A filtering device for cold rolling oil of strip steel
By using a magnetic rod separator and a vacuum filter in the filter device of cold-rolled rolling oil in strip steel, the problem of rolling rolling point caused by iron powder particles in the rolling oil is solved, and efficient filtration and cleanliness of rolling oil are achieved.
Patent Information
- Application Number
- CN202420840947.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-23
AI Technical Summary
During the cold rolling process of strip steel, particles generated in the rolling oil circulation system will enter the rolling oil, causing the concave points on the rolling roll surface and affecting the quality of the product panel.
A filter device for cold rolled rolled oil in strip steel is designed, including a oil-purifying tank, a dirty oil tank, a magnetic rod separator and a vacuum filter. The iron powder in the rolling oil is separated by a magnetic rod separator, and the iron powder content is filtration through a vacuum filter through a negative pressure cycle to remove impurities and reduce the iron powder content.
It effectively reduces the iron powder content in the rolling oil, ensures the cleanliness of the rolling oil, avoids the concave points on the rolling roller surface, and improves the quality of the product panel.
Smart Images
Figure CN222709884U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of rolling mill equipment of a strip steel production line, and in particular relates to a filtering device for cold-rolling rolling oil of a strip steel. Background Art
[0002] Six-roller reversible cold rolling mills are usually used for the production of building materials and household appliance thin plates. They mainly include rolling mill frames, rolling rolls, rolling oil circulation systems, and rolling oil spray systems. Among them, the design of the rolling oil circulation system is particularly important for quality control of products (especially the production of household appliances). The working principle of the system is mainly as follows: the rolling oil is pumped from the clean oil tank to the rolling oil spray system through a pump, and is used to lubricate and cool the rolls and steel strips in production. Then, the rolling oil enters the dirty oil tank through the return oil pipeline system. The solution in the dirty oil tank passes through a magnetic separator and is stirred, then is pumped to a vacuum filter through a filter pump. After removing impurities, it flows back to the clean oil tank, and then is pumped from the clean oil tank to the rolling oil spray system through a pump. This cycle repeats to form a rolling oil circulation system.
[0003] However, during the production process, the rolling oil circulation system will produce particles. These particles mainly come from raw steel plates, foreign objects falling into the pipes, iron powder aggregation, etc. These particles will enter the rolling oil, causing pits on the surface of the rollers, and ultimately resulting in the product plate surface quality not meeting the requirements.
[0004] Therefore, the applicant urgently needs to seek new technical solutions to ensure the cleanliness of rolling oil in rolling mills. Summary of the invention
[0005] In view of this, the purpose of the utility model is to provide a filtering device for cold rolling oil of strip steel, which separates iron powder in the rolling oil through a magnetic separator and circulates through a vacuum filter, thereby realizing the filtering function of the rolling oil, reducing the content of iron powder in the rolling oil, and effectively ensuring the cleanliness of the rolling oil.
[0006] The technical solution adopted by the utility model is as follows:
[0007] A filtering device for cold-rolling rolling oil of strip steel comprises a clean oil tank and a dirty oil tank; wherein a magnetic rod separator is installed in the dirty oil tank for processing iron powder in the rolling oil; and the dirty oil tank is connected to a filter pump through a conveying pipeline, and the output end of the filter pump is connected to a vacuum filter, and the rolling oil is vacuum filtered by the vacuum filter and then connected to the clean oil tank.
[0008] Preferably, the dirty oil tank is equipped with at least one agitator to avoid stratification of the rolling oil and facilitate uniform stirring.
[0009] Preferably, the clean oil tank is equipped with at least one agitator to avoid stratification of the rolling oil and facilitate uniform stirring.
[0010] Preferably, the dirty oil tank is equipped with one agitator, and the clean oil tank is equipped with two agitators distributed at intervals.
[0011] Preferably, the input end of the dirty oil tank is connected to the waste oil output end of the cold rolling mill through a pipeline, and the output end of the clean oil tank is connected to the oil filling port of the cold rolling mill through a pipeline.
[0012] Preferably, the clean oil tank and the dirty oil tank are arranged in parallel and at intervals.
[0013] Preferably, the rolling oil flow rate of the filter pump is 6900 L per minute.
[0014] Preferably, the clean oil tank and the dirty oil tank are both made of SS400 steel carbon.
[0015] Preferably, the capacity of the clean oil tank is equal to that of the dirty oil tank, wherein the capacity of the clean oil tank is 35000-40000L.
[0016] Preferably, the vacuum filter is a paper belt filter, and a negative pressure fan is installed in the paper belt filter.
[0017] The utility model sequentially arranges a magnetic rod separator, a filter pump and a vacuum filter between a dirty oil tank and a clean oil tank, separates iron powder in rolling oil by the magnetic rod separator, then transports the rolling oil after the iron powder is removed to the vacuum filter by the filter pump, performs negative pressure circulation filtration on the rolling oil by the vacuum filter, thereby realizing the filtering function of the rolling oil, reducing the content of iron powder in the rolling oil, and effectively ensuring the cleanliness of the rolling oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of a filter device for cold-rolling rolling oil of strip steel according to a specific implementation mode of the utility model. DETAILED DESCRIPTION
[0019] The utility model embodiment discloses a filtering device for cold-rolling rolling oil of strip steel, comprising a clean oil tank and a dirty oil tank; wherein a magnetic rod separator is installed in the dirty oil tank for processing iron powder in the rolling oil; and the dirty oil tank is connected to a filter pump through a conveying pipeline, and the output end of the filter pump is connected to a vacuum filter, and the rolling oil is vacuum-filtered by the vacuum filter and then connected to the clean oil tank.
[0020] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0021] See also Figure 1 As shown, a filtering device for cold-rolling rolling oil of a strip steel comprises a clean oil tank 1 and a dirty oil tank 2; wherein a magnetic rod separator 4 is installed in the dirty oil tank 2 for processing iron powder in the rolling oil to ensure that the iron powder content in the rolling oil does not exceed the standard; and the dirty oil tank 2 is connected to a filter pump 5 through a conveying pipeline, and the output end of the filter pump 5 is connected to a vacuum filter 6, and the rolling oil is vacuum filtered by the vacuum filter 6 and then connected to the clean oil tank 1, that is, the rolling oil will flow back to the clean oil tank 1 after being filtered by the vacuum air filter 6, and the rolling oil in the clean oil tank 1 will be supplied to the rolling mill for use;
[0022] Preferably, in this embodiment, the clean oil tank 1 and the dirty oil tank 2 are arranged in parallel and at intervals, the input end of the dirty oil tank 2 is connected to the waste oil output end of the cold rolling mill through a pipeline, and the output end of the clean oil tank 1 is connected to the oil filling port of the cold rolling mill through a pipeline;
[0023] Preferably, in the present embodiment, the dirty oil tank 2 is equipped with at least one agitator 3 for avoiding stratification of the rolling oil and facilitating uniform stirring; the clean oil tank 1 is equipped with at least one agitator 3 for avoiding stratification of the rolling oil and facilitating uniform stirring; specifically preferably, in the present embodiment, the dirty oil tank 2 is equipped with one agitator 3, and the clean oil tank 1 is equipped with two agitators 3 distributed at intervals.
[0024] Preferably, in this embodiment, the clean oil tank 1 and the dirty oil tank 2 are both made of SS400 steel carbon, and the capacities of the two are equal, wherein the capacities of the clean oil tank 1 and the dirty oil tank 2 are both 35000-40000L; Specifically preferably, in this embodiment, the capacities of the clean oil tank 1 and the dirty oil tank 2 are both 38000L, and the length of the clean oil tank 1 and the dirty oil tank 2 is 5760mm, the width is 2860mm, and the height is 2800mm;
[0025] Preferably, in this embodiment, the rolling oil flow rate of the filter pump 5 is 6900 L per minute.
[0026] Preferably, the vacuum filter 6 is a paper belt filter, in which a negative pressure fan (not shown) is installed, which can effectively remove impurities in the rolling oil.
[0027] In this embodiment, a magnetic rod separator, a filter pump and a vacuum filter are sequentially arranged between the dirty oil tank and the clean oil tank, and the iron powder in the rolling oil is separated by the magnetic rod separator. The rolling oil after the iron powder is removed is then transported to the vacuum filter by the filter pump. The rolling oil is negatively pressure-circulated and filtered by the vacuum filter, thereby realizing the filtering function of the rolling oil, reducing the content of the iron powder in the rolling oil, and effectively ensuring the cleanliness of the rolling oil.
[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A filtering device for cold rolling oil of strip steel, characterized in that: The invention comprises a clean oil tank (1) and a dirty oil tank (2); wherein a magnetic rod separator (4) is installed in the dirty oil tank (2) for removing iron powder from the rolling oil; and the dirty oil tank (2) is connected to a filter pump (5) through a conveying pipeline, and the output end of the filter pump (5) is connected to a vacuum filter (6), and the rolling oil is vacuum filtered by the vacuum filter (6) and then connected to the clean oil tank (1).
2. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The dirty oil tank (2) is equipped with at least one agitator (3) for preventing the rolling oil from being stratified and facilitating uniform stirring.
3. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The clean oil tank (1) is equipped with at least one stirrer (3) for preventing the rolling oil from being stratified and facilitating uniform stirring.
4. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The dirty oil tank (2) is equipped with one agitator (3), and the clean oil tank (1) is equipped with two agitators (3) distributed at intervals.
5. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The input end of the dirty oil tank (2) is connected to the waste oil output end of the cold rolling mill through a pipeline, and the output end of the clean oil tank (1) is connected to the oil filling port of the cold rolling mill through a pipeline.
6. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The clean oil tank (1) and the dirty oil tank (2) are arranged in parallel and at intervals.
7. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The rolling oil flow rate of the filter pump (5) is 6900L per minute.
8. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The clean oil tank (1) and the dirty oil tank (2) are both made of SS400 steel carbon.
9. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The clean oil tank (1) and the dirty oil tank (2) have the same capacity, wherein the capacity of the clean oil tank (1) is 35,000-40,000 L.
10. The filtering device for cold rolling oil of strip steel according to claim 1, characterized in that: The vacuum filter (6) is a paper belt filter, and a negative pressure fan is installed in the paper belt filter.