Oil-water separation system and recycling method based on machine tool cutting fluid

Abstract

The application relates to the technical field of cutting fluid treatment, in particular to an oil-water separation system and a recycling method based on machine cutting fluid, which comprises a base and a treatment box fixedly connected to the top of the base, one side of the treatment box is fixedly connected with a liquid inlet pipe, the other side of the treatment box is fixedly connected with a liquid outlet pipe, a rotating rod is rotatably connected in the base, a plurality of agent storage boxes are fixedly connected to the bottom of the base, a plurality of top boxes are slidably connected in the base, a plurality of filter screens are arranged in the treatment box, a plurality of convex handle stems are fixedly connected to the bottom of the rotating rod, a collecting assembly for collecting iron scraps on the top surface of the filter screen is arranged in the treatment box, and a driving assembly for driving the top box to abut against the filter screen to lift the filter screen is arranged in the base. The cutting fluid is subjected to the centrifugal force through rotary stirring, the iron scraps move to the inner wall of the treatment box, then fall onto the surface of the filter screen, preliminary separation from the cutting fluid is realized, and then the collecting assembly automatically collects the filter screen and the iron scraps thereon.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting fluid processing, in particular to an oil-water separation system and recycling method based on machine tool cutting fluid. BACKGROUND

[0002] In the mechanical processing industry, cutting fluid is an indispensable industrial medium, and its main functions include reducing cutting temperature, reducing cutting force, cleaning the processing surface, and improving the surface quality of the processed parts. However, with the continuous use of cutting fluid, it will be contaminated by metal particles, oil stains and other impurities, resulting in performance degradation, and even adversely affecting the processing equipment and product quality. Therefore, the oil-water separation technology and recycling method of cutting fluid is particularly important.

[0003] As prior art publication No. CN115591277A, the application relates to the technical field of oil-water separation, and specifically relates to a cutting fluid oil-water separation system of a cooling water tank, a cutting fluid oil-water separation method of a cooling water tank, and a cooling water tank. The separation system comprises a horizontal reciprocating separation mechanism, a horizontal displacement mechanism and a cooling water tank; the horizontal reciprocating separation mechanism comprises a mounting frame, a floating frame, a connecting steel rope, an oil absorption paper, a paper transmission assembly and an oil absorption assembly; the mounting frame is in transmission connection with the horizontal displacement mechanism, and the length direction of the mounting frame is consistent with the width direction of the cooling water tank; the floating frame is arranged on the surface of the cutting fluid in the cooling water tank and is in transmission connection with the mounting frame through the connecting steel rope. The cutting fluid oil-water separation system provided by the application can continuously remove oil from the cutting fluid during equipment operation, which is beneficial to the rapid recycling of the cutting fluid, can improve the service life of the cutting fluid, reduce the maintenance frequency, and the oil absorption paper can be conveniently replaced and installed.

[0004] The above-mentioned prior art can continuously remove oil from the cutting fluid without stopping, which is beneficial to the rapid recycling of the cutting fluid, but in actual operation, a large amount of iron filings will inevitably be attached to the cutting fluid during processing. These iron filings enter the processing system together with the cutting fluid, and the above-mentioned prior art is difficult to effectively remove these iron filings while the machine tool is continuously running. The accumulation of iron filings not only affects the cleanliness and stability of the cutting fluid, but also can cause the blockage of the processing system, even damage the key equipment parts, thereby reducing the overall efficiency and service life of the system. At the same time, the internal structure of the cutting fluid will change after long-term use, such as reduced oil-water separation performance, weakened rust and corrosion resistance, etc. These changes will cause the cutting fluid to lose specific functions and affect recycling. Therefore, the present application provides an oil-water separation system and recycling method based on machine tool cutting fluid. SUMMARY

[0005] The present application aims to provide an oil-water separation system and recycling method based on machine tool cutting fluid to solve the problems in the background art.

[0006] To achieve the above object, the present application provides the following technical solution: an oil-water separation system based on machine tool cutting fluid, comprising a base and a treatment box fixedly connected to the top of the base, one side of the treatment box is fixedly connected with a liquid inlet pipe, the other side of the treatment box is fixedly connected with a liquid outlet pipe, a rotating rod is rotatably connected in the base, a plurality of storage boxes are fixedly connected to the bottom of the base, a plurality of top boxes are slidably connected in the base, the inside of the plurality of top boxes is respectively provided with an extraction assembly for sucking air from the storage boxes, a plurality of filter screens are arranged in the treatment box, the bottom of the rotating rod is fixedly connected with a plurality of convex handle, the inside of the treatment box is provided with a collection assembly for collecting iron filings on the top surface of the filter screen, the inside of the base is provided with a driving assembly adapted to the plurality of convex handle for driving the top box to abut against the filter screen to lift and lower.

[0007] Preferably, the driving assembly comprises a plurality of slide rods slidably connected in the base, one end of each of the plurality of slide rods close to the plurality of convex handle is rotatably connected with a ball abutting against the convex handle, the other end of each of the plurality of slide rods away from the plurality of convex handle is hingedly connected with a crank rotatably connected with the bottom of the top box.

[0008] Preferably, the extraction assembly comprises a piston plate slidably connected in the top box, the bottom of the piston plate is fixedly connected with a through pipe in communication with the storage box, the through pipe is slidably connected with the bottom of the top box, a plurality of discharge openings are uniformly formed in one side of the top box.

[0009] Preferably, the collection assembly comprises a collection chamber constructed in the treatment box, a plurality of multi-section magnetite are fixedly arranged in the collection chamber, a scrap chamber is fixedly connected to one side of the treatment box close to the collection chamber.

[0010] Preferably, one side of the filter screen is fixedly connected with an abutting plate, the top of the abutting plate is fixedly connected with a plurality of guide rods slidably connected with the treatment box, the top of the guide rod is fixedly connected with a second return spring, the top of the second return spring is fixedly connected with the inside of the treatment box.

[0011] Preferably, the outer surface of each of the plurality of slide rods is fixedly connected with a limiting block, one side of the limiting block is fixedly connected with a first return spring fixedly connected with the inside of the base.

[0012] Preferably, the outer surface of the rotating rod is uniformly fixedly connected with a plurality of stirring blades.

[0013] Preferably, the top of the treatment box is fixedly connected with a driving motor, the output end of the driving motor extends into the inside of the treatment box and is fixedly connected with the rotating rod.

[0014] The application discloses a method for recycling machining fluid by separating oil and water, which comprises the following steps.

[0015] S1, first, the machining fluid to be treated is poured into the inside of the treatment box through the liquid inlet pipe, and the machining fluid in the treatment box is stirred by rotating the rotating rod, so that the machining fluid is separated by centrifugal force;

[0016] S2, meanwhile, the iron filings in the machining fluid are moved to the inner wall of the treatment box under the action of the centrifugal force during the stirring, and finally fall on the surface of the filter screen, and the rotating rod continuously rotates to drive the multi-lobed handle at the bottom to rotate, when the multi-lobed handle rotates, the lobe on the outer surface drives the driving assembly to start, and at this time, the top box is pushed upwards, and the filter screen is lifted upwards to lift the debris upwards, and when the top box is completely lifted, the debris on the top surface of the filter screen is adsorbed by the collecting assembly;

[0017] S3, meanwhile, when the top box is lifted, the side of the filter screen is blocked, so that the debris on the filter screen is not scattered, thereby blocking the influence of the turbulent water flow in the treatment box, and when the top box is lifted, the extraction assembly in the top box is lowered relative to the lifting of the top box, so that a negative pressure is generated between the extraction assembly and the top box, the top box is filled with a demulsifying agent, the demulsifying agent sucked into the top box is discharged into the inside of the treatment box and mixed with the machining fluid, and the treatment efficiency is improved;

[0018] S4, after the treatment is completed, the treated machining fluid can be discharged through the liquid outlet pipe, so that the machining fluid is recycled.

[0019] Preferably, in the step S3, the inside of the agent storage box can store petroleum hydrocarbon compounds.

[0020] Compared with the prior art, the application has the following advantages:

[0021] 1. The rotating stirring design can make the machining fluid subjected to the centrifugal force, so that the iron filings and other debris are rapidly moved to the inner wall of the treatment box, and then fall on the surface of the filter screen, so that the preliminary separation from the machining fluid is realized, and then the multi-lobed handle and the ball interact with each other, the filter screen and the iron filings and debris thereon are automatically lifted to the vicinity of the multi-section magnetite through the transmission of the slide rod and the crank, and high-efficiency collection is realized, the top box blocks the debris falling chamber during the lifting process, and high-efficiency collection of the iron filings and debris can be realized in a limited space, the whole collection process is highly automated, can adapt to machining fluids of different concentrations and types, and iron filings and debris of different sizes and shapes, and has strong adaptability.

[0022] 2. The demulsifier is added automatically, and the demulsifier can be mixed with the cutting fluid rapidly, which helps to accelerate the process of oil-water separation in the cutting fluid, thereby improving the processing efficiency of the cutting fluid. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present application;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the processing tank in the present application;

[0026] Figure 4 It is a schematic diagram of the structure of the multi-lug handle in the present application;

[0027] Figure 5 It is an enlarged schematic diagram of the structure at A in the present application; Figure 4

[0028] Figure 6 It is a schematic diagram of the structure of the guide rod in the present application;

[0029] Figure 7 It is a schematic diagram of the structure of the processing tank and the base in the present application;

[0030] Figure 8 It is a schematic diagram of the structure of the multi-lug handle cooperating with the sliding rod in the present application;

[0031] Figure 9 It is a schematic diagram of the structure of the sliding rod and the top tank in the present application;

[0032] Figure 10 It is an exploded schematic diagram of the structure of the top tank and the piston plate in the present application;

[0033] Figure 11 It is a schematic diagram of the cross-sectional structure of the base in the present application.

[0034] In the figure: 100, base; 101, processing tank; 102, liquid inlet pipe; 103, liquid outlet pipe; 200, rotating rod; 201, driving motor; 202, multi-lug handle; 203, sliding rod; 204, limiting block; 205, first return spring; 206, ball; 207, crank; 208, top tank; 209, stirring blade; 300, abutting plate; 301, filter screen; 302, guide rod; 303, second return spring; 304, collection chamber; 305, chip falling chamber; 306, multi-section magnetite; 400, agent storage tank; 401, through pipe; 402, piston plate; 403, discharge port.​ Detailed Implementation

[0035] 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.

[0036] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 7 The present invention provides a technical solution: an oil-water separation system based on machine tool cutting fluid, including a base 100 and a processing tank 101 fixedly connected to its top. An inlet pipe 102 is fixedly connected to one side of the processing tank 101, and an outlet pipe 103 is fixedly connected to the other side of the processing tank 101. A rotating rod 200 is rotatably connected inside the base 100. Multiple storage tanks 400 are fixedly connected to the bottom of the base 100. Multiple filter screens 301 are provided inside the processing tank 101. A multi-protruding leaf stalk 202 is fixedly connected to the bottom of the rotating rod 200. A drive assembly adapted to the multi-protruding leaf stalk 202 is provided inside the base 100 for driving the top box 208 to rise and fall against the filter screens 301.

[0037] Please refer to Figure 4 , Figure 8 as well as Figure 9 The drive assembly includes multiple slide rods 203 slidably connected inside the base 100. Each slide rod 203 has a ball bearing 206 rotatably connected to one end near the multi-protruding leaf stalk 202. The ends of the slide rods 203 that are far apart from each other are respectively hinged to cranks 207 rotatably connected to the bottom of the top box 208. Limiting blocks 204 are fixedly connected to the outer surface of the slide rods 203. A first return spring 205 fixedly connected to the inside of the base 100 is fixedly connected to one side of the limiting block 204. The rotation of the multi-protruding leaf stalk 202 will push the multiple ball bearings 206 to move with it, thereby pushing the slide rods 203 to move, which will cause the crank 207 to tilt and push the top box 208 to move, so that the filter screen 301 rises and the iron filings move upward and separate.

[0038] Furthermore, a drive motor 201 is fixedly connected to the top of the processing tank 101. The output end of the drive motor 201 extends into the interior of the processing tank 101 and is fixedly connected to the rotating rod 200. Multiple stirring blades 209 are evenly fixedly connected to the outer surface of the rotating rod 200. The drive motor 201 drives the rotating rod 200 to rotate, causing the stirring blades 209 to rotate, thereby driving the cutting fluid in the processing tank 101 to rotate, so that the iron filings in the cutting fluid are better separated from the cutting fluid.

[0039] Further, please refer to Figure 3 , Figure 4 and Figure 5 , in order to further clean the iron filings, the inside of the treatment box 101 is provided with a collection assembly for collecting the iron filings on the top surface of the filter screen 301, the collection assembly comprises a collection chamber 304 arranged in the inside of the treatment box 101, a plurality of multi-section magnetite 306 are fixed in the inside of the collection chamber 304, a falling debris chamber 305 is fixedly connected to one side of the inside of the treatment box 101 close to the collection chamber 304, a contact plate 300 is fixedly connected to one side of the filter screen 301, a plurality of guide rods 302 which can be slidingly connected with the treatment box 101 are fixedly connected to the top of the contact plate 300, a second return spring 303 is fixedly connected to the top of the guide rod 302, and the top of the second return spring 303 is fixedly connected with the inside of the treatment box 101, wherein the multi-section magnetite 306 has high suction force and can effectively adsorb the iron filings, and the structure of the falling debris chamber 305 and the collection chamber 304 can keep the space in the collection chamber 304, thereby ensuring that the iron filings are stably adsorbed on the surface of the multi-section magnetite 306 and improving the collection efficiency.

[0040] Specifically, by driving the stirring blade 209 to rotate, the iron filings in the cutting fluid will move to the inner wall of the treatment box 101 under the action of centrifugal force during stirring, and finally fall onto the surface of the plurality of filter screens 301, at this time the rotating rod 200 continuously rotates to drive the multi-lobed handle 202 at the bottom to rotate with it, when the multi-lobed handle 202 rotates, the lobe on the outer surface will respectively abut against the plurality of balls 206 to drive the sliding rod 203 to move in the inside of the base 100, at this time the movement of the sliding rod 203 will drive one end of the crank 207 to move and push the top box 208 to move upwards, at this time the upward movement of the top box 208 will drive the contact plate 300 to move upwards and drive the filter screen 301 to move upwards, thereby driving the debris to move upwards with it, when the top box 208 is completely moved upwards, it will be close to the multi-section magnetite 306, so that the multi-section magnetite 306 adsorbs the debris on the top surface of the filter screen 301, wherein when the top box 208 moves upwards, it will block the falling debris chamber 305, so that the debris on the filter screen 301 will not be scattered, thereby blocking the turbulent water flow in the treatment box 101 from affecting it, thereby improving the collection efficiency.

[0041] In summary, through the design of rotary stirring, the cutting fluid is subjected to the action of centrifugal force, so that the iron filings and other debris are quickly moved to the inner wall of the treatment box 101, and then fall onto the surface of the filter screen 301, thereby achieving preliminary separation from the cutting fluid. Subsequently, the interaction of the multi-lug handle 202 and the ball 206, through the transmission of the slide rod 203 and the crank 207, automatically lifts the filter screen 301 and the iron filings and debris thereon to the vicinity of the multi-section magnetite 306, achieving efficient collection. The top box 208 blocks the debris falling chamber 305 during the rising process, enabling efficient collection of iron filings and debris in a limited space. The entire collection process is highly automated, can adapt to different concentrations and types of cutting fluid, as well as different sizes and shapes of iron filings and debris, and has strong adaptability.

[0042] Embodiment 2: please refer to Figure 8 、 Figure 9 and Figure 10 When the oil and water mixture in the cutting fluid is difficult to separate, in order to further improve the separation effect, the application also provides a technical solution: an oil-water separation system based on machine tool cutting fluid, a plurality of top boxes 208 are slidably connected inside the base 100, and the inside of the plurality of top boxes 208 is respectively provided with an extraction assembly for extracting gas from the inside of the agent storage tank 400. The extraction assembly includes a piston plate 402 slidably connected inside the top box 208, and the bottom of the piston plate 402 is fixedly connected with a through pipe 401 in communication with the agent storage tank 400. The through pipe 401 is slidably connected with the bottom of the top box 208, and a plurality of discharge ports 403 are uniformly formed on one side of the top box 208.

[0043] Specifically, when the top box 208 moves upward, the piston plate 402 inside it will move downward relative to its upward movement, thereby generating a negative pressure between the piston plate 402 and the top box 208, so that the through pipe 401 sucks the demulsifying agent from the inside of the agent storage tank 400. When the piston plate 402 is misaligned at the plurality of discharge ports 403, the demulsifying agent sucked into the top box 208 will be discharged into the inside of the treatment box 101 and mixed with the cutting fluid, improving its processing efficiency.

[0044] In summary, through the cooperation of the extraction assembly and the driving assembly, the demulsifying agent inside the top box 208 can be released when the top box 208 completely isolates the debris falling chamber 305, further separating the oil and water in the cutting agent inside the treatment box 101. The entire process does not require manual intervention, achieving automatic addition of the demulsifying agent. The demulsifying agent can quickly mix with the cutting fluid, which helps to speed up the process of oil and water separation in the cutting fluid, thereby improving the processing efficiency of the cutting fluid.

[0045] Embodiment 3: please refer to Figures 1 to 11 The application also provides a technical solution: a method for recycling and reusing oil-water separation based on machine tool cutting fluid, comprising the following steps:

[0046] S1, in use first to be processed through the liquid pipe 102 into the processing tank 101 inside the cutting fluid, at this time by operating the drive motor 201 and then drive the rotation of the rod 200 to drive a plurality of stirring blade 209 rotation, and then the processing tank 101 in the cutting fluid is stirred to make it by centrifugal force and separation;

[0047] S2, while stirring blade 209 in the stirring of the cutting fluid in the iron will be affected by the centrifugal force to the inner wall of the processing tank 101 direction of movement, eventually falling on the surface of the plurality of filter screen 301, at this time the rod 200 continues to rotate will drive its bottom of the multi-leaf handle 202 with the same rotation, when the multi-leaf handle 202 rotation will the outer surface of the leaf will be respectively with a plurality of ball 206 to touch to drive the slide bar 203 in the base 100 inside the movement, at this time the slide bar 203 movement will drive the crank 207 one end of the movement to push the top box 208 up, at this time the top box 208 up will drive the contact plate 300 up to drive the filter screen 301 up to drive the debris with the same up, when the top box 208 completely up will be close to the multi-section magnetite 306 to make the multi-section magnetite 306 adsorbed on the top of the filter screen 301 debris;

[0048] S3, while the top box 208 up will block the falling chip chamber 305, so that the filter screen 301 on the debris will not be scattered, so as to block the processing tank 101 in the turbulent water flow effect, when the top box 208 in the up inside the piston plate 402 will be relative to the up down, so that the piston plate 402 and the top box 208 between the negative pressure, so that the pipe 401 from the inside of the storage tank 400 suction demulsifier, and when the piston plate 402 misalignment to the plurality of exhaust 403, suction to the top box 208 of the demulsifier will be discharged to the inside of the processing tank 101 and cutting fluid mixing, improve its processing efficiency;

[0049] S4, when the processing is completed, can be communicated with the liquid outlet pipe 103, so as to utilize the treated cutting fluid, so as to realize the recycling.

[0050] Preferably, in step S3, the inside of the storage tank 400 can store petroleum hydrocarbon compounds, wherein the storage tank 400 can change the inside storage material according to the filtering purpose of the required cutting fluid.

[0051] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0052] While the embodiments of the application have been shown and described herein, it is to be understood that the scope of the application, jointly pointed out in the appended claims, is not to be limited to the above-described embodiments but can be otherwise variously changed, modified, replaced, and altered within the principles and spirit of the present application.

Claims

1. An oil-water separation system based on machine tool cutting fluid, comprising a base (100) and a processing tank (101) fixedly connected to its top, wherein an inlet pipe (102) is fixedly connected to one side of the processing tank (101) and an outlet pipe (103) is fixedly connected to the other side of the processing tank (101), characterized in that: The base (100) is rotatably connected to a rotating rod (200), and multiple storage tanks (400) are fixedly connected to the bottom of the base (100). Multiple top boxes (208) are slidably connected to the inside of the base (100). Each of the multiple top boxes (208) is provided with an extraction component for drawing air from the storage tank (400). Multiple filters (301) are provided inside the processing box (101). A multi-protruding leaf stalk (202) is fixedly connected to the bottom of the rotating rod (200). A collection component for collecting iron filings on the top surface of the filter (301) is provided inside the processing box (101). A drive component adapted to the multi-protruding leaf stalk (202) is provided inside the base (100) for driving the top box (208) to rise and fall against the filter (301). The drive assembly includes multiple slide rods (203) slidably connected inside the base (100). Each of the multiple slide rods (203) is rotatably connected to a ball bearing (206) that abuts against the multi-convex leaf stalk (202) at one end. Each of the multiple slide rods (203) is hinged to a crank (207) that is rotatably connected to the bottom of the top box (208) at one end away from each other. The extraction assembly includes a piston plate (402) slidably connected inside the top box (208). The bottom of the piston plate (402) is fixedly connected to a pipe (401) communicating with the storage tank (400). The pipe (401) is slidably connected to the bottom of the top box (208). A plurality of outlets (403) are evenly opened on one side of the top box (208). The collection assembly includes a collection chamber (304) constructed inside the processing box (101), and a plurality of multi-section magnets (306) are fixed inside the collection chamber (304). A chip chamber (305) is fixedly connected inside the processing box (101) and on the side near the collection chamber (304).

2. The oil-water separation system based on machine tool cutting fluid according to claim 1, characterized in that: A contact plate (300) is fixedly connected to one side of the filter (301), and a plurality of guide rods (302) that can be slidably connected to the top of the contact plate (300) are fixedly connected to the top of the processing box (101). A second return spring (303) is fixedly connected to the top of the guide rod (302), and the top of the second return spring (303) is fixedly connected to the inside of the processing box (101).

3. The oil-water separation system based on machine tool cutting fluid according to claim 1, characterized in that: A limiting block (204) is fixedly connected to the outer surface of a plurality of sliding rods (203), and a first return spring (205) fixedly connected to the inside of the base (100) is fixedly connected to one side of the limiting block (204).

4. The oil-water separation system based on machine tool cutting fluid according to claim 1, characterized in that: Multiple stirring blades (209) are uniformly fixedly connected to the outer surface of the rotating rod (200).

5. The oil-water separation system based on machine tool cutting fluid according to claim 1, characterized in that: A drive motor (201) is fixedly connected to the top of the processing box (101), and the output end of the drive motor (201) extends into the interior of the processing box (101) and is fixedly connected to the rotating rod (200).

6. A method for oil-water separation and recycling based on machine tool cutting fluid, wherein the oil-water separation system based on machine tool cutting fluid according to any one of claims 1-5 is characterized in that, Includes the following steps: S1. When in use, the cutting fluid to be treated is first poured into the inside of the treatment tank (101) through the inlet pipe (102). At this time, the cutting fluid in the treatment tank (101) is stirred by rotating the control rod (200) so that it is separated by centrifugal force. S2. At the same time, during the stirring, the iron filings in the cutting fluid will be moved towards the inner wall of the processing tank (101) under the action of centrifugal force, and finally fall onto the surface of multiple filter screens (301). At this time, the rotating rod (200) will continue to rotate, which will drive the multi-convex blade (202) at its bottom to rotate together. When the multi-convex blade (202) rotates, the convex blades on the outer surface will drive the drive assembly to start. At this time, the top box (208) will be pushed up. At this time, the top box (208) will move up, which will drive the filter screen (301) to move up, thereby driving the debris to move up with it. When the top box (208) is completely moved up, the debris on the top surface of the filter screen (301) will be adsorbed by the collection assembly. S3. At the same time, when the top box (208) moves upward, it will block one side of the filter screen (301), so that the debris on the filter screen (301) will not be scattered, thereby blocking the turbulent water flow in the treatment box (101). When the top box (208) moves upward, the extraction component inside it will move downward relative to its upward movement, thereby creating a negative pressure between the extraction component and the top box (208), so that the top box (208) is filled with demulsifier. The demulsifier drawn into the top box (208) will be discharged into the interior of the treatment box (101) and mixed with the cutting fluid to improve its processing efficiency. S4. After the treatment is completed, the treated cutting fluid can be recycled by connecting it to the outlet pipe (103).

7. The method for oil-water separation and recycling based on machine tool cutting fluid according to claim 6, characterized in that: In step S3, the interior of the storage tank (400) can store petroleum hydrocarbon compounds.

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