Circulating water pool filtering system for steel belt cleaning line
By designing a circulating water tank filtration system for steel belt cleaning lines, a two-layer filtration structure was adopted, which solved the problem of foam layer on the surface of the circulating water tank, achieving energy saving and consumption reduction, simplifying wastewater treatment, and improving the cleaning effect of steel belts and environmental protection.
Patent Information
- Application Number
- CN202520474704.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing technologies result in a thick layer of pollutant foam forming on the surface of the circulating water tank after steel belt cleaning, leading to increased energy consumption and greater difficulty in wastewater treatment, thus failing to achieve the goal of energy conservation and consumption reduction.
Design a two-layer filtration structure including an inlet filter assembly and a spray outlet filter assembly. The inlet filter assembly consists of a filter plate and filter cotton, while the spray outlet filter assembly consists of a filter screen. This structure is used to filter and buffer the spray liquid, ensuring that the water pumped out by the spray pump is clean.
Reduce water consumption, improve the degreasing and cleaning effect of steel strips, reduce the difficulty of subsequent wastewater treatment, protect the environment, reduce energy consumption, and improve production quality.
Smart Images

Figure CN223930893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel cleaning technology, and in particular to a circulating water tank filtration system for a steel strip cleaning line. Background Technology
[0002] In the steel production process, the steel strip raw materials used must be cleaned before use; otherwise, the dirt adhering to the steel strip will seriously affect the quality of the steel.
[0003] However, the cleaning fluid after cleaning contains a lot of oil. After spraying and due to the difference in liquid level, a thick layer of pollutant foam will form on the surface of the circulating water tank, which seriously affects the subsequent process. The existing technology can only eliminate the adverse effects by increasing the number of water changes, but this will greatly increase energy consumption and fail to achieve the expected energy saving and consumption reduction goals. It will also increase the difficulty of subsequent sewage treatment. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circulating water tank filtration system for steel strip cleaning lines. This system can reduce water consumption, improve the overall degreasing and cleaning effect of the steel strip, reduce the difficulty of subsequent wastewater treatment, and protect the environment. By designing a two-layer filtration structure, it can ensure that the water pumped out by the spray pump is clean, optimize the oil pollution problem in the circulating tank, reduce energy consumption, and improve production quality.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A circulating water tank filtration system for a steel strip cleaning line includes an inlet filtration assembly disposed within the circulating water tank.
[0007] The inlet filter assembly is installed at the inlet of the circulating water tank to filter the spray liquid after spraying and reduce the impact force between the spray liquid and the liquid in the circulating water tank.
[0008] Furthermore, the inlet filter assembly includes a horizontally arranged first support and a filter plate disposed on the first support. The filter plate is provided with a filter element, which is used to filter the spray liquid and buffer the spray liquid.
[0009] Furthermore, the filter element is filter cotton.
[0010] Furthermore, it also includes a spray nozzle filter assembly, which is disposed outside the water inlet of the spray pump and is used to intercept impurities that are not filtered by the inlet filter assembly.
[0011] Furthermore, the spray nozzle filter assembly includes a second support and a filter screen disposed on the second support.
[0012] Furthermore, both the first and second supports are made of stainless steel plates.
[0013] Furthermore, the filter screen has a right-angled structure, and the filter screen and one corner of the circulating water tank form a rectangular tubular suction section.
[0014] The beneficial effects of this utility model are:
[0015] This invention can reduce water consumption, improve the overall degreasing and cleaning effect of the steel belt, reduce the difficulty of subsequent wastewater treatment, and protect the environment. By designing a two-layer filtration structure, it can ensure that the water pumped out by the spray pump is clean, optimize the oil pollution problem in the circulation tank, reduce energy consumption, and improve production quality. Attached Figure Description
[0016] Figure 1 This is a top view of the circulating water tank filtration system used in the steel strip cleaning line in this embodiment of the present invention;
[0017] Figure 2 A side view of the circulating water tank filtration system used in a steel strip cleaning line;
[0018] In the diagram, 1. Inlet filter assembly; 2. Circulating water tank; 3. First support; 4. Filter screen; 5. Spray pump suction port; 6. Filter cotton; 7. Inlet filter plate; 8. First support. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] See Figures 1-2 This utility model provides a technical solution:
[0021] Example:
[0022] like Figure 1 and Figure 2 As shown, a circulating water tank filtration system for a steel strip cleaning line includes an inlet filter assembly 1 installed in the circulating water tank 2.
[0023] The inlet filter assembly 1 is installed at the inlet of the circulating water tank 2 to filter the spray liquid after spraying and reduce the impact force between the spray liquid and the liquid in the circulating water tank 2.
[0024] The inlet filter assembly 1 includes a horizontally arranged first support 8 and a filter plate 7 arranged on the first support 8. The filter plate 7 is provided with a filter element, which is used to filter the spray liquid and buffer the spray liquid.
[0025] The filter element is filter cotton 6.
[0026] It also includes a spray nozzle filter assembly, which is located outside the spray pump suction port 5 and is used to intercept impurities that are not filtered by the inlet filter assembly 1.
[0027] The spray nozzle filter assembly includes a second bracket 3 and a filter screen 4 disposed on the second bracket 3.
[0028] The first bracket 8 and the second bracket 3 are both made of 304 stainless steel plate (bent).
[0029] The filter screen 4 has a right-angled structure, and forms a rectangular tubular suction section with one corner of the circulating water tank 2. The top of the filter screen 4 is positioned close to the bottom of the filter cotton 6. This arrangement is to intercept any foam that is not completely filtered by the filter cotton 6 outside the suction section, ensuring that the spray pump draws in water that is free of foam and impurities.
[0030] The thickness of the filter cotton 6 can be adjusted according to the amount of spray liquid used. If the amount of spray liquid used is large, the thickness of the filter cotton 6 can be increased to ensure the filtration effect and buffering effect.
[0031] When using: The sprayed solution after spraying is... Figure 2 The spray liquid enters the circulating water tank 2 in the direction of the middle arrow. During this process, the spray liquid undergoes its first filtration by the filter cotton 6 (the filter cotton 6 adsorbs most of the impurities in the spray liquid). At the same time, due to the buffering effect of the filter cotton 6 on the spray liquid, the impact force between the filtered spray liquid and the liquid in the circulating water tank 2 is reduced, thereby significantly reducing the amount of foam generated. Meanwhile, some impurities remaining after filtration by the filter cotton 6 are also intercepted after passing through the filter plate 7.
[0032] The spray liquid that has undergone the first filtration will pass through filter screen 4 for a second filtration when it is pumped by the spray pump. At the same time, filter screen 4 can also intercept the foam generated in the circulating water tank 2, ensuring that the water pumped by the spray pump is clean.
[0033] This invention can reduce water consumption, improve the overall degreasing and cleaning effect of the steel belt, reduce the difficulty of subsequent wastewater treatment, and protect the environment. By designing a two-layer filtration structure, it can ensure that the water pumped out by the spray pump is clean, optimize the oil pollution problem in the circulation tank, reduce energy consumption, and improve production quality.
[0034] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.
Claims
1. A circulating water tank filtration system for a steel strip cleaning line, characterized in that: This includes the inlet filter assembly installed in the circulating water tank; The inlet filter assembly is installed at the inlet of the circulating water tank to filter the spray liquid after spraying and reduce the impact force between the spray liquid and the liquid in the circulating water tank.
2. The circulating water tank filtration system for a steel strip cleaning line according to claim 1, characterized in that: The inlet filter assembly includes a horizontally arranged first support and a filter plate disposed on the first support. The filter plate is provided with a filter element, which is used to filter the spray liquid and buffer the spray liquid.
3. The circulating water tank filtration system for a steel strip cleaning line according to claim 2, characterized in that: The filter element is filter cotton.
4. The circulating water tank filtration system for a steel strip cleaning line according to claim 2, characterized in that: It also includes a spray nozzle filter assembly, which is located outside the water inlet of the spray pump and is used to intercept impurities that are not filtered by the inlet filter assembly.
5. The circulating water tank filtration system for a steel strip cleaning line according to claim 4, characterized in that: The spray nozzle filter assembly includes a second bracket and a filter screen disposed on the second bracket.
6. The circulating water tank filtration system for a steel strip cleaning line according to claim 5, characterized in that: Both the first and second supports are made of stainless steel plates.
7. The circulating water tank filtration system for a steel strip cleaning line according to claim 5, characterized in that: The filter screen has a right-angled structure, and the filter screen and one corner of the circulating water tank form a rectangular tubular suction section.