External circulation cleaning filter

The external circulation cleaning filter, with its integrated installation and modular design, solves the problem of poor treatment effect of split-type walnut shell filters, achieving more efficient filtration and safer operation.

CN224394641UActive Publication Date: 2026-06-23YIXING LIYE ENG MACHINERIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIXING LIYE ENG MACHINERIES CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing walnut shell filters are installed in separate units, resulting in mediocre treatment effects and poor overall performance.

Method used

Design an integrated external circulation cleaning filter with two walnut shell filters on the same side, and equipped with components such as a booster pump, feed pump, backwash pump and air tank to achieve modular installation, improve operational safety and treatment effect.

Benefits of technology

By rationally arranging the components, better overall processing effect and operational safety were achieved, thus improving the overall performance of the walnut shell filter.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224394641U_ABST
    Figure CN224394641U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of outer circulation cleaning filter, it includes filter bottom crowbar, walnut shell filter is equipped in the upper portion of the filter bottom crowbar, material box and gas storage tank are equipped in the walnut shell filter side, material pump and backwash pump are equipped in the material box side, lifting pump is equipped in the material pump side, the gas storage tank is connected with air compressor, the one end of the lifting pump is connected with inlet pipe, the other end of the lifting pump is connected with walnut shell filter by pipeline, the one end of the backwash pump is connected with backwash water pipe, the other end of the backwash pump is connected with walnut shell filter by pipeline, the material pump is connected with walnut shell filter by pipeline, water outlet pipe is equipped in the walnut shell filter, the gas storage tank is connected with walnut shell filter by gas pipe.The utility model is integrally installed, and processing effect is good.
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Description

Technical Field

[0001] This utility model relates to a filtration device, specifically to an external circulation walnut shell cleaning filter. Background Technology

[0002] Walnut shell filters use walnut shells as the filter medium. Specially treated walnut shells have a large surface area and strong adsorption capacity, resulting in a high removal rate. Walnut shell filters are separation devices developed based on the principle of filtration and separation. They use oil-resistant filter media—special walnut shells—to remove oil and suspended solids from water, leveraging the large specific surface area, strong adsorption capacity, and high dirt-holding capacity of walnut shells. During filtration, water flows from top to bottom, passing through a distributor, filter media layer, and water collector to complete the filtration process. During backwashing, the agitator agitates the filter media, and water flows from bottom to top, thoroughly cleaning and regenerating the filter media. Existing walnut shell filters are all modular installations, and the overall treatment effect is generally average. Utility Model Content

[0003] Purpose of the invention: The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an external circulation cleaning filter with integrated installation and good treatment effect.

[0004] Technical Solution: To solve the above-mentioned technical problems, the external circulation cleaning filter of this utility model includes a filter base skid, a walnut shell filter is provided on the top of the filter base skid, a material box and an air storage tank are provided next to the walnut shell filter, a material pump and a backwash pump are provided next to the material box, a lift pump is provided next to the material pump, the air storage tank is connected to an air compressor, one end of the lift pump is connected to a water inlet pipe, and the other end of the lift pump is connected to the walnut shell filter through a pipe, one end of the backwash pump is connected to a backwash water pipe, and the other end of the backwash pump is connected to the walnut shell filter through a pipe, the material pump is connected to the walnut shell filter through a pipe, a water outlet pipe is provided on the walnut shell filter, and the air storage tank is connected to the walnut shell filter through an air pipe.

[0005] Furthermore, two walnut shell filters are provided, located on the same side.

[0006] Furthermore, the lift pump, feed pump, and backwash pump are all located on the same side.

[0007] Furthermore, two booster pumps are provided.

[0008] Furthermore, a water outlet and a backwash outlet are provided at the bottom of the walnut shell filter.

[0009] Furthermore, a spare water outlet and a spare backwash outlet are provided at the bottom of the walnut shell filter.

[0010] Beneficial Effects: Compared with the prior art, the significant advantages of this utility model are as follows: Two walnut shell filters are installed on the same side, along with the lift pump, feed pump, and backwash pump. This reasonable arrangement effectively improves operational safety. They are all mounted on the filter base skid for modular installation. The walnut shell filter is located on the top of the filter base skid, with a feed hopper and air tank next to it. The feed pump and backwash pump are located next to the feed pump, and the lift pump is located next to the feed pump. The air tank is connected to an air compressor. One end of the lift pump is connected to the water inlet pipe, and the other end is connected to the walnut shell filter via a pipe. One end of the backwash pump is connected to the backwash water pipe, and the other end is connected to the walnut shell filter via a pipe. The feed pump is connected to the walnut shell filter via a pipe. A water outlet pipe is installed on the walnut shell filter, and the air tank is connected to the walnut shell filter via an air pipe. The overall treatment effect is good. Attached Figure Description

[0011] Figure 1 This is a front view of the present invention;

[0012] Figure 2 This is a top view of the present invention;

[0013] Figure 3 This is a side view of the present invention. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] like Figure 1 , Figure 2 , Figure 3 As shown, the external circulation cleaning filter of this utility model includes a filter base skid 1. Two walnut shell filters 2 are mounted on the upper part of the filter base skid 1, located on the same side. A material tank 3 and an air storage tank 4 are located beside the walnut shell filters 2. A material pump 5 and a backwash pump 6 are located beside the material tank 3. Two lift pumps 7 are located beside the material pump 5. The lift pumps 7, material pump 5, and backwash pump 6 are all located on the same side. The air storage tank 4 is connected to an air compressor 8. One end of each lift pump 7 is connected to a water inlet pipe 9. The other end of each lift pump 7... The backwash pump 6 is connected to the walnut shell filter 2 via a pipe. One end of the backwash pump 6 is connected to the backwash water pipe 10, and the other end of the backwash pump 6 is connected to the walnut shell filter 2 via a pipe. The feed pump 5 is connected to the walnut shell filter 2 via a pipe. The walnut shell filter 2 is provided with a water outlet pipe 11. The air storage tank 4 is connected to the walnut shell filter 2 via an air pipe. The bottom of the walnut shell filter 2 is provided with a water outlet drain 12 and a backwash drain 13. The bottom of the walnut shell filter 2 is provided with a spare water outlet drain and a spare backwash drain.

[0016] This utility model features two walnut shell filters located on the same side, along with a lift pump, a feed pump, and a backwash pump. This rational arrangement effectively improves operational safety. The entire assembly is mounted on a filter base skid, enabling modular installation. The walnut shell filter is located on top of the skid, with a feed hopper and an air tank next to it. The feed pump and backwash pump are located next to the feed pump, and the lift pump is located next to the feed pump. The air tank is connected to an air compressor. One end of the lift pump is connected to the water inlet pipe, and the other end is connected to the walnut shell filter via a pipe. One end of the backwash pump is connected to the backwash water pipe, and the other end is connected to the walnut shell filter via a pipe. The feed pump is connected to the walnut shell filter via a pipe. A water outlet pipe is located on the walnut shell filter, and the air tank is connected to the walnut shell filter via an air pipe. The overall treatment effect is excellent.

[0017] This utility model provides a concept and method. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model. These improvements and modifications should also be considered as the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. An external-circulation cleaning filter, characterized by: It includes a filter base skid (1), a walnut shell filter (2) is provided on the upper part of the filter base skid (1), a material box (3) and an air storage tank (4) are provided next to the walnut shell filter (2), a material pump (5) and a backwash pump (6) are provided next to the material box (3), a lift pump (7) is provided next to the material pump (5), the air storage tank (4) is connected to an air compressor (8), one end of the lift pump (7) is connected to a water inlet pipe (9), the other end of the lift pump (7) is connected to the walnut shell filter (2) through a pipe, one end of the backwash pump (6) is connected to a backwash water pipe (10), the other end of the backwash pump (6) is connected to the walnut shell filter (2) through a pipe, the material pump (5) is connected to the walnut shell filter (2) through a pipe, a water outlet pipe (11) is provided on the walnut shell filter (2), and the air storage tank (4) is connected to the walnut shell filter (2) through an air pipe.

2. The external-circulation cleaning filter according to claim 1, characterized by: Two walnut shell filters (2) are provided, and they are located on the same side.

3. The external-circulation cleaning filter according to claim 1, characterized by: The lift pump (7), feed pump (5) and backwash pump (6) are all located on the same side.

4. The external-circulation cleaning filter according to claim 1, characterized by: Two booster pumps (7) are provided.

5. The external-circulation cleaning filter according to claim 1, characterized by: The bottom of the walnut shell filter (2) is provided with a water outlet (12) and a backwash outlet (13).

6. The external-circulation cleaning filter according to claim 1, wherein: The bottom of the walnut shell filter (2) is provided with a spare water outlet and a spare backwash outlet.