Anti-accumulation sludge bunker

By installing vertically movable pressure scrapers and rubber scrapers inside the sludge silo, combined with high-pressure water jet cleaning, the problem of sludge accumulation is solved, enabling smooth sludge removal and convenient cleaning.

CN224546996UActive Publication Date: 2026-07-24JIANGSU YIXI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YIXI ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-09-26
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

When unloading sludge from existing sludge silos, sludge tends to accumulate at corners, making it difficult to flow out and increasing the difficulty and labor intensity of cleaning.

Method used

A reciprocating scraper is installed inside the silo, equipped with a rubber scraper and a ring-shaped water spray nozzle. Combined with high-pressure water flow cleaning, and with a rotating pipe and valve structure, it can effectively clean and remove sludge.

Benefits of technology

It effectively avoids sludge accumulation, improves cleaning effect, reduces cleaning labor intensity, ensures smooth sludge discharge, and meets the needs of sludge unloading from multiple directions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224546996U_ABST
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Abstract

The utility model relates to the technical field of sludge treatment, especially a sludge bunker of anti -accumulation, including bunker, the inside installation of bunker has the reciprocating motion of up and down of pressure scraper, the outside installation of pressure scraper has rubber scraper, it is pasted with the inner wall of bunker, the below installation of pressure scraper has ring pipe, the outside of ring pipe has opened the water jet, it is toward the inner wall of bunker, the utility model's advantage lies in: the inside installation of bunker has the reciprocating motion of up and down of pressure scraper, has opened the clamping groove at the edge of pressure scraper outside, its inside installation has rubber scraper, rubber scraper is pasted with the inner wall of bunker, through the up-and-down movement of pressure scraper, can by rubber scraper to the sludge that the bunker wall accumulated is cleaned, the below installation of pressure scraper has ring pipe, its outside has opened the water jet, fills in high pressure water in ring pipe, and the water flow can flush the inner wall of bunker, improve the cleaning effect to bunker, avoid the sludge accumulation.
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Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, and in particular to a sludge silo that prevents accumulation. Background Technology

[0002] With the increasing amount of sewage sludge in cities, it is sometimes necessary to collect the sludge during the sludge treatment process and then unload it when needed. Sludge is usually collected in silos. In order to provide the required amount of sludge, control the amount of sludge discharged, and facilitate subsequent processing, sewage treatment plants are generally equipped with sludge silos to temporarily store the sludge remaining after sewage treatment.

[0003] Existing sludge silos are generally steel silos, consisting of an upper and lower section connected vertically. The upper section is rectangular, while the lower section is a frustum-shaped structure with a larger diameter at the top and a smaller diameter at the bottom. The connection between the upper and lower sections on the left and right sides forms a corner, which is usually an obtuse angle, and a sludge discharge valve is installed at the bottom. In use, a transfer vehicle is placed under the sludge discharge valve, and the valve is opened, allowing sludge to be discharged from the bottom of the sludge silo into the transfer vehicle, which then transports the sludge away. However, due to the obtuse angle at the connection between the upper and lower sections of the sludge silo, and the relatively gentle slope, sludge accumulated at the connection point is difficult to drain during unloading. Sludge that accumulates at the corner of the sludge silo tends to settle and adhere to the inner wall of the silo, hindering subsequent unloading and increasing the labor intensity for workers cleaning the sludge silo. Therefore, this application proposes an anti-accumulation sludge silo to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sludge silo that prevents accumulation, effectively solving the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides an anti-accumulation sludge silo, comprising a silo, an internally mounted scraper capable of reciprocating up and down, an externally mounted rubber scraper that fits against the inner wall of the silo, a ring pipe below the scraper, a water spray nozzle on the external side of the ring pipe facing the inner wall of the silo, multiple hoppers above the external side of the silo, a fixed pipe at the center below the silo with multiple circumferentially arrayed slots on its outer surface, a first valve below the external side of the fixed pipe, a rotating pipe rotatably mounted outside the fixed pipe, and a second valve mounted outside the rotating pipe.

[0006] Preferably, in any of the above solutions, the inner wall of the hopper is equipped with a plurality of circumferentially arrayed prism plates, and the top surface of the scraper plate is provided with a plurality of limiting grooves, which slide in cooperation with the plurality of prism plates. A ring frame is installed at the top inside the hopper, and a motor is installed at the center of the top surface of the ring frame. A threaded rod is installed at the output end of the motor, and the threaded rod passes through the scraper plate, and the two are threadedly engaged. By using this solution, the up-and-down reciprocating motion of the scraper plate can be realized.

[0007] Preferably, as described in any of the above embodiments, a base plate for sealing is installed below the fixed pipe, and the first valve is installed on the bottom surface of the base plate.

[0008] Preferably, of any of the above schemes, a flange is installed on one side of the outside of the rotating pipe, the second valve is installed outside the flange, and a support ring is rotatably installed below the outside of the fixed pipe, located below the rotating pipe. This scheme facilitates the installation of the second valve and allows for adjustment of its direction.

[0009] Preferably, in any of the above embodiments, a mounting groove is provided at the edge of the outer surface of the scraper, and the rubber scraper is installed inside the mounting groove.

[0010] Preferably, one of the above solutions is that a connecting pipe is installed on one side above the ring pipe, which passes through the pressure scraper, and a third valve is installed on the outside of the connecting pipe. By using this solution, high-pressure water can be injected into the ring pipe through the third valve.

[0011] This utility model has the following advantages: 1. This anti-accumulation sludge silo has a reciprocating scraper installed inside. A mounting groove is provided on the outer edge of the scraper, and a rubber scraper is installed inside. The rubber scraper fits against the inner wall of the silo. The up-and-down movement of the scraper cleans the sludge accumulated on the silo wall. A ring pipe is installed below the scraper, with a water spray nozzle on its exterior. High-pressure water is injected into the ring pipe, and the water flow washes the inner wall of the silo, improving the cleaning effect and preventing sludge accumulation.

[0012] 2. This anti-accumulation sludge silo has a fixed pipe installed at the center of the bottom of the silo. The pipe has multiple circumferentially arrayed slots on its exterior. A rotating pipe is rotatably installed outside the fixed pipe, and a flange pipe is installed outside the rotating pipe. A first valve is installed below the fixed pipe, and a second valve is installed outside the flange pipe. This allows for the discharge of some sludge or cleaning water from the first valve. Adjusting the direction of the rotating pipe facilitates the discharge of sludge from different directions. Furthermore, multiple hoppers are installed above the exterior of the silo, allowing for the filling of sludge into the silo from multiple locations to meet usage requirements. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a first-view structural diagram of the present invention; Figure 3 This is a schematic diagram of the second-view structure of the present invention; Figure 4 This is a first-view structural diagram of the silo in this utility model; Figure 5 This is a schematic diagram of the internal structure of the silo in this utility model; Figure 6 This is a schematic diagram of the internal structure of the medium-pressure scraper of this utility model; Figure 7 This is a schematic diagram of the internal structure of the central ring tube in this utility model; Figure 8 This is a schematic diagram of the rotating tube in this utility model.

[0014] In the diagram: 1-hopper, 2-scraper blade, 3-ring frame, 4-motor, 5-third valve, 6-second valve, 7-base plate, 8-first valve, 9-support ring, 10-rotating pipe, 11-rubber scraper, 12-ring pipe, 13-hopper, 14-rib plate, 15-fixed pipe, 16-groove, 17-limiting groove, 18-clamping groove, 19-spray nozzle, 20-connecting pipe, 21-threaded rod, 22-flange pipe. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0016] like Figures 1 to 8 As shown, a sludge silo designed to prevent accumulation includes a silo 1. Inside the silo 1 is a reciprocating scraper 2. A rubber scraper 11 is installed on the outside of the scraper 2, which fits against the inner wall of the silo 1. A ring pipe 12 is installed below the scraper 2. A water spray nozzle 19 is opened on the outside of the ring pipe 12, facing the inner wall of the silo 1. Multiple hoppers 13 are installed above the outside of the silo 1. A fixed pipe 15 is installed at the center below the silo 1. Multiple circumferentially arrayed slots 16 are opened on its outer surface. A first valve 8 is installed below the outside of the fixed pipe 15. A rotating pipe 10 is rotatably installed on the outside of the fixed pipe 15. A second valve 6 is installed on the outside of the rotating pipe 10.

[0017] The inner wall of the hopper 1 is equipped with multiple circumferentially arrayed prismatic plates 14. The top surface of the scraper 2 is provided with multiple limiting grooves 17, which slide in cooperation with the multiple prismatic plates 14. A ring frame 3 is installed at the top of the hopper 1. A motor 4 is installed in the middle of the top surface of the ring frame 3. A threaded rod 21 is installed at the output end of the motor 4. The threaded rod 21 passes through the scraper 2 and the two are threadedly engaged. As an optional technical solution of this utility model, after the prismatic plates 14 cooperate with the limiting grooves 17, they play a limiting role in the up and down movement of the scraper 2, preventing it from shaking and making its up and down movement smooth. Moreover, the thickness of the prismatic plates 14 can be relatively thin, reducing the space occupied.

[0018] A base plate 7 for sealing is installed below the fixed pipe 15, and a first valve 8 is installed on the bottom surface of the base plate 7.

[0019] A flange 22 is installed on one side of the outside of the rotating pipe 10. The second valve 6 is installed on the outside of the flange 22. A support ring 9 is rotatably installed on the lower part of the outside of the fixed pipe 15. It is located below the rotating pipe 10. As an optional technical solution of this utility model, the rotating pipe 10 can be supported by the support ring 9, which facilitates its installation and disassembly. In order to improve the sealing between the rotating pipe 10 and the fixed pipe 15, a sealing component can be added to the inner wall of the rotating pipe 10.

[0020] A mounting groove 18 is provided at the edge of the outer surface of the scraper 2. The rubber scraper 11 is installed inside the mounting groove 18. As an optional technical solution of this utility model, the mounting groove 18 can be T-shaped to facilitate the installation and removal of the rubber scraper 11. The material of the rubber scraper 11 can be rubber or latex to avoid scratching the wall of the hopper 1.

[0021] A connecting pipe 20 is installed on one side above the ring pipe 12, which passes through the pressure scraper 2, and a third valve 5 is installed on the outside of the connecting pipe 20.

[0022] The features, assembly method, usage process, and functions of each component in this utility model are as follows: A reciprocating scraper 2 is installed inside the hopper 1. A mounting groove 18 is provided on the outer edge of the scraper 2, and a rubber scraper 11 is installed inside it. The rubber scraper 11 fits against the inner wall of the hopper 1. Through the up-and-down movement of the scraper 2, the rubber scraper 11 can clean the sludge accumulated on the wall of the hopper 1. A ring pipe 12 is installed below the scraper 2, and a water spray nozzle 19 is provided on its outer side. High-pressure water is injected into the ring pipe 12, and the water flow can wash the inner wall of the hopper 1, improving the cleaning effect on the hopper 1. To improve cleaning effectiveness and prevent sludge accumulation, a fixed pipe 15 is installed in the middle of the lower part of the silo 1. Multiple circularly arranged slots 16 are opened on the outside of the fixed pipe 15. A rotating pipe 10 is rotatably installed outside the fixed pipe 15, and a flange pipe 22 is installed on its outside. A first valve 8 is installed below the fixed pipe 15, and a second valve 6 is installed outside the flange pipe 22, facilitating the discharge of some sludge or cleaning water from the first valve 8. Adjusting the direction of the rotating pipe 10 allows for sludge discharge from different directions. Furthermore, multiple hoppers 13 are installed above the outside of the silo 1, facilitating the filling of sludge into the silo 1 from multiple locations to meet usage needs.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sludge silo designed to prevent accumulation, characterized in that: The hopper includes a hopper (1), inside which a scraper (2) capable of reciprocating up and down is installed. A rubber scraper (11) is installed on the outside of the scraper (2), which is in contact with the inner wall of the hopper (1). A ring pipe (12) is installed below the scraper (2), and a water spray nozzle (19) is opened on the outside of the ring pipe (12), which faces the inner wall of the hopper (1). Multiple hoppers (13) are installed above the outside of the hopper (1). A fixed pipe (15) is installed at the center below the hopper (1), and multiple circumferentially arrayed slots (16) are opened on its outer surface. A first valve (8) is installed below the outside of the fixed pipe (15). A rotating pipe (10) is rotatably installed on the outside of the fixed pipe (15), and a second valve (6) is installed on the outside of the rotating pipe (10).

2. The sludge silo for preventing accumulation according to claim 1, characterized in that: The inner wall of the hopper (1) is equipped with multiple circumferentially arrayed prism plates (14). The top surface of the scraper plate (2) is provided with multiple limiting grooves (17), which slide in cooperation with the multiple prism plates (14). A ring frame (3) is installed above the inside of the hopper (1). A motor (4) is installed in the middle of the top surface of the ring frame (3). A threaded rod (21) is installed at its output end. The threaded rod (21) passes through the scraper plate (2) and the two are threadedly engaged.

3. The sludge silo for preventing accumulation according to claim 2, characterized in that: A base plate (7) for sealing is installed below the fixed pipe (15), and the first valve (8) is installed on the bottom surface of the base plate (7).

4. The sludge silo for preventing accumulation according to claim 3, characterized in that: A flange (22) is installed on one side of the outside of the rotating pipe (10), and the second valve (6) is installed on the outside of the flange (22). A support ring (9) is rotatably installed below the outside of the fixed pipe (15), which is located below the rotating pipe (10).

5. A sludge silo for preventing accumulation according to claim 4, characterized in that: The outer surface of the scraper (2) is provided with a mounting groove (18), and the rubber scraper (11) is installed inside the mounting groove (18).

6. A sludge silo for preventing accumulation according to claim 5, characterized in that: A connecting pipe (20) is installed on one side above the ring pipe (12), which passes through the pressure scraper (2), and a third valve (5) is installed on the outside of the connecting pipe (20).