A liquid tank structure of a rolling mill process system for a shallow pit

Abstract

The application discloses a liquid tank structure of a rolling mill process system for a shallow pit, which comprises the liquid tank structure connected with the rolling mill process system, and the liquid tank structure comprises a dirty liquid tank, a clean liquid tank and a filter; the clean liquid tank is located at the upper portion of the inner cavity of the dirty liquid tank, and one side of the clean liquid tank is fixed with the upper portion of the inner wall of the dirty liquid tank; the bottom wall of the dirty liquid tank is communicated with the lower portion of the side wall of the filter through a filter pump structure; the bottom wall of the clean liquid tank is respectively communicated with the input end of the rolling mill process system through a jet pump structure and a process pump structure, and the bottom of the rolling mill extends into the dirty liquid tank through a liquid return pipe. The structure of the application is reasonable, the clean liquid tank is located at the upper portion of the inner cavity of the dirty liquid tank, that is, the clean liquid tank and the dirty liquid tank are arranged in a top-down mode, which is beneficial to reducing the volume of the whole structure, reducing the height requirement of the clean liquid tank and the dirty liquid tank respectively, improving the construction efficiency, reducing the construction cost, greatly reducing the construction danger, and is suitable for wide application and good in practicality.

Description

Technical Field

[0001] This invention belongs to the technical field of rolling mill process systems, specifically relating to a liquid tank structure for a shallow pit rolling mill process system. Background Technology

[0002] In the rolling mill process, a process system is required, and this process system requires a liquid tank structure. For example, Chinese Patent Publication No. CN214890423U, entitled "A Split-Type Cold Rolling Mill Process Lubrication Device," includes an oil tank, oil pipelines, a sludge disposal device, a magnetic mesh filter, a clean liquid disposal device, and a water cooling device. The oil pipelines connect the oil tank, sludge disposal device, magnetic mesh filter, clean liquid disposal device, and water cooling device to form a lubricating oil passage. The oil tank is characterized by comprising a clean liquid tank and a sludge disposal tank. The top of the clean liquid tank is connected to the clean liquid disposal device, the top of the sludge disposal tank is connected to the sludge disposal device, and the water cooling device is connected to the clean liquid tank.

[0003] Although it can meet the general usage requirements, in actual applications, its sewage device and clean liquid device are mostly set up with a left-right structure, and the liquid level of both sewage device and clean liquid device must be lower than the bottom of the return pipe. Therefore, the overall structure needs to be larger, and the requirements for the bottom elevation (depth) of the pit during installation are also greatly increased, which to some extent increases the construction difficulty and construction cost, thus limiting its applicability and practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid tank structure for a shallow pit rolling mill process system that has a reasonable structural design and is conducive to reducing construction difficulty and cost.

[0005] The technical solution to achieve the purpose of this invention is a liquid tank structure for a shallow pit rolling mill process system, including a liquid tank structure connected to the rolling mill process system, wherein the liquid tank structure includes a sludge tank, a clean liquid tank, and a filter;

[0006] The clean liquid tank is located in the upper part of the inner cavity of the dirty liquid tank, and one side of the clean liquid tank is fixed to the upper part of the inner wall of the dirty liquid tank.

[0007] The bottom wall of the waste liquid tank is connected to the lower part of the side wall of the filter through a filter pump structure, and the upper part of the side wall of the filter extends into the clean liquid tank from the top wall of the clean liquid tank through a guide pipe.

[0008] The bottom wall of the clean liquid tank is connected to the input end of the rolling mill process system through a jet pump structure and a process pump structure, respectively. The bottom of the rolling mill extends into the waste liquid tank through a return liquid pipe.

[0009] A further preferred embodiment is that an overflow port is provided on the bottom wall of the clean liquid tank, and an overflow vertical cylinder is fixed to the top of the overflow port, with the top of the overflow vertical cylinder located between the middle of the clean liquid tank and the top wall of the clean liquid tank.

[0010] A further preferred embodiment is that the filter pump structure includes at least one working filter pump and one standby filter pump connected in parallel.

[0011] A further preferred embodiment is that the jet pump structure includes at least one active jet pump and one standby jet pump connected in parallel.

[0012] A further preferred embodiment is that the process pump configuration includes at least one operating lubrication pump and one standby lubrication pump connected in parallel.

[0013] A further preferred embodiment is that the volume of the clean liquid tank is smaller than the inner cavity size of the dirty liquid tank.

[0014] A further preferred embodiment is that the outlet of the return pipe is located above the bottom wall of the clean liquid tank.

[0015] Its working principle can be briefly described as follows: the clean liquid is pumped to the rolling mill by the jet pump and becomes sludge, which flows to the sludge tank through the return pipe; the sludge is pumped to the filter by the filter pump, and after filtration, it becomes clean liquid and flows into the clean liquid tank. This cycle repeats continuously.

[0016] During normal operation, the flow rate of the filter pump is greater than that of the jet pump. The excess flow overflows from the clean liquid tank to the sludge tank through the overflow port, thus keeping the clean liquid tank at a high level without overflowing outside the tank (to the pit floor). The flow rate from the rolling mill to the sludge tank plus the flow rate from the overflow port to the sludge tank is exactly balanced with the flow rate of the filter pump, maintaining normal system circulation and preventing the sludge tank from being emptied.

[0017] In abnormal situations, the flow rate of the filter pump is less than that of the jet pump. The excess flow causes the liquid level in the clean liquid tank to drop and the liquid level in the sludge tank to rise. When the liquid level in the sludge tank rises above the overflow port, the sludge overflows back into the clean liquid tank through the overflow port. Although the clean liquid is contaminated by the sludge, it will not overflow outside the tank (to the pit floor), thus ensuring operational safety.

[0018] The present invention has the following positive effects: The structure of the present invention is reasonably designed, with the clean liquid tank located in the upper part of the inner cavity of the dirty liquid tank, that is, the clean liquid tank and the dirty liquid tank are arranged vertically, which helps to reduce the volume of the entire structure and reduce the height requirements of the clean liquid tank and the dirty liquid tank respectively. Moreover, it only requires a shallow pit for use, which helps to improve construction efficiency, reduce construction costs, and also greatly reduce construction risks, shorten the construction period, and reduce the requirements for pit elevation (depth). It is stable and reliable in use, with strong applicability and good practicality. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Attached reference numerals: 1. Rolling mill process system; 2. Liquid tank structure; 21. Sludge tank; 22. Clean liquid tank; 23. Filter; 3. Filter pump structure; 4. Guide pipe; 5. Jet pump structure; 6. Process pump structure; 7. Return pipe; 8. Overflow port; 9. Overflow vertical cylinder. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0023] See Figure 1 A liquid tank structure for a shallow pit rolling mill process system includes a liquid tank structure 2 connected to the rolling mill process system 1. The liquid tank structure 2 includes a sludge tank 21, a clean liquid tank 22, and a filter 23. In the above structure, the length and width of the clean liquid tank are smaller than the length and width of the sludge tank, and the height of the clean liquid tank can be processed as needed.

[0024] In practical applications, the clean liquid tank is located in the upper part of the inner cavity of the dirty liquid tank, and one side of the clean liquid tank is fixed to the upper part of the inner wall of the dirty liquid tank; that is, there is a certain space for storing dirty liquid between the bottom of the clean liquid tank and the bottom wall of the dirty liquid tank. The volume of the clean liquid tank is smaller than the inner cavity size of the dirty liquid tank.

[0025] In practical applications, the bottom wall of the wastewater tank is connected to the lower side wall of the filter 23 via the filter pump structure 3, and the upper side wall of the filter extends into the clean liquid tank from the top wall via a guide pipe 4. In this embodiment, the filter is a conventional structure of the prior art, mainly used for filtration. The wastewater in the wastewater tank enters the filter, is filtered, and then enters the clean liquid tank through the guide pipe. The filter pump structure includes at least one operating filter pump and one standby filter pump connected in parallel.

[0026] In practical application, the bottom wall of the clean liquid tank is connected to the input end of the rolling mill process system via the jet pump structure 5 and the process pump structure 6. The bottom of the rolling mill extends into the waste liquid tank via the return pipe 7. The jet pump structure includes at least one operating jet pump and one standby jet pump connected in parallel. The process pump structure includes at least one operating lubrication pump and one standby lubrication pump connected in parallel. The outlet of the return pipe is located above the bottom wall of the clean liquid tank.

[0027] The waste liquid in the rolling mill process system enters the waste liquid tank through the return liquid pipe, while the liquid in the clean liquid tank enters the rolling mill process system, forming a continuous cycle.

[0028] An overflow port 8 is provided on the bottom wall of the clean liquid tank, and an overflow vertical cylinder 9 is fixed to the top of the overflow port. The top of the overflow vertical cylinder is located between the middle of the clean liquid tank and the top wall of the clean liquid tank. In this embodiment, the height of the overflow vertical cylinder is about 3 / 4 of the height of the clean liquid tank, that is, when the liquid volume in the clean liquid tank is too high, it will flow into the waste liquid tank from the overflow vertical cylinder.

[0029] Its working principle can be briefly described as follows: the clean liquid is pumped to the rolling mill by the jet pump and becomes sludge, which flows to the sludge tank through the return pipe; the sludge is pumped to the filter by the filter pump, and after filtration, it becomes clean liquid and flows into the clean liquid tank. This cycle repeats continuously.

[0030] During normal operation, the flow rate of the filter pump is greater than that of the jet pump. The excess flow overflows from the clean liquid tank through the overflow port into the sludge tank, thus keeping the clean liquid tank at a high level without overflowing outside the tank (to the pit floor). The flow rate from the rolling mill to the sludge tank plus the flow rate overflowing from the overflow port to the sludge tank is exactly balanced with the flow rate of the filter pump, maintaining the normal circulation of the process lubrication system and preventing the sludge tank from being emptied.

[0031] In abnormal situations, the flow rate of the filter pump is less than that of the jet pump. The excess flow causes the liquid level in the clean liquid tank to drop and the liquid level in the sludge tank to rise. When the liquid level in the sludge tank rises above the overflow port, the sludge overflows back into the clean liquid tank through the overflow port. Although the clean liquid is contaminated by the sludge, it will not overflow outside the tank (to the pit floor), thus ensuring operational safety.

[0032] The present invention has a reasonable structural design, with the clean liquid tank located in the upper part of the inner cavity of the waste liquid tank, that is, the clean liquid tank and the waste liquid tank are arranged vertically, which helps to reduce the overall volume of the structure and the height requirements of the clean liquid tank and the waste liquid tank respectively. Moreover, it only requires a shallow pit for use, which helps to improve construction efficiency, reduce construction costs, and greatly reduce construction risks. It also helps to shorten the construction period and reduces the requirements for pit elevation (depth). It is stable and reliable in use, with strong applicability and good practicality.

[0033] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0034] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, these obvious variations or modifications derived from the essential spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. A liquid tank structure of a rolling mill process system for a shallow pit, comprising a liquid tank structure connected to a rolling mill process system, characterized by: The liquid tank structure comprises a dirty liquid tank, a clean liquid tank and a filter; The clean liquid tank is located at the upper part of the inner cavity of the dirty liquid tank, and one side of the clean liquid tank is fixed to the upper part of the inner wall of the dirty liquid tank; The bottom wall of the dirty liquid tank is communicated with the lower part of the side wall of the filter through a filter pump structure, and the upper part of the side wall of the filter is extended into the clean liquid tank through a guide pipe from the top wall of the clean liquid tank; The bottom wall of the clean liquid tank is communicated with the input end of the rolling mill process system through a jet pump structure and a process pump structure respectively, and the bottom of the rolling mill is extended into the dirty liquid tank through a liquid return pipe; An overflow port is formed on the bottom wall of the clean liquid tank, and an overflow vertical cylinder is fixed to the top of the overflow port, and the top of the overflow vertical cylinder is located between the middle part of the clean liquid tank and the top wall of the clean liquid tank; The volume of the clean liquid tank is smaller than the size of the inner cavity of the dirty liquid tank; The water outlet of the liquid return pipe is located above the bottom wall of the clean liquid tank.

2. The header structure of a rolling mill process system for shallow trenches according to claim 1, characterized in that: The filter pump structure comprises at least one working filter pump and one standby filter pump connected in parallel.

3. The header structure of a rolling mill process system for shallow trenches according to claim 2, characterized in that: The jet pump structure comprises at least one working jet pump and one standby jet pump connected in parallel.

4. The header structure of a rolling mill process system for shallow trenches according to claim 3, characterized in that: The process pump structure comprises at least one working lubricating pump and one standby lubricating pump connected in parallel.

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