Sewage treatment device for oil exploitation

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device for oil exploitation, comprising a sewage treatment tank, the top of the sewage treatment tank is provided with a water inlet pipe, both sides of the sewage treatment tank are provided with side grooves, and the inner side walls of the side grooves on both sides are rotatably connected with reciprocating threaded rods; a transmission belt is connected between the reciprocating threaded rods on the two sides in a sleeving mode, through arrangement of a filtering main plate in the primary filtering mechanism, the filtering main plate can firstly filter and clean large solid impurities in the oil exploitation sewage, and after the filtering main plate cleans the solid impurities in the sewage, the filtering main plate can filter and clean the large solid impurities in the sewage; the whole filtering main plate can stir sewage in the sewage treatment box, when the sewage is stirred, the filtering main plate can spray a flocculating agent into the sewage through a water wheel and other mechanisms, small suspended particles are flocculated into large blocks, then the large blocks are filtered again, and through multi-stage treatment of solid impurities and fine suspended particles, the solid impurities and the fine suspended particles can be separated and purified. The sewage treatment effect can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device for oil production. Background Art

[0002] The role of oil in the national economy Oil is an important energy source. Liquefied gas and pipeline gas made from oil are high-quality fuels for urban residents' daily life. Oil is a fluid mineral buried deep underground. Oil extraction refers to the act of digging and extracting oil where it is stored. In the process of oil extraction, oil and gas flow from the reservoir to the bottom of the well, and then rise from the bottom of the well to the wellhead. A large amount of sewage and wastewater will be generated in oil extraction. These wastewaters contain many harmful substances, which are not only difficult to degrade and cause great harm to the environment, but also difficult to treat.

[0003] Referring to the comparative document, the publication number is CN221267320U. This utility model belongs to the field of sewage treatment devices, and specifically relates to a sewage treatment device for oil extraction, including a treatment box, a conical ring is slidably connected to the inner side of the treatment box, a filter cone is fixedly connected to the inner side of the conical ring, an elastic support mechanism is arranged below the conical ring, a box cover is installed on the top of the treatment box by bolts, an anti-blocking slag discharge mechanism is arranged in the middle of the box cover, a feed inlet is fixedly connected to the inside of the treatment box and located on the left side of the anti-blocking slag discharge mechanism, a liquid discharge port is fixedly connected to the bottom of the treatment box, and a slag discharge port is opened on the side wall of the treatment box and located below the conical ring. By arranging a filter cone inside the treatment box, the sewage can be separated into solid and liquid by the filter cone after entering the treatment box. In addition, the steel brush is driven to rotate by an electric motor, and the surface of the filter cone can be scratched to prevent the mesh of the filter cone from being blocked, thereby ensuring the normal solid-liquid separation.

[0004] Although the comparative document uses filter cones to filter wastewater from oil production, in actual use, when treating wastewater from oil extraction, it is usually necessary to adopt a multi-stage treatment method. First, filter out the larger solids inside. For example, in the oil refining process, there are impurities such as sludge containing a large amount of crude oil and solid impurities. After the solids are filtered out, it is usually necessary to filter the suspended particles in the oil wastewater. However, due to the small particle size of the fine suspended particles, it is difficult to filter them with ordinary filter plates. Usually, flocculation is required before filtering. The comparative document lacks the flocculation treatment process for the wastewater, so only a single larger solid impurity can be filtered, and the filtering effect is incomplete. Summary of the invention

[0005] The purpose of the present invention is to provide a sewage treatment device for oil production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sewage treatment device for oil extraction, comprising a sewage treatment box, a water inlet pipe is arranged on the top of the sewage treatment box, side grooves are opened on both sides of the sewage treatment box, the inner side walls of the side grooves on both sides are rotatably connected with reciprocating threaded rods, a transmission belt is sleeved between the reciprocating threaded rods on both sides, a mounting frame is fixedly connected to the outer side wall of the sewage treatment box, a starting motor is fixedly connected to the outer side wall of the mounting frame, the output end of the starting motor is connected to one of the ends of the reciprocating threaded rods on both sides, and a primary filtering mechanism is arranged inside the side grooves;

[0007] The primary filtering mechanism includes a driving member slidably arranged inside the side groove, the middle part of the driving member is threadedly sleeved on the reciprocating threaded rod, the driving member is provided with an electric flip shaft, the electric flip shaft is fixedly connected with a filter main board, a plurality of filter plates are rotatably connected to the filter main board, a stirring plate is arranged on the back of the plurality of filter plates, a plurality of filter holes are opened on the plurality of filter plates, a rotating rod is arranged at the end of the plurality of filter plates, the rotating rod is hollow, a flip gear is arranged at the end of the plurality of rotating rods, a rack is slidably connected inside the filter main board, and the rack is meshed with a plurality of flip gears.

[0008] Preferably, a fixing piece is fixedly connected to the outer side wall of the rack, an electric telescopic rod is fixedly connected to the inside of the filter main board, the end of the electric telescopic rod is fixedly connected to the fixing piece, and a post-flocculation mechanism is provided at the bottom of the filter plate.

[0009] Preferably, the post-flocculation mechanism includes a recoil piece arranged on the back of the filter plate, an infusion tube is fixedly connected to the interior of the filter plate, the infusion tube is connected to the interior of the rotating rod, a side tube is arranged inside the recoil piece, one end of the side tube away from the recoil piece is connected to the interior of the filter plate, a recoil hole is opened inside the side tube, and the recoil hole penetrates into the interior of the filter hole.

[0010] Preferably, a branch pipe is provided inside the infusion pipe, one end of the branch pipe away from the infusion pipe is connected to the inside of the recoil member, and the end of the branch pipe is rotatably connected to a water wheel.

[0011] Preferably, a disc is provided at the end of the water wheel, a liquid inlet hole is opened inside the disc, and the liquid inlet hole passes through the water wheel and is connected to the inside of the branch pipe.

[0012] Preferably, a circular tube is fixedly connected to the circular disc, a through hole is opened inside the circular tube, the through hole is connected to the interior of the circular disc, a baffle is slidably connected to the interior of the circular tube, a tension spring is fixedly connected to the outer wall of the lower end of the baffle, the end of the tension spring away from the baffle is fixedly connected to the inner wall of the circular tube, and a side hole is opened inside the circular tube.

[0013] Preferably, a plurality of covering rings are fixedly connected to the inside of the side wall of the filter main board, and the plurality of covering rings are rotatably connected to the corresponding rotating rods respectively. A liquid inlet pipe is provided inside the covering rings, and a plurality of through holes corresponding to the liquid inlet pipe are provided on the rotating rod. A liquid storage tank is fixedly connected to the side wall of the filter main board, and the end of the liquid inlet pipe away from the covering ring is connected to the inside of the liquid storage tank.

[0014] Preferably, a plurality of bottom holes are provided at the bottom of the filter main board, the bottom of the filter main board is fixedly connected to a bottom box, a mass filter plate is slidably connected inside the bottom box, pressure springs are provided on both sides of the mass filter plate, the other end of the pressure spring is connected to the inner wall of the bottom box, a trigger magnet is fixedly connected to the tail of the mass filter plate, and an electromagnet is provided inside the bottom box.

[0015] Preferably, a drain outlet is provided at the bottom of the sewage treatment tank, an electromagnetic switch valve is provided inside the drain outlet, an external drain pipe is provided inside the drain outlet, a sewage storage box is fixedly connected to the outer wall of the sewage treatment tank, a feed port is provided inside the sewage storage box, and the feed port passes through the interior of the sewage treatment tank.

[0016] Preferably, a liquid filling port is provided at the back of the liquid storage tank, and a sealing port corresponding to the liquid filling port is provided at the back of the sewage treatment tank.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the setting of the filter mainboard in the primary filtering mechanism, the filter mainboard will first filter and clean the larger solid impurities in the oil extraction wastewater. When the filter mainboard has finished cleaning the solid impurities in the wastewater, the entire filter mainboard will stir the sewage in the sewage treatment tank. When stirring the sewage, the filter mainboard will spray flocculants into the sewage through mechanisms such as water wheels, flocculate smaller suspended particles into larger clumps, and then filter again. The multi-stage treatment method of first filtering solid impurities and then treating fine suspended particles can improve the sewage treatment effect.

[0019] 2. While the filter main board is stirring the sewage in the sewage treatment tank and spraying flocculant, the recoil piece will also recoil the filter holes through recoil holes and other mechanisms to avoid clogging of the filter holes when filtering larger impurities, thereby improving the filtering effect of the entire filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0022] Figure 3 It is a side structural schematic diagram of the present invention;

[0023] Figure 4 The filter mainboard structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 5 The filter mainboard structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 6 The local structure of the filter mainboard of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 7 for Figure 6 A magnified view of middle;

[0027] Figure 8 This is a schematic diagram of the structure of the filter mainboard of the present invention in a flipped state;

[0028] Fig. 9 The local structure of the filter mainboard of the present invention is shown in FIG. Figure 2 ;

[0029] Fig.10 The local structure of the filter mainboard of the present invention is shown in FIG. Figure 3 ;

[0030] Fig.11 It is a schematic diagram of the water wheel structure of the present invention;

[0031] Fig.12 It is a schematic diagram of the rotating rod structure of the present invention;

[0032] Fig.13 It is a schematic diagram of the side structure of the filter plate of the present invention;

[0033] Fig.14 This is a schematic diagram of the bottom structure of the filter mainboard of the present invention;

[0034] Fig.15 It is a schematic diagram of the internal structure of the filter mainboard of the present invention.

[0035] In the attached drawings, the parts represented by the various reference numerals are as follows: 1. Sewage treatment tank; 2. Water inlet pipe; 3. Starter motor; 4. Mounting frame; 5. Transmission belt; 6. Reciprocating threaded rod; 7. Side groove; 8. Drain port; 9. External drain pipe; 10. Filter main board; 11. Sealing port; 12. Driving member; 13. Sewage storage box; 14. Feed port; 15. Electric turning shaft; 16. Filter plate; 17. Liquid storage tank; 18. Liquid filling port; 19. Rotating rod; 20. Rack; 21. Turning gear; 22. Fixing member ; 23. Electric telescopic rod; 24. Stirring plate; 25. Bottom hole; 26. Recoil piece; 27. Infusion tube; 28. Recoil hole; 29. ​​Filter hole; 30. Branch pipe; 31. Water wheel; 32. Disc; 33. Liquid inlet hole; 34. Round tube; 35. Through hole; 36. Baffle; 37. Tension spring; 38. Side hole; 39. Liquid inlet pipe; 40. Covering ring; 41. Through hole; 42. Bottom box; 43. Agglomerate filter plate; 44. Press spring; 45. Electromagnet; 46. Trigger magnet; 47. Side tube. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1 - Fig.14 A sewage treatment device for oil extraction comprises a sewage treatment box 1, a water inlet pipe 2 is arranged on the top of the sewage treatment box 1, side grooves 7 are opened on both sides of the sewage treatment box 1, the inner side walls of the side grooves 7 on both sides are rotatably connected with reciprocating threaded rods 6, a transmission belt 5 is sleeved between the reciprocating threaded rods 6 on both sides, a mounting frame 4 is fixedly connected to the outer side wall of the sewage treatment box 1, a starting motor 3 is fixedly connected to the outer side wall of the mounting frame 4, the output end of the starting motor 3 is connected to one of the ends of the reciprocating threaded rods 6 on both sides, and a primary filtering mechanism is arranged inside the side grooves 7;

[0038] The primary filtering mechanism includes a driving member 12 slidably arranged inside the side groove 7, the middle part of the driving member 12 is threadedly sleeved on the reciprocating threaded rod 6, an electric flip shaft 15 is arranged on the driving member 12, and a filter main board 10 is fixedly connected to the electric flip shaft 15, a plurality of filter plates 16 are rotatably connected to the filter main board 10, a stirring plate 24 is arranged on the back of the plurality of filter plates 16, a plurality of filter holes 29 are opened on the plurality of filter plates 16, a rotating rod 19 is arranged at the end of the plurality of filter plates 16, the rotating rod 19 is hollow, and a flip gear 21 is arranged at the end of the plurality of rotating rods 19, a rack 20 is slidably connected to the inside of the filter main board 10, and the rack 20 is meshed with the plurality of flip gears 21.

[0039] A fixing piece 22 is fixedly connected to the outer wall of the rack 20 , an electric telescopic rod 23 is fixedly connected to the inside of the filter main board 10 , the end of the electric telescopic rod 23 is fixedly connected to the fixing piece 22 , and a post-flocculation mechanism is provided at the bottom of the filter plate 16 .

[0040] In this embodiment, during use, the oil production wastewater that needs multi-stage treatment can first be discharged into the sewage treatment tank 1 through the water inlet pipe 2. When the wastewater impacts the filter main board 10 through the water inlet pipe 2, the filter main board 10 will filter the larger solid impurities in the wastewater through the multiple filter holes 29 opened on the filter plate 16. For example, in the oil refining process, there are a lot of impurities such as sludge containing crude oil and solid impurities. When a batch of sewage enters the sewage treatment tank 1, the filter main board 10 will filter the solid impurities in this batch of sewage, and filter the larger solid impurities and leave them on its surface. When the filter main board 1 0 surface area has accumulated a lot of solid impurities, at this time the operator can make the entire filter main board 10 flip through the electric flip shaft 15, (this is the prior art, no further elaboration), when the filter main board 10 flips, the solid impurities remaining on the surface of the filter main board 10 will slide along the surface of the filter main board 10 into the feed port 14, and finally enter the dirt storage box 13 through the feed port 14, and the dirt storage box 13 will uniformly collect and process these solid impurities, when the solid impurities on the filter main board 10 are cleaned, at this time the operator can flip the filter main board 10 again through the electric flip shaft 15, so that the filter main board 10 returns to its original state.

[0041] Example 2: Please refer to Figure 1 - Fig.15 In the figure, the post-flocculation mechanism includes a recoil piece 26 arranged on the back of the filter plate 16, and an infusion tube 27 is fixedly connected to the inside of the filter plate 16, and the infusion tube 27 is connected to the inside of the rotating rod 19. The inside of the recoil piece 26 is connected to a side tube 47, and one end of the side tube 47 away from the recoil piece 26 is connected to the inside of the filter plate 16. A recoil hole 28 is opened in the side tube 47, and the recoil hole 28 penetrates into the inside of the filter hole 29.

[0042] The interior of the liquid infusion tube 27 is connected with a branch tube 30 , one end of the branch tube 30 away from the liquid infusion tube 27 is connected to the interior of the recoil member 26 , and the end of the branch tube 30 is rotatably connected with a water wheel 31 .

[0043] A disc 32 is disposed at the end of the water wheel 31 . A liquid inlet hole 33 is formed inside the disc 32 . The liquid inlet hole 33 passes through the water wheel 31 and is connected to the inside of the branch pipe 30 .

[0044] A circular tube 34 is fixedly connected to the disc 32, a through hole 35 is opened inside the circular tube 34, the through hole 35 is connected to the inside of the disc 32, a baffle 36 is slidably connected inside the circular tube 34, a tension spring 37 is fixedly connected to the outer wall of the lower end of the baffle 36, the end of the tension spring 37 away from the baffle 36 is fixedly connected to the inner wall of the circular tube 34, and a side hole 38 is opened inside the circular tube 34.

[0045] A plurality of covering rings 40 are fixedly connected to the inside of the side wall of the filter main board 10, and the plurality of covering rings 40 are rotatably connected to the corresponding rotating rods 19 respectively. A liquid inlet pipe 39 is provided inside the covering ring 40, and a plurality of through holes 41 corresponding to the liquid inlet pipe 39 are provided on the rotating rod 19. A liquid storage tank 17 is fixedly connected to the side wall of the filter main board 10, and an end of the liquid inlet pipe 39 away from the covering ring 40 is connected to the inside of the liquid storage tank 17.

[0046] A plurality of bottom holes 25 are provided at the bottom of the filter main board 10, and a bottom box 42 is fixedly connected to the bottom of the filter main board 10, and a mass filter plate 43 is slidably connected inside the bottom box 42, and pressing springs 44 are provided on both sides of the mass filter plate 43, and the other end of the pressing spring 44 is connected to the inner wall of the bottom box 42, and a trigger magnet 46 is fixedly connected to the tail of the mass filter plate 43, and an electromagnet 45 is provided inside the bottom box 42.

[0047] A drain outlet 8 is provided at the bottom of the sewage treatment tank 1, an electromagnetic switch valve is provided inside the drain outlet 8, the interior of the drain outlet 8 is connected to an external drain pipe 9, a sewage storage box 13 is fixedly connected to the outer wall of the sewage treatment tank 1, the interior of the sewage storage box 13 is connected to a feed port 14, and the feed port 14 runs through the interior of the sewage treatment tank 1.

[0048] A liquid filling port 18 is disposed at the back of the liquid storage tank 17 , and a plugging port 11 corresponding to the liquid filling port 18 is disposed at the back of the sewage treatment tank 1 .

[0049] In this embodiment, when the solid impurities in the sewage treatment tank 1 are separated, the operator can extend the electric telescopic rod 23. When the electric telescopic rod 23 is extended, the rack 20 is pushed to move to the left side of the filter main board 10 through the fixing member 22 (refer to Figure 7), when the rack 20 moves to the left side of the filter main board 10, it will push the multiple flip gears 21 to rotate synchronously, and accordingly, driven by the multiple rotating flip gears 21 and the rotating rod 19, the multiple filter plates 16 will flip (refer to Figure 7 ), when the multiple filter plates 16 are vertical, the operator can start the starting motor 3 to drive the two reciprocating threaded rods 6 to rotate synchronously through the transmission belt 5. When the two reciprocating threaded rods 6 rotate synchronously, the filter main board 10 will move up and down in the sewage treatment tank 1. When the filter main board 10 drives the multiple filter plates 16 to move up and down in the sewage treatment tank 1, the sewage with filtered solid impurities will impact the recoil piece 26 during the downward movement of the filter main board 10. When the sewage impacts the recoil piece 26, a part of the sewage will be transported through the side pipe 47 and the recoil hole 28 to recoil the filter hole 29, and the impurities stuck in the filter hole 29 will be flushed away, thereby ensuring the filtering effect of the entire filter plate 16.

[0050] After a part of the sewage entering the recoil member 26 recoils the filter hole 29, a part of it will also impact the water wheel 31 to make it rotate. When the water wheel 31 rotates, it will drive the disc 32 at its end to rotate synchronously. When the disc 32 rotates, the flocculant that enters the inside of the disc 32 through the liquid inlet hole 33 through the infusion tube 27 will be thrown into the circular tube 34 through the through hole 35. When the circular tube 34 rotates with the disc 32, the baffle 36 inside it will overcome the pulling force of the through hole 35 under the action of centrifugal force and be thrown to the upper end of the circular tube 34. When the baffle 36 is located at the upper end of the circular tube 34 (refer to Fig.12 ), the side hole 38 will no longer be blocked. At this time, the flocculant entering the round tube 34 through the through hole 35 will be thrown into the recoil piece 26 through the side hole 38, mixed with the sewage transported inside the recoil piece 26, and then mixed with the sewage in the sewage treatment tank 1 after passing through the side pipe 47 to transport the recoil filter hole 29. When the filter plate 16 moves up and down with the filter main board 10, the stirring plate 24 will also stir the sewage in the sewage treatment tank 1, so that the flocculant and the sewage are mixed more fully. When the flocculant is thrown After a certain number, the operator can move the filter main board 10 to the bottom end of the sewage treatment tank 1, and then start the electromagnet 45 in the bottom box 42. When the electromagnet 45 is energized and has magnetic force, under the action of the repulsive magnetic force with the trigger magnet 46, the agglomerate filter plate 43 will overcome the elastic force of the pressing spring 44 and move out of the bottom box 42 to block the drain outlet 8. When the agglomerate filter plate 43 blocks the drain outlet 8, the operator can wait for the flocculant to flocculate the smaller particles in the sewage in the sewage treatment tank 1 into agglomerates, and then sink to the bottom.

[0051] When the flocculated clumps sink to the bottom, the operator can open the solenoid valve in the drain port 8 to allow the sewage in the sewage treatment tank 1 to flow into the external drain pipe 9 through the drain port 8. When the sewage in the sewage treatment tank 1 is discharged through the drain port 8, it will first pass through the filter main board 10 located at the bottom of the sewage treatment tank 1, and then pass through the mass filter plate 43 blocking the drain port 8. The flocculated clumps are filtered by the mass filter plate 43 with smaller filter holes. When the sewage in the sewage treatment tank 1 is completely filtered by the mass filter plate 43, it will enter the next level of sewage treatment through the external drain pipe 9, thereby completing the multi-stage treatment of the sewage. At this time, the operator can rotate the reciprocating threaded rod 6 again to allow the filter main board 10 to return to its original position. When the filter main board 10 drives the mass filter plate 43 back to its original position, the operator can again flip the filter main board 10 through the electric flip shaft 15. When the filter main board 10 flips, it will drive the mass filter plate 43 to flip together, and pour the flocculated masses filtered on the surface of the mass filter plate 43 into the dirt storage box 13, so as to complete the cleaning of the flocculated masses. When the flocculated masses are cleaned, the electromagnet 45 can be powered off. At this time, the mass filter plate 43 that loses the magnetic force will return to its original position under the elastic force of the pressing spring 44. When the mass filter plate 43 returns to its original position, the operator can also retract the electric telescopic rod 23. When the electric telescopic rod 23 retracts, it will drive the rack 20 to move right back to its original position (refer to Figure 7 ), at this time, driven by the flipping gear 21, multiple filter plates 16 will also flip and lay flat on the filter main board 10, which is convenient for next use. Through multi-stage treatment of solid impurities and fine suspended particles, the sewage treatment effect can be improved.

[0052] It should be noted that when there is sewage in the sewage treatment tank 1, the sewage in the sewage treatment tank 1 will not exceed the feed port 14, and when the agglomerates are filtered by the agglomerate filter plate 43, most of the agglomerates will be filtered and remain on the agglomerate filter plate 43 due to the impact of the sewage, and very small parts will remain at the bottom of the sewage treatment tank 1. With the next filtration, the flocculated agglomerates at the bottom of the sewage treatment tank 1 will be impacted by the sewage again and filtered again by the agglomerate filter plate 43.

[0053] It should be noted that when the rotating rod 19 drives the filter plate 16 to flip, it will also drive the through hole 41 to flip synchronously. When the rotating rod 19 drives the filter plate 16 to stand upright, one of the multiple through holes 41 will coincide with the liquid inlet pipe 39. At this time, the liquid storage tank 17 will input the flocculant into the rotating rod 19 through the liquid inlet pipe 39 and the through hole 41, and then the flocculant will be transported to the infusion pipe 27 by the rotating rod 19. When the filter main board 10 is located at the top of the sewage treatment tank 1 and is in its original position, the liquid filling port 18 inside the liquid storage tank 17 coincides with the sealing port 11 on the back of the sewage treatment tank 1. At this time, the sealing port 11 and the liquid filling port 18 can be opened to add flocculant to the liquid storage tank 17, which is convenient for multiple uses.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device for oil production, comprising a sewage treatment tank (1), characterized in that: A water inlet pipe (2) is arranged on the top of the sewage treatment box (1), and side grooves (7) are provided on both sides of the sewage treatment box (1), and the inner side walls of the side grooves (7) on both sides are rotatably connected with reciprocating threaded rods (6), and a transmission belt (5) is sleeved between the reciprocating threaded rods (6) on both sides. A mounting frame (4) is fixedly connected to the outer side wall of the sewage treatment box (1), and a starting motor (3) is fixedly connected to the outer side wall of the mounting frame (4), and the output end of the starting motor (3) is connected to one of the ends of the reciprocating threaded rods (6) on both sides, and a primary filtering mechanism is arranged inside the side grooves (7); The primary filtering mechanism comprises a driving member (12) slidably arranged inside the side groove (7), the middle part of the driving member (12) being threadedly sleeved on the reciprocating threaded rod (6), the driving member (12) being provided with an electric flip shaft (15), the electric flip shaft (15) being fixedly connected with a filter main board (10), a plurality of filter plates (16) being rotatably connected to the filter main board (10), the backs of the plurality of filter plates (16) being provided with a stirring plate (24), a plurality of filter holes (29) being provided on the plurality of filter plates (16), the ends of the plurality of filter plates (16) being provided with a rotating rod (19), the rotating rod (19) being hollow, the ends of the plurality of rotating rods (19) being provided with a flip gear (21), the interior of the filter main board (10) being slidably connected with a rack (20), the rack (20) being meshed with the plurality of flip gears (21).

2. A sewage treatment device for oil production according to claim 1, characterized in that: A fixing piece (22) is fixedly connected to the outer wall of the rack (20), an electric telescopic rod (23) is fixedly connected to the interior of the filter main board (10), an end of the electric telescopic rod (23) is fixedly connected to the fixing piece (22), and a post-flocculation mechanism is provided at the bottom of the filter plate (16).

3. A sewage treatment device for oil production according to claim 2, characterized in that: The post-flocculation mechanism comprises a recoil piece (26) arranged on the back of the filter plate (16); a liquid infusion tube (27) is fixedly connected to the interior of the filter plate (16); the liquid infusion tube (27) is connected to the interior of the rotating rod (19); a side tube (47) is arranged in the interior of the recoil piece (26); one end of the side tube (47) away from the recoil piece (26) is connected to the interior of the filter plate (16); a recoil hole (28) is opened in the interior of the side tube (47); and the recoil hole (28) penetrates to the interior of the filter hole (29).

4. A sewage treatment device for oil production according to claim 3, characterized in that: The interior of the liquid infusion pipe (27) is connected to a branch pipe (30), one end of the branch pipe (30) away from the liquid infusion pipe (27) is connected to the interior of the recoil member (26), and the end of the branch pipe (30) is rotatably connected to a water wheel (31).

5. A sewage treatment device for oil production according to claim 4, characterized in that: A disc (32) is provided at the end of the water wheel (31), a liquid inlet hole (33) is provided inside the disc (32), and the liquid inlet hole (33) passes through the water wheel (31) and is connected to the inside of the branch pipe (30).

6. A sewage treatment device for oil production according to claim 5, characterized in that: A circular tube (34) is fixedly connected to the circular disc (32), a through hole (35) is provided inside the circular tube (34), the through hole (35) is connected to the inside of the circular disc (32), a baffle (36) is slidably connected inside the circular tube (34), a tension spring (37) is fixedly connected to the outer wall of the lower end of the baffle (36), one end of the tension spring (37) away from the baffle (36) is fixedly connected to the inner wall of the circular tube (34), and a side hole (38) is provided inside the circular tube (34).

7. A sewage treatment device for oil production according to claim 1, characterized in that: A plurality of wrapping rings (40) are fixedly connected to the inside of the side wall of the filter main board (10), and the plurality of wrapping rings (40) are rotatably connected to the corresponding rotating rods (19). A liquid inlet pipe (39) is provided in the interior of the wrapping ring (40), and a plurality of through holes (41) corresponding to the liquid inlet pipe (39) are provided on the rotating rod (19). A liquid storage tank (17) is fixedly connected to the side wall of the filter main board (10), and one end of the liquid inlet pipe (39) away from the wrapping ring (40) is connected to the inside of the liquid storage tank (17).

8. A sewage treatment device for oil production according to claim 1, characterized in that: A plurality of bottom holes (25) are provided at the bottom of the filter main board (10); a bottom box (42) is fixedly connected to the bottom of the filter main board (10); a mass filter plate (43) is slidably connected inside the bottom box (42); pressing springs (44) are provided on both sides of the mass filter plate (43); the other end of the pressing spring (44) is connected to the inner wall of the bottom box (42); a trigger magnet (46) is fixedly connected to the tail of the mass filter plate (43); and an electromagnet (45) is provided inside the bottom box (42).

9. A sewage treatment device for oil production according to claim 1, characterized in that: The bottom of the sewage treatment tank (1) is provided with a drain port (8), the interior of the drain port (8) is provided with an electromagnetic switch valve, the interior of the drain port (8) is connected to an external drain pipe (9), a sewage storage box (13) is fixedly connected to the outer wall of the sewage treatment tank (1), the interior of the sewage storage box (13) is connected to a feed port (14), and the feed port (14) penetrates into the interior of the sewage treatment tank (1).

10. A sewage treatment device for oil production according to claim 7, characterized in that: The back of the liquid storage tank (17) is provided with a liquid filling port (18), and the back of the sewage treatment tank (1) is provided with a sealing port (11) corresponding to the liquid filling port (18).

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