Discharging device for proppant granulation

Abstract

The utility model relates to a discharging device for proppant granulation. The discharging device comprises a blanking barrel and a shell, a plurality of first air holes are evenly distributed in the circumferential wall of the discharging barrel, a plurality of first elastic pieces corresponding to the first air holes are arranged on the outer wall of the discharging barrel, the upper ends of the first elastic pieces are fixedly connected with the portions, on the upper sides of the first air holes, of the outer wall of the discharging barrel, and the lower portions of the first elastic pieces cover the first air holes. The shell is detachably connected with the two connecting rings, second air holes are formed in the left portion and the right portion of the peripheral wall of the shell, second elastic pieces are arranged on the outer wall of the shell, the upper ends of the second elastic pieces are fixedly connected with the outer wall, on the upper sides of the corresponding second air holes, of the shell, the lower portions of the second elastic pieces cover the corresponding second air holes, and screens are arranged in the second air holes. The space between the shell and the discharging barrel is a collecting cavity, and a driving piece is arranged in the lower portion of the collecting cavity. The proppant granulating and discharging device solves the problems that large-particle proppants are mixed with powder and the mixed powder is difficult to collect in the proppant granulating and discharging process.

Description

Technical Field

[0001] The utility model relates to the technical field of proppant production, in particular to a discharging device used for proppant granulation. Background Art

[0002] Proppant granulation refers to the processing of proppant materials used in oil production, such as ceramsite sand and quartz sand, through specific equipment (such as a granulator) to form particles of a certain shape and size to improve the supporting force and oil recovery rate of oil wells. Powders may be mixed in the process of proppant granulation because the raw materials themselves contain fine powder particles, which are difficult to completely separate during the granulation process and will be mixed with larger particles; if the powders mixed in the process of proppant granulation are not separated from the proppant in time, it may affect the performance of the proppant in the subsequent use process and reduce its effect in oil production; and it is difficult to collect and reuse these powders mixed in the proppant. Summary of the invention

[0003] The utility model aims to solve the problem that large-particle proppant will be mixed with powder and the mixed powder is difficult to collect during the proppant granulation and discharge process, and provides a discharging device for proppant granulation, which can separate and collect the powder mixed in the large-particle proppant after granulation during the discharging.

[0004] In order to solve the above problems, the technical solution of the utility model is:

[0005] The discharging device of the present invention is a kind of discharging device for supporting agent granulation, comprising a discharge barrel and a shell; a plurality of air holes 1 are evenly distributed on the peripheral wall of the discharge barrel, a plurality of elastic sheets 1 corresponding to the air holes 1 are arranged on the outer wall of the discharge barrel, the upper end of the elastic sheet 1 is fixedly connected to the outer wall of the discharge barrel corresponding to the upper side of the air hole 1, and the lower part covers the corresponding air hole 1, and the upper and lower ends of the outer wall of the discharge barrel are both sleeved and fixed with connecting rings, and the shell is sleeved outside the two connecting rings and is detachably connected to the two connecting rings, and air holes 2 are arranged on the left and right parts of the peripheral wall of the shell, and an elastic sheet 2 corresponding to the air holes 2 is arranged on the outer wall of the shell, the upper end of the elastic sheet 2 is fixedly connected to the outer wall of the shell corresponding to the upper side of the air holes 2, and the lower part covers the corresponding air holes 2, and a screen is arranged in the air holes 2; the space between the shell and the discharge barrel is a collecting chamber, and a driving member is arranged in the lower part of the collecting chamber, and the driving member drives the gas in the discharge barrel to enter the collecting chamber through the air hole 1, and then discharge the collecting chamber through the air hole 2.

[0006] Furthermore, the lower barrel is a barrel with a circular inner part and a square outer part, and the elastic sheet 1 and the elastic sheet 2 are both made of polyethylene material and are elastic rectangular sheets.

[0007] Furthermore, the front and rear parts of the outer wall of the lower barrel between the two connecting rings are connected with partitions, the upper and lower ends of the partitions are respectively fixedly connected to the two connecting rings, and the opposite ends of the two partitions are in contact with the shell.

[0008] Furthermore, the driving member includes a movable plate and a pull rope. The movable plate is a C-shaped plate body. The two movable plates slide up and down and are stuck outside the left and right parts of the unloading barrel. The ends of the two movable plates both slide in contact with the partition on the same side, and the outer side surfaces of the two movable plates slide in contact with the inner surface of the shell. A hydraulic cylinder is fixed to the left part of the top surface of the lower connecting ring, and the piston end of the hydraulic cylinder is connected to the left movable plate. A spring is connected between the right movable plate and the lower connecting ring. One end of the pull rope is connected to the bottom surface of the left movable plate, and the other end moves through the front partition to connect to the bottom surface of the right movable plate.

[0009] Furthermore, the upper end of the lower barrel is connected with a connecting pipe.

[0010] Furthermore, a bearing column is provided in the middle of the discharge barrel, and a spiral guide plate is fixedly arranged on the outer surface of the bearing column, and the outer end of the guide plate is fixedly connected to the inner wall of the discharge barrel.

[0011] Through the above technical solution, the beneficial effects of the utility model are:

[0012] The utility model drives the gas in the discharge barrel to enter the collection chamber through the first air hole through the driving part, and then discharges the collection chamber through the second air hole. When the proppant is discharged through the discharge barrel, the gas carries the powder to be collected in the collection chamber, while the granulated proppant will not enter the collection chamber. The proppant and the powder can be separated, and the powder can be collected.

[0013] When the proppant of the utility model is discharged into the discharge barrel, the movement time of the proppant and the powder in the discharge barrel can be prolonged through the guide plate, which can be more conducive to the collection of the powder.

[0014] The utility model can clean and utilize the collected powder by dismantling the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a sectional front view of the utility model (the bearing column and the guide plate are not cut);

[0017] Figure 3 This is a schematic diagram of the structure of the connection between the lower barrel and the driving member of the utility model. Figure 1 ;

[0018] Figure 4 This is a schematic diagram of the structure of the connection between the lower barrel and the driving member of the utility model. Figure 2 ;

[0019] Figure 5 It is a structural schematic diagram of the unloading barrel of the utility model (elastic sheet is hidden).

[0020] The numbers in the accompanying drawings are: 1. discharge barrel, 2. shell, 3. air hole 1, 4. elastic sheet 1, 5. connecting ring, 6. air hole 2, 7. elastic sheet 2, 8. screen, 9. bolt 1, 10. bolt 2, 11. partition, 12. movable plate, 13. pull rope, 14. hydraulic cylinder, 15. spring, 16. connecting pipe, 17. load-bearing column, 18. guide plate. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] like Figure 1 to Figure 5 As shown, a discharging device for proppant granulation comprises a discharge barrel 1 and a shell 2; the two ends of the discharge barrel 1 are open, a plurality of air holes 3 are evenly distributed on the peripheral wall of the discharge barrel 1, a plurality of elastic sheets 4 corresponding to the air holes 3 are arranged on the outer wall of the discharge barrel 1, the upper end of the elastic sheet 4 is fixedly connected to the outer wall of the discharge barrel 1 on the upper side of the corresponding air holes 3, and the lower part covers the corresponding air holes 3, the air holes 3 are circular holes penetrating the inner and outer walls of the discharge barrel 1, the upper and lower ends of the outer wall of the discharge barrel 1 are sleeved and fixed with connecting rings 5, the connecting ring 5 is a rectangular annular body with an inner ring fixedly connected to the outer wall of the discharge barrel 1, and the shell 2 is a rectangular cylinder with two ends open, The shell 2 is sleeved on the outside of the two connecting rings 5 ​​and is detachably connected to the two connecting rings 5. The left and right parts of the peripheral wall of the shell 2 are provided with air holes 6. The outer wall of the shell 2 is provided with elastic sheets 7 corresponding to the air holes 6. The upper end of the elastic sheet 7 is fixedly connected to the outer wall of the shell 2 on the upper side of the corresponding air holes 6, and the lower part covers the corresponding air holes 6. A screen 8 is provided in the air holes 6, and the air holes 6 are circular holes that penetrate the inner and outer walls of the shell 2; the space between the shell 2 and the discharge barrel 1 is a collecting chamber, and a driving member is provided in the lower part of the collecting chamber, and the driving member drives the gas in the discharge barrel 1 to enter the collecting chamber through the air holes 3, and then discharge the gas from the collecting chamber through the air holes 6.

[0023] The discharge barrel 1 is a barrel with a round inner side and a square outer side. The elastic sheet 1 4 and the elastic sheet 2 7 are both made of polyethylene material and are elastic rectangular sheets.

[0024] The upper end of the peripheral wall of the shell 2 is penetrated by multiple bolts 9, and the end of each bolt 9 extends into and is threadedly connected to the connecting ring 5 on the upper side; the lower end of the peripheral wall of the shell 2 is penetrated by multiple bolts 10, and the end of each bolt 10 extends into and is threadedly connected to the connecting ring 5 on the lower side.

[0025] The front and rear parts of the outer wall of the lower barrel 1 between the two connecting rings 5 ​​are connected with partitions 11, and the partitions 11 are rectangular plates; the upper and lower ends of the partitions 11 are fixedly connected to the two connecting rings 5 ​​respectively, and the opposite ends of the two partitions 11 are in contact with the shell 2.

[0026] The driving member includes a movable plate 12 and a pull rope 13. The movable plate 12 is a C-shaped plate body. The two movable plates 12 slide up and down and are stuck outside the left and right parts of the unloading barrel 1. The ends of the two movable plates 12 both slide in contact with the partition 11 on the same side, and the outer side surfaces of the two movable plates 12 slide in contact with the inner surface of the shell 2; a hydraulic cylinder 14 is fixed to the left part of the top surface of the lower connecting ring 5, and the piston end of the hydraulic cylinder 14 is connected to the left movable plate 12, and a spring 15 is connected between the right movable plate 12 and the lower connecting ring 5. One end of the pull rope 13 is connected to the bottom front of the left movable plate 12, and the other end moves through the front partition 11 to connect to the bottom front of the right movable plate 12.

[0027] When the piston end of the hydraulic cylinder 14 drives the left movable plate 12 to move downward to the limit state, the spring 15 is in a natural state, the right movable plate 12 moves upward to the limit state and is lower than the elastic sheet 4 at the lower end, and the right movable plate is higher than the left movable plate; when the piston end of the hydraulic cylinder 14 drives the left movable plate 12 to move upward to the limit state, the left movable plate 12 is lower than the elastic sheet 4 at the lower end.

[0028] The upper end of the lower barrel 1 is connected with a connecting pipe 16 , and the inner diameter of the connecting pipe 16 is equal to the inner diameter of the lower barrel 1 .

[0029] A bearing column 17 is provided in the middle of the discharge barrel 1 . The bearing column 17 is a cylinder. A spiral guide plate 18 is fixedly disposed on the outer surface of the bearing column 17 . The outer end of the guide plate 18 is fixedly connected to the inner wall of the discharge barrel 1 .

[0030] The utility model is connected to the discharge port of the granulation device through the connecting pipe 16, and is arranged vertically; when in use, in the initial state, the spring 15 is in a natural state, and the movable plate 12 on the right is higher than the movable plate 12 on the left; the proppant after the granulation of the granulation device is completed enters the discharge barrel 1 through the connecting pipe 16, and because the guide plate 18 in the discharge barrel 1 is spiral, the proppant moves downward along the guide plate 18, which can extend the time for the proppant to move in the discharge barrel 1; at the same time, the hydraulic cylinder 14 is started, and the piston end of the hydraulic cylinder 14 drives the movable plate 12 on the left The plate 12 moves upward, and when the movable plate 12 on the left moves upward, the movable plate 12 on the right moves downward through the pull rope 13, and the spring 15 is compressed. When the movable plate 12 on the left moves upward, the gas in the collecting chamber on the left side of the partition 11 is squeezed, and the elastic sheet 27 is pressed outward, and the elastic sheet 27 is bent, and the pore 26 on the left side of the shell 2 is opened, while the elastic sheet 14 on the left side of the partition 11 is arranged in the collecting chamber, and the elastic sheet 14 is squeezed and does not deform, and the pore 13 is still blocked, and the gas in the collecting chamber on the left side of the partition 11 passes through the pore 27 on the left side. 6 is discharged from the collecting chamber; when the movable plate 12 on the right side moves downward, the air pressure in the collecting chamber on the right side of the partition 11 decreases, and the gas in the lower barrel 1 will press the elastic sheet 1 on the right side of the partition 11, causing the elastic sheet 14 to deform, and the air hole 13 on the right side of the partition 11 opens, while the elastic sheet 27 is located outside the shell 2. When the air pressure in the collecting chamber on the right side of the partition 11 decreases, the elastic sheet 27 will not deform. Therefore, the gas in the lower barrel 1 will carry the powder mixed in the proppant into the collecting chamber on the right side of the partition 11 through the air hole 13 on the right side of the partition 11. When the hydraulic cylinder 14 drives the movable plate 12 on the left to move downward, the movable plate 12 on the right moves upward under the restoring force of the spring 15, and the gas in the discharge barrel will carry the powder mixed in the proppant into the collecting chamber on the left side of the partition 11 through the air hole 13 on the left side of the partition 11. When the right movable plate 12 moves upward, the gas in the collecting chamber on the right side of the partition 11 is driven to be discharged through the air hole 2 6 on the right side. Since the screen 8 is provided on the air hole 2 6, only the gas can pass through, and the powder in the collecting chamber on the right side of the partition 11 will still be retained in the collecting chamber;

[0031] Therefore, when the granulated proppant is discharged through the discharge barrel 1, the hydraulic cylinder 14 drives the two movable plates 12 to reciprocate up and down, which can drive the powder in the discharge barrel 1 into the collection chamber. Since the proppant is heavier than the powder, it is less affected by the gas, so the powder and the granulated proppant can be separated, and the powder can be collected.

[0032] The shell 2 can be disassembled to collect the powder in the collection chamber for reuse.

[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 discharging device for proppant granulation, characterized in that: The invention comprises a lower material barrel (1) and a shell (2); a plurality of air holes (3) are evenly distributed on the peripheral wall of the lower material barrel (1); a plurality of elastic sheets (4) corresponding to the air holes (3) are arranged on the outer wall of the lower material barrel (1); the upper ends of the elastic sheets (4) are fixedly connected to the outer wall of the lower material barrel (1) on the upper side of the corresponding air holes (3); the lower ends of the outer wall of the lower material barrel (1) are both sleeved and fixed with connecting rings (5); the shell (2) is sleeved outside the two connecting rings (5) and is detachably connected to the two connecting rings (5); the left peripheral wall of the shell (2) is fixedly connected to the outer wall of the lower material barrel (1) and the lower peripheral wall of the shell (2) is fixedly connected to the outer wall of the lower material barrel (1) and the corresponding air holes (3) are covered by the elastic sheets (4); the upper and lower ends of the outer wall of the lower material barrel (1) are sleeved and fixed with connecting rings (5); the shell (2) is sleeved outside the two connecting rings (5) and is detachably connected to the two connecting rings (5); the left peripheral wall of the shell (2) is fixedly connected to the outer wall of the lower material barrel (1) and the corresponding air holes (3) are covered by the elastic sheets (4); the upper and lower ends of the outer wall of the lower material barrel (1) are ... A second air hole (6) is provided on the right part, and a second elastic sheet (7) corresponding to the second air hole (6) is provided on the outer wall of the shell (2), the upper end of the second elastic sheet (7) is fixedly connected to the outer wall of the shell (2) on the upper side of the corresponding second air hole (6), and the lower part covers the corresponding second air hole (6), and a screen (8) is provided in the second air hole (6); the space between the shell (2) and the lower barrel (1) is a collecting chamber, and a driving member is provided in the lower part of the collecting chamber, and the driving member drives the gas in the lower barrel (1) to enter the collecting chamber through the first air hole (3) and then discharge the gas from the collecting chamber through the second air hole (6).

2. A discharging device for proppant granulation according to claim 1, characterized in that: The discharge barrel (1) is a barrel with a circular inner surface and a square outer surface. The elastic sheet 1 (4) and the elastic sheet 2 (7) are both made of polyethylene material and are elastic rectangular sheets.

3. A discharging device for proppant granulation according to claim 1, characterized in that: The front and rear parts of the outer wall of the lower barrel (1) between the two connecting rings (5) are both connected with partitions (11), the upper and lower ends of the partitions (11) are respectively fixedly connected to the two connecting rings (5), and the opposite ends of the two partitions (11) are in contact with the shell (2).

4. A discharging device for proppant granulation according to claim 3, characterized in that: The driving member comprises a movable plate (12) and a pull rope (13), wherein the movable plate (12) is a C-shaped plate body, wherein the two movable plates (12) slide up and down and are clamped outside the left and right parts of the lower barrel (1), and the ends of the two movable plates (12) both slide in contact with the partition plate (11) on the same side, and the outer side surfaces of the two movable plates (12) slide in contact with the inner surface of the shell (2); a hydraulic cylinder (14) is fixed to the left part of the top surface of the lower connecting ring (5), and the piston end of the hydraulic cylinder (14) is connected to the left movable plate (12), and a spring (15) is connected between the right movable plate (12) and the lower connecting ring (5); one end of the pull rope (13) is connected to the bottom surface of the left movable plate (12), and the other end movably passes through the partition plate (11) on the front side to connect to the bottom surface of the right movable plate (12).

5. A discharging device for proppant granulation according to claim 1, characterized in that: The upper end of the lower barrel (1) is connected to a connecting pipe (16).

6. A discharging device for proppant granulation according to claim 1, characterized in that: A bearing column (17) is provided in the middle of the unloading barrel (1), and a spiral guide plate (18) is fixedly arranged outside the bearing column (17), and the outer end of the guide plate (18) is fixedly connected to the inner wall of the unloading barrel (1).

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