Automatic oil stain overflow water-saving circulating system

Abstract

The utility model relates to the field of aluminum processing greasy dirt cleaning, in particular to an automatic greasy dirt overflow water-saving circulating system which comprises a cleaning tank, a water storage tank, an overflow pipe and a recovery tank. The water storage tank is located below the cleaning tank, a backflow pipe is connected between the water storage tank and the cleaning tank, the water storage tank is communicated with an overflow groove, and the overflow pipe is connected between the overflow groove and the recovery groove. By means of the scheme, the problem that oil stains in cleaning water cannot be collected and treated in a targeted mode is solved.

Description

Technical Field

[0001] The utility model relates to the field of aluminum processing oil pollution cleaning, in particular to an oil pollution automatic overflow water-saving circulation system. Background Art

[0002] Cleaning is an essential process in the aluminum processing and finishing production process. After the cleaning cycle, a large amount of oil will accumulate in the water with continuous cleaning. The oil will be transmitted to various processing points along with the production. The presence of oil in the cleaning water will seriously affect the quality of the production and processing products.

[0003] Therefore, the treatment of oil pollution in cleaning water is very important. However, at present, the oil pollution accompanying cleaning water cannot be collected and treated in a targeted manner. The common treatment method is to update the water quality of cleaning water in large quantities or add chemicals to the cleaning water containing oil pollution. This oil pollution treatment method is too costly and cannot effectively control and remove oil pollution in a sustainable manner. Utility Model Content

[0004] The utility model aims to provide an automatic oil overflow water-saving circulation system to solve the problem that the oil in the cleaning water cannot be collected and processed in a targeted manner.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic overflow water-saving circulation system for oil pollution, including a cleaning tank, a water storage tank, an overflow pipe and a recovery tank; the water storage tank is located below the cleaning tank, a reflux pipe is connected between the water storage tank and the cleaning tank, an overflow tank is connected to the water storage tank, and the overflow pipe is connected between the overflow tank and the recovery tank.

[0006] The principle and advantage of this solution are: the cleaning box is used to clean the aluminum material. During cleaning, the aluminum material is placed in the cleaning box, and the oil stains on the aluminum material are cleaned by cleaning water.

[0007] After the cleaning water has been used for a period of time, it contains a lot of oil stains, and the oil stains in the cleaning water in the cleaning tank need to be cleaned. At this time, the cleaning water in the cleaning tank is put into the water storage tank through the reflux pipe. Since the cleaning tank is located above the water storage tank, the liquid can automatically flow downward under the action of its own gravity. As the cleaning water continues to flow into the water storage tank, the liquid level in the water storage tank continues to rise. At the same time, since the density of oil stains is less than the density of water, the oil stains are located above the liquid surface. When the liquid level rises to the height of the overflow tank, the oil stains on the liquid surface flow to the overflow tank and are introduced into the recovery tank through the overflow pipe, realizing automatic overflow of the oil stains, and collecting the oil stains in the recovery tank. Then, the oil stains in the recovery tank can be treated uniformly and in a targeted manner.

[0008] The effect of the technical solution of this application is: the existing cleaning method does not have an effective sewage discharge structure, the amount of water used for the renewal of cleaning water is large, the cost is high, and the effect is not obvious. However, this solution uses the property that oil floats on the water surface because its density is lower than that of water to achieve low-cost separation of oil pollution and cleaning water. The oil pollution can be automatically overflowed and discharged for recycling. After the oil pollution is recovered into the recovery tank, it can be concentrated and targeted for unified treatment without the need to replace a large amount of cleaning water. In this way, the cost of oil pollution treatment is low, and the effect and efficiency of oil pollution treatment are greatly improved.

[0009] Preferably, as an improvement, a water supply pipe is connected to the water tank, one end of the water supply pipe away from the water tank is connected to a water source, the connecting part of the water supply pipe and the water tank is located below the overflow tank, and a valve is provided on the water supply pipe.

[0010] When the cleaning water in the cleaning tank is drained, the cleaning water in the water storage tank will no longer increase. If there is still oil on the surface of the cleaning water remaining in the water storage tank, the oil cannot overflow and continue to be collected because there is no cleaning water to replenish the water storage tank. Therefore, the valve is turned on, and the water in the water source enters the water storage tank through the water supply pipe, so that the water storage tank continues to be replenished, so that the oil on the surface of the liquid in the water storage tank continues to overflow into the overflow tank and is collected into the recovery tank through the overflow pipe to ensure the quality of oil recovery in the cleaning water, so that the separation of oil on the surface of the cleaning water is more thorough. Through this solution, the problem that the oil on the surface of the cleaning water remaining in the water storage tank cannot be completely recovered and separated after the cleaning water in the cleaning tank is drained is avoided.

[0011] In addition, the connection between the water supply pipe and the water storage tank in this solution is located below the overflow tank, so that the water supply pipe will not impact the oil stains on the liquid surface of the water storage tank during the process of replenishing water into the water storage tank, thereby preventing more water from entering the overflow tank.

[0012] Preferably, as an improvement, the overflow tank is located around the water tank. Thus, the oil on the surface of the liquid in the water tank can diffuse and move around and enter the overflow tank. Compared with only setting the overflow tank on one side of the water tank, the oil on the surface of the liquid can diffuse and move around, which is conducive to improving the efficiency of oil diffusion and separation.

[0013] Preferably, as an improvement, an extension extending outward is fixedly provided on the top of the water tank, and the overflow groove is a space surrounded by the extension. The edge of the overflow groove at the extension portion is used to prevent liquid from flowing from the overflow groove to the outside of the water tank.

[0014] Preferably, as an improvement, the top view cross section of the extension portion is polygonal or circular. Thus, the overflow groove can be arranged in different shapes.

[0015] Preferably, as an improvement, a liquid level meter is provided inside the water storage tank, so that the liquid level of the liquid in the water storage tank can be detected by the liquid level meter.

[0016] Preferably, as an improvement, it further comprises a controller and a pump, and the controller is electrically connected to the liquid level meter, the valve and the pump respectively.

[0017] Therefore, when the liquid level meter detects that the liquid level on the surface of the water tank becomes low, it means that there is no liquid in the cleaning tank to replenish the water tank. At this time, the liquid level meter transmits a signal to the controller. After receiving the signal, the controller gives instructions to control the valve and pump respectively, so that the valve opens and the pump starts. The water in the water source enters the water tank through the water supply pipe under the action of the pump, thereby automatically replenishing water to the water tank and continuing to collect and separate the oil on the surface of the liquid in the water tank.

[0018] Preferably, as an improvement, a spray pipe is provided in the cleaning box. The spray pipe is used to spray water to rinse the aluminum material in the cleaning box.

[0019] Preferably, as an improvement, the valve is a pneumatic valve or an electrically controlled valve.

[0020] Preferably, as an improvement, a valve is provided on the return pipe. Thus, by controlling the valve on the return pipe, whether the return pipe is connected is controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of the oil automatic overflow water-saving circulation system.

[0022] Figure 2 This is a schematic diagram of the bottom structure of the water tank in Example 4.

[0023] Figure 3 This is a schematic diagram of the top structure of the water tank in Example 5. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The figure marks in the drawings of the specification include: cleaning box 1, reflux pipe 2, first valve 3, water storage tank 4, liquid level meter 5, extension part 6, recovery tank 7, overflow pipe 8, water supply pipe 9, third valve 10, overflow tank 11, water storage chamber 12, sewage valve 13, sewage pipe 14.

[0026] Example 1

[0027] Basically as attached Figure 1 As shown: the oily dirt automatic overflow water-saving circulation system comprises a cleaning box 1, a water storage tank 4, an overflow pipe 8 and a recovery tank 7. A plurality of spray pipes (not shown in the figure) are arranged in the cleaning box 1. When cleaning, the aluminum material is placed in the cleaning box 1, and the cleaning water is sprayed out through the spray pipes. The cleaning water impacts the aluminum material, thereby cleaning the oily dirt on the surface of the aluminum material, and the cleaning water is retained in the cleaning box 1.

[0028] The water tank 4 is located below the cleaning tank 1. A vertical return pipe 2 is connected between the water tank 4 and the cleaning tank 1. A first valve 3 is provided on the return pipe 2. Whether the return pipe 2 is connected is controlled by the first valve 3. An overflow groove 11 is connected to the water tank 4. In this embodiment, the overflow groove 11 is located at the top of the water tank 4. Of course, in other embodiments, the overflow groove 11 can also be located at other positions such as the middle of the water tank 4. The part where the return pipe 2 and the water tank 4 are connected is located below the overflow groove 11. In this embodiment, an extension portion 6 extending and bending outward is provided on the top of the water tank 4. The space surrounded by the extension portion 6 is the overflow groove 11. The top view structure of the extension portion 6 is circular or polygonal, such as square. Since the extension portion 6 extends to the outside of the water tank 4, the distance between the left and right inner sides of the overflow groove 11 in the figure is greater than the distance between the left and right inner sides of the water storage cavity 12 located below the overflow groove 11 in the water tank 4.

[0029] The recovery tank 7 is located at the lower right of the overflow tank 11, and the overflow pipe 8 is connected between the overflow tank 11 and the recovery tank 7. The left end of the overflow pipe 8 is connected to the bottom of the overflow tank 11, and the right end of the overflow pipe 8 is connected to the recovery tank 7.

[0030] In addition, the bottom of the water storage tank 4 is also connected to a drain pipe (not shown in the figure), through which the liquid in the water storage chamber 12 can be discharged, and a second valve is provided on the drain pipe.

[0031] Therefore, as the cleaning box 1 cleans the aluminum material, the cleaning water in the cleaning box 1 contains more oil and dirt, and the oil and dirt in the cleaning water in the cleaning box 1 need to be cleaned. At this time, the cleaning of the aluminum material is stopped, and the first valve 3 is opened. The cleaning water in the cleaning box 1 is put into the water storage tank 4 through the reflux pipe 2. Since the cleaning box 1 is located above the water storage tank 4, the liquid can automatically flow downward under the action of its own gravity.

[0032] As the cleaning water continues to flow into the water tank 4, the liquid level in the water storage chamber 12 of the water tank 4 continues to rise. At the same time, since the density of oil is less than the density of water, the oil is located above the liquid level. When the liquid level rises to the height of the overflow tank 11, the oil on the liquid surface flows around, and then flows to the overflow tank 11, and is introduced into the recovery tank 7 through the overflow pipe 8, so that the oil overflows automatically, and the oil is collected in the recovery tank 7, and then the oil in the recovery tank 7 can be treated uniformly in a targeted manner. In this way, the oil in the liquid remaining in the water storage chamber 12 will be greatly reduced. Then open the second valve, and discharge the remaining cleaning water in the water tank 4 through the drain pipe for reuse.

[0033] Example 2

[0034] This embodiment is further improved on the basis of the embodiment 1. In this embodiment, a water supply pipe 9 is connected to the water storage tank 4. One end of the water supply pipe 9 away from the water storage tank 4 is connected to a water source. The connection part between the water supply pipe 9 and the water storage tank 4 is located below the overflow tank 11. A third valve 10 is provided on the water supply pipe 9. A pump is connected to the water supply pipe 9.

[0035] When the cleaning water in the cleaning tank 1 is drained, the cleaning water in the water storage tank 4 will no longer increase. If there is still oil on the surface of the cleaning water retained in the water storage tank 4, the oil cannot overflow and be collected because there is no cleaning water to replenish the water storage tank 4. For this reason, the third valve 10 is opened and the pump is started. The opening method of the third valve 10 and the pump can be manual. The water in the water source enters the water storage tank 4 through the water replenishment pipe 9, so as to continue to replenish water into the water storage tank 4, so that the oil on the surface of the liquid in the water storage tank 4 continues to overflow into the overflow tank 11, and is collected into the recovery tank 7 through the overflow pipe 8, so as to ensure the quality of oil recovery in the cleaning water and make the separation of oil on the surface of the cleaning water more thorough.

[0036] Example 3

[0037] This embodiment is further improved on the basis of embodiment 2, and a liquid level meter 5 is provided inside the water storage tank 4, and the liquid level meter 5 is used to detect the liquid level at the bottom of the overflow tank 11. The system also includes a controller, which is electrically connected to the liquid level meter 5 (such as a capacitive liquid level sensor or a resistive liquid level sensor), the valve and the pump. The third valve 10 is a pneumatic valve or an electrically controlled valve. The controller in this embodiment can be a PLC control system or a single-chip microcomputer (such as STC89C52RC model or AT89S52 model).

[0038] Therefore, when the liquid level meter 5 detects that the liquid level on the surface of the water tank 4 becomes low (the liquid level is lower than the bottom of the overflow tank 11), it means that there is no liquid in the cleaning tank 1 to be replenished in the water tank 4. At this time, the liquid level meter 5 transmits a signal to the controller. After receiving the signal, the controller makes an instruction to control the third valve 10 and the pump respectively, so that the third valve 10 is opened and the pump is started. The water in the water source enters the water tank 4 through the water supply pipe 9 under the action of the pump, thereby automatically replenishing water in the water tank 4 and continuing to collect and separate the oil on the surface of the liquid in the water tank 4. Compared with Example 2, there is no need to manually control the pump and the third valve 10, and the operation is simple and convenient.

[0039] Example 4

[0040] Combination Figure 2As shown, the bottom of the water tank 4 is set to be conical, and a drain pipe 14 is connected to the bottom of the water tank 4, and a drain valve 13 is provided on the drain pipe 14. In this way, for some precipitated impurities (such as metal chips) in the water tank 4, after the cleaning water in the water tank 4 is discharged through the drain pipe, the drain valve 13 is opened, and the precipitated impurities can flow out vertically through the drain pipe 14, thereby cleaning the impurities in the water tank 4 and reducing the accumulation of solid impurities at the bottom of the water tank 4.

[0041] Example 5

[0042] Combination Figure 3 As shown, the bottom surface of the overflow groove 11 is inclined, and the end of the bottom surface of the overflow groove 11 away from the water storage chamber 12 of the water tank 4 is the lower end, so that the oil on the liquid surface at the top of the water tank 4 flows downward along the bottom surface of the overflow groove 11. The oil enters the overflow groove 11 and will not flow back into the water storage chamber 12 of the water tank 4, thereby ensuring the unidirectional flow of the oil, thereby ensuring the treatment effect of the oil.

[0043] Example 6

[0044] This embodiment is a further improvement on the embodiment 5, in which a vertical scraper (not shown in the figure) is provided in the overflow trough 11 (circular overflow trough 11), the bottom of the scraper is adapted to the shape of the inner wall of the overflow trough, and a motor (not shown in the figure) for driving the scraper to move is provided on the outside of the top of the water storage tank 4, the motor is located above the top of the water storage tank, and a vertical rotating shaft is connected to the motor, the rotating shaft is coaxial with the overflow trough 11, and the rotating shaft is connected to the scraper. In this way, after the overflow trough 11 is not replenished with liquid, the motor is started, the motor drives the vertical rotating shaft to rotate, and the rotating shaft drives the scraper to rotate around the inner wall of the overflow trough 11 in the overflow trough 11, so as to scrape the liquid in the overflow trough to the inlet of the overflow pipe 8, so as to avoid oil stains remaining after the overflow trough 11 is not replenished with new liquid, so that the oil stains in the overflow trough 11 can be treated more cleanly.

[0045] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Oil pollution automatic overflow water-saving circulation system, characterized by: It includes a cleaning box, a water storage tank, an overflow pipe and a recovery tank; the water storage tank is located below the cleaning box, a return pipe is connected between the water storage tank and the cleaning box, an overflow tank is connected to the water storage tank, and the overflow pipe is connected between the overflow tank and the recovery tank.

2. The oil pollution automatic overflow water-saving circulation system according to claim 1 is characterized by: The water storage tank is connected with a water supply pipe, one end of the water supply pipe away from the water storage tank is connected with a water source, the connection part between the water supply pipe and the water storage tank is located below the overflow tank, and a valve is arranged on the water supply pipe.

3. The oil pollution automatic overflow water-saving circulation system according to claim 1 is characterized by: The overflow trough is located around the water storage tank.

4. The oil pollution automatic overflow water-saving circulation system according to claim 3 is characterized by: An extension portion extending outward is fixedly provided on the top of the water storage tank, and the overflow trough is a space surrounded by the extension portion.

5. The oil pollution automatic overflow water-saving circulation system according to claim 4 is characterized by: The top view cross section of the extension portion is polygonal or circular.

6. The oil pollution automatic overflow water-saving circulation system according to claim 2 is characterized by: A liquid level meter is arranged inside the water storage tank.

7. The oil pollution automatic overflow water-saving circulation system according to claim 6 is characterized by: It also includes a controller and a pump, wherein the controller is electrically connected to the liquid level meter, the valve and the pump respectively.

8. The oil pollution automatic overflow water-saving circulation system according to claim 1 is characterized by: A spray pipe is arranged in the cleaning box.

9. The oil pollution automatic overflow water-saving circulation system according to claim 2 is characterized by: The valve is a pneumatic valve or an electrically controlled valve.

10. The oil pollution automatic overflow water-saving circulation system according to claim 1 is characterized by: The reflux pipe is provided with a valve.

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