Waste oil-based mud while-drilling treatment device

Abstract

The utility model relates to the field of solid-liquid waste treatment, and discloses a waste oil-based mud while-drilling treatment device which comprises a fixing frame, a stirring barrel is fixedly connected to the side wall of the fixing frame, a stirring assembly is arranged in the stirring barrel, a filtering barrel is fixedly connected to the side wall of the fixing frame, and a filtering assembly is arranged in the filtering barrel. The filtering assembly comprises a discharging pipe, the side wall of the discharging pipe is fixedly connected to the side wall of the filtering barrel, a square groove is formed in the filtering barrel, and a fixing rod is arranged in the filtering barrel. According to the slurry solid-liquid separation device, treated slurry enters the filtering barrel through the conveying pipe and is filtered by the two layers of filtering frames, the first motor is started, the first rotating shaft drives the gear, the eccentric wheel knocks the filtering frames through chain transmission, the fixing block slides on the fixing rod to extrude the spring, and solid-liquid separation of the slurry is achieved; the problem that the solid-liquid separation speed of traditional gravity settling and single-layer filtering is low is solved, and the separation efficiency and effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of solid and liquid waste treatment, and in particular to a device for treating waste oil-based drilling mud during drilling. Background Technology

[0002] In oil and gas drilling operations, the treatment of waste oil-based drilling mud is a critical and urgent problem. Oil-based drilling mud possesses excellent properties for lubrication, cooling the drill bit, and carrying cuttings during drilling. However, as drilling progresses, a large amount of waste oil-based drilling mud is generated. This waste oil-based drilling mud contains petroleum substances, heavy metals, and various chemical additives. If not treated promptly and effectively, it will cause serious pollution to the surrounding soil, water bodies, and atmosphere. Furthermore, directly discharging waste oil-based drilling mud also wastes resources, as some of the oil and water components can be recycled and reused.

[0003] Currently, the most common technology for treating waste oil-based sludge is the use of large-scale centralized treatment equipment. These devices are typically based on traditional gravity settling and simple filtration mechanisms. The technical principle involves transporting the collected waste oil-based sludge to a large settling tank. Relying on the density difference between solid particles and liquid in the sludge, gravity causes the solid particles to gradually settle to the bottom of the tank, while the liquid remains on the surface. Subsequently, the upper liquid is filtered through a simple single-layer filter to further separate any remaining fine particles.

[0004] Since the settling velocity of solid particles in the drilling mud is greatly affected by factors such as particle size and mud viscosity, relying solely on gravity settling and single-layer filtration, the settling process may take a long time for some fine particles and high-viscosity mud. Moreover, the efficiency of single-layer filtration is limited, making it difficult to quickly and effectively separate solids and liquids. Therefore, a waste oil-based drilling mud treatment device is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a waste oil-based mud treatment device for drilling, which aims to improve the problem of slow solid-liquid separation speed under the traditional gravity sedimentation and single-layer filtration methods in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waste oil-based drilling mud treatment device includes a fixed frame, a mixing tank fixedly connected to the side wall of the fixed frame, a mixing assembly disposed inside the mixing tank, and a filter tank fixedly connected to the side wall of the fixed frame, a filter assembly disposed inside the filter tank.

[0008] The filter assembly includes a discharge pipe, the side wall of which is fixedly connected to the side wall of the filter barrel. A square groove is formed inside the filter barrel. A fixing rod is installed inside the filter barrel, its side wall fixedly connected to the square groove. A filter frame is slidably connected inside the filter barrel. A fixing block is fixedly connected to the side wall of the filter frame. The side wall of the fixing block is slidably connected to the side wall of the fixing rod. A spring is sleeved on the side wall of the fixing rod. One end of the spring is fixedly connected to the square groove, and the other end is fixedly connected to the side wall of the fixing block. A fixing frame is fixedly connected to the side wall of the filter barrel, and a vibration assembly is installed inside the fixing frame.

[0009] As a further description of the above technical solution:

[0010] The stirring assembly includes a feed pipe, the side wall of which is fixedly connected to the side wall of the stirring tank, and a connecting pipe is fixedly connected to the side wall of the stirring tank.

[0011] As a further description of the above technical solution:

[0012] The mixing tank is rotatably connected to a second rotating shaft, and a stirring blade is fixedly connected to the side wall of the second rotating shaft;

[0013] As a further description of the above technical solution:

[0014] A second motor is installed on the side wall of the mixing tank, and the output end of the second motor is connected to the second rotating shaft.

[0015] As a further description of the above technical solution:

[0016] A conveying pipe is fixedly connected to the side wall of the mixing tank, and the side wall of the conveying pipe is fixedly connected to the side wall of the filter tank.

[0017] As a further description of the above technical solution:

[0018] The conveying pipe is rotatably connected to an auger, and a motor is installed on the side wall of the conveying pipe. The output end of the motor is connected to the auger.

[0019] As a further description of the above technical solution:

[0020] The vibration assembly includes a rotating shaft, one side wall of which is rotatably connected to the inside of the filter barrel, a gear is fixedly connected to one side wall of the rotating shaft, and a chain is rotatably connected between the gears;

[0021] As a further description of the above technical solution:

[0022] A motor is provided on the side wall of the fixed frame. The output end of the motor is connected to the rotating shaft. An eccentric wheel is fixedly connected to one side wall of the rotating shaft. The side wall of the eccentric wheel is rotatably connected to the side wall of the filter frame.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the treated slurry enters the filter tank through the conveying pipe. Two filter frames inside the tank filter the slurry. When the motor is started, the rotating shaft drives the gear to rotate. The upper gear drives the lower gear through the chain, causing the eccentric wheel to rotate and strike the filter frame. When the filter frame moves, the fixed block slides on the side wall of the fixed rod and squeezes the spring, realizing the solid-liquid separation of the slurry. This solves the problem of slow solid-liquid separation speed under the traditional gravity sedimentation and single-layer filtration methods. The above technical solution improves the efficiency and effect of solid-liquid separation of slurry.

[0025] 2. In this utility model, waste oil-based mud enters the mixing tank through the feed pipe, and chemical agents are injected synchronously through the connecting pipe. The second motor is started, and the second rotating shaft drives the mixing blades to stir, accelerating the diffusion of the agents. After stirring is completed, the third motor is started to drive the auger to transport the mud to the filter tank for filtration. This solves the problem that the waste oil-based mud has high viscosity, large particle movement resistance, and is difficult to pass through the screen. The above technical solution makes it easier to separate particles in the mud, speeds up the separation, and improves the separation quality. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a waste oil-based drilling mud treatment device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the filter barrel of a waste oil-based mud drilling treatment device proposed in this utility model.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the internal structure of the mixing tank of a waste oil-based mud drilling treatment device proposed in this utility model.

[0030] Legend:

[0031] 1. Fixed frame; 2. Mixing tank; 3. Filter tank; 4. Discharge pipe; 5. Square trough; 6. Fixed rod; 7. Filter frame; 8. Fixed block; 9. Spring; 10. Fixed frame; 11. Rotating shaft one; 12. Gear; 13. Chain; 14. Motor one; 15. Eccentric wheel; 16. Feed pipe; 17. Connecting pipe; 18. Rotating shaft two; 19. Mixing blade; 20. Motor two; 21. Conveying pipe; 22. Screwdriver; 23. Motor three. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a waste oil-based drilling mud treatment device, comprising a fixed frame 1, a mixing tank 2 fixedly connected to the side wall of the fixed frame 1, a mixing assembly disposed inside the mixing tank 2, a filter tank 3 fixedly connected to the side wall of the fixed frame 1, a filter assembly disposed inside the filter tank 3; the filter assembly includes a discharge pipe 4 fixedly connected to the side wall of the filter tank 3, a square groove 5 opened inside the filter tank 3, a fixing rod 6 disposed inside the filter tank 3, the side wall of the fixing rod 6 fixedly connected to the square groove 5, a filter frame 7 slidably connected inside the filter tank 3, the filter frame 7 being used for physical filtration of the mud, initially separating the solid particles and liquid in the mud, and a fixing block 8 fixedly connected to the side wall of the filter frame 7, the side wall of the fixing block 8 being slidably connected to... A spring 9 is fitted onto the side wall of the fixed rod 6. One end of the spring 9 is fixedly connected to the inside of the square groove 5, and the other end of the spring 9 is fixedly connected to the side wall of the fixed block 8. A fixed frame 10 is fixedly connected to the side wall of the filter barrel 3. A vibration assembly is provided inside the fixed frame 10. The vibration assembly includes a rotating shaft 11. The side wall of the rotating shaft 11 is rotatably connected to the inside of the filter barrel 3. A gear 12 is fixedly connected to the side wall of the rotating shaft 11. A chain 13 is rotatably connected between the gears 12. A motor 14 is provided on the side wall of the fixed frame 10. The output end of the motor 14 is connected to the rotating shaft 11. An eccentric wheel 15 is fixedly connected to the side wall of the rotating shaft 11. The eccentric wheel 15 is used to strike the filter frame 7 to make it move. The side wall of the eccentric wheel 15 is rotatably connected to the side wall of the filter frame 7.

[0034] The treated slurry is fed into the filter tank 3 through the conveying pipe 21. The conveying pipe 21 serves as a channel for slurry transportation, continuously delivering the treated slurry to the filter tank 3. The filter tank 3 contains two layers of filter frames 7 for filtration. The main function of the filter frames 7 is to physically filter the slurry, using their filtration structure to initially separate solid particles and liquid in the slurry. Then, the motor 14 is started, causing the rotating shaft 11 to rotate. The rotating shaft 11 transmits power, driving the gear 12 to rotate. The upper gear 12 drives the lower gear 12 to rotate together via the chain 13. The chain 13 ensures power transmission between the gears 12, guaranteeing that both gears 12 rotate in sync. The eccentric wheel 15 rotates, causing it to rotate. During rotation, the eccentric wheel 15 generates irregular motion trajectories, which in turn strike the filter frame 7. The filter frame 7 moves after being struck, causing the fixed block 8 to slide against the side wall of the fixed rod 6. The fixed rod 6 provides guidance for the sliding of the fixed block 8. At the same time, the fixed block 8 compresses the spring 9 during the sliding process. The spring 9 has the function of buffering and storing energy. After being compressed, it generates a rebound force, which helps the filter frame 7 return to its original position. The strike of the eccentric wheel 15 causes the filter frame 7 to vibrate, preventing solid particles from clogging the filter holes of the filter frame 7, accelerating the solid-liquid separation process of the mud, and improving the efficiency and effect of solid-liquid separation.

[0035] Reference Figure 1 and Figure 4 The mixing assembly includes a feed pipe 16, which is fixedly connected to the side wall of the mixing tank 2. A connecting pipe 17 is fixedly connected to the side wall of the mixing tank 2. A rotating shaft 18 is rotatably connected inside the mixing tank 2. A stirring blade 19 is fixedly connected to the side wall of the rotating shaft 18. The stirring blade 19 is used to stir the mud and chemical agents and accelerate the diffusion of the agents in the mud. A motor 20 is installed on the side wall of the mixing tank 2. The output end of the motor 20 is connected to the rotating shaft 18. A conveying pipe 21 is fixedly connected to the side wall of the mixing tank 2. The conveying pipe 21 is used to continuously transport the treated mud to the filter tank 3. The side wall of the conveying pipe 21 is fixedly connected to the side wall of the filter tank 3. An auger 22 is rotatably connected inside the conveying pipe 21. A motor 23 is installed on the side wall of the conveying pipe 21. The output end of the motor 23 is connected to the auger 22.

[0036] Waste oil-based sludge is fed into the mixing tank 2 through the feed pipe 16, which serves as the channel for the sludge to enter the mixing tank 2. Chemical agents are then fed into the mixing tank 2 through the connecting pipe 17, which transports the chemicals to the mixing tank 2, allowing them to come into contact with the waste oil-based sludge. Motor 20 is then started, causing the rotating shaft 18 to rotate. The rotating shaft 18 drives the stirring blades 19 on the side wall to stir the sludge and chemicals. During rotation, the stirring blades 19 thoroughly stir the sludge and chemicals, accelerating the diffusion of the chemicals in the sludge and allowing them to mix more quickly and evenly. This promotes the reaction between the chemicals and particles in the sludge, improving the flocculation and sedimentation effects. After stirring, motor 23 is started, providing power for the rotation of the auger 22, which then transports the stirred sludge from the mixing tank 2 to the filter tank 3 for filtration.

[0037] Working principle: The treated mud is fed into the filter tank 3 through the feed pipe 21. The filter tank 3 is equipped with two layers of filter frames 7 for filtration. Then, the motor 14 is started to rotate the rotating shaft 11, which drives the gear 12 to rotate. The upper gear 12 drives the lower gear 12 to rotate together through the chain 13, which in turn drives the eccentric wheel 15 to rotate and strike the filter frame 7. The movement of the filter frame 7 causes the fixed block 8 to slide on the side wall of the fixed rod 6 and squeeze the spring 9. The eccentric wheel 15 strikes to separate the solid and liquid of the mud.

[0038] Waste oil-based mud is fed into the mixing tank 2 through the feed pipe 16. Chemical agents are then fed into the mixing tank 2 through the connecting pipe 17. The second motor 20 is started to rotate the second rotating shaft 18, which drives the stirring blades 19 on the side wall to stir the mud and accelerate the diffusion of the agents in the mud. After stirring, the third motor 23 is started to rotate the auger 22 and transport the mud to the filter tank 3 for filtration.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste oil-based drilling mud treatment device, comprising a fixing frame (1), characterized in that: The side wall of the fixed frame (1) is fixedly connected to a stirring tank (2), and a stirring assembly is provided inside the stirring tank (2). The side wall of the fixed frame (1) is fixedly connected to a filter tank (3), and a filter assembly is provided inside the filter tank (3). The filter assembly includes a discharge pipe (4), the side wall of which is fixedly connected to the side wall of the filter barrel (3). A square groove (5) is provided inside the filter barrel (3). A fixing rod (6) is provided inside the filter barrel (3). The side wall of the fixing rod (6) is fixedly connected to the square groove (5). A filter frame (7) is slidably connected inside the filter barrel (3). A fixing block (8) is fixedly connected to the side wall of the filter frame (7). The side wall of the fixing block (8) is slidably connected to the side wall of the fixing rod (6). A spring (9) is sleeved on the side wall of the fixing rod (6). One end of the spring (9) is fixedly connected to the inside of the square groove (5). The other end of the spring (9) is fixedly connected to the side wall of the fixing block (8). A fixing frame (10) is fixedly connected to the side wall of the filter barrel (3). A vibration assembly is provided inside the fixing frame (10).

2. The waste oil-based drilling mud treatment device according to claim 1, characterized in that: The stirring assembly includes a feed pipe (16), the side wall of which is fixedly connected to the side wall of the stirring tank (2), and a connecting pipe (17) is fixedly connected to the side wall of the stirring tank (2).

3. The waste oil-based drilling mud treatment device according to claim 2, characterized in that: The mixing tank (2) is rotatably connected to a second rotating shaft (18), and a stirring blade (19) is fixedly connected to the side wall of the second rotating shaft (18).

4. The waste oil-based drilling mud treatment device according to claim 3, characterized in that: The mixing tank (2) is equipped with a second motor (20) on its side wall, and the output end of the second motor (20) is connected to the second rotating shaft (18).

5. The waste oil-based drilling mud treatment device according to claim 4, characterized in that: The mixing tank (2) is fixedly connected to the side wall of the material conveying pipe (21), and the side wall of the material conveying pipe (21) is fixedly connected to the side wall of the filter tank (3).

6. The waste oil-based drilling mud treatment device according to claim 5, characterized in that: The conveying pipe (21) is rotatably connected to an auger (22), and a motor (23) is provided on the side wall of the conveying pipe (21). The output end of the motor (23) is connected to the auger (22).

7. The waste oil-based drilling mud treatment device according to claim 1, characterized in that: The vibration assembly includes a rotating shaft (11), the side wall of which is rotatably connected to the inside of the filter barrel (3), and a gear (12) is fixedly connected to the side wall of the rotating shaft (11), and a chain (13) is rotatably connected between the gears (12).

8. The waste oil-based drilling mud treatment device according to claim 7, characterized in that: The fixed frame (10) is provided with a motor (14) on its side wall. The output end of the motor (14) is connected to the rotating shaft (11). An eccentric wheel (15) is fixedly connected to the side wall of the rotating shaft (11). The side wall of the eccentric wheel (15) is rotatably connected to the side wall of the filter frame (7).

Images