An oil-water separation device

Abstract

This utility model relates to an oil-water separation device, comprising an oil removal tank with an inlet and an outlet, multiple baffles and oil-blocking plates, and an oil scraper. The baffles divide the oil removal tank into a sedimentation tank 1, a sedimentation tank 2, an oil collection tank, an oil removal tank, and a clean water tank. The inlet, sedimentation tank 1, sedimentation tank 2, oil collection tank, oil removal tank, clean water tank, and outlet are sequentially connected. The tops of sedimentation tank 1 and sedimentation tank 2 are connected, the top of sedimentation tank 2 and oil collection tank are connected, the top of oil collection tank and oil removal tank are connected, and the bottom of oil removal tank and clean water tank are connected. An oil-blocking plate is installed inside the oil removal tank, with one side of the plate inclined and inserted below the liquid level. The middle of the plate is concave to form an oil discharge trough, allowing floating oil in the oil removal tank to flow into the discharge trough. The oil-collecting end of the oil scraper extends downward below the liquid level in the oil removal tank, and the oil-discharge end of the scraper is vertically connected to the discharge trough. This utility model can reduce the problem of floating oil on the upper layer during grinding fluid recycling and increase the service life of the grinding fluid.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separation technology for machining coolant, and in particular to an oil-water separation device. Background Technology

[0002] A grinding machine is a machine tool that uses abrasive wheels to grind the surface of a workpiece. During the machining of rolls using a roll grinding machine, the special operating environment of the roll grinding machine results in a large amount of floating oil on the surface of the grinding fluid (also known as coolant). This floating oil may be gear or bearing lubricating oil, or leaked hydraulic oil. Because the grinding fluid needs to be recycled, the floating oil must be treated to avoid affecting the effectiveness of the grinding fluid. A single oil filter has limited filtration efficiency, leading to a shorter service life of the grinding fluid, poor cleaning and cooling effects, and a reduction in the surface quality of the ground rolls. Summary of the Invention

[0003] In order to solve the problem of limited filtration effect of oil filtration devices, this utility model provides an oil-water separation device. First, it uses an oil skimmer to scrape off floating oil. Second, it makes an oil-blocking plate with an oil draining groove. Relying on the different densities of water and oil, the oil is automatically removed by buoyancy after settling and separating into layers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An oil-water separation device includes an oil removal tank with an inlet and an outlet, multiple partitions and an oil baffle, and an oil skimmer. The multiple partitions are spaced apart inside the oil removal tank to facilitate dividing the oil removal tank into multiple spaces. The multiple partitions divide the oil removal tank into a sedimentation tank 1, a sedimentation tank 2, an oil collection tank, an oil removal tank, and a clean water tank.

[0006] The inlet, sedimentation tank 1, sedimentation tank 2, oil collection tank, oil removal tank, and water purification tank, as well as the outlet, are connected in sequence. The tops of sedimentation tank 1 and sedimentation tank 2 are connected, the tops of sedimentation tank 2 and oil collection tank are connected, the tops of oil collection tank and oil removal tank are connected, and the bottoms of oil removal tank and water purification tank are connected.

[0007] The oil-blocking plate is installed in the oil removal tank to facilitate the blocking of floating oil. One side of the oil-blocking plate is inserted at an angle below the liquid level of the oil removal tank, and the middle of the oil-blocking plate is recessed downward to form an oil discharge trough, which facilitates the collection of floating oil. The floating oil in the oil removal tank flows into the oil discharge trough. The oil skimmer is installed on the oil removal tank and corresponds to the oil removal tank. The oil-taking end of the oil skimmer extends downward below the liquid level of the oil removal tank, and the oil-discharging end of the oil skimmer is connected vertically to the oil discharge trough.

[0008] Furthermore, there are four partitions, with the upper end of the first partition broken to form a passage, through which the sedimentation tank one and the sedimentation tank two are connected;

[0009] The upper end of the second partition plate is broken to form a second opening, through which the second sedimentation tank and the oil collection tank are connected. The second opening and the first opening are of equal height.

[0010] Furthermore, the upper end of the third partition plate is broken to form a passage three, through which the oil collection tank and the oil removal tank are connected, and the height of the passage three is greater than the height of the passage two;

[0011] The lower end of the fourth partition forms a four-way opening, through which the oil removal tank and the water purification tank are connected.

[0012] Furthermore, the bottoms of sedimentation tank one, sedimentation tank two, oil collection tank, and clean water tank are all connected to drain valves, facilitating the cleaning of the internal space of the oil removal tank.

[0013] Furthermore, the oil-blocking plate is a long plate structure formed by bending a steel plate. The oil-blocking plate includes an integrally formed dehydration section, an oil-draining section, and a water-inlet section. The oil-draining section is arranged between the dehydration section and the water-inlet section, and the dehydration section and the water-inlet section are arranged obliquely on the same straight line. The cross-section of the oil-draining section is U-shaped, and the space enclosed by the oil-draining section is the oil-draining groove, which is a groove of a certain length. This facilitates the maximum collection of floating oil.

[0014] Furthermore, the side walls of the oil removal tank at both ends of the oil drain trough are open, and a chute is provided outside the oil removal tank. The chute is arranged at an angle downwards. A waste liquid collection frame is provided on the ground on one side of the oil removal tank. The upper end of the chute is connected to the end of the oil drain trough, and the lower end of the chute is connected to the waste liquid collection frame. This facilitates the natural discharge of floating oil in the oil drain trough into the waste liquid collection frame.

[0015] Furthermore, the number of oil scrapers is multiple, and the multiple oil scrapers are evenly arranged along the length of the oil drain trough. The oil scrapers are steel belt type oil scrapers, and the oil scraping belt of the oil scraper extends vertically downward to below the liquid level of the oil removal tank. The oil discharge port of the oil scraper is connected to the oil drain trough.

[0016] The beneficial effects of this utility model through the above technical solution are:

[0017] This utility model features a reasonable structural design. The grinding fluid, after undergoing two sedimentation processes in the sedimentation tank, flows to the oil collection tank. Due to the density difference between water and oil, floating oil accumulates on the surface of the oil in the collection tank. This floating oil then enters the oil removal tank, while the grinding fluid flows from below into the clean water tank. The upper layer of floating oil automatically passes through the oil baffle plate and flows into the oil discharge trough, ultimately being discharged from the oil removal tank. The oil baffle plate and oil discharge trough collect the floating oil, and a steel belt skimmer further collects it. This combination of measures improves the filtration and collection efficiency of the floating oil. Attached Figure Description

[0018] Figure 1 This is a front view of an oil-water separation device according to this utility model.

[0019] Figure 2 This utility model relates to an oil-water separation device. Figure 1 Enlarged diagram of direction A.

[0020] Figure 3 This is a top view of an oil-water separation device according to this utility model.

[0021] Figure 4 This utility model relates to an oil-water separation device. Figure 3 Enlarged diagram of point B in the middle.

[0022] Figure 5 This utility model relates to an oil-water separation device. Figure 3 Enlarged diagram of point C in the middle.

[0023] The attached diagram is labeled as follows: 1. Oil removal tank, 101. Water inlet, 102. Water outlet, 2. Baffle, 3. Oil baffle, 31. Dehydration section, 32. Oil discharge section, 33. Water inlet section, 4. Oil scraper, 41. Oil scraper belt, 42. Oil discharge port, 5. Sedimentation tank one, 6. Sedimentation tank two, 7. Oil collection tank, 8. Oil removal tank, 9. Clean water tank, 10. Through port one, 11. Through port two, 12. Through port three, 13. Through port four, 14. Oil discharge trough, 15. Sluice, 16. Waste liquid collection frame, 17. Drain valve, 181. Lead screw, 182. Polished rod, 183. Cleaning plate, 184. Handwheel, 185. Cleaning strip. Detailed Implementation

[0024] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0025] like Figures 1-5 As shown, an oil-water separation device includes an oil removal tank 1 with an inlet 101 and an outlet 102, multiple baffles 2 and oil blocking plates 3, and an oil skimmer 4. The oil removal tank 1 is a rectangular box, and four baffles 2 are arranged at intervals inside the oil removal tank 1, which divides the oil removal tank 1 into a sedimentation tank 5, a sedimentation tank 6, an oil collection tank 7, an oil removal tank 8, and a clean water tank 9.

[0026] In this embodiment, the inlet 101, sedimentation tank 5, sedimentation tank 6, oil collection tank 7, oil removal tank 8, and clean water tank 9, as well as the outlet 102, are connected in sequence. Specifically, the tops of sedimentation tank 5 and sedimentation tank 6 are connected, that is, the upper end of the first partition 2 is disconnected to form a through-hole 10, through which sedimentation tank 5 and sedimentation tank 6 are connected. Sedimentation tank 5 and sedimentation tank 6 have the same structure, size, and volume.

[0027] The tops of sedimentation tank 2 (6) and oil collection tank 7 are connected, i.e., the upper end of the second partition 2 is disconnected to form opening 2 (11). Sedimentation tank 2 (6) and oil collection tank 7 are connected through opening 2 (11). Opening 2 (11) and opening 1 (10) are of equal height. The tops of oil collection tank 7 and oil removal tank 8 are connected, i.e., the upper end of the third partition 2 is disconnected to form opening 3 (12). Oil collection tank 7 and oil removal tank 8 are connected through opening 3 (12). The height of opening 3 (12) is greater than the height of opening 2 (11), thus the volume of oil collection tank 7 is smaller than the volume of sedimentation tank 2 (6). The bottoms of oil removal tank 8 and water purification tank 9 are connected, i.e., the lower end of the fourth partition 2 forms opening 4 (13). Oil removal tank 8 and water purification tank 9 are connected through opening 4 (13).

[0028] An oil-blocking plate 3 is installed inside the oil removal tank 8. The oil-blocking plate 3 is a long plate structure formed by bending a steel plate. The oil-blocking plate 3 is placed at an angle, with one side of the oil-blocking plate 3 inserted below the liquid surface of the oil removal tank 8, and the other side of the oil-blocking plate 3 positioned above the liquid surface of the oil removal tank 8. The oil-blocking plate 3 has a downward rectangular indentation in the middle to form an oil discharge groove 14, which is a rectangular groove of a certain length.

[0029] Specifically, the oil-blocking plate 3 includes an integrally formed dehydration section 31, an oil discharge section 32, and a water inlet section 33. The oil discharge section 32 is arranged between the dehydration section 31 and the water inlet section 33, and the dehydration section 31 and the water inlet section 33 are arranged at an angle on the same straight line. The dehydration section 31 is located above the liquid surface, and the water inlet section 33 extends below the liquid surface. The oil discharge section 32 has a U-shaped cross-section, and the space formed by the oil discharge section 32 is an oil discharge trough 14, into which the floating oil in the oil removal tank 8 flows. The inlet position of the oil discharge trough 14 is slightly higher than the upper end of the third baffle 2 by about 1-2 mm, that is, the junction of the water inlet section 33 and the oil discharge section 32 is slightly higher than the upper end of the third baffle 2 by about 1-2 mm.

[0030] The oil skimmer 4 is installed on the oil removal tank 1 and corresponds to the oil removal pool 8. There are three oil skimmers 4, which are evenly arranged along the length of the oil drain trough 14. The oil skimmer 4 is a steel belt type. The oil intake end of the oil skimmer 4 extends downward below the liquid level of the oil removal pool 8, and the oil outlet end of the oil skimmer 4 is vertically connected to the oil drain trough 14. The oil skimming belt 41 of the oil skimmer 4 extends vertically downward below the liquid level of the oil removal pool 8. The oil skimming belt 41 can be regarded as the oil intake end. The oil outlet 42 of the oil skimmer 4 is connected to the oil drain trough 14 and can be regarded as the oil outlet end.

[0031] The principle of this invention is as follows: In the initial state, the sedimentation tank 5, sedimentation tank 6, oil collection tank 7, oil removal tank 8, and clean water tank 9 are already filled with grinding fluid. When the used grinding fluid with floating oil is introduced into the oil removal tank 1 through the inlet 101, the grinding fluid flows into sedimentation tank 5 and sedimentation tank 6. After two sedimentation processes, it flows into the oil collection tank 7. After the floating oil is collected in the oil collection tank 7, it flows into the oil removal tank 8. Subsequently, the grinding fluid enters the clean water tank 9 from below the oil removal tank 8 and is finally discharged through the outlet 102 for recycling.

[0032] During the flow of the grinding fluid, the oil removal tank 8 and the clean water tank 9 are connected by the opening 413 at the lower end of the partition 2. Due to the difference in density between water and oil, the floating oil will float on the surface of the water in the oil removal tank 8, while the clean water will flow to the clean water tank 9 through the bottom. The oil baffle 3 is inserted obliquely into the oil removal tank 8 and extends below the water surface. When the floating oil on the surface of the water in the oil removal tank 8 accumulates and rises above the oil discharge trough 14, it will automatically flow into the oil discharge trough 14. At the same time, the oil scraper 4 can be turned on. The oil scraper belt 41 of the oil scraper 4 circulates, which can collect the floating oil and discharge it from the oil discharge port 42, eventually dripping into the oil discharge trough 14.

[0033] To facilitate the timely discharge of waste oil from the oil drain trough 14, openings are made in the side walls of the oil removal tank 1 at both ends of the oil drain trough 14, i.e., notches are made in the side walls of the oil removal tank 1, and the two notches are connected to the two ends of the oil drain trough 14 respectively. At the same time, a chute 15 is provided outside the oil removal tank 1, and the chute 15 is arranged at an angle downwards. A waste liquid collection frame 16 is set on the ground on one side of the oil removal tank 1. The upper end of the chute 15 is connected to the end of the oil drain trough 14, and the lower end of the chute 15 is connected to the waste liquid collection frame 16. In this way, the floating oil in the oil drain trough 14 will automatically flow to both ends, flow into the waste liquid collection frame 16 through the chute 15, and realize the collection of floating oil.

[0034] To optimize the product structure, drain valves 17 are connected to the bottom of sedimentation tank 5, sedimentation tank 6, oil collection tank 7, and clean water tank 9 to facilitate cleaning of the inside of the oil removal tank 1. Meanwhile, a cleaning mechanism is installed inside the oil removal tank 1, comprising a lead screw 181, a smooth rod 182, and a cleaning plate 183. The lead screw 181 and smooth rod 182 are arranged parallel vertically. Both ends of the lead screw 181 are rotatably connected to the oil removal tank 1 via bearing seats. Handwheels 184 extend from both ends of the lead screw 181 and are connected to the oil removal tank 1, facilitating rotation of the lead screw 181. Both ends of the smooth rod 182 are fixedly connected to the oil removal tank 1.

[0035] The cleaning plate 183 has a certain height and is inserted between the lead screw 181 and the guide rod 182. The cleaning plate 183 is engaged with the lead screw 181 and slidably connected to the guide rod 182. The lower end of the cleaning plate 183 extends into the oil drain trough 14. By rotating the lead screw 181 with the handwheel 184, the cleaning plate 183 can be moved linearly within the oil drain trough 14, thereby scraping away the oil stains in the oil drain trough 14.

[0036] In its initial state, the cleaning plate 183 is located in the middle of the oil drain trough 14, without affecting the flow of floating oil from both ends of the oil drain trough 14. After the oil removal tank 1 has been used for a certain period of time, the cleaning plate 183 can be used to clean the oil drain trough 14. In addition, a cleaning strip 185 extends outward from one side of the cleaning plate 183. The cleaning strip 185 contacts the surface of the dehydration section 31, and when the cleaning plate 183 moves, it moves the cleaning strip 185 along with it, thereby scraping off the oil stains on the surface of the dehydration section 31.

[0037] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. An oil-water separation device, characterized by, It includes an oil removal tank (1) with an inlet (101) and an outlet (102), multiple partitions (2) and an oil baffle (3) and an oil skimmer (4). Multiple partitions (2) are spaced apart inside the oil removal tank (1), and the multiple partitions (2) divide the oil removal tank (1) into a sedimentation tank one (5), a sedimentation tank two (6), an oil collection tank (7), an oil removal tank (8) and a clean water tank (9). The inlet (101), sedimentation tank 1 (5), sedimentation tank 2 (6), oil collection tank (7), oil removal tank (8), and water purification tank (9) and outlet (102) are connected in sequence. The tops of sedimentation tank 1 (5) and sedimentation tank 2 (6) are connected. The tops of sedimentation tank 2 (6) and oil collection tank (7) are connected. The tops of oil collection tank (7) and oil removal tank (8) are connected. The bottoms of oil removal tank (8) and water purification tank (9) are connected. The oil-blocking plate (3) is installed in the oil removal tank (8). One side of the oil-blocking plate (3) is inserted at an angle below the liquid level of the oil removal tank (8). The middle part of the oil-blocking plate (3) is recessed downward to form an oil draining trough (14). The floating oil in the oil removal tank (8) flows into the oil draining trough (14). The oil scraper (4) is installed on the oil removal box (1) and corresponds to the oil removal tank (8). The oil-taking end of the oil scraper (4) extends downward to below the liquid level of the oil removal tank (8). The oil-exit end of the oil scraper (4) is connected vertically to the oil draining trough (14).

2. The oil-water separation device of claim 1, wherein There are four partitions (2). The upper end of the first partition (2) is broken to form a passage (10). The sedimentation tank 1 (5) and sedimentation tank 2 (6) are connected through the passage (10). The upper end of the second partition (2) is disconnected to form a second opening (11). The second sedimentation tank (6) and the oil collection tank (7) are connected through the second opening (11). The second opening (11) and the first opening (10) are of equal height.

3. An oil-water separation device according to claim 2, characterized in that The upper end of the third partition (2) is broken to form a third opening (12), and the oil collection tank (7) and the oil removal tank (8) are connected through the third opening (12). The height of the third opening (12) is greater than the height of the second opening (11). The lower end of the fourth partition (2) forms a four-way opening (13), through which the oil removal tank (8) and the water purification tank (9) are connected.

4. The oil-water separation device of claim 1, wherein The bottom of each of the sedimentation tank 1 (5), sedimentation tank 2 (6), oil collection tank (7) and water purification tank (9) is connected to a drain valve (17).

5. The oil-water separation device of claim 1, wherein The oil blocking plate (3) is a long plate structure formed by bending steel plate. The oil blocking plate (3) includes an integrally formed dehydration section (31), an oil discharge section (32) and a water inlet section (33). The oil discharge section (32) is arranged between the dehydration section (31) and the water inlet section (33). The dehydration section (31) and the water inlet section (33) are arranged obliquely on the same straight line. The cross section of the oil discharge section (32) is "U". The space formed by the oil discharge section (32) is the oil discharge groove (14). The oil discharge groove (14) is a groove with a certain length.

6. The oil-water separation device of claim 1, wherein The oil drain trough (14) has openings on the side walls of the oil removal tank (1) at both ends. A chute (15) is provided outside the oil removal tank (1). The chute (15) is arranged at an angle downwards. A waste liquid collection frame (16) is provided on the ground on one side of the oil removal tank (1). The upper end of the chute (15) is connected to the end of the oil drain trough (14), and the lower end of the chute (15) is connected to the waste liquid collection frame (16).

7. The oil-water separation device of claim 1, wherein The number of oil scrapers (4) is multiple. Multiple oil scrapers (4) are evenly arranged along the length of the oil drain trough (14). The oil scrapers (4) are steel belt type oil scrapers (4). The oil scraping belt (41) of the oil scraper (4) extends vertically downward to below the liquid level of the oil removal tank (8). The oil drain port (42) of the oil scraper (4) is connected to the oil drain trough (14).

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