Surface oil removal mechanism for fracturing fluid treatment based on automatic deslagging

Abstract

The utility model discloses a surface oil removal mechanism for fracturing fluid treatment based on automatic deslagging, which comprises an oil removal shell, a cavity is arranged in the oil removal shell, the bottom surface of the cavity of the oil removal shell is inclined, and a liquid inlet pump is fixedly mounted at the upper end of the oil removal shell. The surface oil removal mechanism for fracturing fluid treatment based on automatic deslagging is provided with a first filter screen frame and a positioning clamping plate, so that when the surface oil removal mechanism works, impurities in incoming materials are filtered through the first filter screen frame, then the first filter screen frame is driven to descend by accumulation of the impurities, and finally the first filter screen frame is clamped and fixed by the positioning clamping plate; at the moment, a first magnet on the side face of the first filter screen frame repels a second magnet, so that the second magnet drives a linkage toothed plate to move, a guide plate is conveniently driven to rotate through a transmission gear, the raw materials are guided to enter a second filter box, the first filter screen frame is conveniently cleaned, and the device is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of fracturing fluid treatment, in particular to a surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge. Background Art

[0002] Fracturing fluid refers to a heterogeneous and unstable chemical system formed by a certain ratio of multiple additives. It is a working fluid used for fracturing oil and gas layers. Its main function is to transfer the high pressure formed by ground equipment to the formation, so that the formation breaks to form cracks and transport proppant along the cracks. The process of hydraulic fracturing of oil layers is to use a high-pressure and large-displacement pump on the ground. Using the principle of liquid pressure transmission, a liquid with a certain viscosity is injected into the oil layer at a pressure greater than the absorption capacity of the oil layer, and the pressure in the wellbore is gradually increased, thereby building up high pressure at the bottom of the well. When this pressure is greater than the ground stress near the well wall and the tensile strength of the formation rock, cracks will be generated in the formation near the bottom of the well. With the continuous deepening of the exploration and development of onshore natural gas fields in my country, the operating wastewater and produced wastewater generated by gas field exploitation are also increasing, which will also have an impact on the ecology of the gas field area that cannot be ignored.

[0003] After the fracturing operation is completed, the returned fracturing waste liquid contains various additives. If the fracturing return fluid is directly discharged, it will pollute the surrounding environment, especially crops and surface water systems. Therefore, it must be treated in a targeted manner before it can be normally reused, discharged or reinjected. The existing fracturing fluid needs to be filtered for impurities before treatment, such as the oilfield fracturing return fluid treatment equipment disclosed in publication number "CN213266063U", which effectively prevents granular debris in the return fluid from entering the guide pipe of the liquid pump through a filter mesh pad. However, in actual use, impurities accumulate quickly and cannot be effectively cleaned, which reduces the efficiency of liquid intake, increases the time for subsequent treatment, and reduces practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge, so as to solve the problem raised in the above background technology that impurities accumulate quickly during actual use and cannot be effectively cleaned, resulting in reduced efficiency of fluid intake, increased time for subsequent treatment, and reduced practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge, comprising an oil removal shell, a cavity is arranged inside the oil removal shell, and the bottom surface of the cavity of the oil removal shell is inclined, a liquid feed pump is fixedly installed on the upper end of the oil removal shell, a material guide pipe is installed through the surface of the liquid feed pump, the upper end of the material guide pipe is forked, a first filter box and a second filter box are fixedly installed on the upper ends of the material guide pipe, respectively, and a liquid feed pipe is fixedly installed on the upper surfaces of the first filter box and the second filter box, a driving motor is fixed inside the oil removal shell, and the output end of the driving motor passes through the inner wall of the oil removal shell, an oil-absorbing felt frame is fixedly installed on the output end of the driving motor, a first filter mesh frame is slidably connected to the inside of the first filter box, and an anti-blocking mechanism is arranged between the first filter box and the second filter box, which fixes the first filter mesh frame by a positioning card plate to facilitate the first magnet to repel the second magnet and the linkage tooth plate to move, and the linkage tooth plate drives the transmission gear and the guide plate to rotate to facilitate non-stop cleaning.

[0006] Preferably, a discharge pipe is provided at the lower end of the oil removal shell, the guide pipe is communicated with the oil removal shell, and the oil absorption felt frame is rotatably connected with the oil removal shell.

[0007] By adopting the above technical solution, the raw materials can be easily discharged through the discharge pipe of the oil removal shell, and the waste oil can be absorbed by the rotation of the oil absorption felt frame.

[0008] Preferably, the first filter box is slidably connected to the first filter mesh frame, and a spring is connected between the first filter mesh frame and the first filter box.

[0009] By adopting the above technical solution, impurities are filtered through the first filter rack, and the sliding of the first filter rack facilitates linkage.

[0010] Preferably, the anti-blocking mechanism includes a positioning card plate, which is slidably connected to the side surface of the first filter box, a first magnet is fixed to the side surface of the first filter rack, a linkage tooth plate is slidably connected inside the first filter box, and a second magnet is fixed to one end of the linkage tooth plate, a transmission gear is rotatably connected inside the first filter box, a guide plate is rotatably connected to the inner wall of the liquid inlet pipe cavity, a second filter rack is slidably connected to the inner wall of the cavity of the second filter box, a linkage block is slidably connected inside the second filter box, a connecting frame is fixed between the linkage block and the positioning card plate, an opening is provided on the rear surfaces of the first filter box and the second filter box, and a cleaning baffle is rotatably connected to the rear surfaces of the first filter box and the second filter box, and a cleaning motor is fixed to the rear surfaces of the first filter box and the second filter box.

[0011] By adopting the above technical solution, the positioning clamping plate is engaged and fixed to the first filter frame through the anti-blocking mechanism.

[0012] Preferably, the positioning clamping plate is snap-fitted with the first filter mesh frame, and the side surfaces of the first filter mesh frame and the second filter mesh frame are both provided with sealing baffles.

[0013] By adopting the above technical solution, the first filter frame drives the first magnet to repel the second magnet.

[0014] Preferably, the magnetic poles of the first magnet and the second magnet facing each other are the same, a spring is connected between the linkage tooth plate and the first filter box, a tooth block is provided on the surface of the linkage tooth plate, and the linkage tooth plate is meshed with the transmission gear through the tooth block.

[0015] By adopting the above technical solution, the second magnet drives the linkage toothed plate to slide, so that the linkage toothed plate drives the transmission gear to rotate.

[0016] Preferably, a sprocket is provided at one end of the transmission gear shaft, a sprocket is provided at one end of the guide plate shaft, and a transmission chain is provided between the sprocket of the guide plate and the sprocket of the transmission gear, an extrusion block is provided on the side of the second filter frame, a spring is connected between the connecting frame and the second filter box, and the rotating shaft of the cleaning baffle is fixedly connected to the output end of the cleaning motor.

[0017] By adopting the above technical solution, the guide plate is driven to rotate by the transmission gear to guide the flow, and the second filter frame is used for non-stop cleaning.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: the surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge:

[0019] 1. A first filter rack and a positioning card plate are provided, so that when the device is working, the impurities in the incoming material are filtered through the first filter rack, and then the accumulation of impurities will drive the first filter rack to descend, and finally the first filter rack will be clamped and fixed by the positioning card plate. At this time, the first magnet on the side of the first filter rack repels the second magnet, so that the second magnet drives the linkage gear plate to move, which is convenient for driving the guide plate to rotate through the transmission gear, thereby guiding the raw material into the second filter box, which is convenient for cleaning the first filter rack and preventing the device from being blocked;

[0020] 2. A guide plate and a linkage tooth plate are provided, so that when the device is working, the first filter frame drives the first magnet to descend, thereby repelling the second magnet, so that the second magnet drives the linkage tooth plate to slide, and the linkage tooth plate drives the transmission gear to rotate, and the transmission gear drives the guide plate to rotate through the transmission chain, so that the guide plate controls the raw materials to flow into the second filter box, preventing the first filter box from continuing to filter the raw materials;

[0021] 3. A cleaning baffle and a cleaning motor are provided so that when the device is working, the openings of the first filter box and the second filter box are blocked by the cleaning baffle, which does not affect the filtering of the raw materials. When cleaning is needed, the cleaning baffle is driven to rotate by the cleaning motor, so that after the cleaning baffle is rotated and opened, it is convenient to clean impurities and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the oil removal housing and the liquid inlet pump connected to the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the liquid inlet pump and the material guide pipe of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection between the first filter box and the second filter box of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the linkage gear plate and the second magnet connected to the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection between the transmission gear and the guide plate of the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of connecting the second filter frame and the linkage block of the utility model.

[0028] In the figure: 1. oil removal housing; 2. liquid inlet pump; 3. material guide pipe; 4. first filter box; 5. second filter box; 6. liquid inlet pipe; 7. drive motor; 8. oil absorption felt frame; 9. first filter frame; 10. positioning card plate; 11. first magnet; 12. linkage gear plate; 13. second magnet; 14. transmission gear; 15. guide plate; 16. second filter frame; 17. linkage block; 18. connecting frame; 19. cleaning baffle; 20. cleaning motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6The utility model provides a technical solution: a surface degreasing mechanism for fracturing fluid treatment based on automatic slag discharge, comprising a degreasing shell 1, a liquid inlet pump 2, a guide pipe 3, a first filter box 4, a second filter box 5, a liquid inlet pipe 6, a driving motor 7, an oil-absorbing felt frame 8, a first filter frame 9, a positioning card plate 10, a first magnet 11, a linkage gear plate 12, a second magnet 13, a transmission gear 14, a guide plate 15, a second filter frame 16, a linkage block 17, a connecting frame 18, a cleaning baffle 19 and a cleaning motor 20, the degreasing shell 1, a cavity is arranged inside thereof, and the bottom surface of the cavity of the degreasing shell 1 is inclined, and a discharge is arranged at the lower end of the degreasing shell 1. The guide pipe 3 is connected with the oil removal shell 1, the oil absorption felt frame 8 is rotatably connected with the oil removal shell 1, the first filter box 4 is slidably connected with the first filter mesh frame 9, and a spring is connected between the first filter mesh frame 9 and the first filter box 4. When using the device, the raw material is introduced from the liquid inlet pipe 6 through the liquid inlet pump 2 and the guide pipe 3, so that the raw material flows into the first filter box 4 under the guidance of the guide plate 15, so that the first filter mesh frame 9 in the first filter box 4 filters the raw material, and then the raw material enters the oil removal shell 1, and the oil absorption felt frame 8 is driven to rotate by the driving motor 7, so as to absorb and separate the waste oil, and finally the raw material is discharged from the discharge pipe at the lower end of the oil removal shell 1.

[0031] A liquid inlet pump 2 is fixedly installed on the upper end of the oil removal housing 1, and the anti-blocking mechanism includes a positioning card plate 10, which is slidably connected to the side surface of the first filter box 4, and a first magnet 11 is fixed to the side surface of the first filter frame 9. A linkage tooth plate 12 is slidably connected inside the first filter box 4, and a second magnet 13 is fixed at one end of the linkage tooth plate 12. A transmission gear 14 is rotatably connected inside the first filter box 4, and a guide plate 15 is rotatably connected to the inner wall of the cavity of the liquid inlet pipe 6. A second filter frame 16 is slidably connected to the inner wall of the cavity of the second filter box 5, and a linkage block 17 is slidably connected inside the second filter box 5. A connecting frame 18 is fixed between the block 17 and the positioning card plate 10, an opening is provided on the rear surfaces of the first filter box 4 and the second filter box 5, and a cleaning baffle 19 is rotatably connected to the rear surfaces of the first filter box 4 and the second filter box 5, and a cleaning motor 20 is fixed to the rear surfaces of the first filter box 4 and the second filter box 5. As the impurities accumulated on the surface of the first filter rack 9 increase, the first filter rack 9 slides down, and the first filter rack 9 is clamped and fixed by the positioning card plate 10. At this time, the first magnet 11 on the side of the first filter rack 9 approaches and repels the second magnet 13, so that the second magnet 13 drives the linkage tooth plate 12 to move.

[0032] A guide pipe 3 is installed through the surface of the liquid inlet pump 2, and the upper end of the guide pipe 3 is a fork design. The upper ends of the guide pipe 3 are respectively fixed with a first filter box 4 and a second filter box 5. The upper surfaces of the first filter box 4 and the second filter box 5 are fixed with a liquid inlet pipe 6. A drive motor 7 is fixed inside the oil removal housing 1, and the output end of the drive motor 7 penetrates the inner wall of the oil removal housing 1. The positioning card plate 10 is connected with the first filter frame 9 to form a snap connection. The side surfaces of the first filter frame 9 and the second filter frame 16 are both provided with sealing baffles. The first magnet 11 has the same magnetic pole as the end facing the second magnet 13. The linkage tooth plate 12 is connected with the first filter frame 11. A spring is connected between the boxes 4, and a tooth block is arranged on the surface of the linkage tooth plate 12, and the linkage tooth plate 12 is meshed with the transmission gear 14 through the tooth block. The transmission gear 14 is driven to rotate by the sliding of the linkage tooth plate 12, and the transmission gear 14 drives the guide plate 15 to rotate through the transmission chain, so that the guide plate 15 changes the flow direction of the raw material, so that the raw material flows into the second filter box 5 and is filtered through the second filter frame 16, while the first filter box 4 will not flow into the raw material. At this time, it is convenient to drive the cleaning baffle 19 to rotate through the cleaning motor 20, so that the cleaning baffle 19 can be rotated and opened to clean the impurities, thereby improving the convenience of cleaning.

[0033] An oil-absorbing felt frame 8 is fixedly installed at the output end of the driving motor 7, a first filter frame 9 is slidably connected inside the first filter box 4, an anti-blocking mechanism is arranged between the first filter box 4 and the second filter box 5, and the first filter frame 9 is fixed by a positioning card plate 10 so that the first magnet 11 repels the second magnet 13 and the linkage tooth plate 12 to move, and the linkage tooth plate 12 drives the transmission gear 14 and the guide plate 15 to rotate so as to facilitate non-stop cleaning, a sprocket is arranged at one end of the rotating shaft of the transmission gear 14, a sprocket is arranged at one end of the rotating shaft of the guide plate 15, and a transmission chain is arranged between the sprocket of the guide plate 15 and the sprocket of the transmission gear 14, an extrusion block is arranged on the side of the second filter frame 16, and the connecting frame 1 A spring is connected between 8 and the second filter box 5, and the rotating shaft of the cleaning baffle 19 is fixedly connected to the output end of the cleaning motor 20. After cleaning the first filter box 4, as the impurities on the surface of the second filter frame 16 increase, the second filter frame 16 is driven to descend, and the second filter frame 16 pushes the linkage block 17 and the connecting frame 18 to slide through the side extrusion block, and drives the positioning card plate 10 to slide through the connecting frame 18, thereby unlocking the first filter frame 9, so that the linkage tooth plate 12 is pushed to reset by the spring, and at the same time, the transmission gear 14 drives the guide plate 15 to rotate and reset, so that the raw material is filtered through the first filter box 4, which is convenient for cleaning the second filter box 5, thereby improving the practicality of the device.

[0034] Working principle: when using the surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge, firstly, raw materials are introduced from the liquid inlet pipe 6 through the liquid inlet pump 2 and the guide pipe 3, so that the guide plate 15 guides the raw materials to the first filter box 4, so that the first filter frame 9 filters impurities, and the driving motor 7 in the deoiling shell 1 drives the oil absorption felt frame 8 to rotate to absorb oil, and the first filter frame 9 is driven to slide down by the impurities and then is engaged by the positioning card plate 10, and at the same time, the first magnet 11 repels the second magnet 13, so that the second magnet 13 drives the linkage tooth plate 12 to slide, and the linkage tooth plate 12 drives the transmission gear 14 and the guide plate 15 to rotate, so that the raw materials flow to the second filter box 5, and the raw materials are filtered through the second filter frame 16, and the second filter frame 16 will push the linkage block 17 and the connecting frame 18 to slide after sliding down, so as to drive the positioning card plate 10 to unlock the first filter frame 9, and the cleaning baffle 19 is driven to rotate by the cleaning motor 20 for cleaning, thereby increasing the overall practicality.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface deoiling mechanism for fracturing fluid treatment based on automatic slag discharge, comprising a deoiling shell (1), a cavity is arranged inside the deoiling shell, and the bottom surface of the cavity of the deoiling shell (1) is designed to be inclined, a liquid inlet pump (2) is fixedly installed on the upper end of the deoiling shell (1), and a material guide pipe (3) is installed through the surface of the liquid inlet pump (2), characterized in that: The upper end of the guide pipe (3) is of a bifurcated design. A first filter box (4) and a second filter box (5) are respectively fixed to the upper end of the guide pipe (3). A liquid inlet pipe (6) is fixedly mounted on the upper surfaces of the first filter box (4) and the second filter box (5). A drive motor (7) is fixed inside the deoiling housing (1), and the output end of the drive motor (7) penetrates the inner wall of the deoiling housing (1). An oil-absorbing felt frame (8) is fixedly mounted on the output end of the drive motor (7). A first filter mesh frame (9) is slidably connected inside the first filter box (4). An anti-blocking mechanism is provided between the first filter box (4) and the second filter box (5). The first filter mesh frame (9) is fixed by a positioning card plate (10) so that the first magnet (11) repels the second magnet (13) and the linkage tooth plate (12) to move. The linkage tooth plate (12) drives the transmission gear (14) and the guide plate (15) to rotate so as to facilitate non-stop cleaning.

2. The surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge according to claim 1, characterized in that: A discharge pipe is provided at the lower end of the oil removal housing (1), the guide pipe (3) is connected to the oil removal housing (1), and the oil absorption felt frame (8) is rotatably connected to the oil removal housing (1).

3. The surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge according to claim 1, characterized in that: The first filter box (4) and the first filter mesh frame (9) are slidably connected, and a spring is connected between the first filter mesh frame (9) and the first filter box (4).

4. The surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge according to claim 1, characterized in that: The anti-blocking mechanism comprises a positioning card plate (10), the positioning card plate (10) being slidably connected to the side surface of the first filter box (4), a first magnet (11) being fixed to the side surface of the first filter frame (9), a linkage tooth plate (12) being slidably connected inside the first filter box (4), and a second magnet (13) being fixed at one end of the linkage tooth plate (12), a transmission gear (14) being rotatably connected inside the first filter box (4), a guide plate (15) being rotatably connected to the inner wall of the cavity of the liquid inlet pipe (6), and the second filter frame (9) being rotatably connected to the inner wall of the cavity of the liquid inlet pipe (6). A second filter frame (16) is slidably connected to the inner wall of the cavity of the box (5), a linkage block (17) is slidably connected inside the second filter box (5), a connecting frame (18) is fixed between the linkage block (17) and the positioning card plate (10), the rear surfaces of the first filter box (4) and the second filter box (5) are provided with openings, and the rear surfaces of the first filter box (4) and the second filter box (5) are rotatably connected to a cleaning baffle (19), and the rear surfaces of the first filter box (4) and the second filter box (5) are fixed to a cleaning motor (20).

5. The surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge according to claim 4, characterized in that: The positioning clamping plate (10) is in a clamping connection with the first filter mesh frame (9), and the side surfaces of the first filter mesh frame (9) and the second filter mesh frame (16) are both provided with sealing baffles.

6. The surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge according to claim 4, characterized in that: The magnetic poles of the first magnet (11) and the second magnet (13) facing each other are the same, a spring is connected between the linkage toothed plate (12) and the first filter box (4), a tooth block is provided on the surface of the linkage toothed plate (12), and the linkage toothed plate (12) is meshedly connected with the transmission gear (14) via the tooth block.

7. The surface oil removal mechanism for fracturing fluid treatment based on automatic slag discharge according to claim 4, characterized in that: A sprocket is provided at one end of the rotating shaft of the transmission gear (14), a sprocket is provided at one end of the rotating shaft of the guide plate (15), and a transmission chain is provided between the sprocket of the guide plate (15) and the sprocket of the transmission gear (14), an extrusion block is provided on the side of the second filter frame (16), a spring is connected between the connecting frame (18) and the second filter box (5), and the rotating shaft of the cleaning baffle (19) is fixedly connected to the output end of the cleaning motor (20).

Images