A cleaning cycle tank anti-foam overflow system

Abstract

The utility model relates to a kind of cleaning circulation tank anti-foam overflow system, belong to steel cleaning system field.This system includes injection pump (3) and injection pipe (5), the injection pump (3) import is connected with circulation tank (1) lower portion liquid outlet, the injection pipe (5) import is connected with injection pump (3) outlet, other end is along overflow pipe (7) outer wall and enters overflow pipe (7) inside, and injection pipe (5) outlet is opposite the overflow port (8) of circulation tank (1) upper portion.This system is by injection pipe (5) and is spouted by lye overflow pipe (7) cross pipe and overflow port (8) at the foam of place and is spouted back circulation tank (1), and eliminate the foam in the nearby area of circulation tank (1), effectively prevent foam with lye from circulation tank (1) and spout.This system solves the problem that foam generated in cleaning process is accumulated in circulation tank (1), pressure increases, leading to foam from overflow pipe (7) and spout, cause cleaning cost increase, cleaning effect drops.

Description

Technical Field

[0001] This utility model relates to a foam-proof overflow prevention system for a cleaning circulation tank, belonging to the field of steel cleaning systems. Background Technology

[0002] Cleaning is a crucial process in the production of hot-dip galvanized, aluminum-zinc, zinc-aluminum-magnesium, and continuous annealing steel strips. Its function is to remove sludge from the steel strip surface through the wetting, emulsifying, solubilizing, dispersing, and saponifying effects of cleaning agents, as well as the mechanical cleaning action of brushes and rollers. This allows the substrate to enter the annealing and galvanizing processes with a clean surface, preventing furnace roller nodules and improving product surface quality and coating adhesion. Existing cleaning circulation systems include circulation tanks, circulation pipe networks and pumps, heating systems, and filtration systems. The circulation tank is the central equipment of the cleaning circulation system, supplying cleaning fluid to the cleaning tank and recovering the cleaning fluid returning from the cleaning tank. It is equipped with delivery pipes, return pipes, and overflow pipes. During the cleaning process, the cleaning fluid generates a large amount of foam that accumulates in the circulation tank. As the foam grows and bursts, the pressure inside the circulation tank increases instantaneously, causing foam to spray out from the overflow pipe and accumulate on the floor of the cleaning section. This not only pollutes the environment but also, due to its corrosive nature, reduces equipment lifespan and precision, leading to increased malfunctions. Meanwhile, the foam carries away a large amount of effective ingredients from the cleaning solution, which not only reduces the cleaning effect and causes quality accidents such as zinc particles, exposed steel, and dezincification, but also increases the cleaning cost due to the overflow of alkaline solution. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the foam generated during the cleaning process accumulates in the circulation tank, increasing the pressure and causing the foam to spray out from the overflow pipe, resulting in increased cleaning costs and decreased cleaning effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a foam-proof overflow system for cleaning circulation tank, including a jet pump and a jet pipe. The inlet of the jet pump is connected to the liquid outlet at the bottom of the circulation tank, and the inlet of the jet pipe is connected to the outlet of the jet pump. The other end extends into the overflow pipe along the outer wall of the overflow pipe, and the outlet of the jet pipe is directly opposite the overflow port at the top of the circulation tank.

[0005] The system described above includes a nozzle at the outlet end of the spray pipe.

[0006] Furthermore, the nozzle in the above system has a shower head structure, and the sprayed liquid is a radial circular jet that covers the overflow port 8.

[0007] Furthermore, the overflow pipe in the above system has a "7" shaped structure.

[0008] Furthermore, the horizontal tube of the overflow pipe in the above system is an upward-sloping tube.

[0009] Furthermore, in the above system, the angle between the axis of the overflow pipe horizontal tube and the horizontal plane is 5° to 30°.

[0010] Furthermore, in the above system, the angle between the axis of the overflow pipe horizontal tube and the horizontal plane is 10° to 30°.

[0011] Furthermore, in the above system, the outlet end of the injection pipe extends into the overflow pipe along the outer bend of the overflow pipe and is sealed to the overflow pipe.

[0012] Furthermore, the nozzle in the above system is located on the inner wall of the bend on the outside of the overflow pipe.

[0013] In the above system, the injection pump is the circulation pump of the circulation tank, and the end of the injection pipe away from the overflow pipe is connected to the side wall of the cleaning fluid pipeline at the outlet end of the circulation pump.

[0014] The beneficial effects of this invention are as follows: This system features a simple structure, significant effect, stable process, and environmental friendliness. This technology adds a defoaming system to the overflow port of the cleaning circulation tank. After connecting the spray pipe to the spray pump, a portion of the alkaline solution is diverted to the nozzle, acting on the foam at the overflow port. This flushes the foam back into the circulation tank and utilizes the scouring action to eliminate foam in the surrounding area, effectively preventing foam from carrying alkaline solution out of the circulation tank, thus preventing environmental pollution from alkaline solution and foam, and preventing alkaline corrosion that could reduce equipment lifespan and precision. This ensures the stability of the on-site environment, equipment function, precision, and cleaning effect. Simultaneously, the defoaming alkaline solution comes from the circulation system, which does not affect the cleaning solution concentration, ensuring stable cleaning process and cleaning quality, and improving the quality of strip steel cleaning and the actual product quality. Furthermore, the horizontal overflow pipe is inclined and forms a certain angle with the horizontal plane, effectively recovering the sprayed alkaline solution, ensuring stable liquid level, and reducing cleaning solution consumption and costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Attached diagram labels: 1 is the circulation tank, 2 is the drain end, 3 is the jet pump, 4 is the cleaning fluid pipeline, 5 is the jet pipe, 6 is the nozzle, 7 is the overflow pipe, 8 is the overflow port, and 9 is the return pipe. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1As shown, this utility model discloses an anti-foaming overflow system for a cleaning circulation tank, comprising a jet pump 3 and a jet pipe 5. The inlet of the jet pump 3 is connected to the lower outlet of the circulation tank 1, and the inlet of the jet pipe 5 is connected to the outlet of the jet pump 3. The other end of the jet pipe 5 extends along the outer wall of the overflow pipe 7 and into the overflow pipe 7, with the outlet of the jet pipe 5 facing the overflow port 8 at the upper part of the circulation tank 1. Those skilled in the art will understand that the core of this system is the addition of an anti-foaming system to the overflow port 8 of the cleaning circulation tank 1. This anti-foaming system includes a jet pipe 5 and a jet pump 3. The inlet of the jet pump 3 is connected to the lower outlet of the circulation tank 1, and the inlet of the jet pipe 5 is connected to the outlet of the jet pump 3. The other end extends along the outer wall of the overflow pipe 7 and into the overflow pipe 7, with a sealed connection at the insertion point. Since the outlet of the spray pipe 5 is directly opposite the overflow port 8 at the top of the circulation tank 1, starting the spray pump 3 can spray some of the alkaline solution in the circulation tank 1 along the spray pipe 5, directly acting on the foam in the horizontal pipe of the overflow pipe 7 and at the overflow port 8, flushing the foam back into the circulation tank 1. Together with the return pipe 9, it ensures that the alkaline solution in the circulation tank 1 is constant, and uses the flushing action to eliminate the foam in the vicinity of the circulation tank 1, effectively preventing the foam from carrying the alkaline solution and spraying it out of the circulation tank 1 along the drain end 2 of the overflow pipe 7, saving costs, and ensuring the site environment, equipment function and accuracy, and cleaning effect.

[0019] Preferably, the outlet end of the spray pipe 5 in the above system is provided with a nozzle 6. Those skilled in the art will understand that, in order to ensure uniform spraying of the defoaming alkaline solution, this system preferably provides a nozzle 6 at the outlet end of the spray pipe 5. The nozzle 6 achieves uniform spraying of the alkaline solution and has a large effective area to completely cover the overflow port 8.

[0020] Preferably, the nozzle 6 in the above system has a shower-like structure, and the sprayed liquid forms a radial circular jet that covers the overflow port 8. Those skilled in the art will understand that the system further preferably uses a multi-hole shower-like structure for the nozzle 6, so that the sprayed alkaline liquid forms a circular projection that covers the overflow port 8 on the circulation tank 1. Because the nozzle 6 has a large orifice diameter and a radial angle, it prevents impurities from clogging the system and ensures that the spray projection is circular.

[0021] Preferably, the overflow pipe 7 in the above system has a "7" shaped structure. Those skilled in the art will understand that the "7" shaped overflow pipe 7 is preferred for ease of installation and fixing of the nozzle 6. In practice, it is preferable to weld a flange through a hole at the bend on the outside of the overflow pipe 7, and simultaneously weld a suitable flange to the outer wall of the spray pipe 5. The outlet end of the spray pipe 5, along with the nozzle, is then inserted into the overflow pipe 7, and the flange is connected and fixed with bolts to achieve a seal.

[0022] Preferably, the horizontal tube of the overflow pipe 7 in the above system is an upward-sloping tube. Those skilled in the art will understand that, in order to ensure that the alkali solution flows back to the circulation tank 1 in the non-overflow state, the horizontal tube of the overflow pipe 7 is preferably an upward-sloping tube, that is, the horizontal position of the end of the horizontal tube away from the circulation tank 1 is higher than the connection end between the overflow pipe 7 and the overflow port 8.

[0023] Preferably, the angle between the axis of the horizontal overflow pipe 7 and the horizontal plane in the above system is 5° to 30°. Those skilled in the art will understand that the angle between the axis of the horizontal overflow pipe 7 and the horizontal plane is further preferably 5° to 30°. This ensures that the alkali solution flows back to the circulation tank 1 in the non-overflow state, and also allows the alkali solution to flow into the circulation tank 1 along the side wall of the horizontal pipe during defoaming spraying, reducing alkali solution loss.

[0024] Preferably, the angle between the horizontal axis of the overflow pipe 7 and the horizontal plane in the above system is 10° to 30°. Those skilled in the art will understand that this system is only a further preferred embodiment where the angle between the horizontal axis of the overflow pipe 7 and the horizontal plane is 10° to 30°.

[0025] Preferably, in the above system, the outlet end of the injection pipe 5 extends into the overflow pipe 7 along the outer bend of the overflow pipe 7 and is sealed to the overflow pipe 7. Those skilled in the art will understand that, for ease of installation, this system preferably has the outlet end of the injection pipe 5 extending into the overflow pipe 7 along the outer bend of the overflow pipe 7, and to avoid leakage, the injection pipe 5 is preferably sealed to the overflow pipe 7.

[0026] Preferably, the nozzle 6 in the above system is located on the inner wall of the bend outside the overflow pipe 7. Those skilled in the art will understand that this system preferably installs the nozzle 6 at the bend of the overflow pipe 7, specifically on the inner wall of the bend outside the overflow pipe 7. This ensures that the spray direction is towards the overflow port 8 of the circulation tank 1, allowing the sprayed alkaline solution to cover the overflow port 8 to the maximum extent, flushing and eliminating foam in the overflow pipe and surrounding area of ​​the tank, preventing foam from carrying cleaning solution and overflowing.

[0027] Preferably, in the above system, the spray pump 3 is the circulation pump of the circulation tank 1, and the end of the spray pipe 5 away from the overflow pipe 7 is connected to the side wall of the cleaning fluid pipeline 4 at the outlet end of the circulation pump. Those skilled in the art will understand that, to reduce costs, this system further preferably uses the original circulation pump of the circulation tank 1 as the spray pump 3, eliminating the need for a separate purchase of a new one. Simultaneously, by connecting the end of the spray pipe 5 away from the overflow pipe 7 to the side wall of the cleaning fluid pipeline 4 at the outlet end of the circulation pump, the actual spray pipe 5 directly draws the circulating alkaline solution from the cleaning fluid pipeline 4 for spraying to eliminate foam, eliminating the need for a separate long pipeline and reducing costs.

Claims

1. A suds-overflow-preventing system for a cleaning cycle tank, characterized by: It includes a jet pump (3) and a jet pipe (5). The inlet of the jet pump (3) is connected to the lower outlet of the circulation tank (1), and the inlet of the jet pipe (5) is connected to the outlet of the jet pump (3). The other end extends into the overflow pipe (7) along the outer wall of the overflow pipe (7), and the outlet of the jet pipe (5) is directly opposite the overflow port (8) at the top of the circulation tank (1).

2. A foam-proof overflow system for a cleaning cycle tank according to claim 1, characterized in that: The nozzle (6) is provided at the outlet end of the spray pipe (5).

3. A foam-proof overflow system for a cleaning cycle tank according to claim 2, characterized in that: The nozzle (6) has a shower head structure, and the sprayed liquid is a radial circular jet that covers the overflow port (8).

4. A foam-proof overflow system for a cleaning cycle tank according to claim 2, characterized in that: The overflow pipe (7) has a "7" shaped structure.

5. A foam-proof overflow system for a cleaning cycle tank according to claim 4, characterized in that: The horizontal tube of the overflow pipe (7) is an inclined tube that slopes upward.

6. A foam-proof overflow system for a cleaning cycle tank according to claim 5, characterized in that: The angle between the horizontal axis of the overflow pipe (7) and the horizontal plane is 5° to 30°.

7. A foam-proof overflow system for a cleaning cycle tank according to claim 6, characterized in that: The angle between the horizontal axis of the overflow pipe (7) and the horizontal plane is 10° to 30°.

8. A foam-proof overflow system for a cleaning cycle tank according to claim 4, characterized in that: The outlet end of the spray pipe (5) extends into the overflow pipe (7) along the bend on the outside of the overflow pipe (7) and is sealed to the overflow pipe (7).

9. A foam-proof overflow system for a cleaning cycle tank according to claim 4, characterized in that: The nozzle (6) is located on the inner wall of the bend outside the overflow pipe (7).

10. A foam-proof overflow system for a cleaning cycle tank according to claim 1, characterized in that: The jet pump (3) is the circulation pump of the circulation tank (1), and the end of the jet pipe (5) away from the overflow pipe (7) is connected to the side wall of the cleaning liquid pipe (4) at the outlet end of the circulation pump.

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