Petroleum fracturing propping agent cleaning and screening device

Abstract

The utility model relates to the technical field of proppant production, and discloses a petroleum fracturing proppant cleaning and screening device which comprises a workbench, a first installation shell is fixedly installed on the left side of the top of the workbench, and a fine particle discharging hopper is fixedly installed at the position, located at the lower end of the first installation shell, of the bottom of the workbench. A second mounting shell is fixedly mounted on the left side wall surface of the first mounting shell, a coarse particle discharging pipe is fixedly mounted at the bottom of the second mounting shell, a cleaning water tank is fixedly mounted at the top of the second mounting shell, a conveying pipe is fixedly mounted on the right side wall surface of the first mounting shell, and a feeding pipe is fixedly mounted at the top of the conveying pipe; through the arrangement of the automatic conveying and screening mechanism and the cleaning and screening assembly, proppant particles can be conveyed into the cleaning and screening assembly through the automatic conveying and screening mechanism to be centrifugally screened and cleaned, the proppant particles blocked in a cylinder screen can be scraped and cleaned by a fixed paddle in a rotating mode, and the cylinder screen does not need to be manually disassembled for cleaning; and the proppant particle screening effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of proppant production, in particular to a cleaning and screening device for oil fracturing proppant. Background Art

[0002] Petroleum proppants are also called petroleum fracturing proppants. During deep well exploitation of oil and gas, high closure pressure and low permeability ore deposits are treated by fracturing, which causes the oil and gas-bearing rock formations to crack, and the oil and gas are collected from the channels formed by the cracks. At this time, fluid needs to be injected into the rock base to exceed the rupture strength of the formation, so that cracks are generated in the rock formations around the wellbore, forming a channel with high-level flow capacity, in order to keep the cracks formed after fracturing open, so that oil and gas products can pass smoothly. Petroleum proppants need to be screened during the production process, so screening devices are used.

[0003] Existing oil fracturing proppant screening devices generally use vibrating screens for screening, which is not ideal for screening proppant particles. In addition, proppant particles are easily blocked on the screen, making it very troublesome to clean the screen, and the screen does not have the function of cleaning the proppant particles, which affects the subsequent normal use of the proppant.

[0004] To this end, we propose a petroleum fracturing proppant cleaning and screening device. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a cleaning and screening device for oil fracturing proppant.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cleaning and screening device for petroleum fracturing proppant, comprising a workbench, a first mounting shell is fixedly installed on the left side of the top of the workbench, a fine particle discharge hopper is fixedly installed on the bottom of the workbench at the lower end of the first mounting shell, a second mounting shell is fixedly installed on the left wall of the first mounting shell, a coarse particle discharge pipe is fixedly installed on the bottom of the second mounting shell, a clean water tank is fixedly installed on the top of the second mounting shell, a conveying pipe is fixedly installed on the right wall of the first mounting shell, a feeding pipe is fixedly installed on the top of the conveying pipe, a mounting plate is fixedly installed on the right wall of the conveying pipe, and the bottom of the mounting plate is fixedly connected to the right side of the top of the workbench, an automatic conveying and screening mechanism is arranged on the right wall of the mounting plate, a cleaning and screening assembly is arranged at the bottom of the clean water tank, the automatic conveying and screening mechanism comprises a servo motor, and the left wall of the servo motor is fixedly connected to the right wall of the mounting plate, the output end of the servo motor movably passes through the left wall of the mounting plate, the cleaning and screening assembly comprises a water inlet pipe, and the top of the water inlet pipe is fixedly connected to the bottom of the clean water tank.

[0007] Preferably, a screw conveyor is fixedly mounted on the output end of the servo motor, and the screw conveyor is located inside the conveying pipe, and a rotating main shaft is fixedly mounted on the left wall of the screw conveyor.

[0008] Preferably, a water pump is fixedly installed at the bottom of the water inlet pipe, and a water outlet pipe is fixedly installed on the right wall of the water pump.

[0009] Preferably, a limit bearing is provided on the left side wall of the rotating main shaft, and the outer wall of the limit bearing is movably connected to the inner wall of the cleaning and screening assembly.

[0010] Preferably, a mounting frame is fixedly mounted on the outer wall of the rotating main shaft, and a fixed blade is fixedly mounted on one end of the mounting frame away from the rotating main shaft.

[0011] Preferably, a mounting plate is fixedly mounted on the right wall of the water outlet pipe, and a coarse particle discharge port is provided on the left wall of the mounting plate.

[0012] Preferably, a cylindrical screen is fixedly mounted on the right side wall of the mounting plate, and the inner wall of the cylindrical screen is movably connected to the outer wall of the fixed blade.

[0013] Preferably, a water spray pipe is fixedly mounted on the inner wall of the mounting plate.

[0014] Preferably, the left side of the outer wall of the water spray pipe is fixedly connected to the outer wall of the water outlet pipe.

[0015] Beneficial Effects

[0016] The utility model provides a cleaning and screening device for oil fracturing proppant, which has the following beneficial effects:

[0017] (1) The oil fracturing proppant cleaning and screening device is provided with an automatic conveying and screening mechanism and a cleaning and screening assembly. The automatic conveying and screening mechanism can convey the proppant particles to the cleaning and screening assembly for centrifugal screening and cleaning. The proppant particles blocked in the cylindrical screen will be scraped and cleaned by the fixed blades. There is no need to manually disassemble the cylindrical screen for cleaning, thereby improving the effect of proppant particle screening.

[0018] (2) The oil fracturing proppant cleaning and screening device is provided with a limit bearing, which can play a role in limiting and stabilizing the fixed blades, preventing the mounting frame from shaking when rotating, thereby improving the stability of the entire automatic conveying and screening mechanism during operation.

[0019] (3) The oil fracturing proppant cleaning and screening device is provided with a screw conveyor, which can quickly convey the proppant particles, thereby improving the feeding efficiency of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0021] Figure 2 This is a front structural diagram of the automatic conveying and screening mechanism of the utility model;

[0022] Figure 3 It is a schematic diagram of the front structure of the cleaning and screening component of the utility model.

[0023] Legend: 10. Workbench; 11. First mounting shell; 12. Fine particle discharge hopper; 13. Second mounting shell; 14. Coarse particle discharge pipe; 15. Cleaning water tank; 16. Conveying pipe; 17. Feeding pipe; 18. Mounting plate; 19. Automatic conveying and screening mechanism; 20. Cleaning and screening assembly; 21. Water inlet pipe; 22. Water pump; 23. Water outlet pipe; 24. Mounting plate; 25. Coarse particle discharge port; 26. Cylindrical screen; 27. Water spray pipe; 28. Servo motor; 29. ​​Screw conveyor; 30. Rotating spindle; 31. Limit bearing; 32. Mounting frame; 33. Fixed blade. DETAILED DESCRIPTION

[0024] Embodiment 1: A cleaning and screening device for oil fracturing proppant, such as Figure 1 As shown, it includes a workbench 10, a first mounting shell 11 is fixedly installed on the left side of the top of the workbench 10, a fine particle discharge hopper 12 is fixedly installed at the bottom of the workbench 10 at the lower end of the first mounting shell 11, a second mounting shell 13 is fixedly installed on the left wall of the first mounting shell 11, a coarse particle discharge pipe 14 is fixedly installed on the bottom of the second mounting shell 13, a clean water tank 15 is fixedly installed on the top of the second mounting shell 13, a conveying pipe 16 is fixedly installed on the right wall of the first mounting shell 11, a feeding pipe 17 is fixedly installed on the top of the conveying pipe 16, and a mounting plate 1 is fixedly installed on the right wall of the conveying pipe 16 8, and the bottom of the mounting plate 18 is fixedly connected to the top right side of the workbench 10, the right wall of the mounting plate 18 is provided with an automatic conveying and screening mechanism 19, and the bottom of the clean water tank 15 is provided with a cleaning and screening component 20. By setting the automatic conveying and screening mechanism 19 and the cleaning and screening component 20, the proppant particles can be conveyed to the cleaning and screening component 20 for centrifugal screening and cleaning through the automatic conveying and screening mechanism 19, and the proppant particles blocked in the cylindrical screen 26 will be scraped and cleaned by the fixed blade 33, without the need to manually disassemble the cylindrical screen 26 for cleaning, thereby improving the effect of screening the proppant particles.

[0025] Embodiment 2: Based on Embodiment 1, Figure 2As shown, the automatic conveying and screening mechanism 19 includes a servo motor 28, and the left side wall of the servo motor 28 is fixedly connected to the right side wall of the mounting plate 18, the output end of the servo motor 28 movably penetrates the left side wall of the mounting plate 18, the output end of the servo motor 28 is fixedly installed with a screw conveyor 29, and the screw conveyor 29 is located inside the conveying pipe 16, the left side wall of the screw conveyor 29 is fixedly installed with a rotating spindle 30, the left side wall of the rotating spindle 30 is provided with a limiting bearing 31, and the outer wall of the limiting bearing 31 is movably connected to the inner wall of the cleaning and screening component 20, the outer wall of the rotating spindle 30 is fixedly installed with a mounting frame 32, and the end of the mounting frame 32 away from the rotating spindle 30 is fixedly installed with a fixed blade 33, by providing the limiting bearing 31, the limiting bearing 31 can play a role of limiting and stabilizing the fixed blade 33, prevent the mounting frame 32 from shaking when rotating, and improve the stability of the entire automatic conveying and screening mechanism 19 during operation.

[0026] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 3 As shown, the cleaning and screening assembly 20 includes a water inlet pipe 21, and the top of the water inlet pipe 21 is fixedly connected to the bottom of the cleaning water tank 15, a water pump 22 is fixedly installed at the bottom of the water inlet pipe 21, a water outlet pipe 23 is fixedly installed on the right side wall of the water pump 22, a mounting plate 24 is fixedly installed on the right side wall of the water outlet pipe 23, a coarse particle discharge port 25 is provided on the left side wall of the mounting plate 24, a cylindrical screen 26 is fixedly installed on the right side wall of the mounting plate 24, and the inner wall of the cylindrical screen 26 is movably connected to the outer wall of the fixed blade 33, a water spray pipe 27 is fixedly installed on the inner wall of the mounting plate 24, and the outer wall of the water spray pipe 27 is fixedly connected to the outer wall of the water outlet pipe 23 on the left side, and a screw conveyor 29 is provided, which can quickly transport the proppant particles, thereby improving the feeding efficiency of the entire device.

[0027] The working principle of the utility model is as follows: proppant particles are poured into the conveying pipe 16 through the feed pipe 17, and by turning on the output end of the servo motor 28, the output end of the mounting plate 18 drives the screw conveyor 29 to start rotating, and the screw conveyor 29 conveys the proppant particles in the conveying pipe 16 to the cylindrical screen 26, and by turning on the switch of the water pump 22, the water pump 22 conveys the clean water in the clean water tank 15 to the outlet pipe 23 through the water inlet pipe 21, and then sprays the clean water to the proppant particles in the cylindrical screen 26 through the water spray pipe 27. The proppant particles are cleaned, the screw conveyor 29 drives the rotating main shaft 30 to start rotating, the rotating main shaft 30 drives the fixed blade 33 to start rotating through the mounting frame 32, the fixed blade 33 continuously picks up the proppant particles so that the proppant particles are centrifugally thrown out and hit the cylindrical screen 26, the fine particle proppant is accelerated to pass through the cylindrical screen 26 and is discharged through the fine particle discharge hopper 12, the coarse particle proppant is intercepted by the cylindrical screen 26 and gradually transmitted to the coarse particle discharge port 25 and is discharged through the coarse particle discharge pipe 14.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A petroleum fracturing proppant cleaning and screening device, comprising a workbench (10), characterized in that: A first mounting shell (11) is fixedly mounted on the left side of the top of the workbench (10); a fine particle discharge hopper (12) is fixedly mounted on the bottom of the workbench (10) at the lower end of the first mounting shell (11); a second mounting shell (13) is fixedly mounted on the left wall of the first mounting shell (11); a coarse particle discharge pipe (14) is fixedly mounted on the bottom of the second mounting shell (13); a clean water tank (15) is fixedly mounted on the top of the second mounting shell (13); a conveying pipe (16) is fixedly mounted on the right wall of the first mounting shell (11); a feeding pipe (17) is fixedly mounted on the top of the conveying pipe (16); and a mounting pipe (18) is fixedly mounted on the right wall of the conveying pipe (16). The mounting plate (18) is provided with a bottom of the mounting plate (18) and a top right side of the workbench (10). The right side wall of the mounting plate (18) is provided with an automatic conveying and screening mechanism (19). The bottom of the clean water tank (15) is provided with a cleaning and screening assembly (20). The automatic conveying and screening mechanism (19) includes a servo motor (28). The left side wall of the servo motor (28) is fixedly connected to the right side wall of the mounting plate (18). The output end of the servo motor (28) movably passes through the left side wall of the mounting plate (18). The cleaning and screening assembly (20) includes a water inlet pipe (21). The top of the water inlet pipe (21) is fixedly connected to the bottom of the clean water tank (15).

2. The oil fracturing proppant cleaning and screening device according to claim 1, characterized in that: A screw conveyor (29) is fixedly mounted on the output end of the servo motor (28), and the screw conveyor (29) is located inside the conveying pipe (16). A rotating main shaft (30) is fixedly mounted on the left wall of the screw conveyor (29).

3. The oil fracturing proppant cleaning and screening device according to claim 1, characterized in that: A water pump (22) is fixedly mounted on the bottom of the water inlet pipe (21), and a water outlet pipe (23) is fixedly mounted on the right wall of the water pump (22).

4. The oil fracturing proppant cleaning and screening device according to claim 2, characterized in that: A limit bearing (31) is provided on the left side wall of the rotating main shaft (30), and the outer wall of the limit bearing (31) is movably connected to the inner wall of the cleaning and screening assembly (20).

5. The oil fracturing proppant cleaning and screening device according to claim 2, characterized in that: A mounting frame (32) is fixedly mounted on the outer wall of the rotating main shaft (30), and a fixed blade (33) is fixedly mounted on one end of the mounting frame (32) away from the rotating main shaft (30).

6. The oil fracturing proppant cleaning and screening device according to claim 3, characterized in that: A mounting plate (24) is fixedly mounted on the right wall surface of the water outlet pipe (23), and a coarse particle discharge port (25) is provided on the left wall surface of the mounting plate (24).

7. The oil fracturing proppant cleaning and screening device according to claim 6, characterized in that: A cylindrical screen (26) is fixedly mounted on the right wall of the mounting plate (24), and the inner wall of the cylindrical screen (26) is movably connected to the outer wall of the fixed blade (33).

8. The oil fracturing proppant cleaning and screening device according to claim 6, characterized in that: A water spray pipe (27) is fixedly mounted on the inner wall of the mounting plate (24).

9. The oil fracturing proppant cleaning and screening device according to claim 8, characterized in that: The left side of the outer wall of the water spray pipe (27) is fixedly connected to the outer wall of the water outlet pipe (23).

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