Splayed mud blocking device for desliming machine

By designing an eight-shaped mud-blocking device, the problem of sludge spillage in the belt desludge dewatering machine was solved, achieving centralized sludge falling and effective dewatering.

CN223837270UActive Publication Date: 2026-01-27CHONGQING YUXI WATER CO LTD
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Patent Information

Application Number
CN202520337874.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-01-27
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

In belt desliming machines, when sludge enters the wedge-shaped pre-compression desliming zone from the gravity dewatering zone, there is a lack of effective sludge-blocking structure, which causes sludge to easily fall from both sides of the filter belt, affecting the dewatering effect.

Method used

Design an eight-shaped sludge-blocking device, including components such as a fixed frame, a guide frame, an electric roller, a filter belt, a fixed baffle, and rubber scrapers. Through the synergistic effect of these components, ensure that the sludge falls centrally into the filter belt under the action of gravity, and avoid spillage.

Benefits of technology

This effectively prevents sludge from spilling from both sides of the filter belt during transport, ensuring that the sludge falls in a concentrated manner into the wedge-shaped pre-compression dewatering zone, thus improving the dewatering effect.

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Abstract

The splayed mud blocking device for the desliming machine comprises a fixing frame, the left end of the top of the fixing frame is fixedly connected with a material guiding frame, the left end of the material guiding frame is fixedly connected with a feeding pipe, an electric roller is fixedly installed at the left end of an inner cavity of the fixing frame, and the surface of the electric roller is in transmission connection with a filter belt. The surface of the filter belt is movably connected to an inner cavity of a fixing frame, a discharging opening is formed in the middle end of the right side of the fixing frame, and fixing baffles are fixedly connected to the two ends of the right side of the inner cavity of the fixing frame. Through the arrangement of the feeding pipe, the sludge conveying device can be in butt joint installation with a sludge pipeline, so that sludge can flow down to the surface of the filter belt through the feeding pipe and the material guide frame, meanwhile, the sludge at the top of the filter belt can be driven to be gradually conveyed to the right side in the running process of the electric roller, and the sludge is conveyed to the right side under the action of gravity. And water in the sludge can flow down after being filtered by the filter belt.
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Description

Technical Field

[0001] This utility model relates to the field of desliming machine technology, specifically to a figure-eight mud-blocking device for a desliming machine. Background Technology

[0002] Belt dewatering machines are devices used for sludge dewatering. They are widely used in small and medium-sized urban sewage treatment plants, industrial wastewater treatment, and other fields. They are mainly used to separate and dewater water-containing sludge. Belt dewatering machines use two continuously running filter belts to sandwich flocculated sludge in the middle, which is then pressurized by rollers of various types to achieve dewatering. Belt dewatering machines can be divided into multiple zones according to the dewatering process, such as gravity dewatering zone, wedge pre-compression dewatering zone, cyclone dewatering zone, and shear dewatering zone. These zones work together to complete the sludge dewatering process.

[0003] Currently, during the dewatering of sludge using belt dewatering machines, the lack of an effective sludge-blocking structure between the filter belt in the gravity dewatering zone and the filter belt in the wedge pre-compression dewatering zone causes the sludge to easily spill from both sides of the filter belt in the wedge pre-compression dewatering zone as it moves from the gravity dewatering zone into the wedge pre-compression dewatering zone. This adversely affects the sludge dewatering operation and fails to meet the needs of users. Utility Model Content

[0004] The purpose of this utility model is to provide an eight-shaped mud-blocking device for a sludge dewatering machine, which has the advantage of allowing the sludge to fall centrally into the filter belt behind it during the process of sludge being transported from the gravity dewatering zone to the wedge-shaped pre-compression dewatering zone, thus preventing the sludge from spilling from both sides.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an eight-shaped mud-blocking device for a desliming machine, comprising a fixed frame, a guide frame fixedly connected to the top left end of the fixed frame, a feed pipe fixedly connected to the left end of the guide frame, an electric drum fixedly installed at the left end of the inner cavity of the fixed frame, a filter belt connected to the surface of the electric drum, the filter belt movably connected to the inner cavity of the fixed frame, a discharge port opened at the middle of the right side of the fixed frame, fixed baffles fixedly connected to both ends of the right side of the inner cavity of the fixed frame, a fixed horizontal plate fixedly connected to the lower ends of the two fixed baffles on the side away from each other, a supporting horizontal bar movably connected to the lower ends of the two fixed baffles on the side closer to each other, a rubber scraper fixedly installed at the lower end of the supporting horizontal bar, the bottom of the rubber scraper movably connected to the right end of the top of the filter belt, movable frames fixedly connected to both ends of the top of the supporting horizontal bar, a fixed plate fixedly connected between the surfaces of the two movable frames, and a supporting spring fixedly connected between the bottom ends of the fixed plate and the top ends of the fixed horizontal plate.

[0006] As a preferred embodiment, a guide block is fixedly connected to the right end of the guide frame, the number of guide blocks is five, and the distance between two adjacent guide blocks is equal. A support frame is fixedly connected between the left ends of both sides of the outer surface of the guide frame and the two ends of the left side of the outer surface of the fixed frame.

[0007] As a preferred embodiment, a fixed crossbar is fixedly connected to the upper end of the inner cavity of the fixed frame, and a fabric blade is fixedly connected to the bottom of the fixed crossbar.

[0008] As a preferred embodiment, the right end of the inner cavity of the fixed frame is movably connected to a supporting rotating cylinder via a bearing, and the surface of the filter belt is drivenly connected to the surface of the supporting rotating cylinder.

[0009] As a preferred embodiment, both ends of the two fixed baffles that are close to each other are fixedly connected to stabilizing blocks, and the upper end of the movable frame is movably connected to the surface of the stabilizing blocks.

[0010] As a preferred embodiment, hooks are fixedly connected to the upper ends of the two fixed baffles on opposite sides, and rope loops are fixedly connected to the middle ends of the top of the fixed baffles.

[0011] As a preferred embodiment, support columns are fixedly connected to all four sides of the bottom of the outer surface of the fixed frame, a support base plate is fixedly connected between the bottoms of two support columns, a drain pipe is fixedly connected to the middle of the bottom of the fixed frame, a scraper is fixedly connected to the lower right side of the outer surface of the fixed frame, and the upper left side of the scraper is movably connected to the right side of the filter belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the setting of the feed pipe, can be connected and installed with the sludge pipeline, allowing the sludge to flow through the feed pipe and guide frame onto the surface of the filter belt. Simultaneously, during the operation of the electric drum, the sludge at the top of the filter belt is gradually conveyed to the right. Under the action of gravity, the water in the sludge is filtered by the filter belt and flows downwards. Furthermore, through the setting of fixed baffles, fixed cross plates, support springs, fixed plates, movable frames, support cross bars, and rubber scrapers, the support springs, under pre-tension, can apply pressure to the fixed plates, movable frames, support cross bars, and rubber scrapers. This ensures that the rubber scrapers maintain contact with the filter belt during use, and under the action of the rubber scrapers, an effective sludge-blocking effect is formed on both sides of the right end of the filter belt. This allows the sludge adhering to the filter belt surface to concentrate in the central area, ensuring that the sludge falls centrally into the subsequent wedge-shaped pre-compression dewatering zone during the conveying process, preventing sludge from falling from both sides and affecting the desludge removal effect.

[0014] 2. This utility model, through the setting of the guide block, can guide and divert the sludge as it flows to the right through the guide frame, preventing the sludge from concentrating and accumulating in the middle area of ​​the filter belt. The setting of the support frame can strengthen the support of the left end of the guide frame, preventing the guide frame from deforming due to force. The setting of the fixed crossbar and the cloth blade can scrape the sludge conveyed at the top of the filter belt, further preventing the sludge from accumulating in a thick layer in a local area of ​​the filter belt, which would affect the dewatering effect.

[0015] 3. This utility model achieves the purpose of supporting the right end of the filter belt by setting up a supporting rotating drum. The purpose of supporting and guiding the movable frame is achieved by setting up a stabilizing block, so as to prevent the movable frame from tilting during movement. By setting up hooks and rope loops, when personnel disassemble and replace the rubber scraper strips, the rope loops can be suspended on the surface of the hooks during the process of personnel pulling the fixed plate upward to separate the rubber scraper strips from the filter belt, thereby avoiding the need for personnel to continuously pull the fixed plate during the replacement of the rubber scraper strips. By setting up support columns and support base plates, the bottom of the fixed frame is supported. By setting up scraper plates, the sludge attached to the surface of the filter belt can be scraped off during the process of sludge being transported from the gravity dewatering zone to the wedge-shaped pre-compression dewatering zone. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a front sectional view of the fixed frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixed baffle structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixed baffle of this utility model from another perspective.

[0020] In the diagram: 1. Fixed frame; 2. Support base plate; 3. Support column; 4. Scraper; 5. Support frame; 6. Feed pipe; 7. Guide frame; 8. Guide block; 9. Filter belt; 10. Electric roller; 11. Support drum; 12. Fixed crossbar; 13. Fabric blade; 14. Fixed baffle; 15. Rubber scraper; 16. Discharge port; 17. Stabilizing block; 18. Movable frame; 19. Support crossbar; 20. Hook; 21. Rope ring; 22. Support spring; 23. Fixed crossbar; 24. Fixed plate. Detailed Implementation

[0021] 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.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Example 1:

[0024] Please see Figures 1-4 As shown, this utility model provides a figure-eight mud-blocking device for a desliming machine, including a fixed frame 1. A guide frame 7 is fixedly connected to the top left end of the fixed frame 1, and a feed pipe 6 is fixedly connected to the left end of the guide frame 7. An electric drum 10 is fixedly installed on the left end of the inner cavity of the fixed frame 1. A filter belt 9 is drivenly connected to the surface of the electric drum 10, and the surface of the filter belt 9 is movably connected to the inner cavity of the fixed frame 1. A discharge port 16 is opened at the middle of the right side of the fixed frame 1. Fixed baffles 14 are fixedly connected to both ends of the right side of the inner cavity of the fixed frame 1. The two fixed baffles 14 are connected to each other. A fixed horizontal plate 23 is fixedly connected to the lower end of the two fixed baffles 14 on the side away from each other. A support horizontal bar 19 is movably connected to the lower end of the two fixed baffles 14 on the side close to each other. A rubber scraper 15 is fixedly installed at the lower end of the support horizontal bar 19. The bottom of the rubber scraper 15 is movably connected to the right end of the top of the filter belt 9. Movable frames 18 are fixedly connected to both ends of the top of the support horizontal bar 19. A fixed plate 24 is fixedly connected between the surfaces of the two movable frames 18. A support spring 22 is fixedly connected between the bottom ends of the fixed plate 24 and the top ends of the fixed horizontal plate 23.

[0025] In this technical solution, the feed pipe 6 can be connected to the sludge pipeline, allowing the sludge to flow through the feed pipe 6 and the guide frame 7 onto the surface of the filter belt 9. Simultaneously, during the operation of the electric roller 10, the sludge on the top of the filter belt 9 is gradually conveyed to the right, and under the influence of gravity, the water in the sludge is filtered by the filter belt 9 and flows downwards. Furthermore, the fixed baffle 14, fixed cross plate 23, support spring 22, fixed plate 24, movable frame 18, support cross bar 19, and rubber scraper 15, with the support spring 22 pre-loaded... Under the action of tension, pressure can be applied to the fixed plate 24, movable frame 18, support crossbar 19 and rubber scraper 15, so that the rubber scraper 15 can maintain contact with the filter belt 9 during use. Under the action of the rubber scraper 15, an effective mud-blocking effect can be formed on both sides of the right end of the filter belt 9, so that the sludge attached to the surface of the filter belt 9 can be concentrated in the middle area. This ensures that the sludge can pass through the discharge port 16 during the conveying process and fall into the interior of the subsequent wedge-shaped pre-compression dewatering zone in the middle, avoiding the sludge falling from both sides and affecting the desludge removal effect.

[0026] Example 2:

[0027] Based on Embodiment 1, this utility model is as follows: Figure 1 and Figure 2 As shown, a guide block 8 is fixedly connected to the right end of the guide frame 7. There are five guide blocks 8, and the distance between two adjacent guide blocks 8 is equal. Support frames 5 are fixedly connected between the left ends of both sides of the outer surface of the guide frame 7 and the two ends of the left side of the outer surface of the fixed frame 1. A fixed crossbar 12 is fixedly connected to the upper end of the inner cavity of the fixed frame 1, and a fabric blade 13 is fixedly connected to the bottom of the fixed crossbar 12.

[0028] In this technical solution, the guide block 8 can guide and divert the sludge as it flows to the right through the guide frame 7, preventing the sludge from accumulating in the middle area of ​​the filter belt 9. The support frame 5 strengthens the left end of the guide frame 7, preventing it from deforming due to stress. The fixed crossbar 12 and the cloth blade 13 can scrape the sludge conveyed at the top of the filter belt 9, further preventing the sludge from accumulating thickly in local areas of the filter belt 9 and affecting the dewatering effect.

[0029] Example 3:

[0030] Based on Embodiment 1, this utility model is as follows: Figures 1-4As shown, the right end of the inner cavity of the fixed frame 1 is movably connected to the support drum 11 via a bearing. The surface of the filter belt 9 is connected to the surface of the support drum 11. Stabilizing blocks 17 are fixedly connected to both ends of the two fixed baffles 14 on the side closer to each other. The upper end of the movable frame 18 is movably connected to the surface of the stabilizing block 17. Hooks 20 are fixedly connected to the upper ends of the two fixed baffles 14 on the side farther from each other. Rope rings 21 are fixedly connected to the middle of the top of the fixed plate 24. Support columns 3 are fixedly connected to all four sides of the bottom of the outer surface of the fixed frame 1. A support base plate 2 is fixedly connected between the bottoms of the two support columns 3. A drain pipe is fixedly connected to the middle of the bottom of the fixed frame 1. A scraper 4 is fixedly connected to the lower right end of the outer surface of the fixed frame 1. The upper left end of the scraper 4 is movably connected to the right side of the filter belt 9.

[0031] In this technical solution, the support drum 11 is used to support the right end of the filter belt 9. The stabilizing block 17 is used to support and guide the movable frame 18, preventing it from tilting during movement. The hook 20 and rope ring 21 are used so that when the rubber scraper 15 is disassembled and replaced, the rope ring 21 can be suspended on the surface of the hook 20 while the fixed plate 24 is pulled upward to separate the rubber scraper 15 from the filter belt 9. This avoids the need for the fixed plate 24 to be pulled continuously during the replacement of the rubber scraper 15. The support column 3 and the support base plate 2 are used to support the bottom of the fixed frame 1. The scraper plate 4 is used to scrape off the sludge attached to the surface of the filter belt 9 during the process of conveying the sludge from the gravity dewatering zone to the wedge pre-compression dewatering zone.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A figure-eight mud-blocking device for a desliming machine, comprising a fixing frame (1), characterized in that: A guide frame (7) is fixedly connected to the top left end of the fixed frame (1), and a feed pipe (6) is fixedly connected to the left end of the guide frame (7). An electric roller (10) is fixedly installed on the left end of the inner cavity of the fixed frame (1). A filter belt (9) is connected to the surface of the electric roller (10). The surface of the filter belt (9) is movably connected to the inner cavity of the fixed frame (1). A discharge port (16) is opened at the middle of the right side of the fixed frame (1). Fixed baffles (14) are fixedly connected to both ends of the right side of the inner cavity of the fixed frame (1). The lower ends of the two fixed baffles (14) on opposite sides are fixedly connected to each other. There is a fixed horizontal plate (23), and the lower ends of the two fixed baffles (14) close to each other are movably connected to a support horizontal bar (19). The lower end of the support horizontal bar (19) is fixedly installed with a rubber scraper (15). The bottom of the rubber scraper (15) is movably connected to the right end of the top of the filter belt (9). Both ends of the top of the support horizontal bar (19) are fixedly connected to movable frames (18). A fixed plate (24) is fixedly connected between the surfaces of the two movable frames (18). Support springs (22) are fixedly connected between the bottom ends of the fixed plate (24) and the top ends of the fixed horizontal plate (23).

2. The figure-eight mud-blocking device for a desliming machine according to claim 1, characterized in that: The right end of the guide frame (7) is fixedly connected to a guide block (8). There are five guide blocks (8), and the distance between two adjacent guide blocks (8) is equal. Support frames (5) are fixedly connected between the left ends of both sides of the outer surface of the guide frame (7) and the two ends of the left side of the outer surface of the fixed frame (1).

3. The figure-eight mud-blocking device for a desliming machine according to claim 1, characterized in that: A fixed crossbar (12) is fixedly connected to the upper end of the inner cavity of the fixed frame (1), and a fabric blade (13) is fixedly connected to the bottom of the fixed crossbar (12).

4. The figure-eight mud-blocking device for a desliming machine according to claim 1, characterized in that: The right end of the inner cavity of the fixed frame (1) is movably connected to the support rotating cylinder (11) via a bearing, and the surface of the filter belt (9) is connected to the surface of the support rotating cylinder (11).

5. The figure-eight mud-blocking device for a desliming machine according to claim 1, characterized in that: The two fixed baffles (14) are fixedly connected to stabilizing blocks (17) at both ends of one side of each other, and the upper end of the movable frame (18) is movably connected to the surface of the stabilizing block (17).

6. The figure-eight mud-blocking device for a desliming machine according to claim 1, characterized in that: The two fixed baffles (14) are fixedly connected to hooks (20) on the upper ends of the two baffles (14) on opposite sides, and the fixed baffles (24) are fixedly connected to rope loops (21) at the middle of the top.

7. The figure-eight mud-blocking device for a desliming machine according to claim 1, characterized in that: Support columns (3) are fixedly connected to the bottom of the outer surface of the fixed frame (1) on all four sides. A support base plate (2) is fixedly connected between the bottoms of the two support columns (3). A drain pipe is fixedly connected to the middle of the bottom of the fixed frame (1). A scraper (4) is fixedly connected to the lower right side of the outer surface of the fixed frame (1). The upper left side of the scraper (4) is movably connected to the right side of the filter belt (9).