An oil-water separation device for treating oily wastewater

Abstract

The present invention discloses an oil-water separation device for treating oily wastewater, belonging to the field of wastewater treatment. The device comprises a housing, a water inlet is provided through the top left side of the housing, a water outlet is provided through the bottom right side of the housing, a mounting shell is fixedly connected to the interior of the housing, and multiple sets of oil suction mechanisms are provided on the left side of the interior of the mounting shell. The multiple sets of oil suction mechanisms are respectively located in the top middle and bottom of the left side of the interior of the mounting shell. Oil passing through the water surface will not be discharged from the gap between the bottom of the mounting shell and the housing. As more and more wastewater is discharged into the housing through the water inlet, more and more oil will appear on the water surface, making it easier to separate the oil and avoiding the problem of too little oil in the water making it difficult to separate the oil. Finally, the oil level is higher than the mounting shell, and the oil-water mixture passes through the multiple sets of oil suction members, which are made of an oleophilic and hydrophobic material, so that the oil suction members adsorb the oil in the oil-water mixture.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, and more particularly to an oil-water separation device for treating oily sewage. Background Art

[0002] Oil-water separation primarily utilizes gravity sedimentation or other physical-chemical reactions to remove impurities or separate oil and water based on the density difference or chemical properties of oil and water. An oil-water separator is a device that can be divided into two types: catering oil-water separators and industrial oil-water separators. Catering oil-water separators are used in the catering industry to treat wastewater.

[0003] Direct discharge of oil-water mixture will cause environmental pollution. Therefore, at present, oil-water mixture is usually transported to sewage treatment plants first, and then centrally treated by sewage treatment plants, which is very costly.

[0004] Chinese patent publication number CN113546448B discloses an oil-water separation device that collects discharged oil through an oil collecting box. Since the bottom surface of the oil collecting box forms an acute angle with the axis of the oil collecting pipe, the oil can be collected in the oil collecting box, thereby separating the oil-water mixture into oil and water.

[0005] A Chinese patent with authorization announcement number CN108439537A discloses an oil-water separation device. By providing a pushing mechanism and a float-type switch mechanism, the float-type switch mechanism is triggered by the drop in the liquid level, allowing the gas in the supporting airbag to enter the pushing airbag, thereby causing the pushing airbag to push the block to move, causing the liquid level in the separation box to rise and the oil layer to accumulate, so that the oil is discharged into the oil drain pipe as much as possible, reducing the oil content of the discharged water.

[0006] The first method mentioned above is to make the angle between the bottom surface of the oil collecting box and the axis of the oil collecting pipe an acute angle, so that the oil can be collected in the oil collecting box, thereby separating the oil-water mixture into oil and water. The second method is to push the air bag to push the block to move, so that the liquid level in the separation box rises and the oil layer gathers, so that the oil is discharged into the oil drain pipe as much as possible. However, when there is less oil in the oil-water mixture, only a shallow layer of oil floats on the water surface, which is difficult to collect and process this layer of oil, resulting in poor oil-water separation effect. Summary of the Invention

[0007] In response to the problems existing in the prior art, the purpose of the present invention is to provide an oil-water separation device for treating oily wastewater. The oil on the water surface will not be discharged from the gap between the bottom of the mounting shell and the outer shell. As more and more sewage is discharged into the outer shell from the water inlet, more and more oil will appear on the water surface, which facilitates the separation of the oil and avoids the difficulty of separating the oil due to too little oil in the water. Finally, the oil level is higher than the mounting shell, and the mixture of oil and water passes through multiple groups of oil absorption parts, and the oil absorption parts are made of oleophilic and hydrophobic material, so that the oil absorption parts adsorb the oil in the mixture of oil and water.

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] An oil-water separation device for treating oily wastewater comprises a housing, a water inlet being provided through the left top portion of the housing, a water outlet being provided through the right bottom portion of the housing, a mounting shell being fixedly connected to the interior of the housing, a plurality of oil suction mechanisms being provided on the left side of the interior of the mounting shell, the plurality of oil suction mechanisms being located respectively in the top middle portion and the bottom portion of the left side of the interior of the mounting shell;

[0010] The oil suction mechanism is used to collect the oil floating on the top of the sewage flowing into the installation shell, and multiple groups of oil suction mechanisms are distributed at the top, middle and bottom to collect oil at different heights;

[0011] The oil suction mechanism comprises a guide plate fixedly connected to the mounting shell, and oil suction pieces are fixedly connected to both sides of the guide plate. The material of the oil suction pieces is a hydrophobic and oleophilic sponge.

[0012] Furthermore, the front side of the guide plate is slidably connected to an extrusion plate, the end of the guide plate close to the extrusion plate is an arc surface, the top of the guide plate is provided with a first moving groove, and the interior of the extrusion plate is fixedly connected to a second extension block.

[0013] Furthermore, a driving member is provided on the front side of the mounting shell. The driving member includes a connecting rod slidably connected to the inside of the mounting shell. The connecting rod extends downward and is fixedly connected to the extrusion plate.

[0014] Furthermore, the left side of the mounting shell is slidably connected to an inclined plate, the top of the inclined plate extends upward to form multiple filter screens, and blocking blocks are fixedly connected between each of the multiple filter screens. The right side of the inclined plate extends toward the mounting shell to form a first insertion block, and a sliding groove is provided inside the mounting shell to accommodate the movement of the first insertion block, and the left side of the blocking block is flush with the left side of the filter screen.

[0015] Furthermore, a scraper is fixedly connected to the left side of the connecting rod, and the scraper is fitted with the left side of the inclined plate. The right side of the scraper extends toward the inclined plate to form a first extension block. An extrusion groove is provided inside the inclined plate corresponding to the moving trajectory of the first extension block, and the cross-sectional shape of the extrusion groove is a right-angled trapezoid.

[0016] Furthermore, a push plate is slidably connected to the left side of the scraper, and the push plate extends close to the side of the scraper to form an insertion plate, a second circular hole is opened inside the insertion plate, and a first circular hole matching the second circular hole is opened inside the scraper.

[0017] Furthermore, an oil guide groove is opened inside the mounting shell, an oil outlet is welded on the rear side of the outer shell, the oil outlet is connected to the oil guide groove, and a processing mechanism is provided on the inner bottom of the mounting shell.

[0018] Furthermore, the processing mechanism includes a fixed plate fixedly connected to the left groove wall of the oil guide groove, and a first movable plate slidably connected to the mounting shell is provided on the right side of the fixed plate. The left bottom of the first movable plate extends toward the fixed plate to form a plurality of equally distributed fourth extension blocks, and the right top of the fixed plate extends toward the first movable plate to form a plurality of equally distributed third extension blocks, and the fourth extension blocks and the third extension blocks are staggered with each other.

[0019] Furthermore, the top right side of the first movable plate extends upward to form a slider, and a first spring is welded to the right side of the first movable plate.

[0020] Furthermore, the driving member extends downward to form an extrusion rod, and a second movable plate is provided on the top of the first movable plate which is slidably connected to the mounting shell, a third circular hole is provided inside the second movable plate, and a water outlet hole for accommodating water outflow is provided inside the right side of the mounting shell, and the water outlet hole is connected to the third circular hole, and a limiting block is slidably connected to the interior of the second movable plate, and a second spring is welded to the bottom of the limiting block, and a triangular block is welded at the top rear end of the first movable plate at the moving track of the second movable plate, and the cross-sectional shape of the triangular block is a right triangle.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In this solution, the oil on the water surface will not be discharged from the gap between the bottom of the installation shell and the outer shell. As more and more sewage is discharged into the outer shell from the water inlet, more and more oil will appear on the water surface, which is convenient for separating the oil and avoids the difficulty of separating the oil due to too little oil in the water. Finally, the oil level is higher than the installation shell, and the mixture of oil and water passes through multiple groups of oil absorption parts, and the oil absorption parts are made of oleophilic and hydrophobic materials, so that the oil absorption parts adsorb the oil in the mixture of oil and water, and the water reaches the interior of the installation shell after passing through the oil absorption parts and is then discharged, so that the mixture of oil and water is separated again, so that the separation effect is better, sewage with less oil content can be treated, and the scope of application is wider.

[0023] 2. This solution moves the connecting rod so that the connecting rod moves with the extrusion plate, which facilitates the extrusion of the oil-absorbing member during the movement of the extrusion plate. The extrusion of the oil-absorbing member by the extrusion plate can squeeze the oil in the oil-absorbing member out from the inside of the oil-absorbing member, and the collected oil can be processed centrally. The end of the guide plate close to the extrusion plate is an arc surface, which can better squeeze the oil-absorbing member. During the movement of the extrusion plate, the second extension block moves inside the first moving groove, making the movement of the extrusion plate more stable, and the extrusion plate has a better squeezing effect on the oil-absorbing member.

[0024] 3. This solution changes the height of the inclined plate on one side of the installation shell by moving the inclined plate, which is convenient for adjustment according to the sewage height in the shell, to prevent the impurities and suspended matter floating on the sewage surface from passing through the inclined plate to the interior of the installation shell due to excessive sewage height. Blocking blocks are connected between the filter screens to block the impurities and suspended matter floating on the sewage surface, while allowing the oil on the sewage surface to pass through the blocking blocks to the interior of the installation shell, thereby achieving a better separation effect on substances in the sewage.

[0025] 4. In this solution, when the scraper moves with the connecting rod, the scraper will clean the impurities attached to the surface of the blocking block, effectively preventing the blocking block from being blocked. The movement of the push plate can push the impurities floating on the sewage surface to the rear side of the shell, making it convenient for the staff to clean the floating impurities. The push plate can slide on the surface of the scraper and can be adjusted according to the height of the liquid level so that the push plate is at the liquid surface of the sewage. The push plate has a better treatment effect on floating objects on the sewage surface and avoids excessive floating objects from adhering to the surface of the blocking block. The first extension block on the scraper surface moves inside the extrusion groove. The inclined surface of the extrusion groove will cause the inclined plate to move upward after being squeezed. The inclined plate blocks the sewage in the shell again to prevent the sewage in the shell from entering the mounting shell when the extrusion plate squeezes out the oil in the oil absorber, causing the newly entered sewage to mix with the treated oil again, resulting in failure of oil-water separation.

[0026] 5. In this solution, after the oil-absorbing member absorbs the oil in the oil-water mixture, the treated sewage passes through the fixed plate and the first movable plate to the right side of the mounting shell, and the treated sewage is discharged from the right side of the mounting shell. After the oil in the oil-absorbing member is squeezed out, the oil slides along the side wall of the mounting shell to the surface of the fixed plate. By moving the first movable plate, the fourth extension block on one side of the first movable plate is separated from the third extension block, so that the oil flows from the gap between the fourth extension block and the third extension block to the inside of the oil guide groove, and the oil follows the oil guide groove to the inside of the oil outlet, and is finally discharged from the oil outlet, so that the device has a better oil-water separation effect.

[0027] 6. This solution moves the second movable plate by moving the limiting block, which facilitates the separation of the third circular hole and the water outlet hole, so that the third circular hole and the water outlet hole are staggered. After the oil in the oil suction member is squeezed out, the oil cannot pass through the third circular hole. The oil is on the surface of the fixed plate and the first movable plate, and the second movable plate will squeeze the triangular block when it moves again. When the triangular block is squeezed, it drives the first movable plate to move inside the mounting shell. The movement of the first movable plate separates the fourth extending block from the third extending block, which facilitates the oil on the surface of the fixed plate and the first movable plate to flow into the oil guide groove. When the second movable plate is difficult to move, the extrusion rod squeezes the limiting block again, and the limiting block retracts into the inside of the second movable plate, so that the connecting rod can continue to move forward, making the separation between the fixed plate and the first movable plate more convenient, and draining the oil while separating. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of the oil-water separation device of the present invention;

[0029] Figure 2 Schematic diagram of the internal structure of the oil-water separation device of the present invention;

[0030] Figure 3 This is a schematic diagram of the internal structure of the mounting shell of the present invention;

[0031] Figure 4 A top view of the mounting housing of the present invention;

[0032] Figure 5 A side cross-sectional view of the mounting housing of the present invention;

[0033] Figure 6 It is a side sectional view of the oil suction mechanism of the present invention;

[0034] Figure 7 This is a connection diagram of the fixed plate and the first movable plate of the present invention;

[0035] Figure 8 is a cross-sectional view of the scraper of the present invention;

[0036] Figure 9 It is a side view of the inclined plate of the present invention.

[0037] Description of the numbers in the figure:

[0038] 1. Housing; 11. Oil outlet; 12. Water outlet; 13. Water inlet; 2. Mounting housing; 21. Water outlet; 22. Oil guide groove; 23. Inclined plate; 231. Blocking block; 232. Filter screen; 233. First insertion block; 234. Extrusion groove; 24. Slideway; 3. Driving member; 31. Scraper; 311. First circular hole; 312. First extension block; 32. Connecting rod; 33. Pusher plate; 331. Insertion plate; 332. Second circular hole; 34 , extrusion rod; 4, oil suction mechanism; 41, oil suction member; 42, extrusion plate; 421, second extension block; 43, guide plate; 431, first movable groove; 5, processing mechanism; 51, fixed plate; 511, third extension block; 52, first movable plate; 521, first spring; 522, slider; 523, triangular block; 524, fourth extension block; 53, second movable plate; 531, limiting block; 532, third circular hole; 533, second spring. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 4 , an oil-water separation device for treating oily wastewater, comprising a shell 1, a water inlet 13 is provided through the top left side of the shell 1, a water outlet 12 is provided through the bottom right side of the shell 1, a mounting shell 2 is fixedly connected to the interior of the shell 1, a plurality of groups of oil suction mechanisms 4 are provided on the left side of the interior of the mounting shell 2, and the plurality of groups of oil suction mechanisms 4 are respectively located in the top middle and bottom of the left side of the interior of the mounting shell 2; the oil suction mechanism 4 is used to collect the oil floating on the top of the sewage flowing into the mounting shell 2, and the plurality of groups of oil suction mechanisms 4 are distributed in the upper, middle and lower parts, so as to collect oil at different heights; the oil suction mechanism 4 comprises a guide plate 43 fixedly connected to the mounting shell 2, and oil suction parts 41 are fixedly connected on both sides of the guide plate 43, and the material of the oil suction part 41 is a hydrophobic and oleophilic sponge.

[0041] By injecting sewage into the interior of the shell 1 from the water inlet 13, the oil on the surface of the sewage is on the surface of the water, and the water is discharged along the gap between the bottom of the mounting shell 2 and the shell 1, so that part of the water and the oil are initially separated, and the oil on the water surface will not be discharged from the gap between the bottom of the mounting shell 2 and the shell 1. As more and more sewage is discharged into the shell 1 from the water inlet 13, more and more oil will appear on the surface of the water, which facilitates the separation of the oil and avoids the problem of too little oil in the water causing the oil to be difficult to separate. Finally, the oil level is higher than the mounting shell 2, and the oil and part of the water flow into the interior of the mounting shell 2 from the side wall of the mounting shell 2. The mixture of oil and water passes through multiple groups of oil absorption parts 41, and the oil absorption parts 41 are made of oleophilic and hydrophobic material, so that the oil absorption parts 41 absorb the oil in the mixture of oil and water, and the water reaches the interior of the mounting shell 2 after passing through the oil absorption parts 41 and is then discharged, so as to separate the mixture of oil and water again, make the separation effect better, and can treat sewage with less oil content, with a wider range of applications.

[0042] like Figures 1 to 4 and Figure 6 As shown, the front side of the guide plate 43 is slidably connected to the extrusion plate 42, the end of the guide plate 43 close to the extrusion plate 42 is an arc surface, the top of the guide plate 43 is provided with a first moving groove 431, the interior of the extrusion plate 42 is fixedly connected to the second extension block 421, and the front side of the mounting shell 2 is provided with a driving member 3, the driving member 3 includes a connecting rod 32 slidably connected to the interior of the mounting shell 2, and the connecting rod 32 extends downward and is fixedly connected to the extrusion plate 42.

[0043] When the connecting rod 32 is moved, the connecting rod 32 moves with the squeezing plate 42, which facilitates the squeezing of the oil-absorbing member 41 during the movement of the squeezing plate 42. The squeezing of the oil-absorbing member 41 by the squeezing plate 42 can squeeze the oil in the oil-absorbing member 41 out from the inside of the oil-absorbing member 41, and the collected oil can be processed centrally. The end of the guide plate 43 close to the squeezing plate 42 is an arc surface, which can better squeeze the oil-absorbing member 41. During the movement of the squeezing plate 42, the second extending block 421 moves inside the first moving groove 431, making the movement of the squeezing plate 42 more stable, and the squeezing effect of the squeezing plate 42 on the oil-absorbing member 41 is better.

[0044] like Figures 2 to 4 As shown, the left side of the mounting shell 2 is slidably connected to a slanted plate 23, the top of the slanted plate 23 extends upward to form a plurality of filter screens 232, and a blocking block 231 is fixedly connected between each of the plurality of filter screens 232. The right side of the slanted plate 23 extends toward the mounting shell 2 to form a first insertion block 233, and a slide groove 24 is provided inside the mounting shell 2 to accommodate the movement of the first insertion block 233. The left side of the blocking block 231 is flush with the left side of the filter screen 232.

[0045] By moving the inclined plate 23, the height of the inclined plate 23 on one side of the mounting shell 2 is changed, which facilitates adjustment according to the sewage height in the outer shell 1, thereby preventing the sewage height from being too high, resulting in impurities and suspended matter floating on the sewage surface from passing through the inclined plate 23 to the interior of the mounting shell 2, and the top of the inclined plate 23 extends to form a plurality of filter screens 232, and blocking blocks 231 are connected between the filter screens 232, which can block impurities and suspended matter floating on the sewage surface, while the oil on the sewage surface can pass through the blocking blocks 231 to the interior of the mounting shell 2, thereby having a better separation effect on substances in the sewage.

[0046] like Figures 2 to 3 and Figure 8 and Figure 9 As shown, the left side of the connecting rod 32 is fixedly connected with a scraper 31, and the scraper 31 is fitted with the left side of the inclined plate 23. The right side of the scraper 31 extends toward the inclined plate 23 to form a first extension block 312. The interior of the inclined plate 23 is provided with an extrusion groove 234 corresponding to the moving trajectory of the first extension block 312. The cross-sectional shape of the extrusion groove 234 is a right-angled trapezoid. The left side of the scraper 31 is slidably connected with a push plate 33, and the push plate 33 extends close to the side of the scraper 31 to form an insertion plate 331. The insertion plate 331 has a second circular hole 332 inside, and the scraper 31 has a first circular hole 311 matching the second circular hole 332 inside.

[0047] The scraper 31 is moved with the movement of the connecting rod 32, and the scraper 31 is fitted with the surface of the inclined plate 23, and the left side of the blocking block 231 is flush with the left side of the filter screen 232. When the connecting rod 32 moves and moves with the scraper 31, the scraper 31 will clean the impurities attached to the surface of the blocking block 231, effectively preventing the blocking block 231 from being blocked, and the movement of the scraper 31 will move with the pusher plate 33, and the movement of the pusher plate 33 can push the impurities floating on the sewage surface to the rear side of the shell 1, making it convenient for the staff to clean the floating impurities, and the pusher plate 33 can slide on the surface of the scraper 31, and the pusher plate 33 can be adjusted according to the height of the liquid level so that the pusher plate 33 is at the liquid surface of the sewage, and then the bolt is used to penetrate the second circle The hole 332 and the first circular hole 311 enable the push plate 33 to better handle floating objects on the surface of the sewage and prevent excessive floating objects from adhering to the surface of the blocking block 231. When the connecting rod 32 moves with the scraper 31, the first extension block 312 on the surface of the scraper 31 moves inside the extrusion groove 234, so that the inclined surface of the extrusion groove 234 is squeezed. After the inclined surface of the extrusion groove 234 is squeezed, the inclined plate 23 moves upward. When the height of the inclined plate 23 rises, the inclined plate 23 blocks the sewage in the shell 1 again, preventing the sewage in the shell 1 from entering the mounting shell 2 when the extrusion plate 42 squeezes out the oil in the oil absorption member 41, causing the newly entered sewage to mix with the treated oil again, resulting in failure of oil-water separation.

[0048] like Figures 2 to 3 and Figure 7 As shown, an oil guide groove 22 is provided inside the mounting shell 2, and an oil outlet 11 is welded to the rear side of the outer shell 1, and the oil outlet 11 is communicated with the oil guide groove 22. A processing mechanism 5 is provided at the inner bottom of the mounting shell 2, and the processing mechanism 5 includes a fixed plate 51 fixedly connected to the left groove wall of the oil guide groove 22, and a first movable plate 52 slidingly connected to the mounting shell 2 is provided on the right side of the fixed plate 51, and the left bottom of the first movable plate 52 extends toward the direction of the fixed plate 51 to form a plurality of equally distributed fourth extension blocks 524, and the right top of the fixed plate 51 extends toward the direction of the first movable plate 52 to form a plurality of equally distributed third extension blocks 511, and the fourth extension block 524 is staggered with the third extension block 511, and the right top of the first movable plate 52 extends upward to form a slider 522, and a first spring 521 is welded to the right side of the first movable plate 52.

[0049] After the oil-absorbing member 41 absorbs the oil in the oil-water mixture, the treated sewage reaches the right side of the mounting shell 2 through the fixed plate 51 and the first movable plate 52, and the treated sewage is discharged from the right side of the mounting shell 2. After the oil in the oil-absorbing member 41 is squeezed out, the oil slides along the side wall of the mounting shell 2 to the surface of the fixed plate 51. By moving the first movable plate 52, the fourth extension block 524 on one side of the first movable plate 52 is separated from the third extension block 511, so that the oil flows from the gap between the fourth extension block 524 and the third extension block 511 to the inside of the oil guide groove 22, and the oil follows the oil guide groove 22 to the inside of the oil outlet 11, and is finally discharged from the oil outlet 11, so that the device has a better oil-water separation effect.

[0050] like Figures 2 to 5 As shown, the driving member 3 extends downward to form an extrusion rod 34, and a second movable plate 53 is provided on the top of the first movable plate 52 with a sliding connection to the mounting shell 2, and a third circular hole 532 is provided inside the second movable plate 53. A water outlet 21 for accommodating water flow is provided inside the right side of the mounting shell 2, and the water outlet 21 is communicated with the third circular hole 532. A limiting block 531 is slidably connected to the inside of the second movable plate 53, and a second spring 533 is welded to the bottom of the limiting block 531. A triangular block 523 is welded at the top rear end of the first movable plate 52 at the moving trajectory of the second movable plate 53, and the cross-sectional shape of the triangular block 523 is a right triangle.

[0051] When the treated sewage reaches the right side of the mounting shell 2, the third circular hole 532 inside the second movable plate 53 is connected with the water outlet 21, and water flows from the third circular hole 532 and the water outlet 21 to the inside of the housing 1, and finally reaches the outside through the water inlet 13. When the oil in the oil-absorbing member 41 is squeezed, the connecting rod 32 moves with the squeezing rod 34, and the squeezing rod 34 moves to squeeze the limiting block 531, and the limiting block 531 is connected to the second movable plate 53. The movement of the limiting block 531 moves with the second movable plate 53, which facilitates the separation of the third circular hole 532 from the water outlet 21, so that the third circular hole 532 is staggered with the water outlet 21. After the oil in the oil-absorbing member 41 is squeezed out, the oil cannot pass through the third circular hole 532, and the oil It is on the surface of the fixed plate 51 and the first movable plate 52, and the second movable plate 53 moves again to squeeze the triangular block 523. When the triangular block 523 is squeezed, it drives the first movable plate 52 to move inside the mounting shell 2. The movement of the first movable plate 52 separates the fourth extension block 524 from the third extension block 511, which facilitates the oil on the surface of the fixed plate 51 and the first movable plate 52 to flow into the interior of the oil guide groove 22. When the second movable plate 53 is difficult to move, the extrusion rod 34 squeezes the limiting block 531 again, and the limiting block 531 retracts into the interior of the second movable plate 53, so that the connecting rod 32 can continue to move forward, making it more convenient to separate the fixed plate 51 and the first movable plate 52, and the separation is when the oil is drained.

[0052] Instructions for use: By moving the inclined plate 23, the height of the inclined plate 23 on one side of the mounting shell 2 is changed, and sewage is injected into the interior of the housing 1 from the water inlet 13. The oil on the surface of the sewage is on the surface of the water, and the water is discharged along the gap between the bottom of the mounting shell 2 and the housing 1. As more and more sewage is discharged into the housing 1 from the water inlet 13, the oil and part of the water flow into the interior of the mounting shell 2 from the blocking block 231 in the inclined plate 23. The connecting rod 32 is moved to squeeze the oil absorbing member 41 during the movement of the squeezing plate 42. The squeezing of the oil absorbing member 41 by the squeezing plate 42 can make the oil in the oil absorbing member 41 flow out from the interior of the oil absorbing member 41. After extrusion, the connecting rod 32 moves with the scraper 31 to clean the impurities attached to the surface of the blocking block 231. After the inclined surface of the extrusion groove 234 is squeezed, the inclined plate 23 will move upward. When the height of the inclined plate 23 rises, the inclined plate 23 blocks the sewage in the outer shell 1 again. After the oil in the oil suction member 41 is squeezed out, the oil slides along the side wall of the mounting shell 2 to the surface of the fixed plate 51. The connecting rod 32 moves with the second movable plate 53 to move, and the third circular hole 532 is separated from the water outlet 21, so that the third circular hole 532 is staggered with the water outlet 21, and the oil flows into the inside of the oil guide groove 22 and reaches the inside of the oil outlet 11.

[0053] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. An oil-water separation device for treating oily wastewater, comprising a housing (1), a water inlet (13) penetrating the left top of the housing (1), and a water outlet (12) penetrating the right bottom of the housing (1), characterized in that: The interior of the outer shell (1) is fixedly connected to a mounting shell (2), and a plurality of oil suction mechanisms (4) are provided on the left side of the interior of the mounting shell (2), and the plurality of oil suction mechanisms (4) are respectively located at the top middle portion and the bottom portion of the left side of the interior of the mounting shell (2); The oil suction mechanism (4) is used to collect the oil floating on the top of the sewage flowing into the installation shell (2), and multiple groups of oil suction mechanisms (4) are distributed at the top, middle and bottom, so as to collect oil at different heights; The oil suction mechanism (4) comprises a guide plate (43) fixedly connected to the mounting shell (2), and oil suction members (41) are fixedly connected to both sides of the guide plate (43), and the material of the oil suction member (41) is a hydrophobic and oleophilic sponge; The front side of the guide plate (43) is slidably connected to the extrusion plate (42); one end of the guide plate (43) close to the extrusion plate (42) is an arc surface; a first moving groove (431) is provided on the top of the guide plate (43); and a second extension block (421) is fixedly connected inside the extrusion plate (42); A driving member (3) is provided on the front side of the mounting shell (2), and the driving member (3) includes a connecting rod (32) slidably connected to the interior of the mounting shell (2), and the connecting rod (32) extends downward and is fixedly connected to the extrusion plate (42); The left side of the mounting shell (2) is slidably connected to an inclined plate (23), the top of the inclined plate (23) extends upward to form a plurality of filter screens (232), and a blocking block (231) is fixedly connected between each of the plurality of filter screens (232). The right side of the inclined plate (23) extends toward the mounting shell (2) to form a first insertion block (233), and a sliding groove (24) for accommodating the movement of the first insertion block (233) is provided inside the mounting shell (2), and the left side of the blocking block (231) is flush with the left side of the filter screen (232); The left side of the connecting rod (32) is fixedly connected to a scraper (31), the scraper (31) is in contact with the left side of the inclined plate (23), the right side of the scraper (31) extends in the direction of the inclined plate (23) to form a first extension block (312), and an extrusion groove (234) is provided inside the inclined plate (23) corresponding to the moving track of the first extension block (312), and the cross-section of the extrusion groove (234) is a right-angled trapezoid; An oil guide groove (22) is provided inside the mounting shell (2), an oil outlet (11) is welded to the rear side of the outer shell (1), the oil outlet (11) is connected to the oil guide groove (22), and a processing mechanism (5) is provided at the inner bottom of the mounting shell (2); The processing mechanism (5) comprises a fixed plate (51) fixedly connected to the left side wall of the oil guide groove (22); a first movable plate (52) slidably connected to the mounting shell (2) is provided on the right side of the fixed plate (51); the left bottom of the first movable plate (52) extends in the direction of the fixed plate (51) to form a plurality of equally spaced fourth extension blocks (524); the right top of the fixed plate (51) extends in the direction of the first movable plate (52) to form a plurality of equally spaced third extension blocks (511); the fourth extension blocks (524) and the third extension blocks (511) are staggered with each other; The driving member (3) extends downward to form an extrusion rod (34); a second movable plate (53) slidably connected to the mounting shell (2) is provided on the top of the first movable plate (52); a third circular hole (532) is provided inside the second movable plate (53); a water outlet (21) for accommodating water flow is provided inside the right side of the mounting shell (2); the water outlet (21) is connected to the third circular hole (532); a limiting block (531) is slidably connected inside the second movable plate (53); a second spring (533) is welded to the bottom of the limiting block (531); a triangular block (523) is welded at the rear end of the top of the first movable plate (52) at the moving track of the second movable plate (53); the cross-sectional shape of the triangular block (523) is a right triangle.

2. The oil-water separation device for treating oily wastewater according to claim 1, characterized in that: The left side of the scraper (31) is slidably connected to a push plate (33), and the push plate (33) extends close to the side of the scraper (31) to form an insertion plate (331), and a second circular hole (332) is provided inside the insertion plate (331), and a first circular hole (311) matching the second circular hole (332) is provided inside the scraper (31).

3. The oil-water separation device for treating oily wastewater according to claim 1, characterized in that: The top right side of the first movable plate (52) extends upward to form a slider (522), and a first spring (521) is welded to the right side of the first movable plate (52).

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