Multi-stage filtering magnetic recycling device for oil-based drilling fluid

Abstract

An oil-based drilling fluid multi-stage filtering magnetic recycling device comprises a box body and partition plates, the inner wall of the box body is fixedly connected with the two partition plates, an adjusting mechanism is arranged in the box body, a sleeve is fixedly connected to the upper surface of the box body, a sliding rod is slidably connected to the interior of the sleeve, a second spring is arranged in the sleeve, and the second spring is fixedly connected with the upper surface of the box body. The two ends of the second spring are fixedly connected with the sleeve and the sliding rod correspondingly, and the upper end of the sliding rod is fixedly connected with a support. The handle drives the screw rod to rotate, the screw rod drives the threaded cylinder to move, the threaded cylinder drives the cross rod to move downwards, the cross rod drives the two supporting plates to move, the two supporting plates drive the interior of the partition plate to slide downwards, the supporting plates drive the non-woven fabric and the sponge to move downwards, and the non-woven fabric and the sponge are made to be at the height at which the oil-based drilling fluid can be filtered. The height of the non-woven fabric and the height of the sponge can be adjusted, and when a small amount of oil-based drilling fluid needs to be subjected to multi-stage filtration magnetic recycling, the oil-based drilling fluid can be conveniently subjected to multi-stage filtration magnetic recycling.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling fluid filtration, in particular to a multi-stage filtration magnetic recycling device for oil-based drilling fluid. Background Art

[0002] The main function of drilling fluid is to carry the drill cuttings generated when breaking rocks at the bottom of the well to the surface. The particle size range of drill cuttings is approximately 1μm to 10mm.

[0003] For example, the drilling fluid multi-stage filtration and recycling device with patent number CN220551086U includes a box body, a vibrating filtration mechanism and a submersible pump. The top of the box body is open, and at least one partition is provided in the box body from left to right. The partition divides the interior of the box body into sedimentation chambers that are one more than the number of partitions. A water hole is provided on the upper part of the partition, and a sedimentation filter is provided at the water hole. The above document still has shortcomings. When in use, the drill cuttings carried in the drilling fluid are filtered and precipitated by alternating three-stage filtration and three-stage precipitation. The operation is simple and easy, and the filtration effect is good, thereby ensuring that the drilling fluid meets the reuse standard after filtration and precipitation, saving the use of drilling fluid and reducing the impact on the environment Environmental pollution, however, when the recycling device in the above document is used to filter the oil-based drilling fluid, the height of the non-woven fabric and the sponge is fixed, and the oil-based drilling fluid can only be filtered when the oil-based drilling fluid reaches the height position of the non-woven fabric and the sponge. When the oil-based drilling fluid that needs multi-stage filtration and magnetic recycling is small, it will be inconvenient to perform multi-stage filtration and magnetic recycling on the oil-based drilling fluid. At the same time, the filter screen performs preliminary filtration on the oil-based drilling fluid and then discharges it into the interior of the box. The drill cuttings in the oil-based drilling fluid move faster on the filter screen, and the drill cuttings are easily mixed with the oil-based drilling fluid and are directly discharged instead of entering the box for filtration, thereby causing waste of the oil-based drilling fluid. Summary of the invention

[0004] The utility model aims to solve the problem in the prior art that it is inconvenient to perform multi-stage filtering and magnetic recycling of oil-based drilling fluid, and provides a multi-stage filtering and magnetic recycling device for oil-based drilling fluid.

[0005] The utility model adopts a technical solution to solve its technical problems: this oil-based drilling fluid multi-stage filtering magnetic recycling device comprises a box body and a partition, the inner wall of the box body is fixedly connected to two partitions, the interior of the box body is provided with an adjustment mechanism, the upper surface of the box body is fixedly connected to a sleeve, the interior of the sleeve is slidably connected to a slide rod, the interior of the sleeve is provided with a second spring, the two ends of the second spring are respectively fixedly connected to the sleeve and the slide rod, the upper end of the slide rod is fixedly connected to a bracket, the interior of the bracket is provided with a mitigation mechanism, and the interior of the bracket is fixedly connected to a filter screen.

[0006] For further improvement, the adjustment mechanism includes a screw rod, the outer wall of the upper end of the screw rod is rotatably connected to the box body through a bearing, a handle is fixedly connected to the upper end of the screw rod, the outer wall of the screw rod is threadedly connected to a threaded barrel, a cross bar is fixedly connected to the bottom of the threaded barrel, both ends of the cross bar are fixedly connected to support plates, the outer wall of the support plate is slidably connected to the partition, and the upper and lower ends of the support plate are fixedly connected to the partition through a first spring.

[0007] To be further improved, the deceleration mechanism includes a servo motor, the servo motor is fixedly connected to the outer wall of the bracket, the output shaft of the servo motor is fixedly connected to a worm, the outer walls at both ends of the worm are rotatably connected to the bracket through bearings, the worm is rotatably connected to two worm wheels, the worm wheel is fixedly connected to one end of a rotating rod, the outer walls at both ends of the rotating rod are rotatably connected to the bracket through bearings, the outer wall of the rotating rod is fixedly connected to a round roller, and the outer wall of the round roller is fixedly connected to a material removal plate.

[0008] For further improvement, a vibration motor is fixedly connected below the bracket, and the box body is fixedly connected to the outer wall of the feeding hopper.

[0009] For further improvement, a magnet bar is provided in the internal gap of the box body, and the outer wall of the end of the magnet bar is engaged with a groove provided in the left partition.

[0010] For further improvement, the interior of the left support plate is fixedly connected with non-woven fabric, and the interior of the right support plate is fixedly connected with sponge.

[0011] The beneficial effects of the utility model are as follows: in the utility model, through the cooperation between the screw, the handle, the threaded barrel, the cross plate, the support plate and the first spring, the handle drives the screw to rotate, the screw drives the threaded barrel to move, the threaded barrel drives the cross bar to move downward, the cross bar drives the two support plates to move, the two support plates drive the inside of the partition to slide downward, the support plate drives the non-woven fabric and the sponge to move downward, so that the non-woven fabric and the sponge are at a height that can filter the oil-based drilling fluid, the height of the non-woven fabric and the sponge can be adjusted, and when the oil-based drilling fluid that needs multi-stage filtration and magnetic recycling is small, it will be convenient to perform multi-stage filtration and magnetic recycling of the oil-based drilling fluid.

[0012] Through the cooperation among the servo motor, worm, worm wheel, rotating rod, round roller and material shifting plate, the servo motor drives the worm to rotate, the worm drives the two worm wheels to rotate, the worm wheel drives the rotating rod to rotate, the rotating rod drives the round roller to rotate, and the round roller drives the material shifting plate to rotate. When the material shifting plate rotates, the drill cuttings in the oil-based drilling fluid are intermittently shifted to the right, slowing down the speed of the drill cuttings moving to the left, so that more oil-based drilling fluid can pass through the filter screen, and the drill cuttings are not easily mixed with the oil-based drilling fluid and are directly discharged and can enter the box for filtration, thereby not causing waste of the oil-based drilling fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the mechanism of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the connection between the servo motor, the worm and the worm wheel in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the connection between the circular roller and the material-shifting plate in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the connection between the screw rod, the handle and the threaded barrel in the utility model;

[0018] Figure 6 It is a structural schematic diagram of the connection between the box body, the feeding hopper and the sleeve in the utility model.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. box body, 2. partition, 3. adjusting mechanism, 301. screw, 302. handle, 303. threaded cylinder, 304. cross bar, 305. support plate, 306. first spring, 4. deceleration mechanism, 401. servo motor, 402. worm, 403. worm gear, 404. rotating rod, 405. round roller, 406. material removal plate, 5. sleeve, 6. sliding rod, 7. second spring, 8. bracket, 9. filter screen, 10. vibration motor, 11. feeding hopper, 12. magnet bar, 13. non-woven fabric, 14. sponge. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings: Embodiment 1:

[0021] See attached Figure 1-6 : In the present embodiment, a multi-stage filtering magnetic recycling device for oil-based drilling fluid comprises a box body 1 and a partition plate 2. Two partition plates 2 are fixedly connected to the inner wall of the box body 1. An observation window is arranged on the surface of the box body 1 to observe the liquid level of the oil-based drilling fluid. A water pump is arranged inside the box body 1 to extract the filtered oil-based drilling fluid for recycling. An adjusting mechanism 3 is arranged inside the box body 1 to adjust the height of the non-woven fabric 13 and the sponge 14. A sleeve 5 is fixedly connected to the upper surface of the box body 1. A sliding rod 6 is slidably connected inside the sleeve 5. The sliding rod 6 slides inside the sleeve 5. A second spring 7 is arranged inside the sleeve 5. The two ends of the second spring 7 are fixedly connected to the sleeve 5 and the sliding rod 6 respectively. The second spring 7 can drive the sliding rod 6 to slide under the elastic action.

[0022] The upper end of the slide bar 6 is fixedly connected with a bracket 8, and the bracket 8 drives the slide bar 6 to move. The slide bar 6, the second spring 7 and the sleeve 5 support and guide the movement of the bracket 8. The interior of the bracket 8 is provided with a deceleration mechanism 4, which decelerates the falling speed of the drill cuttings on the bracket 8. The interior of the bracket 8 is fixedly connected with a filter screen 9, and the filter screen 9 filters the larger drill cuttings. The lower part of the bracket 8 is fixedly connected with a vibration motor 10, and the vibration motor 10 drives the bracket 8 to vibrate. The box body 1 is fixedly connected to the outer wall of the feeding hopper 11, and the feeding hopper 11 is fixedly connected. It is arranged below the filter screen 9, and the internal gap of the box body 1 is equipped with a magnet rod 12. The magnet rod 12 adsorbs metal impurities in the oil-based drilling fluid to achieve magnetic recycling. The outer wall of the end of the magnet rod 12 is snapped into the groove set in the left partition 2. The inside of the left support plate 305 is fixedly connected with a non-woven fabric 13, and the inside of the right support plate 305 is fixedly connected with a sponge 14. The functions of the non-woven fabric 13 and the sponge 14 are the same as those in the drilling fluid multi-stage filtration recycling device with patent number CN220551086U.

[0023] The adjusting mechanism 3 comprises a screw rod 301, a handle 302, a threaded barrel 303, a cross plate 304, a support plate 305 and a first spring 306. The outer wall of the upper end of the screw rod 301 is rotatably connected to the box body 1 through a bearing. The upper end of the screw rod 301 is fixedly connected with a handle 302, and the handle 302 drives the screw rod 301 to rotate. The outer wall of the screw rod 301 is threadedly connected with a threaded barrel 303, and the screw rod 301 drives the threaded barrel 303 to move. The lower part of the threaded barrel 303 is fixedly connected with a cross bar 304, and the threaded barrel 303 drives the cross bar 304 to move. The two ends of the cross bar 304 are fixedly connected with support plates 305, and the cross bar 304 drives the two support plates 305 to move.

[0024] The outer wall of the support plate 305 is slidably connected to the partition plate 2, and the support plate 305 slides inside the partition plate 2. The upper and lower ends of the support plate 305 are fixedly connected to the partition plate 2 through the first spring 306. The first spring 306 can drive the support plate 305 to slide under the elastic action, and then the first spring 306 makes the threaded barrel 303 have the force to move up and down under the elastic action, so that the thread at the meshing point between the screw rod 301 and the threaded barrel 303 is more firm, so that the threaded barrel 303 can move only when the screw rod 301 rotates;

[0025] The handle 302 drives the screw 301 to rotate, the screw 301 drives the threaded cylinder 303 to move, the threaded cylinder 303 drives the cross bar 304 to move downward, the cross bar 304 drives the two support plates 305 to move, the two support plates 305 drive the inside of the partition 2 to slide downward, the support plate 305 drives the non-woven fabric 13 and the sponge 14 to move downward, so that the non-woven fabric 13 and the sponge 14 are at a height that can filter the oil-based drilling fluid. The height of the non-woven fabric 13 and the sponge 14 can be adjusted. When the oil-based drilling fluid that needs multi-stage filtration and magnetic recycling is small, it will be convenient to perform multi-stage filtration and magnetic recycling of the oil-based drilling fluid.

[0026] The deceleration mechanism 4 includes a servo motor 401, a worm 402, a worm wheel 403, a rotating rod 404, a round roller 405 and a material-diverting plate 406. The servo motor 401 is fixedly connected to the outer wall of the bracket 8. The output shaft of the servo motor 401 is fixedly connected to the worm 402. The servo motor 401 drives the worm 402 to rotate. The outer walls at both ends of the worm 402 are rotatably connected to the bracket 8 through bearings. The worm 402 is rotatably connected to the two worm wheels 403. The worm 402 drives the two worm wheels 403 to rotate.

[0027] The worm gear 403 is fixedly connected to one end of the rotating rod 404, and the worm gear 403 drives the rotating rod 404 to rotate. The outer walls of both ends of the rotating rod 404 are rotatably connected to the bracket 8 through bearings. A round roller 405 is fixedly connected to the outer wall of the rotating rod 404. The rotating rod 404 drives the round roller 405 to rotate. A material-pickup plate 406 is fixedly connected to the outer wall of the round roller 405. The round roller 405 drives the material-pickup plate 406 to rotate. When the material-pickup plate 406 rotates, it intermittently pokes the drill cuttings in the oil-based drilling fluid to the right.

[0028] The servo motor 401 drives the worm 402 to rotate, the worm 402 drives the two worm wheels 403 to rotate, the worm wheel 403 drives the rotating rod 404 to rotate, the rotating rod 404 drives the round roller 405 to rotate, the round roller 405 drives the material shifting plate 406 to rotate, and the material shifting plate 406 intermittently shifts the drill cuttings in the oil-based drilling fluid to the right when rotating, slowing down the speed of the drill cuttings moving to the left, so that more oil-based drilling fluid can pass through the filter screen 9, and the drill cuttings are not easily mixed with the oil-based drilling fluid and are directly discharged and can enter the box 1 for filtration, thereby not causing waste of the oil-based drilling fluid.

[0029] Working principle:

[0030] When using an oil-based drilling fluid multi-stage filtration magnetic recycling device to filter oil-based drilling fluid;

[0031] Cuttings mitigation phase:

[0032] The oil-based drilling fluid to be filtered is added to the right end of the right bracket 8, and the vibration motor 10 is started. The vibration motor 10 makes the bracket 8 vibrate, and the oil-based drilling fluid and the drill cuttings mixed inside move along the tilt direction of the bracket 8. The oil-based drilling fluid and the drill cuttings smaller than 1 mm pass through the filter screen and the hopper 11 into the interior of the box 1. The drill cuttings larger than 1 mm slide to the left along the bracket 8 with a left low and a right high tilt setting, and are received by a material box at the left end of the bracket 8. The servo motor 401 is started, and the servo motor 401 drives the worm 4 02 rotates, the worm 402 drives the two worm wheels 403 to rotate, the worm wheel 403 drives the rotating rod 404 to rotate, the rotating rod 404 drives the round roller 405 to rotate, the round roller 405 drives the material-pickup plate 406 to rotate, and the material-pickup plate 406 intermittently pokes the drill cuttings in the oil-based drilling fluid to the right when rotating, slowing down the speed of the drill cuttings moving to the left, so that more oil-based drilling fluid can pass through the filter screen 9, and the drill cuttings are not easily mixed with the oil-based drilling fluid and are directly discharged and can enter the box 1 for filtering, thereby not causing waste of the oil-based drilling fluid;

[0033] Oil-based drilling fluid filtration stage:

[0034] The oil-based drilling fluid enters the interior of the box 1, and the magnet bar 12 adsorbs the metal impurities in the oil-based drilling fluid to achieve magnetic recycling. The height of the non-woven fabric 13 and the sponge 14 is adjusted according to the volume of the oil-based drilling fluid. The handle 302 is turned, and the handle 302 drives the screw 301 to rotate. The screw 301 drives the threaded cylinder 303 to move, and the threaded cylinder 303 drives the cross bar 304 to move downward. The cross bar 304 drives the two support plates 305 to move, and the two support plates 305 drive the interior of the partition 2 to slide downward, and the support plate 305 drives the non-woven fabric 13 and the sponge 14 to move downward. , so that the non-woven fabric 13 and the sponge 14 are at a height capable of filtering the oil-based drilling fluid. The height of the non-woven fabric 13 and the sponge 14 can be adjusted. When the oil-based drilling fluid that needs multi-stage filtration and magnetic recycling is small, it will be convenient to perform multi-stage filtration and magnetic recycling on the oil-based drilling fluid. The oil-based drilling fluid passes through the non-woven fabric 13 and the sponge 14 in turn to achieve multi-stage filtration of the oil-based drilling fluid. The control valve of the discharge pipe below the box body 1 is opened, and the filtered impurities are discharged from the discharge pipe below the box body 1. A water pump is provided inside the box body 1 to extract the filtered oil-based drilling fluid for recycling. Embodiment 2:

[0035] See attached Figure 1-6: In this embodiment, an oil-based drilling fluid multi-stage filtering magnetic recycling device, the adjustment mechanism 3 also includes a guide block 3a1 and a guide rod 3a2 movement, the guide block 3a1 is fixedly connected to the outer wall of the threaded barrel 303, the threaded barrel 303 drives the guide block 3a1 to move, the guide block 3a1 is slidably connected to the outer wall of the guide rod 3a2, the guide block 3a1 slides on the outer wall of the guide rod 3a2, the guide block 3a1 and the guide rod 3a2 guide the movement of the threaded barrel 303, and the upper end of the guide rod 3a2 is fixedly connected to the box 1;

[0036] Through the cooperation between the guide block 3a1 and the guide rod 3a2, the threaded barrel 303 drives the guide block 3a1 to move when moving, and the guide block 3a1 slides on the outer wall of the guide rod 3a2. The guide block 3a1 and the guide rod 3a2 guide the movement of the threaded barrel 303.

[0037] Working principle:

[0038] When the threaded barrel 303 moves, it drives the guide block 3a1 to move. The guide block 3a1 slides on the outer wall of the guide rod 3a2. The guide block 3a1 and the guide rod 3a2 guide the movement of the threaded barrel 303.

[0039] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A multi-stage filtering magnetic recycling device for oil-based drilling fluid, comprising a housing (1) and a partition (2), wherein the inner wall of the housing (1) is fixedly connected with two partitions (2), and wherein: An adjusting mechanism (3) is arranged inside the box body (1); a sleeve (5) is fixedly connected to the upper surface of the box body (1); a sliding rod (6) is slidably connected inside the sleeve (5); a second spring (7) is arranged inside the sleeve (5); two ends of the second spring (7) are respectively fixedly connected to the sleeve (5) and the sliding rod (6); a bracket (8) is fixedly connected to the upper end of the sliding rod (6); a mitigation mechanism (4) is arranged inside the bracket (8); and a filter screen (9) is fixedly connected inside the bracket (8).

2. The oil-based drilling fluid multi-stage filtration magnetic recycling device according to claim 1 is characterized in that: The adjusting mechanism (3) comprises a screw rod (301), the outer wall of the upper end of the screw rod (301) is rotatably connected to the box body (1) via a bearing, the upper end of the screw rod (301) is fixedly connected to a handle (302), the outer wall of the screw rod (301) is threadedly connected to a threaded barrel (303), a cross bar (304) is fixedly connected below the threaded barrel (303), both ends of the cross bar (304) are fixedly connected to support plates (305), the outer wall of the support plate (305) is slidably connected to the partition plate (2), and the upper and lower ends of the support plate (305) are fixedly connected to the partition plate (2) via a first spring (306).

3. The oil-based drilling fluid multi-stage filtration magnetic recycling device according to claim 1 is characterized in that: The deceleration mechanism (4) comprises a servo motor (401), the servo motor (401) is fixedly connected to the outer wall of the bracket (8), the output shaft of the servo motor (401) is fixedly connected to a worm (402), the outer walls at both ends of the worm (402) are rotatably connected to the bracket (8) via bearings, the worm (402) is rotatably connected to two worm wheels (403), the worm wheel (403) is fixedly connected to one end of a rotating rod (404), the outer walls at both ends of the rotating rod (404) are rotatably connected to the bracket (8) via bearings, the outer wall of the rotating rod (404) is fixedly connected to a round roller (405), and the outer wall of the round roller (405) is fixedly connected to a material shifting plate (406).

4. The oil-based drilling fluid multi-stage filtration magnetic recycling device according to claim 1 is characterized in that: A vibration motor (10) is fixedly connected below the bracket (8), and the box body (1) is fixedly connected to the outer wall of the feeding hopper (11).

5. The oil-based drilling fluid multi-stage filtration magnetic recycling device according to claim 1 is characterized in that: The internal gap of the box body (1) is matched with a magnet rod (12), and the outer wall of the end of the magnet rod (12) is clamped with a groove arranged in the left partition (2).

6. The oil-based drilling fluid multi-stage filtration magnetic recycling device according to claim 2 is characterized in that: The interior of the left support plate (305) is fixedly connected with a non-woven fabric (13), and the interior of the right support plate (305) is fixedly connected with a sponge (14).

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