Proppant slurry dehydration device

Abstract

The utility model relates to a proppant slurry dehydration device which comprises a shell, a rotary drum, a screw rod and a threaded drum, the rotary drum is rotatably arranged in the shell, a limiting piece is arranged on the shell, a first annular groove is formed in the outer wall of the rotary drum, sliding grooves are arrayed in the inner wall of the rotary drum, filtering holes communicated with the first annular groove are evenly distributed in the inner wall of the rotary drum, and a water pipe communicated with the first annular groove is arranged at the lower end of the shell; the screw rod is arranged in the rotating cylinder, the upper end of the screw rod is driven by the motor to rotate, the screw rod is in external threaded connection with a threaded cylinder, the lower portion of the screw rod is in threaded connection with a nut, the lower portion of the threaded cylinder is fixedly sleeved with an annular plate, the outer diameter of the annular plate corresponds to the inner diameter of the rotating cylinder, and a first sliding block stretching into the sliding groove is arranged on the outer annular face of the annular plate. The slurry dewatering device solves the problems that the slurry dewatering effect of a filtering device is poor, and in the prior art, the production efficiency is affected when slurry is fed and discharged by detaching a charging barrel.

Description

Technical Field

[0001] The utility model relates to the technical field of proppant production, in particular to a proppant mud dehydration device. Background Art

[0002] Proppant mud dehydration refers to the dehydration of mud carrying solid particles such as rock cuttings and sand during drilling and excavation in the fields of oil extraction, mining, construction engineering, etc., in order to recover useful solid particles (proppants) and purify the mud. Dehydration can not only improve the recovery rate of solid particles, reduce the cost of mud treatment, but also reduce environmental pollution.

[0003] Generally, a filtering device is used to dehydrate the mud, but the dehydration effect is not good. The authorization publication number CN 220237925U "A proppant mud dehydration device" provides a device that can dehydrate the mud through centrifugal action, but the device requires manual disassembly of the loading barrel to achieve the feeding and discharging of the proppant mud, which is time-consuming and labor-intensive, affecting production efficiency. Summary of the invention

[0004] The utility model provides a proppant mud dehydration device to solve the problems that the filtering device has poor mud dehydration effect and the feeding and discharging of the mud in the prior art affect the production efficiency, and can improve the efficiency and quality of proppant mud dehydration.

[0005] In order to solve the above problems, the technical solution of the utility model is:

[0006] The cam is provided with a toothed plate, the toothed plate is provided with a toothed plate, and the toothed plate ...

[0007] Furthermore, the limiting member includes a limiting ring and an annular groove 2, the limiting ring is fixed at the lower end of the inner wall of the shell, an annular groove 2 is provided on the bottom surface of the rotating drum, and a bolt with an end located in the annular groove 2 is threadedly connected to the limiting ring.

[0008] Furthermore, the inner diameter of the limiting ring is smaller than the inner diameter of the rotating drum, and the upper and lower surfaces of the rotating drum respectively slide in contact with the shell top plate and the limiting ring; the end of the bolt is provided with an anti-slip pattern 1, and the inner top surface of the annular groove 2 is provided with an anti-slip pattern 2.

[0009] Furthermore, a cleaning ring is provided in the upper part of the rotating drum, and the cleaning ring is a circular ring body whose thickness gradually becomes thinner from the outer ring to the inner ring. The outer ring surface of the cleaning ring slides in contact with the inner wall of the rotating drum, and the inner ring of the cleaning ring is connected to the threaded cylinder via multiple connecting rods. The outer ring surface of the cleaning ring is provided with multiple sliding blocks 2 that extend into the upper end of the slide groove; the feed hopper and the left part of the cleaning ring are opposite to each other up and down.

[0010] Furthermore, a motor is fixed to the outer top surface of the shell, and the upper end of the screw rod passes through the top plate of the shell to connect to the output end of the motor.

[0011] Furthermore, the top surface of the nut is provided with anti-slip groove three, and the lower end of the threaded barrel is provided with anti-slip groove four.

[0012] Furthermore, the support frame includes a connecting ring and supporting legs. The connecting ring is sleeved and fixed on the lower end of the outer wall of the shell, and the bottom surface of the connecting ring is arrayed with supporting legs.

[0013] Through the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model controls the screw rod and the threaded barrel to be in a locked state, and the limiting member releases the rotation of the drum. When the motor drives the screw rod to rotate, the proppant mud in the drum can be driven to be centrifugally dehydrated, and the dehydration effect is good.

[0015] The utility model controls the screw and the threaded barrel to be in a loose state, and the limiting member limits the rotation of the rotating barrel. When the motor drives the screw to rotate, the threaded barrel can be driven to drive the annular plate to move downward, and the lower end opening of the rotating barrel is opened, thereby realizing convenient unloading of dehydrated mud.

[0016] When the threaded barrel of the utility model moves downward, the cleaning ring moves downward accordingly, and can clean the dehydrated mud adhering to the inner wall of the rotating barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a sectional front view of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the rotary drum of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the connection of the threaded cylinder, the circular ring plate and the cleaning ring of the utility model;

[0020] Figure 4It is a structural schematic diagram (enlarged view) of a nut connected to a screw rod of the utility model;

[0021] Figure 5 It is a structural schematic diagram (enlarged view) of the bolt of the utility model.

[0022] The numbers in the attached figure are: 1, shell, 2, feed hopper, 3, rotating drum, 4, screw, 5, threaded barrel, 6, annular groove one, 7, slide groove, 8, filter hole, 9, water pipe, 10, motor, 11, nut, 12, circular ring plate, 13, slider one, 14, limiting ring, 15, annular groove two, 16, bolt, 17, anti-slip texture one, 18, anti-slip texture two, 19, cleaning ring, 20, connecting rod, 21, slider two, 22, anti-slip texture three, 23, anti-slip texture four, 24, connecting ring, 25, support leg. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0024] like Figure 1 to Figure 5 As shown, a proppant mud dewatering device comprises a shell 1, which is a cylinder. The lower end of the shell 1 is open and a feed hopper 2 is connected to the top plate. The shell 1 is supported by a support frame and also comprises a rotating drum 3, a screw 4 and a threaded drum 5; the rotating drum 3 is a cylinder with openings at both ends and an outer diameter corresponding to the inner diameter of the shell 1. The rotating drum 3 is rotatably arranged in the shell 1, and a limiting member is provided on the shell 1. The limiting member limits or releases the limit on the rotation of the rotating drum 3. An annular groove 6 is provided on the outer wall of the rotating drum 3, and the opening of the annular groove 6 faces the peripheral wall of the shell 1. A slide groove 7 is arrayed on the inner wall of the rotating drum 3 and the lower end passes through the bottom surface of the rotating drum 3. The slide groove 7 is a U-shaped groove arranged along the height direction of the rotating drum 3. The opening of the groove faces the central axis of the drum 3, and the inner wall of the drum 3 is evenly distributed with filter holes 8 connected to the annular groove 6. The lower end of the shell 1 is provided with a water pipe 9 connected to the annular groove 6; the screw 4 is coaxially arranged in the drum 3, and the upper end is driven to rotate by the motor 10, and the lower end of the screw 4 extends out of the drum 3. The screw 4 is externally threaded with a threaded barrel 5, and the lower part of the screw 4 is threaded with a nut 11, and the nut 11 locks or loosens the screw 4 and the threaded barrel 5. A circular plate 12 is fixedly arranged on the lower outer sleeve of the threaded barrel 5. The outer diameter of the circular plate 12 matches the inner diameter of the drum 3, and a slider 13 extending into the slide groove 7 is provided on the outer ring surface. The slider 13 is a rectangular block that slides up and down in contact with the slide groove 7.

[0025] The limiting member includes a limiting ring 14 and an annular groove 15. The limiting ring 14 is fixed to the lower end of the inner wall of the shell 1, and an annular groove 15 is provided on the bottom surface of the rotating drum 3. The opening of the annular groove 15 faces the limiting ring 14. The limiting ring 14 is threadedly connected with a bolt 16 with the end located in the annular groove 15.

[0026] The inner diameter of the limiting ring 14 is smaller than that of the drum 3 , and the upper and lower surfaces of the drum 3 respectively slide in contact with the top plate of the shell 1 and the limiting ring 14 ; the end of the bolt 16 is provided with an anti-slip pattern 17 , and the inner top surface of the annular groove 15 is provided with an anti-slip pattern 18 .

[0027] A cleaning ring 19 is provided in the upper part of the rotating drum 3. The cleaning ring 19 is a circular ring body with a thickness gradually becoming thinner from the outer ring to the inner ring. The outer ring surface of the cleaning ring 19 slides in contact with the inner wall of the rotating drum 3. The inner ring of the cleaning ring 19 is connected to the threaded cylinder 5 via a plurality of connecting rods 20. A plurality of sliders 21 extending into the upper end of the chute 7 are provided on the outer ring surface of the cleaning ring 19. The sliders 21 are rectangular blocks that slide up and down in contact with the chute 7. The feed hopper 2 and the left part of the cleaning ring 19 are opposite to each other up and down.

[0028] The outer top surface of the shell 1 is fixed with a motor 10 , and the upper end of the screw rod 4 passes through the top plate of the shell 1 to connect to the output end of the motor 10 . When the slider 21 contacts the upper end of the slide groove 7 , the upper end of the threaded tube 5 is close to the top plate of the shell 1 .

[0029] The top surface of the nut 11 is provided with a third anti-skid pattern 22 , and the lower end of the threaded barrel 5 is provided with a fourth anti-skid pattern 23 .

[0030] The support frame includes a connecting ring 24 and supporting legs 25. The connecting ring 24 is sleeved and fixed on the lower end of the outer wall of the shell 1, and the supporting legs 25 are arranged on the bottom surface of the connecting ring 24.

[0031] When in use, in the initial state, the annular plate 12 is located in the lower part of the drum 3, the slider 2 is located in the upper end of the slide groove, each bolt 16 is loosened so that the end of the bolt 16 does not contact the anti-skid pattern 2 18 on the annular groove 2 15, the nut 11 is tightened so that the anti-skid pattern 3 22 on the nut 11 is pressed against the anti-skid pattern 4 23 on the threaded barrel 5, and the proppant mud to be dehydrated is fed into the drum 3 through the feed hopper 2, and the motor 10 drives the screw 4 to rotate. At this time, the screw 4 and the threaded barrel 5 are in a locked state, and the rotation of the drum 3 by the limiter is released. When the screw 4 rotates, the threaded barrel 5 rotates with the screw 4, and the annular plate 12 and the cleaning ring 19 rotate with the threaded barrel 5. Since the slider 13 on the annular plate 12 extends into the chute 7, and the slider 21 on the cleaning ring 19 extends into the chute 7, when the annular plate 12 and the cleaning ring 19 rotate with the threaded barrel 5, the rotating drum 3 can be driven to rotate with the screw 4, thereby driving the mud in the rotating drum 3 to rotate. Under the action of centrifugal force, the water that needs to be removed from the proppant mud enters the annular groove 6 through the multiple filter holes 8 on the rotating drum 3 and is discharged through the water pipe 9;

[0032] After the mud dehydration is completed, the motor 10 stops working, tightens each bolt 16, makes the anti-skid pattern 17 on the bolt 16 press against the anti-skid pattern 2 18 on the annular groove 2 15, unscrews the nut 11, the screw 4 and the threaded barrel 5 are in a loose state, and the limiter is in a limited state for the rotation of the rotating drum 3; the motor 10 drives the screw 4 to rotate, because the slider 13 on the annular plate 12 extends into the sliding groove 7, and the slider 2 21 on the cleaning ring 19 extends into the sliding groove 7, under the limit of the slider 13 and the slider 2 21, and the rotating drum 3 does not rotate, the screw 4 When rotating, it will only drive the threaded barrel 5 to drive the annular plate 12 and the cleaning ring 19 to move downward, thereby opening the lower end opening of the rotating drum 3 to facilitate the discharge of the dehydrated mud, until the slider 21 is located in the lower part of the chute 7. When the cleaning ring 19 moves downward, it can scrape and clean the mud adhering to the inner wall of the rotating drum 3. When the slider 21 moves downward, it can drive the dehydrated mud in the chute to move downward and leave the chute 7. The motor 10 drives the screw 4 to rotate in the opposite direction, which can drive the threaded barrel 5, the annular plate 12 and the cleaning ring 19 to return to the initial state.

[0033] The preferred implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the above-mentioned embodiments. Without violating the spirit of the present invention, i.e., the disclosure scope, any equivalent or equivalent deformation or replacement of the technical solution of the present invention shall fall within the protection scope of the present invention.

Claims

1. A proppant slurry dewatering device, comprising a shell (1), the lower end of the shell (1) is open, and a feed hopper (2) is connected to the top plate of the shell (1), and the shell (1) is supported by a support frame, characterized in that: It also comprises a rotating drum (3), a screw (4) and a threaded drum (5); the rotating drum (3) is rotatably arranged in the shell (1); a limiting member is provided on the shell (1); the limiting member limits or releases the limit on the rotation of the rotating drum (3); an annular groove (6) is provided on the outer wall of the rotating drum (3); a sliding groove (7) is arranged on the inner wall of the rotating drum (3) and the lower end of the sliding groove passes through the bottom surface of the rotating drum (3); filter holes (8) connected to the annular groove (6) are evenly distributed on the inner wall of the rotating drum (3); a filter hole (8) connected to the annular groove (6) is provided at the lower end of the shell (1); The water pipe (9); the screw (4) is arranged in the rotating drum (3), and the upper end is driven to rotate by the motor (10); the screw (4) is externally threadedly connected to the threaded drum (5); the lower part of the screw (4) is threadedly connected to the nut (11); the nut (11) locks or loosens the screw (4) and the threaded drum (5); a circular plate (12) is fixedly arranged on the lower outer surface of the threaded drum (5); the outer diameter of the circular plate (12) matches the inner diameter of the rotating drum (3), and a slider (13) is provided on the outer ring surface and extends into the slide groove (7).

2. A proppant slurry dewatering device according to claim 1, characterized in that: The limiting member comprises a limiting ring (14) and a second annular groove (15); the limiting ring (14) is fixed to the lower end of the inner wall of the housing (1); the second annular groove (15) is provided on the bottom surface of the rotating drum (3); and a bolt (16) is threadedly connected to the limiting ring (14) with its end located in the second annular groove (15).

3. A proppant slurry dewatering device according to claim 2, characterized in that: The inner diameter of the limiting ring (14) is smaller than the inner diameter of the rotating drum (3), and the upper and lower surfaces of the rotating drum (3) are in sliding contact with the top plate of the housing (1) and the limiting ring (14) respectively; the end of the bolt (16) is provided with an anti-slip pattern (17), and the inner top surface of the annular groove (15) is provided with an anti-slip pattern (18).

4. A proppant slurry dewatering device according to claim 3, characterized in that: A cleaning ring (19) is provided in the upper part of the rotating drum (3). The cleaning ring (19) is a circular ring whose thickness gradually decreases from the outer ring to the inner ring. The outer ring surface of the cleaning ring (19) slidably contacts the inner wall of the rotating drum (3). The inner ring of the cleaning ring (19) is connected to the threaded cylinder (5) via a plurality of connecting rods (20). A plurality of sliding blocks (21) extending into the upper end of the chute (7) are provided on the outer ring surface of the cleaning ring (19). The feed hopper (2) and the left part of the cleaning ring (19) are opposed to each other in the upper and lower parts.

5. A proppant slurry dewatering device according to claim 1, characterized in that: A motor (10) is fixed to the outer top surface of the housing (1), and the upper end of the screw rod (4) passes through the top plate of the housing (1) to connect to the output end of the motor (10).

6. A proppant slurry dewatering device according to claim 1, characterized in that: The top surface of the nut (11) is provided with a third anti-slip pattern (22), and the lower end of the threaded barrel (5) is provided with a fourth anti-slip pattern (23).

7. A proppant slurry dewatering device according to claim 1, characterized in that: The support frame comprises a connecting ring (24) and supporting legs (25); the connecting ring (24) is sleeved and fixed on the lower end of the outer wall of the shell (1); and the supporting legs (25) are arranged in an array on the bottom surface of the connecting ring (24).

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