An oil-water separator for cutting fluid recovery

By designing a combination of a vibrating filter and an oil-water separator, the problem of metal debris residue in the cutting fluid recovery device was solved, achieving efficient oil-water separation and resource recovery, reducing maintenance costs and supporting flexible device relocation.

CN224442299UActive Publication Date: 2026-07-03HUBEI YINUO NEW MATERIAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI YINUO NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing cutting fluid recovery devices are prone to leaving metal shavings, which affects oil-water separation efficiency and has high maintenance costs. They also lack automated shavings separation and anti-clogging structures.

Method used

An oil-water separation device for cutting fluid recovery was designed. It initially separates solids and liquids through a filter screen, and uses fan blades to drive the rotating shaft to drive the drive rod to vibrate the filter screen, collect metal debris, and achieve oil-water separation through an oil suction plate and an oil-water separator. The bottom wheels make the device movable.

Benefits of technology

It achieves efficient collection of metal scrap and continuous separation of oil and water, reduces maintenance costs, improves separation efficiency, and supports flexible movement of the unit in different areas.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224442299U_ABST
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Abstract

This utility model relates to the field of cutting fluid recycling technology and discloses an oil-water separation device for cutting fluid recycling. The novel design uses a partition inside the processing tank to divide the internal space. The cutting fluid first enters the processing tank on the left, where it undergoes preliminary solid-liquid separation through a filter screen, trapping impurities. The filtered liquid impacts the fan blades, driving the rotating shaft to rotate. This causes the drive block to rotate and periodically push the drive rod, which then periodically moves up and down, pushing the filter screen upwards. This causes the filter screen to vibrate, causing the trapped metal debris to slide into a collection frame for centralized recycling. This facilitates the collection and processing of metal debris inside the processing tank by workers at any time. The bottom of the processing tank is fixedly connected to four wheels, allowing the entire device to be moved flexibly, facilitating transfer between different work areas and adapting to workshop layout adjustments or maintenance needs.
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Description

Technical Field

[0001] This utility model belongs to the field of cutting fluid recycling technology, specifically an oil-water separation device for cutting fluid recycling. Background Technology

[0002] In the field of machining, cutting fluid is widely used, but its recycling and treatment has always been a challenge due to the mixture of metal shavings, grease, and coolant. Currently, most oil-water separation devices tend to leave metal shavings inside the device during processing, which are difficult to remove completely. This not only affects the oil-water separation efficiency but also leads to the waste of recyclable metal shavings. While some devices are designed with shavings collection functions, they often lack automated shavings separation and anti-clogging structures, resulting in high maintenance costs and long downtime. Therefore, improvements are needed to address the current situation. Utility Model Content

[0003] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides an oil-water separation device for cutting fluid recovery. This effectively solves the problem that while cutting fluid is widely used in the machining field, its recovery and treatment have always been a challenge due to the mixture of metal shavings, grease, and coolant within it. Currently, most oil-water separation devices tend to leave metal shavings inside the device during processing, which are difficult to remove completely. This not only affects the oil-water separation efficiency but also leads to the waste of recyclable metal shavings. Furthermore, while some devices are designed with shavings collection functions, they often lack automated shavings separation and anti-clogging structures, resulting in high maintenance costs and long downtime.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil-water separation device for recovering cutting fluid, comprising a processing tank, a partition, and a processing tank. The partition is uniformly connected to the interior of the processing tank. The processing tank is located on the left side of the processing tank. Mounting plates are uniformly connected to the interior of the processing tank. A filter screen is connected to the interior of the mounting plates. A rotating shaft is connected to the interior of the processing tank. Fan blades are connected to the outer wall of the rotating shaft. Drive blocks are connected to both sides of the outer wall of the rotating shaft. Drive rods are connected to both sides of the interior of the mounting plates. A collection frame is connected to the interior of the processing tank. A return trough is provided inside the processing tank and connected to the processing tank.

[0005] Preferably, a stabilizing rod is connected to both the top of the filter screen and the interior of the mounting plate. One end of the left-side stabilizing rod is located inside the mounting plate, and the right-side stabilizing rod penetrates the body of the filter screen. Springs are provided inside the mounting plate and on the outer wall of the right-side stabilizing rod, and the left-side spring is connected to the left-side stabilizing rod.

[0006] Preferably, a screen is connected to the inside of the bottom wall of the collection frame, and the screen is located in the return trough.

[0007] Preferably, pulleys are connected to both sides of the outer wall of the two drive rods, and sliding grooves are provided on both sides of the inner wall of the mounting plate, with the pulleys on both sides contacting the inner wall of the sliding grooves.

[0008] Preferably, the processing tank is equipped with a waste oil storage tank, and a cutting fluid storage tank is provided on the right side of the processing tank. An oil suction plate is provided inside the waste oil storage tank, and a float plate is connected to the outer wall of the oil suction plate. An oil suction trough is provided inside the oil suction plate. An oil-water separator is installed on the top of the processing tank. A pump suction hose is connected to the left side of the oil-water separator and is connected to the oil suction trough. Diverter pipes are connected to both sides of the outer wall of the oil-water separator, with one end of each diverter pipe located inside the cutting fluid storage tank. An outlet pipe is connected to the front side of both the waste oil storage tank and the cutting fluid storage tank.

[0009] Preferably, the bottom of the processing box is connected to four wheels.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The internal space of the processing tank is divided by partitions. The cutting fluid first enters the processing tank on the left and undergoes preliminary solid-liquid separation through the filter screen, where impurities are trapped. The filtered liquid impacts the fan blades, causing the shaft to rotate. This causes the drive block to rotate and periodically push the drive rod, which then periodically moves up and down and pushes the filter screen upwards. This causes the filter screen to vibrate, prompting the trapped metal debris to slide into the collection frame for centralized recycling. This allows staff to collect and process the metal debris inside the processing tank at any time.

[0012] 2. After the cutting fluid is filtered through the filter screen in the treatment tank, the oil-water mixture enters the treatment tank. Due to the density difference between oil and water, the oil layer floats to the top and is adsorbed by the oil suction plate. The oil suction plate floats on the liquid surface with the change of oil layer height through the float plate. The oil-water separator first draws the oil floating on the top surface of the oil and water from the treatment tank through the pump suction hose. After the liquid passes through the oil-water separator, the separated clean oil and cutting fluid flow back to the waste oil storage tank and the cutting fluid storage tank through the two side diversion pipes for recycling, realizing continuous and efficient oil-water separation and resource recovery.

[0013] 3. The bottom of the processing box is fixedly connected to four wheels at all four ends. The wheels allow the entire device to be moved flexibly, making it easy to move between different work areas (such as next to machine tools or centralized recycling points) and adapt to workshop layout adjustments or maintenance needs. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the floating plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the filter screen structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the drive block structure of this utility model.

[0020] In the diagram: 100, processing box; 200, partition plate; 201, processing tank; 202, mounting plate; 203, filter screen; 204, rotating shaft; 205, fan blade; 206, drive block; 207, drive rod; 208, collection frame; 209, return trough; 210, stabilizer bar; 211, spring; 212, screen; 213, pulley; 214, chute; 300, waste oil storage tank; 301, cutting fluid storage tank; 302, oil suction plate; 303, float plate; 304, oil suction trough; 305, oil-water separator; 306, pump suction hose; 307, diversion pipe; 308, liquid outlet pipe; 309, bottom wheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4An oil-water separation device for cutting fluid recovery includes a processing tank 100, a partition 200, and a processing tank 201. The partition 200 is uniformly and fixedly connected to the interior of the processing tank 100. The processing tank 201 is located on the left side of the processing tank 100. Mounting plates 202 are uniformly and fixedly connected to the interior of the processing tank 201. A filter screen 203 is movably connected to the interior of the mounting plate 202. A rotating shaft 204 is rotatably connected to the interior of the processing tank 201. Fan blades 205 are fixedly connected to the outer wall of the rotating shaft 204. Both sides of the wall are fixedly connected to drive blocks 206, and both sides of the mounting plate 202 are movably connected to drive rods 207. A collection frame 208 is movably connected inside the processing box 100. A return channel 209 is opened inside the processing box 100 and is connected to the processing tank 201. The partition 200 inside the processing box 100 divides the internal space. The cutting fluid first enters the processing tank 201 on the left and undergoes preliminary solid-liquid separation through the filter screen 203. Impurities are trapped on the filter screen 203. The filtered liquid impacts the fan blades 205, which drive the rotating shaft 204 to rotate, causing the drive blocks 206 to rotate and periodically push the drive rods 207. This causes the drive rods 207 to move up and down periodically and push the filter screen 203 upward, causing the filter screen 203 to vibrate. This causes the trapped metal debris to slide into the collection frame 208 for centralized collection, making it convenient for staff to collect and process the metal debris inside the processing box 100 at any time.

[0023] Stabilizing rods 210 are fixedly connected to the top of the filter screen 203 and the inside of the mounting plate 202. One end of the left stabilizing rod 210 is located inside the mounting plate 202, and the right stabilizing rod 210 passes through the body of the filter screen 203. Springs 211 are provided inside the mounting plate 202 and on the outer wall of the right stabilizing rod 210. The left spring 211 is connected to the left stabilizing rod 210, thereby controlling the vibration speed of the filter screen 203.

[0024] A screen 212 is fixedly connected to the inside of the bottom wall of the collection frame 208. The screen 212 is located in the return channel 209, so that the oil and water flowing into the collection frame 208 can flow back to the inside of the processing tank 201 through the return channel 209.

[0025] Both sides of the outer wall of the two drive rods 207 are fixedly connected with pulleys 213, and both sides of the inner wall of the mounting plate 202 are provided with sliding grooves 214. Both pulleys 213 are in contact with the inner wall of the sliding grooves 214, so that the two drive rods 207 can move up and down more smoothly.

[0026] The processing tank 100 has a waste oil storage tank 300 inside, and a cutting fluid storage tank 301 is located on the right side inside the processing tank 100. An oil suction plate 302 is placed inside the waste oil storage tank 300, and a float plate 303 is fixedly connected to the outer wall of the oil suction plate 302. An oil suction trough 304 is located inside the oil suction plate 302. An oil-water separator 305 is fixedly installed on the top of the processing tank 100. A pump suction hose 306 is fixedly connected to the left side of the oil-water separator 305 and is connected to the oil suction trough 304. Diverter pipes 307 are fixedly connected to both sides of the outer wall of the oil-water separator 305, with one end of each diverter pipe 307 located inside the cutting fluid storage tank 301. The waste oil storage tank 300... Both the front of the treatment tank 100 and the cutting fluid storage tank 301 are fixedly connected to the outlet pipe 308. After the cutting fluid is filtered by the filter screen 203 in the treatment tank 100, the oil-water mixture enters the treatment tank 201. Due to the density difference between oil and water, the oil layer floats up and is adsorbed by the oil suction plate 302. The oil suction plate 302 floats on the liquid surface through the float plate 303 to follow the change in oil layer height. The oil-water separator 305 first extracts the oil floating on the top of the oil and water from the treatment tank 201 through the pump suction hose 306. After the liquid passes through the oil-water separator 305, the separated clean oil and cutting fluid flow back to the waste oil storage tank 300 and the cutting fluid storage tank 301 through the two side diversion pipes 307 for recycling, realizing continuous and efficient oil-water separation and resource recovery.

[0027] The bottom of the processing box 100 is fixedly connected to four wheels 309, which allow the entire device to be moved flexibly, making it easy to move between different work areas (such as next to machine tools or centralized recycling points) and adapt to workshop layout adjustments or maintenance needs.

[0028] Working Principle: The internal space of the treatment tank 100 is divided by a partition 200. The cutting fluid first enters the treatment tank 201 on the left side and undergoes preliminary solid-liquid separation through the filter screen 203, where impurities are trapped. The filtered liquid impacts the fan blades 205, driving the rotating shaft 204 to rotate. This causes the drive block 206 to rotate and periodically push the drive rod 207, which moves up and down periodically and pushes the filter screen 203 upwards, causing it to vibrate. This causes the trapped metal debris to slide into the collection frame 208 for centralized collection, facilitating the collection and processing of metal debris inside the treatment tank 100 by the staff. After the cutting fluid is filtered by the filter screen 203 in the treatment tank 100, the oil-water mixture enters the treatment tank 201. Due to the density difference between oil and water, the oil layer floats to the top and is absorbed by the oil suction plate 302. The oil suction plate 302 remains floating due to the float plate 303. The oil level changes with the oil layer height. The oil-water separator 305 first extracts the oil floating on the top surface of the oil and water from the treatment tank 201 through the pump suction hose 306. After passing through the oil-water separator 305, the separated clean oil and cutting fluid flow back to the waste oil storage tank 300 and the cutting fluid storage tank 301 through the two side diversion pipes 307 for recycling, realizing continuous and efficient oil-water separation and resource recovery. The bottom of the treatment box 100 is fixedly connected to four wheels 309 at all four ends. The wheels 309 make the whole device flexible and easy to move between different work areas (such as next to the machine tool or centralized recycling point) to adapt to workshop layout adjustment or maintenance needs.

Claims

1. A cutting fluid recovery oil-water separation device characterized by: The system includes a processing box (100), a partition (200), and a processing tank (201). The partition (200) is evenly connected to the interior of the processing box (100). The processing tank (201) is located on the left side of the processing box (100). An installation plate (202) is evenly connected inside the processing tank (201). A filter screen (203) is connected inside the installation plate (202). A rotating shaft (204) is connected inside the processing tank (201). A fan blade (205) is connected to the outer wall of the rotating shaft (204). A drive block (206) is connected to both sides of the outer wall of the rotating shaft (204). A drive rod (207) is connected to both sides inside the installation plate (202). A collection frame (208) is connected inside the processing box (100). A return trough (209) is provided inside the processing box (100). The return trough (209) is connected to the processing tank (201).

2. The oil-water separation device for cutting fluid recovery according to claim 1, characterized by: The top of the filter screen (203) and the interior of the mounting plate (202) are both connected to a stabilizing rod (210). One end of the left stabilizing rod (210) is located inside the mounting plate (202), and the right stabilizing rod (210) passes through the body of the filter screen (203). Springs (211) are provided inside the mounting plate (202) and on the outer wall of the right stabilizing rod (210). The left spring (211) is connected to the left stabilizing rod (210).

3. The oil-water separator for cutting fluid recovery according to claim 1, characterized in that: The bottom wall of the collection frame (208) is connected to a screen (212), which is located in the return trough (209).

4. The oil-water separation device for cutting fluid recovery according to claim 1, characterized by: Both sides of the outer wall of the drive rod (207) are connected to pulleys (213), and both sides of the inner wall of the mounting plate (202) are provided with sliding grooves (214). Both pulleys (213) are in contact with the inner wall of the sliding grooves (214).

5. The oil-water separation device for cutting fluid recovery according to claim 1, characterized in that: The processing tank (100) is equipped with a waste oil storage tank (300) inside, and a cutting fluid storage tank (301) is provided on the right side inside the processing tank (100). An oil suction plate (302) is provided inside the waste oil storage tank (300), and a float plate (303) is connected to the outer wall of the oil suction plate (302). An oil suction trough (304) is provided inside the oil suction plate (302). An oil-water separator (305) is installed on the top of the processing tank (100). A pump suction hose (306) is connected to the left side of the oil separator (305), and the pump suction hose (306) is connected to the oil suction tank (304). Both sides of the outer wall of the oil-water separator (305) are connected to a diversion pipe (307). One end of the diversion pipe (307) on both sides is located inside the cutting fluid storage tank (301). The front side of the waste oil storage tank (300) and the cutting fluid storage tank (301) are both connected to a liquid outlet pipe (308).

6. The oil-water separation device for cutting fluid recovery according to claim 1, characterized in that: The bottom of the processing box (100) is connected to four wheels (309).