Air volume adjusting device for powder concentrator

Abstract

The utility model relates to an air volume adjusting device for a powder concentrator. The air volume adjusting device comprises a shell and an adjusting piece. An opening in the upper end of the shell is blocked by a transparent cover plate, and the two ends of the shell are both communicated with connecting pipes; the adjusting part comprises a fixed cylinder, a rotating cylinder and a screw rod, the fixed cylinder is a cylinder body with a round outside and a square inside, the two ends of the fixed cylinder are fixedly connected with the upper inner face and the lower inner face of the shell respectively, sliding holes are formed in the circumferential wall of the fixed cylinder, the rotating cylinder is arranged outside the fixed cylinder in a circumferential sliding and sleeving mode, and an inclined sliding groove is formed in the inner wall of the rotating cylinder; the front end and the rear end of the peripheral wall of the rotary drum are connected with wind shields, a movable block is arranged in the fixed drum, a driving rod is arranged on the side face of the movable block, the free end of the driving rod penetrates through the sliding hole and extends into the sliding groove, the screw is in threaded connection with the movable block, the lower end of the screw is rotationally connected with the shell bottom plate, and the upper end of the screw penetrates through the cover plate. The powder concentrator solves the problem that stepless adjustment of the air inlet amount of the powder concentrator is difficult to achieve when the proppant powder is selected.

Description

Technical Field

[0001] The utility model relates to the technical field of powder selection, in particular to an air volume regulating device for a powder selection machine. Background Art

[0002] Proppants are generally used in hydraulic fracturing operations in oil and gas production. They increase the productivity of oil and gas by keeping rock cracks open. Powder classifiers play an important role in the production and processing of proppants. Powder classifiers can accurately classify the particle size of proppants to ensure that the product meets specific particle size distribution requirements. Through powder classifiers, unqualified particles can be removed to improve the overall quality of proppants. This includes removing particles that are too fine or too coarse, as well as defective or uneven particles.

[0003] The air volume of the powder classifier directly affects the classification efficiency and product quality of the powder classifier. By adjusting the air volume, the particle size distribution of the proppant can be controlled. The air inlet volume of the powder classifier currently used is difficult to finely control, and the air inlet volume of the powder classifier is difficult to achieve stepless adjustment, resulting in a small controllable range of the powder size of the powder classifier. Summary of the invention

[0004] The utility model solves the problem that the air intake volume of a powder classifier is difficult to achieve stepless regulation when proppant is selected. An air volume regulating device for a powder classifier is provided, which can conveniently adjust the air intake volume of the powder classifier and increase the powder selection force range of the powder classifier.

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

[0006] A wind volume adjustment device for a powder selection machine comprises a shell and an adjusting member; the upper end opening of the shell is blocked by a transparent cover plate, and both ends of the shell are connected with connecting pipes; the adjusting member comprises a fixed cylinder, a rotating cylinder and a screw rod, the fixed cylinder is a cylinder with an outer circle and an inner square, and the two ends of the fixed cylinder are respectively fixedly connected to the upper and lower inner surfaces of the shell, a sliding hole is provided on the circumferential wall of the fixed cylinder, the rotating cylinder is circumferentially slidably sleeved outside the fixed cylinder, an inclined sliding groove is provided on the inner wall of the rotating cylinder, a wind shield is connected to the front and rear ends of the circumferential wall of the rotating cylinder, a movable block is provided in the fixed cylinder, a driving rod is provided on the side of the movable block, the free end of the driving rod passes through the sliding hole and extends into the sliding groove, the screw rod is threadedly connected to the movable block, the lower end of the screw rod is rotatably connected to the bottom plate of the shell, and the upper end of the screw rod passes through the cover plate.

[0007] Furthermore, the upper and lower ends of the rotating drum respectively slide in contact with the upper and lower inner surfaces of the shell, the slide groove is a U-shaped groove, and the upper end passes through the upper end of the peripheral wall of the rotating drum, the driving rod is a round rod body with a diameter corresponding to the width of the sliding hole, and the free end of the driving rod slides in contact with the slide groove.

[0008] Furthermore, the upper and lower ends of each wind shield plate slide in contact with the upper and lower inner surfaces of the shell respectively; there is a gap between the front end of the wind shield plate on the front side of the rotating drum and the front side plate of the shell, and a vertical rod 1 is fixed on the inner surface of the shell on the left side of the front end of the front wind shield plate; there is a gap between the rear end of the wind shield plate on the rear side of the rotating drum and the rear side plate of the shell, and a vertical rod 2 is fixed on the inner surface of the shell on the right side of the rear end of the rear wind shield plate.

[0009] Furthermore, the upper end of the slide groove is inclined clockwise relative to the lower end along the circumferential direction of the rotating drum.

[0010] Furthermore, when the driving rod contacts the lower end of the sliding hole, the free end of the driving rod is located in the lower part of the sliding groove, the front end of the left side wind shield plate on the front side of the rotating drum contacts the vertical pole one, and the distance between the front wind shield plate and the front side plate of the shell is blocked by the vertical pole one, and the rear end of the right side surface of the rear wind shield plate contacts the vertical pole two, and the distance between the rear wind shield plate and the rear side plate of the shell is blocked by the vertical pole two.

[0011] Furthermore, when the driving rod contacts the upper end of the sliding hole, the free end of the driving rod is located in the upper part of the sliding groove, and the driving rod presses the sliding groove to drive the rotating drum to rotate 90 degrees counterclockwise.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model can control the rotation of the rotating drum by rotating the screw rod, so that the wind shield plate connected to the rotating drum rotates, thereby increasing or decreasing the opening of the channel formed between the front end of the front wind shield plate and the front side plate of the shell, and increasing or decreasing the opening of the channel formed between the rear end of the rear wind shield plate and the rear side plate of the shell, thereby controlling the amount of air entering the powder classifier.

[0014] The utility model controls the rotation of the drum through a screw rod, and can infinitely adjust the opening sizes of the two channels, thereby realizing infinitely controlling the air volume entering the powder classifier, thereby avoiding the difficulty in finely controlling the air volume entering the powder classifier, resulting in a small particle size selection range when the proppant is selected.

[0015] The utility model is easy to use, and only needs to rotate the screw rod and observe through the transparent cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a sectional front view of the utility model;

[0018] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0019] Figure 4 It is a sectional front view of the rotary drum of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the fixed cylinder of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the connection between the movable block and the screw rod of the utility model.

[0022] The numbers in the accompanying drawings are: 1, shell, 2, cover plate, 3, connecting pipe, 4, fixed cylinder, 5, rotating cylinder, 6, screw, 7, sliding hole, 8, slide groove, 9, wind shield, 10, movable block, 11, flange, 12, driving rod, 13, vertical pole one, 14, vertical pole two, 15, through hole, 16, rotating plate. 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 6 As shown, an air volume regulating device for a powder selecting machine comprises a shell 1 and an adjusting member; the shell 1 is a hollow cuboid, the upper end opening of the shell 1 is blocked by a transparent cover plate 2, the cover plate 2 is a rectangular plate made of organic glass, both ends of the shell 1 are connected with connecting pipes 3, the connecting pipes 3 are round tubes, and flanges 11 are arranged at the opposite ends of the two connecting pipes 3; the adjusting member comprises a fixed cylinder 4, a rotating cylinder 5 and a screw 6, the fixed cylinder 4 is a cylinder with an outer circle and an inner square, the two ends of the fixed cylinder 4 are open, the two ends of the fixed cylinder 4 are respectively fixedly connected to the upper and lower inner surfaces of the shell 1, a sliding hole 7 is arranged on the peripheral wall of the fixed cylinder 4, the sliding hole 7 is a strip hole arranged along the height direction of the fixed cylinder 4 and penetrating the inner and outer walls of the fixed cylinder 4, the rotating cylinder 5 is open at both ends, and the inner diameter and The fixed cylinder 4 is a cylindrical body with a corresponding outer diameter. The rotating cylinder 5 is circumferentially slidably sleeved on the outside of the fixed cylinder 4. An inclined slide groove 8 is provided on the inner wall of the rotating cylinder 5. The front and rear ends of the circumferential wall of the rotating cylinder 5 are connected with wind shields 9. The wind shield 9 is a rectangular plate body. A movable block 10 is provided in the fixed cylinder 4. The movable block 10 is a rectangular block body whose side slides in contact with the inner wall of the fixed cylinder 4. A driving rod 12 is provided on the side of the movable block 10. The free end of the driving rod 12 passes through the sliding hole 7 and extends into the slide groove 8. The screw 6 is threadedly connected to the movable block 10. The lower end of the screw 6 is rotatably connected to the bottom plate of the shell 1, and the upper end passes through the cover plate 2. The upper end of the screw 6 is connected to a rotating plate 16. The cover plate 2 is provided with a through hole 15 for the screw 6 to pass through, and the screw 6 slides in contact with the through hole 15.

[0025] The upper and lower ends of the rotating drum 5 respectively slide in contact with the upper and lower inner surfaces of the shell 1. The sliding groove 8 is a U-shaped groove, and the upper end passes through the upper end of the peripheral wall of the rotating drum 5. The driving rod 12 is a round rod with a diameter corresponding to the width of the sliding hole 7. The free end of the driving rod 12 slides in contact with the sliding groove 8.

[0026] The upper and lower ends of each wind shield plate 9 slide in contact with the upper and lower inner surfaces of the shell 1 respectively; there is a gap between the front end of the wind shield plate 9 on the front side of the rotating drum 5 and the front side plate of the shell 1, and a vertical rod 13 is fixed on the inner surface of the shell 1 on the left side of the front end of the front wind shield plate 9; there is a gap between the rear end of the wind shield plate 9 on the rear side of the rotating drum 5 and the rear side plate of the shell 1, and a vertical rod 2 14 is fixed on the inner surface of the shell 1 on the right side of the rear end of the rear wind shield plate 9, and both the vertical rod 13 and the vertical rod 2 14 are rectangular rods.

[0027] The upper end of the chute 8 is inclined clockwise relative to the lower end along the circumferential direction of the drum 5 (the circumferential direction of the drum 5 is inclined clockwise by Figure 3 perspective).

[0028] When the driving rod 12 contacts the lower end of the slide hole 7, the free end of the driving rod 12 is located in the lower part of the slide groove 8, the front end of the left side of the windshield plate 9 on the front side of the rotating drum 5 contacts the vertical rod 13, and the distance between the front windshield plate 9 and the front side plate of the shell 1 is blocked by the vertical rod 13, and the rear end of the right side of the rear windshield plate 9 contacts the vertical rod 2 14, and the distance between the rear windshield plate 9 and the rear side plate of the shell 1 is blocked by the vertical rod 2 14;

[0029] When the driving rod 12 contacts the upper end of the slide hole 7, the free end of the driving rod 12 is located in the upper part of the slide groove 8, and the driving rod 12 presses the slide groove 8 to drive the rotating drum 5 to rotate 90 degrees counterclockwise (the rotating drum 5 rotates counterclockwise for Figure 3 perspective).

[0030] When in use, one connecting pipe 3 is connected to the air inlet of the powder classifier via the flange 11, and the other connecting pipe 3 is connected to the air outlet of the fan via the flange 11; in the initial state, the driving rod 12 contacts the lower end of the sliding hole 7, the wind shield plate 9 on the front side of the rotating drum 5 contacts the vertical pole 13, and the wind shield plate 9 on the rear side contacts the vertical pole 2 14, and the shell 1 is blocked; start the fan, and the fan supplies air to the shell 1 through the connected connecting pipe 3, and rotate the screw 6. Since the movable block 10 slides up and down in the fixed cylinder 4, and the movable block 10 is threadedly connected to the screw 6, when the screw 6 rotates, it can only drive the movable block 10 to move upward or downward. The rotating screw 6 drives the movable block 10 to move upward, and the driving rod 12 moves upward with the movable block 10. The free end of the driving rod 12 moves upward to press the slide groove 8, and drives the rotating drum 5 to rotate counterclockwise (the counterclockwise rotation of the rotating drum 5 is Figure 3), the two wind shields 9 rotate counterclockwise with the drum 5, and the front end of the front wind shield 9 is away from the vertical pole 13, and a channel is formed between the front end of the front wind shield 9 and the front side plate of the shell 1, and as the drum 5 rotates, the opening of the channel formed between the front end of the front wind shield 9 and the front side plate of the shell 1 gradually increases. Similarly, as the drum 5 rotates, the opening of the channel formed between the rear end of the rear wind shield 9 and the rear side plate of the shell 1 gradually increases; therefore, the wind entering the shell 1 can enter the powder selection machine through the two channels, and the rotation angle of the drum 5 can be controlled by rotating the screw 6. The angle of the two wind shields 9 rotating with the drum can be observed through the transparent cover 2, so that the opening size of the two channels can be conveniently controlled, and then the air volume entering the powder selection machine can be controlled, and the distance that the movable block 10 moves upward or downward can be controlled by the screw 6, so that the opening size of the two channels can be infinitely adjusted, and then the air volume entering the powder selection machine can be infinitely controlled.

[0031] 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. An air volume regulating device for a powder selecting machine, characterized in that: The invention comprises a shell (1) and an adjusting member; the upper end opening of the shell (1) is blocked by a transparent cover plate (2); both ends of the shell (1) are connected to connecting pipes (3); the adjusting member comprises a fixed cylinder (4), a rotating cylinder (5) and a screw (6); the fixed cylinder (4) is a cylinder with a round outer surface and a square inner surface; the two ends of the fixed cylinder (4) are respectively fixedly connected to the upper and lower inner surfaces of the shell (1); a sliding hole (7) is provided on the peripheral wall of the fixed cylinder (4); the rotating cylinder (5) is circumferentially slidably sleeved on the outside of the fixed cylinder (4); An inclined slide groove (8) is provided on the inner wall of the rotating drum (5); a wind shield plate (9) is connected to the front and rear ends of the peripheral wall of the rotating drum (5); a movable block (10) is provided in the fixed cylinder (4); a driving rod (12) is provided on the side of the movable block (10); a free end of the driving rod (12) passes through the slide hole (7) and extends into the slide groove (8); the screw rod (6) is threadedly connected to the movable block (10); the lower end of the screw rod (6) is rotatably connected to the bottom plate of the housing (1), and the upper end thereof passes through the cover plate (2).

2. The air volume regulating device for a powder concentrator according to claim 1, characterized in that: The upper and lower ends of the rotating drum (5) respectively slide in contact with the upper and lower inner surfaces of the shell (1); the sliding groove (8) is a U-shaped groove, and the upper end thereof passes through the upper end of the peripheral wall of the rotating drum (5); the driving rod (12) is a round rod body having a diameter corresponding to the width of the sliding hole (7); and the free end of the driving rod (12) slides in contact with the sliding groove (8).

3. The air volume regulating device for a powder concentrator according to claim 1, characterized in that: The upper and lower ends of each windshield plate (9) are respectively in sliding contact with the upper and lower inner surfaces of the shell (1); there is a gap between the front end of the windshield plate (9) on the front side of the rotating drum (5) and the front side plate of the shell (1), and a first vertical rod (13) is fixed on the inner surface of the shell (1) on the left side of the front end of the windshield plate (9) on the front side; there is a gap between the rear end of the windshield plate (9) on the rear side of the rotating drum (5) and the rear side plate of the shell (1), and a second vertical rod (14) is fixed on the inner surface of the shell (1) on the right side of the rear end of the windshield plate (9) on the rear side.

4. The air volume regulating device for a powder selecting machine according to claim 3, characterized in that: The upper end of the slide groove (8) is inclined clockwise relative to the lower end along the circumferential direction of the rotating drum (5).

5. The air volume regulating device for a powder selecting machine according to claim 4, characterized in that: When the driving rod (12) contacts the lower end of the slide hole (7), the free end of the driving rod (12) is located in the lower part of the slide groove (8), the front end of the left side of the wind shield plate (9) on the front side of the rotating drum (5) contacts the first vertical rod (13), and the distance between the front wind shield plate (9) and the front side plate of the shell (1) is blocked by the first vertical rod (13), and the rear end of the right side of the rear wind shield plate (9) contacts the second vertical rod (14), and the distance between the rear wind shield plate (9) and the rear side plate of the shell (1) is blocked by the second vertical rod (14).

6. The air volume regulating device for a powder concentrator according to claim 4, characterized in that: When the driving rod (12) contacts the upper end of the slide hole (7), the free end of the driving rod (12) is located in the upper part of the slide groove (8), and the driving rod (12) presses the slide groove (8) to drive the rotating drum (5) to rotate 90 degrees counterclockwise.

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