Solid-liquid separation device for urban sewage treatment

By combining a drive motor and a nozzle system, the problem of poor separation of sludge at the bottom of sewage by existing devices has been solved, achieving efficient cleaning and separation of sludge at the bottom of sewage channels and improving solid-liquid separation efficiency.

CN224071390UActive Publication Date: 2026-04-03YANGLING HUAYU WATER PURIFICATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing solid-liquid separation devices can only effectively separate floating debris on the surface of sewage in wastewater treatment, and are ineffective at separating debris at the bottom, resulting in the accumulation of debris at the bottom of sewage channels that is difficult to clean.

Method used

The system uses a separation conveyor belt and a sewage conveyor belt driven by a drive motor, along with a nozzle system. The sewage is pressurized and sprayed by a water pump, causing it to churn. This causes denser solids to float to the surface and be collected by the conveyor belt. Guide baffles are used to guide the flow of sewage, achieving effective separation of the bottom debris.

Benefits of technology

It achieves efficient separation and cleaning of sludge at the bottom of sewage channels, prevents sludge accumulation, reduces the difficulty of equipment maintenance, and improves solid-liquid separation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of solid-liquid separation devices, in particular to a solid-liquid separation device for urban sewage treatment, which comprises a sewage channel, a separation conveyor belt, a sewage discharge conveyor belt, a water pump, a first spray head, a guide baffle plate, a second spray head, a first driving motor and a second driving motor, a water pump is arranged on one side of the sewage channel, a separation conveying belt is arranged on the inner side of the sewage channel and inclines by a certain angle, the separation end of the separation conveying belt is immersed in sewage in the sewage channel, a first driving motor is arranged on one side of the separation conveying belt, and a guide baffle is arranged at the separation end of the separation conveying belt. A pollution discharge conveying belt is arranged on the pollution discharge side of the separation conveying belt, a second driving motor is arranged on one side of the pollution discharge conveying belt, a second nozzle is arranged at the bottom of the sewage channel, and a second nozzle is arranged on the inner side of the pollution discharge end of the separation conveying belt; dirt sinking to the bottom can be driven by the first spray head to turn over along with water flow, and the dirt is prevented from being accumulated at the bottom of the sewage channel.
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Description

Technical Field

[0001] This utility model relates to the technical field of solid-liquid separation devices, and in particular to a solid-liquid separation device for urban sewage treatment. Background Technology

[0002] In urban wastewater treatment, solid-liquid separation is a key step that can effectively separate solid particles and liquids in wastewater for subsequent treatment and reuse.

[0003] Most existing solid-liquid separation devices can only remove floating debris from the surface of sewage, and are less effective at separating debris from the bottom of the sewage. Over time, debris will accumulate at the bottom of the sewage channel and is difficult to clean.

[0004] Therefore, to address the above problems, a solid-liquid separation device for urban sewage treatment can be designed. The device uses nozzles to agitate the sediment at the bottom with the water flow, allowing it to collect and separate the sediment, thus preventing it from accumulating at the bottom of the sewage channel. Utility Model Content

[0005] To overcome the problem that most solid-liquid separation devices can only remove floating debris from the surface of sewage, and have a poor separation effect on debris at the bottom of the sewage, resulting in the accumulation of debris at the bottom of the sewage channel during long-term use, which is difficult to clean.

[0006] The technical solution of this utility model is as follows: a solid-liquid separation device for urban sewage treatment, comprising a sewage channel, a separation conveyor belt, a sewage discharge conveyor belt, a water pump, a first nozzle, a guide baffle, a second nozzle, a first drive motor, and a second drive motor; a water pump is provided on one side of the sewage channel, a separation conveyor belt is provided on the inner side of the sewage channel, the separation conveyor belt is inclined at a certain angle, the separation end of the separation conveyor belt is immersed in the sewage in the sewage channel, a first drive motor is provided on one side of the separation conveyor belt, a guide baffle is provided on the separation end of the separation conveyor belt, a sewage discharge conveyor belt is provided on the sewage discharge side of the separation conveyor belt, a second drive motor is provided on one side of the sewage discharge conveyor belt, a second nozzle is provided at the bottom of the sewage channel, and a second nozzle is provided on the inner side of the sewage discharge end of the separation conveyor belt.

[0007] Preferably, a first drive motor drives a separation conveyor belt to scoop up solid waste from the sewage in the sewage channel for solid-liquid separation. A water pump pumps the separated sewage to prevent waste from entering the pump and causing damage. Water is pressurized and sprayed upwards from a first nozzle, causing the sewage in the sewage channel to churn up and down, carrying denser solid waste with it. This allows the separation conveyor belt to scoop up and separate waste that would otherwise be difficult to scoop up. A guide baffle guides the sewage. A second drive motor drives a discharge conveyor belt to transport the waste scooped up and transported by the separation conveyor belt out of the sewage channel and collect it. The water pump also pressurizes water and sends it into a second nozzle, spraying it from inside the separation conveyor belt to the outside, washing away the waste attached to the separation conveyor belt and preventing it from entering the sewage channel after solid-liquid separation.

[0008] Preferably, a first base is provided on both sides of the separating conveyor belt, and a second base is provided at the bottom of the sewage discharge conveyor belt. The width of the first base and the second base is greater than the width of the sewage ditch.

[0009] Preferably, a water intake pipe is provided on one side of the water pump, with one end of the water intake pipe located behind the separating conveyor belt. A first water supply pipe is provided on one side of the water pump, and a second water supply pipe is provided on one side of the first water supply pipe. The first water supply pipe and the second water supply pipe are connected and interconnected.

[0010] Preferably, the bottom of the first nozzle is provided with a first connecting seat, which is connected to the first water supply pipe.

[0011] Preferably, the guide baffle is provided with water-permeable holes, and a fixing plate is provided at the connection between the guide baffle and the separating conveyor belt.

[0012] Preferably, the separating conveyor belt has a first water-permeable groove, and a separating hook is provided on the outside of the separating conveyor belt, with a second water-permeable groove provided on the separating hook.

[0013] Preferably, a conveyor roller is provided on the inner side of the separating conveyor belt, and a transmission block is provided on the outer side of the conveyor roller. The transmission block is fitted into the first permeable trough. A second connecting seat is provided on one side of the second nozzle, and the second connecting seat is connected to the second water supply pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1. A first drive motor drives a separation conveyor belt to scoop up solid waste from the sewage in the sewage channel, achieving solid-liquid separation. A water pump pumps the separated sewage to prevent waste from entering the pump and causing damage. Water is pressurized and sprayed upwards from the first nozzle, causing the sewage in the sewage channel to churn up and down, carrying denser solid waste with it. This allows the separation conveyor belt to scoop up and separate waste that was previously inaccessible. A guide baffle guides the sewage. A second drive motor drives a discharge conveyor belt to transport the waste scooped and transported by the separation conveyor belt out of the sewage channel for collection. The water pump also pressurizes water and sends it into the second nozzle, spraying it from inside the separation conveyor belt to the outside, flushing away the waste attached to the separation conveyor belt and preventing it from entering the sewage channel after solid-liquid separation. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a solid-liquid separation device for urban sewage treatment according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the first nozzle of a solid-liquid separation device for urban sewage treatment according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of a guide baffle for a solid-liquid separation device for urban wastewater treatment according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the second nozzle of a solid-liquid separation device for urban sewage treatment according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Sewage channel; 2. Separation conveyor belt; 3. Sewage discharge conveyor belt; 4. Water pump; 5. First nozzle; 6. Guide baffle; 7. Second nozzle; 8. First drive motor; 9. Second drive motor; 201. First permeable trough; 202. Separation hook; 203. Second permeable trough; 204. First base; 205. Conveyor roller; 206. Transmission block; 301. Second base; 401. Water intake pipe; 402. First water supply pipe; 403. Second water supply pipe; 501. First connecting seat; 601. Permeable hole; 602. Fixing plate; 701. Second connecting seat. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4This utility model provides an embodiment: a solid-liquid separation device for urban sewage treatment, including a sewage channel 1, a separation conveyor belt 2, a sewage discharge conveyor belt 3, a water pump 4, a first nozzle 5, a guide baffle 6, a second nozzle 7, a first drive motor 8, and a second drive motor 9; a water pump 4 is provided on one side of the sewage channel 1, and a separation conveyor belt 2 is provided on the inner side of the sewage channel 1. The separation conveyor belt 2 is inclined at a certain angle, and the separation end of the separation conveyor belt 2 is immersed in the sewage in the sewage channel 1. A first drive motor 8 is provided on one side of the separation conveyor belt 2, a guide baffle 6 is provided on the separation end of the separation conveyor belt 2, a sewage discharge conveyor belt 3 is provided on the sewage discharge side of the separation conveyor belt 2, a second drive motor 9 is provided on one side of the sewage discharge conveyor belt 3, a second nozzle 7 is provided at the bottom of the sewage channel 1, and a second nozzle 7 is provided on the inner side of the sewage discharge end of the separation conveyor belt 2.

[0023] Please see Figure 1 In this embodiment, a first base 204 is provided on both sides of the separating conveyor belt 2, and a second base 301 is provided at the bottom of the sewage conveyor belt 3. The width of the first base 204 and the second base 301 is greater than the width of the sewage ditch 1. The first base 204 is used to support the installation of the separating conveyor belt 2, and the second base 301 is used to support the installation of the sewage conveyor belt 3.

[0024] Please see Figure 2 In this embodiment, a water intake pipe 401 is provided on one side of the water pump 4, with one end of the water intake pipe 401 located behind the separation conveyor belt 2. A first water supply pipe 402 is provided on one side of the water pump 4, and a second water supply pipe 403 is provided on one side of the first water supply pipe 402. The first water supply pipe 402 and the second water supply pipe 403 are connected and interconnected. A first connecting seat 501 is provided at the bottom of the first nozzle 5, and the first connecting seat 501 is connected and interconnected with the first water supply pipe 402. The water pump 4 draws the sewage after solid-liquid separation through the water intake pipe 401 and pressurizes it to send water from the first water supply pipe 402 into the first nozzle 5 and from the second water supply pipe 403 into the second nozzle 7. The first connecting seat 501 is used to connect and interconnect multiple sets of first nozzles 5.

[0025] Please see Figure 3 In this embodiment, the guide baffle 6 has a water-permeable hole 601, and a fixing plate 602 is provided at the connection between the guide baffle 6 and the separation conveyor belt 2. The separation conveyor belt 2 has a first water-permeable groove 201, and a separation hook 202 is provided on the outside of the separation conveyor belt 2. The separation hook 202 has a second water-permeable groove 203. The water-permeable hole 601 allows water to pass through the guide baffle 6, the fixing plate 602 is used to install and fix the guide baffle 6, the separation hook 202 increases the ability of the separation conveyor belt 2 to carry solid waste, and the first water-permeable groove 201 and the separation hook 202 allow sewage to pass through the separation conveyor belt 2.

[0026] Please see Figure 4In this embodiment, a conveyor roller 205 is provided on the inner side of the separating conveyor belt 2, and a transmission block 206 is provided on the outer side of the conveyor roller 205. The transmission block 206 is fitted into the first permeable trough 201. A second connecting seat 701 is provided on one side of the second nozzle 7. The second connecting seat 701 is connected to the second water supply pipe 403. The conveyor roller 205 can receive power from the first drive motor 8 and use the cooperation between the transmission block 206 and the first permeable trough 201 to drive the separating conveyor belt 2 to move and transport the dredged dirt. The second connecting seat 701 connects multiple sets of second nozzles 7.

[0027] When the device is in use, the first drive motor 8 drives the separation conveyor belt 2 to operate, which in turn drives the separation hook 202 to retrieve solid waste from the sewage in the sewage channel 1. The retrieved waste is transported along with the separation conveyor belt 2. When the waste is transported above the sewage discharge conveyor belt 3, it falls into the sewage discharge conveyor belt 3 under the action of gravity and continues to be transported for collection and treatment. During this process, the water pump 4 draws the sewage after solid-liquid separation through the water intake pipe 401 and pressurizes the water to send it from the first water supply pipe 402 to the first nozzle 5 and from the second water supply pipe 403 to the second nozzle 7. The water is sprayed out at high speed from the first nozzle 5, causing the sewage in the sewage channel 1 to churn up and down, and causing the denser solid waste to churn with the sewage. This allows the separation conveyor belt 2 to retrieve and separate waste that was originally not retrieved. The water is sprayed out at high pressure from the second nozzle 7 to wash the separation conveyor belt 2 and the separation hook 202, washing off the attached waste and sending it into the sewage discharge conveyor belt 3.

[0028] Through the above steps, the first drive motor 8 drives the separation conveyor belt 2 to scoop up solid waste in the sewage in the sewage channel 1 for solid-liquid separation. The water pump 4 pumps the separated sewage to prevent the waste from entering the water pump 4 and causing damage. Water is pressurized and sprayed upward from the first nozzle 5, causing the sewage in the sewage channel 1 to churn up and down, and causing the denser solid waste to churn with the sewage. This allows the separation conveyor belt 2 to scoop up and separate the waste that was originally not scooped up. The guide baffle 6 guides the sewage. The second drive motor 9 drives the sewage discharge conveyor belt 3 to operate, transporting the waste scooped up and transported by the separation conveyor belt 2 out of the sewage channel 1 and collecting it. The water pump 4 also pressurizes water and sends it into the second nozzle 7, spraying it from inside the separation conveyor belt 2 to the outside of the separation conveyor belt 2, washing away the waste attached to the separation conveyor belt 2 and preventing the waste from entering the sewage channel 1 after solid-liquid separation.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A solid-liquid separation device for urban sewage treatment, comprising a sewage channel (1); characterized in that: It also includes a separation conveyor belt (2), a sewage discharge conveyor belt (3), a water pump (4), a first nozzle (5), a guide baffle (6), a second nozzle (7), a first drive motor (8), and a second drive motor (9); a water pump (4) is provided on one side of the sewage channel (1), a separation conveyor belt (2) is provided on the inner side of the sewage channel (1), the separation conveyor belt (2) is set at a certain angle, the separation end of the separation conveyor belt (2) is immersed in the sewage in the sewage channel (1), a first drive motor (8) is provided on one side of the separation conveyor belt (2), a guide baffle (6) is provided on the separation end of the separation conveyor belt (2), the end of the separation conveyor belt (2) away from the separation end is set as the sewage discharge end, the sewage discharge end has a sewage discharge conveyor belt (3), a second drive motor (9) is provided on one side of the sewage discharge conveyor belt (3), a second nozzle (7) is provided at the bottom of the sewage channel (1), and a second nozzle (7) is provided on the inner side of the sewage discharge end of the separation conveyor belt (2).

2. The solid-liquid separation device for urban sewage treatment according to claim 1, characterized in that: The separation conveyor belt (2) is provided with a first base (204) on both sides, and the sewage conveyor belt (3) is provided with a second base (301) at the bottom. The width of the first base (204) and the second base (301) is greater than the width of the sewage ditch (1).

3. The solid-liquid separation device for urban sewage treatment according to claim 1, characterized in that: A water intake pipe (401) is provided on one side of the water pump (4). One end of the water intake pipe (401) is located behind the separation conveyor belt (2). A first water supply pipe (402) is provided on one side of the water pump (4). A second water supply pipe (403) is provided on one side of the first water supply pipe (402). The first water supply pipe (402) and the second water supply pipe (403) are connected and interconnected.

4. A solid-liquid separation device for urban wastewater treatment according to claim 3, characterized in that: The bottom of the first nozzle (5) is provided with a first connecting seat (501), which is connected to the first water supply pipe (402).

5. A solid-liquid separation device for urban sewage treatment according to claim 1, characterized in that: The guide baffle (6) has a water-permeable hole (601), and a fixing plate (602) is provided at the connection between the guide baffle (6) and the separation conveyor belt (2).

6. A solid-liquid separation device for urban sewage treatment according to claim 1, characterized in that: The separation conveyor belt (2) has a first permeable trough (201), and a separation hook (202) is provided on the outside of the separation conveyor belt (2). The separation hook (202) has a second permeable trough (203).

7. A solid-liquid separation device for urban wastewater treatment according to claim 6, characterized in that: A conveyor roller (205) is provided on the inner side of the separating conveyor belt (2), and a transmission block (206) is provided on the outer side of the conveyor roller (205). The transmission block (206) is fitted into the first permeable trough (201). A second connecting seat (701) is provided on one side of the second nozzle (7). The second connecting seat (701) is connected to the second water supply pipe (403).