0102] The slag discharge hopper 1401 is opened upward and is located inside the overflow weir 9;

[0103] The slag discharge pipe 1402 has one end connected to the bottom of the slag discharge hopper 1401 and the other end extending out of the concentration tank 1;

[0104] The skimming plate 1403 is arranged horizontally and is provided at the top of the plurality of bars 803 in the same scraping mechanism 8 , and the end thereof can fit in contact with the outer side of the slag discharge bucket 1401 .

[0105] Specifically, the skimming plate 1403 is connected to the multiple bars 803 in a one-to-one correspondence through multiple support rods arranged at intervals from each other, thereby improving the structural stability and facilitating the adjustment of its height according to the water level, thereby reducing the workload of on-site debugging.

[0106] It should be noted that the skimming plate 1403 is arranged at an angle to guide the scum to approach the outer periphery of the concentration tank 1 during the rotation process.

[0107] When in use, the skimming plate 1403 rotates around the central column 3 driven by the grid bars 803, pushing the scum on the water surface toward the periphery of the pool during the rotation, and then causing the scum to fall into the slag discharge bucket 1401, and finally discharged to the outside through the slag discharge pipe 1402.

[0108] Through the above arrangement, the scum on the water surface can be removed to prevent it from being discharged together with the supernatant, thereby improving the purity and quality of the supernatant.

[0109] Based on the above embodiment, the slag skimming mechanism 14 further includes: a support frame 1404 and a slag scraper 1405; wherein, the support frame 1404 is installed at the end of the slag skimming plate 1403; the slag scraper 1405 is installed at the bottom of the support frame 1404 and can pass above the slag discharge bucket 1401.

[0110] When in use, the slag skimming plate 1403 drives the slag scraper 1405 to move together through the support frame 1404. The slag scraper 1405 pushes the slag guided by the slag skimming plate 1403 into the slag discharge bucket 1401 without interfering with the movement thereof.

[0111] Through the above arrangement, the efficiency of slag removal is further improved and the slag removal effect is improved.

[0112] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0113] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A center-driven sludge thickener, characterized in that: include: Concentration tank, with a mud collection pit at the center of the bottom; A mud discharge pipe, one end of which is connected to the mud collection pit; A central column is arranged vertically and installed at the bottom of the mud collection pit; A support platform is installed on the top of the central column; A working bridge is arranged transversely, with one end being located at the top of the wall of the concentration tank and the other end being located at the top of the central column; A rotating cage is mounted outside the central column and is rotatably connected to the support platform; A transmission mechanism is mounted on the support platform and is in transmission connection with the rotating cage; Multiple scraping mechanisms are evenly arranged around the central column, including The height adjustment component is installed on the rotating cage. The scraper bracket has one end hinged to the driving end of the height adjustment component. Multiple bars are arranged vertically and spaced apart on the scraper bracket. The adjustable telescopic rod has one end hinged to the scraper bracket and the other end hinged to the rotating cage. A plurality of scraper blades are evenly spaced and arranged at the bottom of the scraper bracket.

2. The center-driven sludge thickener according to claim 1, characterized in that: The adjustable telescopic rod comprises: Nuts; A circular frame, one end of which is hinged to the rotating cage; One end of the connecting rod is hinged to the mud scraper bracket, and the other end is inserted into the circular frame and then threadedly connected to the nut.

3. The center-driven sludge thickener according to claim 1, characterized in that: The height adjustment component includes: drive wheels; A support seat, mounted on the mud scraper bracket; A fixing seat, mounted on the mud scraper bracket; a threaded rod, arranged vertically, with one end rotatably connected to the support base and the other end passing through the support base and connected to the driving wheel; The adjusting block is threadedly sleeved on the threaded rod, and one side of the adjusting block is vertically slidably connected to the rotating cage, and the other side is hinged to one end of the mud scraping bracket.

4. The center-driven sludge thickener according to claim 1, characterized in that: include: An overflow weir is provided on the inner periphery of the concentrating tank and is formed with an isolation ring groove; a drain pipe, one end of which is connected to the isolation ring groove; The water retaining plate is arranged outside the overflow weir.

5. The center-driven sludge thickener according to claim 1, characterized in that: include: A flow stabilizing cylinder is installed at the bottom of the support platform and sleeved outside the rotating cage; A plurality of counterweight blocks are mounted on the mud scraper bracket in a one-to-one correspondence.

6. The center-driven sludge thickener according to claim 4, characterized in that: include: skimming mechanisms, including A slag discharge hopper, opening upward and arranged inside the overflow weir; A slag discharge pipe, one end of which is connected to the bottom of the slag discharge hopper and the other end of which is passed out of the concentration tank; The skimming plate is arranged horizontally and is provided at the top ends of the plurality of bars in the same scraping mechanism, and the end thereof can be fitted with the outer side of the slag discharge bucket.

7. The center-driven sludge thickener according to claim 6, characterized in that: The skimming mechanism further comprises: a support frame, mounted on the end of the skimming plate; The slag scraper is installed at the bottom of the support frame and can pass over the slag discharge bucket.

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