Aerodynamic backflow device for cutting fluid and working method thereof

Abstract

A pneumatic cutting fluid recirculation device and its working method belong to the field of cutting fluid recycling technology. The outer casing has an air inlet pipe, an air outlet, a water inlet pipe, and a water return port. Inside, there is a demister and a guide pipe. The feed end of the guide pipe is connected to the air inlet and water inlet pipes, and the discharge end is connected to the demister. The demister is connected to both the water return port and the air outlet. The method is as follows: High-pressure air enters the outer casing to generate negative pressure; this negative pressure creates suction at the water inlet pipe, drawing residual cutting fluid from the chip cart into a filter tank; the cutting fluid is drawn into the guide pipe through the water inlet pipe; the cutting fluid is discharged into the demister through the guide pipe; the oil mist is filtered by filter cotton to separate the gas and liquid, allowing the gas to be discharged; the filtered cutting fluid is returned to the machine tool through the water return pipe. This invention can separate iron filings from cutting fluid and recycle them back into the machine tool for reuse, eliminating environmental pollution from waste fluid discharge and reducing economic losses caused by cutting fluid waste.

Description

Technical Field

[0001] This invention relates to a pneumatic reflux device for cutting fluid and its working method, belonging to the field of cutting fluid recovery technology. Background Technology

[0002] During the processing of mechanical products, a large amount of cutting fluid is discharged into the scrap car along with the scrap. The recycling of the cutting fluid is extremely inconvenient, which ultimately leads to a large amount of waste liquid discharge, seriously damaging the interests of enterprises and increasing the burden on the environment.

[0003] Traditional methods of recovering cutting fluid rely on gravity for direct discharge, which is extremely inefficient and incomplete, leaving a lot of residue. If a dedicated oil pump is used for extraction, the cost of using and maintaining the pump is high, and it is difficult to equip every piece of equipment with an oil pump. Summary of the Invention

[0004] To address the problems existing in the background art, the present invention provides a cutting fluid pneumatic reflux device and its working method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cutting fluid pneumatic return device, comprising an outer shell, an air inlet pipe, a water inlet pipe, a guide pipe, a demister chamber, and a return water pipe; the upper two sides of the outer shell are respectively the air inlet pipe and the air outlet, and the lower two sides of the outer shell are respectively the water inlet pipe and the return water outlet, the air inlet pipe and the water inlet pipe are correspondingly arranged, and the return water outlet and the air outlet are correspondingly arranged; the air inlet pipe is connected to the workshop air source; the water inlet pipe is connected to the drain end of the scrap car, and the return water outlet is connected to the return water pipe; the outer shell is provided with a demister chamber and a guide pipe, the feed end of the guide pipe is connected to the air outlet end of the air inlet pipe and the water outlet end of the water inlet pipe, the discharge end of the guide pipe is connected to the demister chamber, and the demister chamber is connected to both the return water outlet and the air outlet.

[0006] A filter cylinder is installed between the water inlet pipe and the scrap car.

[0007] The air intake pipe is equipped with an air intake flow regulating valve.

[0008] The air outlet is equipped with filter cotton.

[0009] A partition is fixed inside the demisting chamber, and the partition is configured to correspond to the discharge end of the guide pipe.

[0010] The present invention provides a method for operating a cutting fluid pneumatic reflux device, the method comprising the following steps:

[0011] S1: Open the intake flow regulating valve, and high-pressure air enters the outer casing through the intake pipe, creating negative pressure inside the outer casing.

[0012] S2: Negative pressure creates suction at the water inlet pipe, drawing the residual cutting fluid from the scrap car into the filter bucket;

[0013] S3: The cutting fluid is drawn into the guide pipe through the inlet pipe;

[0014] S4: The cutting fluid is discharged into the demister chamber through the guide pipe;

[0015] S5: After the oil mist is filtered by the filter cotton, the gas and liquid are separated, and the gas is discharged.

[0016] S6: The filtered cutting fluid is returned to the machine tool through the return pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention has a simple structure and integrates functions such as extraction, filtration, demisting, noise reduction, and discharge. It can quickly and stably separate iron filings from cutting fluid and recycle the cutting fluid back into the machine tool for reuse. It is low-cost, highly efficient, ensures the recycling of cutting fluid, eliminates environmental pollution caused by waste fluid discharge, and reduces economic losses caused by cutting fluid waste. Attached Figure Description

[0019] Figure 1 This is a reference diagram showing the usage state of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention;

[0021] Figure 3 yes Figure 2 The main view. Detailed Implementation

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

[0023] A cutting fluid pneumatic return device includes a housing 1, an air inlet pipe 2, a water inlet pipe 8, a guide pipe 9, a demister chamber 10, and a return water pipe 27. The upper two sides of the housing 1 are respectively the air inlet pipe 2 and the air outlet 3, and the lower two sides of the housing 1 are respectively the water inlet pipe 8 and the return water outlet 12. The air inlet pipe 2 and the water inlet pipe 8 are correspondingly arranged, and the return water outlet 12 and the air outlet 3 are correspondingly arranged. The air inlet pipe 2 is connected to a workshop air source. The water inlet pipe 8 is connected to the drain end of a scrap car 21, and the return water outlet 12 is connected to the return water pipe 27. The housing 1 contains a demister chamber 10 and a guide pipe 9. The feed end of the guide pipe 9 is connected to the air outlet end of the air inlet pipe 2 and the water outlet end of the water inlet pipe 8, and the discharge end of the guide pipe 9 is connected to the demister chamber 10. The demister chamber 10 is connected to the return water outlet 12 and the air outlet 3.

[0024] A filter cylinder 24 is provided between the water inlet pipe 8 and the scrap car 21.

[0025] The intake pipe 2 is equipped with an intake flow regulating valve 7.

[0026] The air outlet 3 is provided with filter cotton 4, which is pressed and fixed by the air outlet cover plate 5. The air outlet cover plate 5 is fixedly connected to the outer shell 1 by the air outlet screw 6.

[0027] A baffle 11 is fixed inside the demister chamber 10, and the baffle 11 is correspondingly arranged at the discharge end of the guide pipe 9. The baffle 11 buffers the flow and minimizes the atomization of the cutting fluid.

[0028] The present invention provides a method for operating a cutting fluid pneumatic reflux device, the method comprising the following steps:

[0029] S1: Open the intake flow regulating valve 7, and high-pressure air enters the outer shell 1 through the intake pipe 2, generating negative pressure inside the outer shell 1.

[0030] S2: Negative pressure causes suction at the water inlet pipe 8, drawing the residual cutting fluid in the scrap car 21 into the filter bucket 24;

[0031] S3: The cutting fluid is drawn into the guide pipe 9 through the water inlet pipe 8;

[0032] S4: The cutting fluid is discharged into the demister chamber 10 through the guide pipe 9;

[0033] S5: After the oil mist is filtered by filter cotton 4, the gas and liquid are separated, and the gas is discharged.

[0034] S6: The filtered cutting fluid is discharged back into the machine tool through the return pipe 27.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cutting fluid pneumatic reflux device, characterized in that: It includes an outer shell (1), an air inlet pipe (2), a water inlet pipe (8), a guide pipe (9), a demisting chamber (10), and a return water pipe (27); the upper two sides of the outer shell (1) are the air inlet pipe (2) and the air outlet (3), respectively, and the lower two sides of the outer shell (1) are the water inlet pipe (8) and the return water outlet (12), respectively. The air inlet pipe (2) and the water inlet pipe (8) are respectively arranged correspondingly, and the return water outlet (12) and the air outlet (3) are respectively arranged correspondingly. The air inlet pipe (2) is connected to the workshop air source. The water inlet pipe (8) is connected to the drain end of the scrap car (21), and the return water outlet (12) is connected to the return water pipe (27). The outer shell (1) is equipped with a demisting chamber. The silo (10) and the guide pipe (9) are connected. The feed end of the guide pipe (9) is connected to the air outlet end of the air inlet pipe (2) and the water outlet end of the water inlet pipe (8). The discharge end of the guide pipe (9) is connected to the demister silo (10). The demister silo (10) is connected to the return water port (12) and the air outlet (3). A filter barrel (24) is provided between the water inlet pipe (8) and the scrap car (21). An air inlet flow regulating valve (7) is provided on the air inlet pipe (2). A filter cotton (4) is provided on the air outlet (3). A partition (11) is fixed inside the demister silo (10). The partition (11) is correspondingly set to the discharge end of the guide pipe (9).

2. A method for operating the cutting fluid pneumatic reflux device according to claim 1, characterized in that: The method includes the following steps: S1: Open the intake flow regulating valve (7), and high-pressure air enters the outer shell (1) through the intake pipe (2), generating negative pressure inside the outer shell (1); S2: The negative pressure causes suction at the water inlet pipe (8), which draws the residual cutting fluid in the scrap car (21) into the filter bucket (24); S3: The cutting fluid is drawn into the guide pipe (9) through the water inlet pipe (8); S4: The cutting fluid is discharged into the demister (10) through the guide pipe (9); S5: After the oil mist is filtered by the filter cotton (4), the gas and liquid are separated, and the gas is discharged; S6: The filtered cutting fluid is discharged back into the machine tool through the return pipe (27).

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