A filtering and purifying device for oil-water separation

Abstract

The present invention discloses a filtering and purifying device for oil-water separation, including a separation tank and a separation and filtration device located in the separation tank, wherein the separation tank is penetrated by a column connected to its bearing, and the top side wall and the bottom side wall of the separation tank are respectively welded and connected with an injection pipe and a drainage pipe, and the separation and filtration device is composed of an oil suction component and an oil pressure component. The filtering and purifying device for oil-water separation of the present invention is provided with an oil suction component, which promotes wastewater to pass through an oleophilic and hydrophobic membrane through external force, accelerates the filtering effect of the oleophilic and hydrophobic membrane on wastewater, and increases the absorption rate of the oil-absorbing filler on oil, thereby improving the overall operating efficiency, and the oleophilic and hydrophobic membrane and the oil-absorbing filler are split structures, and when the oil-absorbing filler is squeezed and deformed for many times, the morphology of the oleophilic and hydrophobic membrane itself will not change, thereby ensuring the filtering performance and service life of the oleophilic and hydrophobic membrane.

Description

Technical Field

[0001] The present invention relates to the technical field of filtering devices, and in particular to a filtering and purifying device for oil-water separation. Background Art

[0002] The random discharge of oily wastewater will cause water quality deterioration, air pollution, crop yield reduction, ecological environment deterioration and other adverse consequences. Therefore, oil-water separation is required for oily wastewater, which can not only recover oil substances, but also make full use of treated water resources.

[0003] For oil-water separation, the prior art (CN115228142B) discloses an oil-water separation filter, which absorbs the oil in the oil-water mixture through the filler in the second tube body to separate the oil and water in the oil-water mixture. In addition, through the above arrangement, after collecting the water in the oil-water mixture, the oil can be collected separately, and the oil absorbed in the filler can be squeezed by the pressure plate, so that the accuracy of oil-water separation filtration can be guaranteed.

[0004] However, the above technology absorbs the oil in the oily wastewater through fillers. This method is passive absorption with a slow absorption rate, which is not conducive to the overall operation efficiency.

[0005] Moreover, when the filler has completely absorbed the oil, the separated water will flow from the multiple through holes on the second tube body to the area inside the first tube body and outside the second tube body, and then be discharged from the water outlet. After the oil in the filler is squeezed out, it will also flow from the through holes on the second tube body to the area inside the first tube body and outside the second tube body. In this way, the flow paths of water and oil are consistent, and secondary mixing will occur, causing the separated water to be mixed with oil again, greatly reducing the separation effect.

[0006] Since the filler is a sponge, which is an elastic material, when the filler is squeezed, the oleophilic and hydrophobic material on the surface of the filler will also be squeezed and deformed. After multiple squeezing, the oleophilic and hydrophobic material may be damaged, which is not conducive to the oil absorption effect of the filler and the separation and filtration of oil and water.

[0007] In summary, the current prior art still has defects and needs to be improved. Summary of the invention

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0009] Therefore, the object of the present invention is to provide a filtering and purifying device for oil-water separation, comprising a separation tank and a separation filtering device located in the separation tank, wherein a column connected to a bearing thereof is passed through the separation tank, and an injection pipe and a drainage pipe are respectively welded to the top side wall and the bottom side wall of the separation tank.

[0010] The separation and filtration device is composed of an oil suction component and an oil pressure component.

[0011] The oil suction assembly includes a set of fixed frames welded to the columns, a set of inner side plates welded to the columns, a top plate and a bottom plate arranged parallel to each other, and a set of outer side plates fitted to the inner wall of the separation tank.

[0012] The column passes through the top plate and the bottom plate, and the top plate, the bottom plate, the inner plate and the outer plate are all welded and fixed to the fixed frame. Two grid plates are arranged on the inner frame wall of the fixed frame, and an oleophilic and hydrophobic film is fixed to the inner side of the grid plate. Two rectangular chambers are formed between the fixed frame, the top plate, the bottom plate, the inner plate, the outer plate and the grid plate, and oil-absorbing fillers are arranged in the two rectangular chambers, and the oil-absorbing fillers are fitted with the grid plate.

[0013] The oil pressure assembly includes a movable plate located in a rectangular chamber, and a group of cross bars for guiding the movable plate. The cross bars pass through the oil absorption filler. One end of the cross bars passes through the inner plate and is welded to the column. A vertical bar is inserted into the column. Two steel wire ropes are arranged on the vertical bar.

[0014] The movable plate is provided with a circular through slot for the cross bar to pass through, the bottom of the cross bar is provided with a long strip-shaped opening slot, a movable block is arranged inside the cross bar, the bottom of the movable block vertically extends upward to form a convex block, the convex block passes through the opening slot and is welded to the slot wall of the through slot,

[0015] One end of the steel wire rope extends into the cross bar and is welded and fixed to one end of the movable block.

[0016] As the preferred technical solution:

[0017] In the filtering and purifying device for oil-water separation as described above, a gear is fixed to the top bayonet of the column, the gear is meshedly connected with a rack, a guide rod slidably connected to the rack passes through the rack, one end of the guide rod is welded and fixed to a fixing seat, and the bottom end of the fixing seat is fixed to the top of the separation tank;

[0018] The side wall of the separation tank is bolted with a second motor, and the output shaft of the second motor is connected to the rack transmission through a crank connecting rod.

[0019] Through the above technical solution and the design of the crank-connecting rod, after the second motor is powered on, the crank-connecting rod can drive the rack to move back and forth horizontally along the guide rod, and then the rack can drive the column to continuously rotate forward and reverse through the meshing action with the gear, and the structure is reasonable.

[0020] In the filtering and purification device for oil-water separation as described above, the top of the column is sleeved with a support ring welded thereto, a first motor is bolted to the support ring, an output shaft of the first motor is connected to the top of the vertical rod, and the first motor is connected to the external power grid via a conductive slip ring.

[0021] Through the above technical solution, since the vertical rod will rotate synchronously with the column, and then the first motor will also rotate accordingly, in order to ensure that the first motor can be connected to the power grid in the rotating state, a corresponding conductive slip ring is provided, and the conductive slip ring can also prevent the cable from being entangled due to the rotation of the first motor.

[0022] In the above-mentioned filtering and purifying device for oil-water separation, the bottom plate is a hollow structure, the top surface of the bottom plate is porous, and a through hole for the column to penetrate is opened on the bottom plate.

[0023] The hole wall of the through hole is open, the bottom plate at the hole wall of the through hole is welded to the outer wall of the column, and a plurality of oil guide holes are provided on the wall body at the welding point between the column and the bottom plate.

[0024] Through the above technical solution, the bottom plate's own structural design enables the squeezed oil to drip onto the bottom plate surface when the oil-absorbing filler is squeezed, and to flow into the bottom plate through the holes on the bottom plate surface, thereby completing the collection of the oil.

[0025] In the filtering and purifying device for oil-water separation as described above, the outer side surface of the outer plate is an arc-shaped structure, and the outer side surface of the outer plate is coated with a polytetrafluoroethylene coating.

[0026] Through the above technical solution, the polytetrafluoroethylene coating has a low friction coefficient, and thus the friction between the polytetrafluoroethylene coating and the separation tank is small, which reduces the wear of the outer plate itself and increases the service life of the outer plate.

[0027] In the filtering and purification device for oil-water separation as described above, the top and bottom ends of the grid plate are both protruding with T-shaped sliding rails, the inner walls of the top and bottom ends of the fixed frame are both provided with sliding grooves adapted to the sliding rails, and one side of the sliding rail is welded to the sliding groove via a first spring.

[0028] Through the above technical solution, the sliding rail can slide linearly in the sliding groove, and then under the cooperation between the sliding rail and the sliding groove, the two grid plates can move towards each other or away from each other.

[0029] In the above-mentioned filtering and purifying device for oil-water separation, the crossbar is a hollow structure, a circular partition is welded and fixed on the inner wall of the crossbar, and the partition and the movable block are welded and connected by a second spring.

[0030] The movable block is a cylindrical structure, the movable block and the cross bar share a common axis, and the outer circular wall of the movable block fits with the inner wall of the cross bar.

[0031] Through the above technical solution, the crossbar is also a cylindrical structure, and the shape design of the movable block allows the movable block to fit the inner wall of the crossbar and move axially horizontally, thereby driving the grid plate to move synchronously.

[0032] In the filtering and purifying device for oil-water separation as described above, the top end of the movable plate fits with the bottom surface of the top plate, and the bottom end of the movable plate fits with the top surface of the bottom plate;

[0033] The movable plate is fixedly bonded to one side of the oil absorption filler, and the other side of the oil absorption filler is fixedly bonded to the inner plate.

[0034] Through the above technical solution, when the movable plate moves toward the inner plate, the oil-absorbing filler can be squeezed to squeeze out the oil in the oil-absorbing filler. When the movable plate moves away from the inner plate, the oil-absorbing filler that has been squeezed and deformed can be stretched to ensure that the oil-absorbing filler can be restored to its original state.

[0035] In the above-mentioned filtering and purifying device for oil-water separation, a group of horizontal plates are welded to the top and bottom ends of the movable plate, and a group of magnet blocks are embedded on one side of the horizontal plate facing the grid plate.

[0036] The grid plate has two magnet bars embedded in one side facing the horizontal plate, and the opposite sides of the magnet bars and the magnet blocks have the same magnetic poles.

[0037] Through the above technical solution, the arrangement of the magnet bars and the magnet blocks can generate repulsive force when the two are relative to each other, and then under the action of the repulsive force, the grid plate can be pushed to move.

[0038] In the filtering and purifying device for oil-water separation as described above, the column is a hollow structure, both ends of the column extend from the separation tank, the bottom end of the column is open, and the top end of the column is closed;

[0039] The top end of the vertical rod passes through the center of the top end of the column and is connected to the column bearing. A hole groove for the wire rope to pass through is opened on the vertical rod.

[0040] Through the above technical solution, the structural design of the column itself allows the separated oil to flow out along the bottom of the column after flowing into the interior of the column, thereby completing the collection of the oil. In this way, the flow paths of the oil and water are different, avoiding cross contamination and ensuring the filtering and purification effect.

[0041] Beneficial effects:

[0042] (1) A filtering and purification device for oil-water separation of the present invention is provided with an oil absorption assembly, which includes two rectangular chambers and an oil absorption filler located in the rectangular chambers. When oil-containing wastewater is separated and filtered, the two rectangular chambers can rotate back and forth with the column, and the wastewater can be driven to flow by the rotation. When the wastewater is driven to flow clockwise, the two rectangular chambers can switch the rotation direction, rotate counterclockwise and contact the wastewater flowing clockwise. At this time, the flowing wastewater has a certain kinetic energy, so that the wastewater is forced to pass through the oleophilic and hydrophobic membrane through external force, thereby accelerating the filtering effect of the oleophilic and hydrophobic membrane on the wastewater and increasing the absorption rate of the oil absorption filler on the oil, thereby improving the overall operating efficiency.

[0043] (2) The filtering and purification device for oil-water separation of the present invention is provided with an oil pressing assembly. When the oleophilic and hydrophobic membrane cooperates with the oil-absorbing filler to absorb the oil in the oil-containing wastewater, the oil-absorbing filler can be squeezed by pulling the movable plate to squeeze the oil in the oil-absorbing filler. The squeezed oil is discharged along the column, and the wastewater after the oil-liquid separation can be discharged through the drain pipe, thereby being separated from the oil flow path, avoiding cross contamination, and ensuring the purification effect of the wastewater.

[0044] (3) In a filtering and purifying device for oil-water separation of the present invention, the oleophilic and hydrophobic membrane and the oil-absorbing filler are of a split structure. When the oil-absorbing filler is squeezed and deformed multiple times, the morphology of the oleophilic and hydrophobic membrane itself does not change, thereby ensuring the filtering performance and service life of the oleophilic and hydrophobic membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which

[0046] Figure 1 It is an internal front view of the present invention;

[0047] Figure 2 A top view of the present invention;

[0048] Figure 3 It is a three-dimensional exploded view of the fixing frame, top plate and bottom plate of the present invention;

[0049] Figure 4 It is a top cross-sectional perspective view of the present invention;

[0050] Figure 5 For the present invention Figure 1 Middle AA section view;

[0051] Figure 6 It is a cross-sectional view of the column and the base plate of the present invention;

[0052] Figure 7A three-dimensional diagram of the grid plate and the movable plate of the present invention;

[0053] Figure 8 It is a cross-sectional view of the column and the crossbar of the present invention;

[0054] Fig. 9 For the present invention Figure 5 Enlarged view of point B.

[0055] In the figure: 1, separation tank; 2, column; 3, drain pipe; 4, fixed frame; 5, top plate; 6, bottom plate; 7, inner plate; 8, outer plate; 9, grid plate; 10, oil absorption filler; 11, cross bar; 12, movable plate; 13, vertical bar; 14, wire rope; 15, oil guide hole; 16, gear; 17, rack; 18, guide rod; 19, fixed seat; 20, support ring; 21, first motor; 22, second motor; 23, cross plate; 24, magnet bar; 25, magnet block; 26, sliding rail; 27, sliding groove; 28, first spring; 29, opening groove; 30, movable block; 31, second spring; 32, partition; 33, through hole. DETAILED DESCRIPTION

[0056] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0058] like Figure 1-9 As shown, a filtering and purifying device for oil-water separation comprises a separation tank 1 and a separation filtering device located in the separation tank 1, wherein the separation filtering device comprises an oil suction component and an oil pressure component.

[0059] like Figure 1 and Figure 2 As shown, the separation tank 1 is penetrated by a column 2 connected to its bearing, the top side wall and the bottom side wall of the separation tank 1 are respectively welded with an injection pipe and a drainage pipe 3, the column 2 is a hollow structure, both ends of the column 2 extend from the separation tank 1, the bottom end of the column 2 is open, and the top end of the column 2 is closed, the top end of the column 2 is fixed with a gear 16 by a bayonet, the gear 16 is meshed and connected with a rack 17, and a guide rod 18 slidably connected to the rack 17 is penetrated by the rack 17, one end of the guide rod 18 is welded and fixed to a fixing seat 19, and the bottom end of the fixing seat 19 is fixed to the top of the separation tank 1;

[0060] A second motor 22 is bolted to the side wall of the separation tank 1 , and an output shaft of the second motor 22 is transmission-connected to the rack 17 via a crank connecting rod.

[0061] The rack 17 can move linearly along the guide rod 18, and then after the second motor 22 is running, the rack 17 can be driven to move back and forth through the crank connecting rod structure, and the rack 17 can drive the column 2 to continuously rotate forward and reverse on the separation tank 1 through the meshing action with the gear 16.

[0062] During operation, the oily wastewater can be added into the separation tank 1 through the injection pipe. Under the action of the oil absorption component, the oil in the wastewater can be separated. By opening the drain pipe 3, the wastewater in the separation tank 1 can be discharged. Under the action of the oil pressure component, the separated oil can be squeezed into the column 2, and the oil can be discharged through the bottom of the column 2.

[0063] Furthermore, the device can filter and separate oil and water, and the separated oil and water will not be cross-contaminated again, thereby improving the filtering and purification effect.

[0064] like Figure 1 and Figure 3 As shown, the oil suction assembly includes a set of fixing frames 4 welded and fixed to the columns 2, a set of inner side plates 7 welded and fixed to the columns 2, a top plate 5 and a bottom plate 6 arranged in parallel up and down, and a set of outer side plates 8 fitted to the inner wall of the separation tank 1, the outer side surface of the outer side plate 8 is an arc structure, and the outer side surface of the outer side plate 8 is coated with a polytetrafluoroethylene coating.

[0065] The column 2 passes through the top plate 5 and the bottom plate 6. The top plate 5, the bottom plate 6, the inner plate 7 and the outer plate 8 are all welded and fixed to the fixed frame 4. Two grid plates 9 are arranged on the inner frame wall of the fixed frame 4. The inner side of the grid plate 9 is fitted with an oleophilic and hydrophobic film. Two rectangular chambers are formed between the fixed frame 4, the top plate 5, the bottom plate 6, the inner plate 7, the outer plate 8 and the grid plate 9. Oil-absorbing fillers 10 are arranged in the two rectangular chambers, and the oil-absorbing fillers 10 are fitted with the grid plate 9.

[0066] After the column 2 rotates, it can drive the two fixed frames 4, the top plate 5 and the bottom plate 6 to rotate, and then the fixed frame 4 can drive the grid plate 9 and the oil-absorbing filler 10 in the rectangular chamber to rotate synchronously. When the column 2 changes from clockwise to counterclockwise rotation, since the flow mode of the wastewater at this time is still clockwise, the wastewater will collide with the grid plate 9. Under the action of its own kinetic energy, the wastewater can be prompted to pass through the oleophilic and hydrophobic membrane on the grid plate 9, so that the oil in the wastewater passes through the oleophilic and hydrophobic membrane into the rectangular chamber and is absorbed by the oil-absorbing filler 10. The oil-absorbing filler 10 is specifically a polyurethane sponge with good elasticity and water absorption. The oleophilic and hydrophobic membrane can be selected from polyvinylidene fluoride (PVDF) membrane, polytetrafluoroethylene (PTFE) membrane and polypropylene (PP) membrane.

[0067] The column 2 can filter the wastewater multiple times by rotating clockwise and counterclockwise alternately until all the oil in the wastewater is separated and adsorbed by the oil-absorbing filler 10.

[0068] like Figure 4 and Figure 5 As shown, the oil pressure assembly includes a movable plate 12 located in a rectangular chamber, and a group of cross bars 11 for guiding the movable plate 12. The cross bar 11 passes through the oil absorption filler 10, and one end of the cross bar 11 passes through the inner plate 7 and is welded to the column 2. The movable plate 12 is fixedly bonded to one side of the oil absorption filler 10, and the other side of the oil absorption filler 10 is fixedly bonded to the inner plate 7. The top end of the movable plate 12 is in contact with the bottom surface of the top plate 5, and the bottom end of the movable plate 12 is in contact with the top surface of the bottom plate 6.

[0069] The cross bar 11 not only guides the movable plate 12, but also serves as an auxiliary support for the oil-absorbing filler 10. When the separated water is discharged through the drain pipe 3, the oil in the oil-absorbing filler 10 needs to be collected. The movable plate 12 can move horizontally along the cross bar 11 at this time, so as to squeeze the oil-absorbing filler 10 to squeeze out the oil. When the oil is completely squeezed out, the movable plate 12 can also assist the oil-absorbing filler 10 to restore its deformation by resetting, thereby ensuring the subsequent oil absorption effect of the oil-absorbing filler 10.

[0070] like Figure 6 As shown, the bottom plate 6 is a hollow structure, the top surface of the bottom plate 6 is porous, and a through hole 33 for the column 2 to penetrate is opened on the bottom plate 6.

[0071] The hole wall of the through hole 33 is open, the bottom plate 6 at the hole wall of the through hole 33 is welded to the outer wall of the column 2, and a plurality of oil guide holes 15 are formed in the wall body at the welding point between the column 2 and the bottom plate 6.

[0072] The oil squeezed out of the oil-absorbing filler 10 will drip onto the bottom plate 6, and the oil will flow into the bottom plate 6 through the holes on the surface of the bottom plate 6, so that the oil can be preliminarily collected. At this time, the collected oil will flow into the column 2 again through the oil guide hole 15, and be discharged through the opening at the bottom of the column 2, thereby realizing the separate collection of the oil.

[0073] like Figure 1 As shown, a vertical rod 13 is inserted into the column 2, the top of the vertical rod 13 passes through the center of the top of the column 2 and is connected to the bearing of the column 2, the top of the column 2 is sleeved with a support ring 20 welded to it, and a first motor 21 is bolted to the support ring 20, the output shaft of the first motor 21 is connected to the top of the vertical rod 13, and the first motor 21 is connected to the external power grid through a conductive slip ring.

[0074] The vertical rod 13 can rotate synchronously with the column 2. When the column 2 stops running or is in the process of rotating, the first motor 21 can be powered on and drive the vertical rod 13 to rotate.

[0075] like Figure 7 and Figure 8 As shown, a circular through slot for the cross bar 11 to pass through is provided on the movable plate 12, a long strip-shaped opening slot 29 is provided at the bottom of the cross bar 11, a movable block 30 is provided inside the cross bar 11, and a convex block is formed at the bottom of the movable block 30 extending vertically upward, and the convex block passes through the opening slot 29 and is welded to the slot wall of the through slot;

[0076] The crossbar 11 is a hollow structure. A circular partition 32 is welded and fixed on the inner wall of the crossbar 11. The partition 32 and the movable block 30 are welded and connected by a second spring 31. The movable block 30 is a cylindrical structure. The movable block 30 and the crossbar 11 are coaxial. The outer wall of the movable block 30 fits the inner wall of the crossbar 11.

[0077] Two steel wire ropes 14 are arranged on the vertical rod 13 . A hole groove for the steel wire ropes 14 to pass through is opened on the vertical rod 13 . One end of the steel wire rope 14 extends into the cross rod 11 and is welded and fixed to one end of the movable block 30 .

[0078] When the vertical rod 13 rotates, it can reel in the steel wire rope 14, so as to pull the movable block 30 to move inside the cross bar 11 through the steel wire rope 14, and the protrusion can move in the opening groove 29 along with the movable block 30, and the protrusion can drive the movable plate 12 to move along the cross bar 11, and the movable plate 12 can squeeze the oil absorption filler 10 when moving;

[0079] When the oil in the oil-absorbing filler 10 is squeezed out, the first motor 21 drives the vertical rod 13 to reverse. Since the movable block 30 will continuously compress the second spring 31 during the movement toward the partition 32, the second spring 31 will recover its deformation at this time, and under the action of the elastic force of the second spring 31, the movable block 30 can be driven to reset. The movable block 30 drives the movable plate 12 to reset through the protrusion, and the steel wire rope 14 wound on the vertical rod 13 can be stretched.

[0080] like Figure 5 , Figure 7 and Fig. 9 As shown, T-shaped sliding rails 26 protrude from the top and bottom of the grid plate 9, and sliding grooves 27 adapted to the sliding rails 26 are opened on the inner walls of the top and bottom of the fixed frame 4, and one side of the sliding rail 26 is welded to the sliding groove 27 through a first spring 28.

[0081] A set of transverse plates 23 are welded to the top and bottom of the movable plate 12, and a set of magnet blocks 25 are embedded on the side of the transverse plate 23 facing the grid plate 9.

[0082] Two magnet strips 24 are embedded in the grid plate 9 on one side facing the horizontal plate 23, and the opposite sides of the magnet strip 24 and the magnet block 25 have the same magnetic poles.

[0083] Since the oil-absorbing filler 10 is fitted with the oleophilic and hydrophobic membrane, in order to prevent the oil from being squeezed out along the oleophilic and hydrophobic membrane when the oil-absorbing filler 10 is squeezed, a magnet bar 24 and a magnet block 25 are provided. When the movable plate 12 moves, the magnet block 25 is driven to move through the cross plate 23. After the movement, the magnet block 25 will fit with the magnet bar 24. The magnet bar 24 and the magnet block 25 will generate a repulsive force, which pushes the mesh plate 9 to move, so that the two mesh plates 9 will move away from each other. At this time, there will be a gap between the two sides of the oil-absorbing filler 10 and the mesh plate 9, and the squeezed oil can flow downward along the gap and flow into the bottom plate 6.

[0084] When the grid plate 9 moves, the sliding rail 26 will move along the sliding groove 27 and compress the first spring 28. When the movable plate 12 is reset, the cross plate 23 will move accordingly and drive the magnet block 25 to separate from the magnet bar 24. At this time, the repulsive force disappears. Under the elastic force of the first spring 28, the sliding rail 26 will reset along the sliding groove 27 and drive the grid plate 9 to reset.

[0085] In the description of this specification, "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filtering and purifying device for oil-water separation, comprising a separation tank (1) and a separation filtering device located in the separation tank (1), wherein the separation tank (1) is penetrated by a column (2) connected to its bearing, and the top side wall and the bottom side wall of the separation tank (1) are respectively welded to an injection pipe and a drainage pipe (3) connected thereto, characterized in that: The separation and filtration device is composed of an oil suction component and an oil pressure component. The oil suction assembly comprises a set of fixing frames (4) welded to the columns (2), a set of inner side plates (7) welded to the columns (2), a top plate (5) and a bottom plate (6) arranged parallel to each other, and a set of outer side plates (8) fitted to the inner wall of the separation tank (1). The upright column (2) passes through the top plate (5) and the bottom plate (6); the top plate (5), the bottom plate (6), the inner plate (7), and the outer plate (8) are all welded and fixed to the fixed frame (4); two mesh plates (9) are arranged on the inner frame wall of the fixed frame (4); an oleophilic and hydrophobic film is fixedly bonded to the inner side surface of the mesh plate (9); two rectangular chambers are formed between the fixed frame (4), the top plate (5), the bottom plate (6), the inner plate (7), the outer plate (8), and the mesh plate (9); oil-absorbing fillers (10) are arranged in the two rectangular chambers; the oil-absorbing fillers (10) are bonded to the mesh plate (9); The oil pressure assembly comprises a movable plate (12) located in a rectangular chamber, and a group of cross bars (11) for guiding the movable plate (12), wherein the cross bars (11) pass through the oil absorption filler (10), one end of the cross bars (11) passes through the inner plate (7) and is welded to the column (2), a vertical bar (13) is inserted into the column (2), and two steel wire ropes (14) are arranged on the vertical bar (13). The movable plate (12) is provided with a circular through slot for the cross bar (11) to pass through, the bottom of the cross bar (11) is provided with a long strip-shaped opening slot (29), a movable block (30) is arranged inside the cross bar (11), the bottom of the movable block (30) vertically extends upward to form a convex block, the convex block passes through the opening slot (29) and is welded to the slot wall of the through slot, One end of the steel wire rope (14) extends into the cross bar (11) and is welded and fixed to one end of the movable block (30); The top end of the upright column (2) is sleeved with a support ring (20) welded thereto, a first motor (21) is bolted to the support ring (20), an output shaft of the first motor (21) is butt-jointed with the top end of the vertical rod (13), and the first motor (21) is butt-jointed with an external power grid via a conductive slip ring; A group of transverse plates (23) are welded to the top and bottom of the movable plate (12), and a group of magnet blocks (25) are embedded in the side of the transverse plate (23) facing the grid plate (9). Two magnet strips (24) are embedded in the grid plate (9) on one side facing the horizontal plate (23), and the opposite sides of the magnet strips (24) and the magnet blocks (25) have the same magnetic poles.

2. A filtering and purifying device for oil-water separation according to claim 1, characterized in that: A gear (16) is fixed to a top pin of the column (2), the gear (16) is meshingly connected to a rack (17), a guide rod (18) slidably connected to the rack (17) passes through the rack (17), one end of the guide rod (18) is welded and fixed to a fixing seat (19), and the bottom end of the fixing seat (19) is fixed to the top of the separation tank (1); A second motor (22) is bolted to the side wall of the separation tank (1), and an output shaft of the second motor (22) is transmission-connected to a rack (17) via a crank connecting rod.

3. The filtering and purifying device for oil-water separation according to claim 1, characterized in that: The bottom plate (6) is a hollow structure, the top surface of the bottom plate (6) is porous, and a through hole (33) for the column (2) to penetrate is provided on the bottom plate (6). The hole wall of the through hole (33) is open, the bottom plate (6) at the hole wall of the through hole (33) is welded to the outer wall of the column (2), and a plurality of oil guide holes (15) are provided on the wall body at the welding point between the column (2) and the bottom plate (6).

4. The filtering and purifying device for oil-water separation according to claim 1, characterized in that: The outer side surface of the outer plate (8) is an arc-shaped structure, and the outer side surface of the outer plate (8) is coated with a polytetrafluoroethylene coating.

5. The filtering and purifying device for oil-water separation according to claim 1, characterized in that: The top and bottom ends of the grid plate (9) are both protruding with T-shaped sliding rails (26), and the inner walls of the top and bottom ends of the fixed frame (4) are both provided with sliding grooves (27) adapted to the sliding rails (26), and one side of the sliding rail (26) is welded to the sliding groove (27) via a first spring (28).

6. The filtering and purifying device for oil-water separation according to claim 1, characterized in that: The cross bar (11) is a hollow structure, and a circular partition (32) is welded and fixed on the inner wall of the cross bar (11). The partition (32) and the movable block (30) are welded and connected via a second spring (31). The movable block (30) is a cylindrical structure; the movable block (30) and the cross bar (11) are coaxial; and the outer circular wall of the movable block (30) fits the inner wall of the cross bar (11).

7. The filtering and purifying device for oil-water separation according to claim 1, characterized in that: The top end of the movable plate (12) is in contact with the bottom surface of the top plate (5), and the bottom end of the movable plate (12) is in contact with the top surface of the bottom plate (6); The movable plate (12) is fixedly bonded to one side of the oil absorption filler (10), and the other side of the oil absorption filler (10) is fixedly bonded to the inner plate (7).

8. The filtering and purifying device for oil-water separation according to claim 1, characterized in that: The column (2) is a hollow structure, both ends of the column (2) extend out of the separation tank (1), the bottom end of the column (2) is open, and the top end of the column (2) is closed; The top end of the vertical rod (13) passes through the center of the top end of the column (2) and is connected to the bearing of the column (2). The vertical rod (13) is provided with a hole groove for the steel wire rope (14) to pass through.

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