Sludge pump with anti-blocking structure

By introducing a water tank into the sludge pump to dilute the sludge and utilizing a backwashing system, the sludge pump clogging problem was solved, achieving a highly efficient anti-clogging effect and improving the operational stability and processing efficiency of the sludge pump.

CN223881364UActive Publication Date: 2026-02-06CHINA ENERGY CONSERVATION (TONGHUA) ENVIRONMENTAL PROTECTION ENERGY CO LTD
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Patent Information

Application Number
CN202520514917.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-06
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Sludge pumps are prone to clogging when handling high-viscosity sludge, which affects work efficiency and increases maintenance costs.

Method used

A water tank and backwashing system were designed. The water tank dilutes the sludge and the backwashing pump prevents clogging. Electric valves are used to precisely control the backwashing process.

Benefits of technology

It effectively reduces clogging, improves the flow capacity and working efficiency of sludge pumps, and reduces equipment downtime and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223881364U_ABST
Patent Text Reader

Abstract

The utility model discloses a sludge pump with an anti-blocking structure, which belongs to the technical field of anti-blocking of sludge pumps, and is characterized in that a water tank is mounted at the other end of a feed port, the water tank is positioned at the upper end of a driving device, a transmission shaft penetrates through a pipe body at the lower end of the water tank and extends into the feed port, and running water in the water tank enters the feed port and a sludge pump body to supplement water and dilute sludge in the pump body. Blockage is prevented; a circulating pipe is arranged between the first sludge pump body and the second sludge pump body, the lower end of the circulating pipe is connected with a backwashing water outlet pipe, and the other end of the backwashing water outlet pipe is provided with a backwashing pump. Water in the water tank dilutes sludge, fluidity is improved through the impeller, and blocking is reduced. Structural stability and functional diversity are guaranteed, water flow control is facilitated, and the service life of the transmission shaft is prolonged. The design of the circulating pipe and the backwashing water outlet pipe allows the backwashing pump to clean the sludge pump body and the material port, thereby preventing blockage. An electric valve accurately controls backwashing, and an intelligent system automatically adjusts according to requirements, so that the treatment process is optimized, and the efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sludge pump prevents the technical field of blocking, especially in a kind of sludge pump with anti-blocking structure. BACKGROUND

[0002] Sludge pump is a kind of pump specially used for conveying high-concentration slurry containing solid particles. It is usually used in sewage treatment plants, mining, construction sites and other occasions, for processing and conveying sludge, silt, sand and other media containing solid particles. Sludge pump has strong passing capacity and high wear resistance, which can effectively prevent clogging and wear. According to different application requirements, sludge pump can be divided into various types, such as centrifugal sludge pump, diaphragm sludge pump, screw sludge pump, etc. Selecting appropriate sludge pump type and size is crucial to ensure stable operation of the system and reduce maintenance cost.

[0003] In the process of processing sludge with high viscosity characteristics, if sludge pump is continuously operated for a long time, it may encounter a common problem that sludge gradually clogs in the interior of the pump, forming a blockage. This condition will directly affect the normal flow capacity of the pump. Blockage not only significantly reduces the working efficiency of the pump, but also increases the maintenance cost, and also increases the downtime of the equipment, thereby affecting the overall production efficiency. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a kind of sludge pump with anti-blocking structure, which can effectively solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A sludge pump with anti-blocking structure, comprising a driving device, a transmission device, a transmission shaft, a material port, a first sludge pump body and a second sludge pump body, the transmission shaft is connected to the output end of the driving device through the transmission device, and the shaft body of the transmission shaft is sequentially provided with the material port, the first sludge pump body and the second sludge pump body from left to right.

[0007] The other end of the material port is provided with a water tank, and the water tank is located at the upper end of the driving device. The transmission shaft extends through the lower end pipe of the water tank to the material port. The water in the water tank flows into the material port and the sludge pump body to realize water replenishment and dilution of the sludge in the pump body, thereby preventing clogging.

[0008] A flow pipe is arranged between the first sludge pump body and the second sludge pump body, and the lower end of the flow pipe is connected to a backwashing outlet pipe. The other end of the backwashing outlet pipe is provided with a backwashing pump, and the backwashing pump is connected to the water tank through a backwashing inlet pipe. The water tank passes water from the flow pipe into the sludge pump body through the backwashing inlet pipe, thereby realizing backwashing of the sludge pump body and the material port and preventing clogging.

[0009] As a preferred scheme of the present application, a first valve is installed between the backwashing outlet pipe and the backwashing pump, and a second valve is installed between the backwashing inlet pipe and the backwashing pump, and the opening and closing of the pipeline between the backwashing pump, the flow-through pipe and the water tank is controlled through the first valve and the second valve.

[0010] As a preferred scheme of the present application, the first valve and the second valve are electric valves, and both ends of the first valve and the second valve are provided with connecting flanges.

[0011] As a preferred scheme of the present application, the flow-through pipe is designed in a whole "U" shape, both ends of the flow-through pipe are provided with connecting flanges, and the connecting flanges are connected with the first sludge pump body and the second sludge pump body, and a sealing ring is arranged at the connecting position.

[0012] As a preferred scheme of the present application, the water tank is divided into a tank body and a pipeline, the pipeline is arranged at the lower end of the tank body, the pipeline and the tank body are communicated through an opening, a butterfly valve is arranged at the opening, the transmission shaft is connected with the pipeline through a bearing, and the transmission shaft and the pipeline are mechanically sealed.

[0013] As a preferred scheme of the present application, the material inlet, the first sludge pump body and the second sludge pump body are connected with each other through connecting flanges, and the first sludge pump body and the second sludge pump body are internally provided with impellers.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The water in the water tank enters the material inlet and the sludge pump body to dilute the sludge, and the rotation of the impeller improves the flowability of the sludge, thereby effectively reducing the possibility of blockage. The design of the water tank ensures the structural stability and functional diversity, facilitates the control of the water flow direction and prolongs the service life of the transmission shaft.

[0016] The design of the flow-through pipe and the backwashing outlet pipe between the first sludge pump body and the second sludge pump body enables the backwashing of the sludge pump body and the material inlet through the backwashing pump, thereby further preventing blockage. The first valve and the second valve as electric valves can accurately control the backwashing process, thereby ensuring the effective operation of the backwashing system. The intelligent control system of the two valves can automatically adjust the opening and closing time and frequency according to the actual sludge treatment demand, thereby optimizing the entire sludge treatment process and improving the treatment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall structure schematic view of the present application;

[0018] Figure 2 It is an overall structure display view of the present application;

[0019] Figure 3The overall structure front view of the utility model;

[0020] Figure 4 The material port, sludge pump body, flow pipe, backwash inlet and outlet pipes, backwash pump and valve display diagram of the utility model.

[0021] In the figure: 1, driving device; 2, transmission device; 3, transmission shaft; 4, water tank; 5, material port; 6, first sludge pump body; 7, second sludge pump body; 8, flow pipe; 9, backwash outlet pipe; 10, first valve; 11, backwash pump; 12, backwash inlet pipe; 13, second valve. DETAILED DESCRIPTION

[0022] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] As shown in Figure 1 - Figure 4 A sludge pump with anti-blocking structure has the structural features of preventing blockage. The sludge pump mainly comprises a driving device 1, a transmission device 2, a transmission shaft 3, a material port 5, a first sludge pump body 6 and a second sludge pump body 7. The transmission shaft 3 is tightly connected with the output end of the driving device 1 through the transmission device 2, and the shaft body of the transmission shaft 3 is sequentially provided with the material port 5, the first sludge pump body 6 and the second sludge pump body 7 from left to right. Such a design can effectively prevent blockage when the sludge pump is working.

[0024] In order to further ensure the smooth operation of the sludge pump, the other end of the material port 5 is provided with a water tank 4, and the water tank 4 is located at the upper end of the driving device 1. The transmission shaft 3 extends into the material port 5 through the pipe body at the lower end of the water tank 4. In this way, the flowing water in the water tank 4 can smoothly enter the material port 5 and the sludge pump body, thereby diluting the sludge in the pump body and effectively preventing blockage.

[0025] In order to further improve the self-cleaning ability of the sludge pump, a flow pipe 8 is specially designed between the first sludge pump body 6 and the second sludge pump body 7. The lower end of the flow pipe 8 is connected with a backwash outlet pipe 9, and the other end of the backwash outlet pipe 9 is provided with a backwash pump 11. The backwash pump 11 is connected with the water tank 4 through a backwash inlet pipe 12. The water tank 4 passes water from the flow pipe 8 into the sludge pump body through the backwash inlet pipe 12, thereby realizing backwashing of the sludge pump body and the material port 5 and further preventing blockage.

[0026] In order to ensure the effective control of the backwash system, a first valve 10 is installed between the backwash outlet pipe 9 and the backwash pump 11, and a second valve 13 is installed between the backwash inlet pipe 12 and the backwash pump 11. The opening and closing of the pipeline between the backwash pump 11, the flow-through pipe 8 and the water tank 4 can be accurately controlled through the first valve 10 and the second valve 13, thereby ensuring the smooth progress of the entire backwashing process.

[0027] In order to realize the automatic control of the valve, the first valve 10 and the second valve 13 are designed as electric valves. In addition, both ends of the first valve 10 and the second valve 13 are provided with connecting flanges, which makes the installation and maintenance of the valves more convenient and fast.

[0028] In order to ensure the stability and sealing of the flow-through pipe 8, the flow-through pipe 8 is designed in a whole "U" shape. The two ports of the flow-through pipe 8 are provided with connecting flanges, and are connected with the first sludge pump body 6 and the second sludge pump body 7 through the connecting flanges. The connecting part is specially designed with a sealing ring to ensure the sealing performance of the connecting part and prevent leakage.

[0029] In order to improve the structural stability and functional diversity of the water tank 4, the water tank 4 is designed to be composed of a tank body and a pipeline located at the lower end of the tank body. The pipeline and the tank body are connected through an opening, and a butterfly valve is arranged at the opening to facilitate the control of the water flow direction inside the water tank 4. The transmission shaft 3 is connected with the pipeline through a bearing, and the transmission shaft 3 and the pipeline are mechanically sealed, which ensures the stable operation of the transmission shaft 3 and prolongs the service life.

[0030] In order to ensure the connection stability and sealing of the components of the sludge pump, the material port 5, the first sludge pump body 6 and the second sludge pump body 7 are connected with each other through connecting flanges. In addition, the first sludge pump body 6 and the second sludge pump body 7 are provided with impellers inside. The arrangement of the impellers can improve the conveying efficiency of the sludge pump and prevent clogging.

[0031] Installation process: Place the drive device 1 in the designated location and ensure its stability. Connect the transmission device 2 tightly with the output end of the drive device 1. Pass the transmission shaft 3 through the lower end pipe of the water tank 4, and ensure that the shaft body of the transmission shaft 3 is sequentially provided with the material port 5, the first sludge pump body 6 and the second sludge pump body 7 from left to right. Install the water tank 4 on the upper end of the drive device 1, and ensure that the transmission shaft 3 passes through the lower end pipe of the water tank 4. Ensure the stable connection of the transmission shaft 3 with the lower end pipe of the water tank 4. Connect the first sludge pump body 6 and the second sludge pump body 7 to the transmission shaft 3 through the connecting flange, and ensure that the impeller is located inside the respective pump body. Connect the two ports of the flow-through pipe 8 to the first sludge pump body 6 and the second sludge pump body 7 respectively through the connecting flange. Ensure the stability of the "U" shape design of the flow-through pipe 8, and install the sealing ring to ensure the sealing. Connect the backwash pump 11 to the water tank 4 through the backwash water inlet pipe 12, and connect the backwash water outlet pipe 9 to the backwash pump 11. Install the first valve 10 and the second valve 13 on the backwash water outlet pipe 9 and the backwash water inlet pipe 12, and ensure that the connecting flange facilitates the installation and maintenance of the valves. Connect the first valve 10 and the second valve 13 to the automatic control system, and ensure the automatic control of the valves. Check whether all the connected parts are firm and there is no leakage. Ensure that all electrical connections are correct and meet the safety standards. Before starting the sludge pump, perform a trial run check to ensure that all parts are working properly.

[0032] Usage process: Turn on the drive device 1, the transmission device 2 drives the transmission shaft 3 to rotate, and the sludge pump starts to work. Continuously monitor the running state of the sludge pump to ensure that there is no abnormal noise or vibration. Regularly check whether the material port 5 and the sludge pump body are blocked.

[0033] Anti-blocking process: The water in the water tank 4 enters the material port 5 and the sludge pump body through the transmission shaft 3, dilutes the sludge and prevents blockage. The rotation of the impeller improves the flowability of the sludge and reduces the possibility of blockage.

[0034] When blockage is detected or maintenance is scheduled, turn off the main operation system of the sludge pump. Open the first valve 10 and the second valve 13 through the automatic control system. Turn on the backwash pump 11, and the water in the water tank 4 enters the flow-through pipe 8 through the backwash water inlet pipe 12. The water flow backwashes the first sludge pump body 6 and the second sludge pump body 7 through the flow-through pipe 8, and the blockage is flushed out of the backwash water outlet pipe 9. Observe the water flow of the backwash water outlet pipe 9 to ensure that the blockage is effectively removed. After backwashing is completed, turn off the backwash pump 11 and the valves to end the backwashing process. Restart the sludge pump and continue normal operation.

[0035] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0036] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A sludge pump with anti-blocking structure, comprising a driving device (1), a transmission device (2), a transmission shaft (3), a material port (5), a first sludge pump body (6) and a second sludge pump body (7), the transmission shaft (3) is connected with the output end of the driving device (1) through the transmission device (2), and the shaft body of the transmission shaft (3) is sequentially provided with the material port (5), the first sludge pump body (6) and the second sludge pump body (7) from left to right, characterized in that: The other end of the material port (5) is provided with a water tank (4), and the water tank (4) is located at the upper end of the driving device (1), the transmission shaft (3) extends to the material port (5) through the pipe body at the lower end of the water tank (4), and water in the water tank (4) flows into the material port (5) and the sludge pump body to realize water replenishment and sludge dilution in the pump body, thereby preventing blockage. ​ The first sludge pump body (6) and the second sludge pump body (7) are provided with a flow pipe (8), and the lower end of the flow pipe (8) is connected with a backwashing outlet pipe (9), and the other end of the backwashing outlet pipe (9) is provided with a backwashing pump (11), and the backwashing pump (11) and the water tank (4) are connected through a backwashing inlet pipe (12), and the water tank (4) passes water from the flow pipe (8) into the sludge pump body through the backwashing inlet pipe (12), so as to realize backwashing of the sludge pump body and the material port (5) and prevent blockage.

2. The sludge pump with anti-blocking structure according to claim 1, characterized in that: The backwashing outlet pipe (9) and the backwashing pump (11) are provided with a first valve (10), and the backwashing inlet pipe (12) and the backwashing pump (11) are provided with a second valve (13), and the first valve (10) and the second valve (13) control the opening and closing of the pipeline between the backwashing pump (11), the flow pipe (8) and the water tank (4).

3. The sludge pump with anti-blocking structure according to claim 2, characterized in that: The first valve (10) and the second valve (13) are electric valves, and the two ends of the first valve (10) and the second valve (13) are provided with connecting flanges.

4. The sludge pump with anti-blocking structure according to claim 3, characterized in that: The flow pipe (8) is designed in a whole "U" shape, the two ports of the flow pipe (8) are provided with connecting flanges, and the flow pipe (8) is connected with the first sludge pump body (6) and the second sludge pump body (7) through the connecting flanges, and the connecting portions are provided with sealing rings.

5. The sludge pump with anti-blocking structure according to claim 4, characterized in that: The water tank (4) is divided into a tank body and a pipeline, the pipeline is located at the lower end of the tank body, the pipeline and the tank body are communicated through an opening, the opening is provided with a butterfly valve, the transmission shaft (3) and the pipeline are connected through a bearing, and the transmission shaft (3) and the pipeline are mechanically sealed.

6. The sludge pump with anti-blocking structure according to claim 5, characterized in that: The material port (5), the first sludge pump body (6) and the second sludge pump body (7) are connected with each other through connecting flanges, and the first sludge pump body (6) and the second sludge pump body (7) are provided with impellers.