Pre-removal tank liquid storage tank of degreasing unit

Abstract

The utility model discloses a pre-removal tank liquid storage tank of a degreasing unit. The pre-removal tank liquid storage tank comprises a storage tank, a manhole, an overflow weir, a nozzle and a centrifugal pump, according to the foam storage tank, an original open type tank is made into a closed type structure, the two overflow weirs are arranged in the tank, the storage tank is divided into two grids, a channel is formed between the two overflow weirs, tank liquid can pass through the channel, foam gathered on the top of the tank liquid can be blocked by the overflow weir at the right end, the blocking function is achieved, the foam in the storage tank is pumped by the centrifugal pump, and the foam can be stored in the storage tank. The high-speed rotating module in the pump provides shearing force, quickly shreds bubbles and crushes the bubbles generated in the production process by utilizing centrifugal force, liquid released by the bubbles immediately falls to the device wall by the centrifugal force and is compressed into liquid flow to return to the storage tank again, loss caused by tank liquid overflow is avoided, and the nozzle can spray atomized cooling water regularly according to set requirements, so that the production efficiency is improved. And the principle that the collected foam is reduced into liquid at a high speed is used in cooperation with the storage tank, so that a very good defoaming effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of degreasing and cleaning technology for cold-rolled strip steel, specifically a pre-degreasing liquid storage tank for a degreasing unit. Background Technology

[0002] The original cold-rolled strip degreasing unit's pre-degreasing solution storage tank had an open structure. During production, to maintain the required temperature and concentration of the solution as specified in the production process, a tubular heater was installed inside the tank for steam heating. Since the solution was a type 502 alkaline degreasing agent, this solution generated a large amount of foam under heat and continuous circulation and stirring. This foam caused the following problems: First, the foam continuously accumulated at the top of the tank and overflowed, leading to a significant loss of solution. The overflowing foam entered the wastewater, increasing the difficulty and cost of wastewater treatment. Second, over time, the foam in the tank absorbed impurities, which, when returned to the working tank by the spray pump and sprayed again onto the surface of the cold-rolled strip to be cleaned, caused surface defects. Third, to maintain the required concentration, the degreasing agent needed to be continuously added, and the overflowing foam also affected the on-site environment.

[0003] To reduce foam generated during pre-defoaming, the industry typically adds defoaming agents periodically, but the effect is minimal, which has been a persistent problem in the industry. Utility Model Content

[0004] The purpose of this invention is to provide a pre-degreasing liquid storage tank for a degreasing unit to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pre-degreasing liquid storage tank for a degreasing unit, comprising a storage tank, a tubular heater provided in the storage tank, an interface assembly provided on the side of the storage tank, a manhole provided on the storage tank, an overflow weir provided in the storage tank, a nozzle provided in the manhole, and a centrifugal pump provided on the storage tank.

[0006] Preferably, the storage tank is fixed with an overflow weir, which divides the storage tank into compartments.

[0007] Preferably, there are two overflow weirs, one located at the lower end of the storage tank and the other located at the upper end of the storage tank, with a channel formed between the two overflow weirs.

[0008] Preferably, the overflow weir divides the storage tank into left and right compartments, and the nozzle is located in the left compartment of the storage tank.

[0009] Preferably, the overflow weir divides the storage tank into two compartments, left and right, with two centrifugal pumps installed in each compartment.

[0010] Preferably, the lower overflow weir has at least two through holes in the middle.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model features a built-in defoaming function. The originally open tank is transformed into a closed structure, with two overflow weirs inside, dividing the storage tank into two compartments. A channel is formed between the two overflow weirs, allowing the tank liquid to pass through. Foam on the surface of the liquid gathers at the top and is blocked by the overflow weir on the right, thus achieving a blocking effect. A centrifugal pump extracts the foam from the storage tank, and a high-speed rotating module inside the pump provides shearing force to quickly break up the bubbles. Centrifugal force is used to break up the foam generated during production. The liquid released from the bubbles is immediately thrown against the tank wall by centrifugal force and compressed back into liquid flow, avoiding the loss of tank liquid overflow. Nozzles can periodically spray mist-like cooling water according to set requirements, thereby reducing foam generation. The principle of rapidly reducing foam back to liquid, combined with the storage tank, achieves a very good defoaming effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a side sectional view of the present invention.

[0015] Figure 3 This is a top view of the structure of this utility model.

[0016] In the diagram: Storage tank-1, tubular heater-2, interface assembly-3, manhole-4, overflow weir-5, nozzle-6, centrifugal pump-7. Detailed Implementation

[0017] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0018] Please see Figure 1 , Figure 2 and Figure 3 This utility model provides a pre-degreasing liquid storage tank for a degreasing unit, including a storage tank 1, a tubular heater 2 installed in the storage tank 1, an interface component 3 installed on the side of the storage tank 1, and a manhole 4 installed on the storage tank 1.

[0019] Please see Figure 1 , Figure 2 and Figure 3This utility model provides a pre-degreasing liquid storage tank for a degreasing unit. The liquid flows back to the right side of the tank from the return pipe. Due to heating, foam is continuously generated and accumulates at the top. An overflow weir 5 is provided in the storage tank 1 to divide the storage tank 1 into sections. There are two overflow weirs 5. One overflow weir 5 is located at the lower end of the storage tank 1 and has at least two through holes in the middle for the liquid to flow. The other overflow weir 5 is located at the upper end of the storage tank 1 to block the foam. A channel is formed between the two overflow weirs 5, through which the liquid can pass. The foam on the liquid is blocked by the overflow weir 5 at the right end to achieve the blocking effect.

[0020] Manhole 4 can be used to observe the foam situation. At the same time, a nozzle 6 is installed below the manhole 4. The nozzle 6 is located in the left compartment of the storage tank 1. The nozzle 6 can spray cooling water periodically according to the set requirements to further defoam. It is connected to the return pump, which is connected to the tank liquid return pipe. The overflow weir 5 divides the storage tank 1 into left and right compartments. Two centrifugal pumps 7 are installed in the two compartments respectively. The collection pipe of the centrifugal pump 7 is located at the upper end of the storage tank 1. The foam that gathers at the top of the tank liquid comes into contact with the collection pipe of the centrifugal pump 7 and can be extracted. The foam will be inside the centrifugal pump 7. The high-speed rotating module inside the pump provides shearing force to quickly tear the bubbles. Centrifugal force is used to break the foam generated in the production process. The liquid released by the bubbles is immediately thrown against the wall by centrifugal force and compressed into liquid flow. The return pipe of the centrifugal pump 7 is connected to the rear side of the storage tank 1. The compressed liquid inside the pump can return to the storage tank 1.

[0021] Specifically, the originally open tank is made into a closed structure, with two overflow weirs 5 inside, dividing the storage tank 1 into two compartments. A channel is formed between the two overflow weirs 5, allowing the tank liquid to pass through. Foam on the tank liquid will gather at the top and be blocked by the overflow weir 5 on the right end to achieve a blocking effect. Centrifugal pump 7 extracts the foam from storage tank 1. The high-speed rotating module inside the pump provides shearing force to quickly tear the bubbles. Centrifugal force is used to break the foam generated during the production process. The liquid released by the bubbles is immediately thrown against the wall by centrifugal force and compressed into liquid flow to return to storage tank 1, avoiding the loss of tank liquid overflow. Nozzle 6 can spray mist-like cooling water to reduce foam generation. The principle of collecting foam and quickly reducing it back to liquid, combined with storage tank 1, achieves a very good defoaming effect.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pre-degreasing liquid storage tank for a degreasing unit, comprising a storage tank (1), a tubular heater (2) disposed in the storage tank (1), an interface assembly (3) disposed on the side of the storage tank (1), and a manhole (4) disposed on the storage tank (1), characterized in that: It also includes an overflow weir (5), the storage tank (1) is provided with an overflow weir (5), a nozzle (6) is provided in the manhole (4), and a centrifugal pump (7) is provided on the storage tank (1).

2. The pre-degreasing liquid storage tank for a degreasing unit according to claim 1, characterized in that: An overflow weir (5) is fixed in the storage tank (1), and the storage tank (1) is divided into compartments by the overflow weir (5).

3. The pre-degreasing liquid storage tank for a degreasing unit according to claim 2, characterized in that: Two overflow weirs (5) are provided. One overflow weir (5) is located at the lower end of the storage tank (1), and the other overflow weir (5) is located at the upper end of the storage tank (1). A channel is formed between the two overflow weirs (5).

4. The pre-degreasing liquid storage tank for a degreasing unit according to claim 2, characterized in that: The overflow weir (5) divides the storage tank (1) into left and right compartments, and the nozzle (6) is located in the left compartment of the storage tank (1).

5. The pre-degreasing liquid storage tank for a degreasing unit according to claim 4, characterized in that: The overflow weir (5) divides the storage tank (1) into two compartments, left and right, with two centrifugal pumps (7) installed in each compartment.

6. The pre-degreasing liquid storage tank for a degreasing unit according to claim 3, characterized in that: The overflow weir (5) at the lower end is provided with at least two through holes in the middle.

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