Environment-friendly drilling fluid solid control equipment

Abstract

The utility model relates to a drilling fluid solid control system, in particular to environment-friendly drilling fluid solid control equipment. The environment-friendly drilling fluid solid control equipment comprises a bottom frame, supporting frames, a pressurizing pipe, a liquid adding pipe, a filter, a liquid receiving and screening frame and a movable screening mechanism, the supporting frames are fixedly connected to the four corners of the upper surface of the bottom frame through supporting columns, and the pressurizing pipe is fixedly connected to the upper surfaces of the supporting frames through fixing plates; according to the movable screening mechanism, through different driving designs of the threaded rod and the sliding rod, the screen can shake in a controllable mode, the effect of stripping blocking particles is achieved, the solid phase rejection rate is increased, the waste solid phase generation amount is reduced in combination with a flow dividing structure of the liquid dividing plate, and the waste solid phase waste screening device is suitable for large-scale popularization and application. The screen angle adjusting function reduces the manual cleaning frequency, use of chemical cleaning agents is avoided, the rubber pad at the bottom of the bottom frame absorbs vibration energy, the equipment operation noise is reduced, ground conduction vibration is restrained, and the noise value of an operation area is lower.

Description

Technical Field

[0001] This utility model relates to drilling fluid solids control equipment, and more particularly to an environmentally friendly drilling fluid solids control equipment. Background Technology

[0002] Currently, drilling fluid solids control systems mainly employ a multi-stage purification equipment operation mode, including core components such as vibrating screens, desanders, desilters, and centrifuges. Large rock cuttings are initially separated through screens; hydrocyclones (such as desanders and desilters) utilize centrifugal sedimentation to process medium and fine particles. The system typically uses a fixed configuration in series or parallel, relying on progressive screening and separation to achieve drilling fluid purification.

[0003] However, the series connection of multiple equipment stages results in a lengthy processing flow. The functions of the sand separator, mud separator and centrifuge partially overlap, causing energy waste. Furthermore, traditional linear screens are prone to "screening slurry" or slurry leakage, leading to poor separation efficiency.

[0004] Therefore, it is necessary to provide a new environmentally friendly drilling fluid solids control device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an environmentally friendly drilling fluid solids control device.

[0006] The environmentally friendly drilling fluid solids control equipment provided by this utility model includes: a base frame, a support frame, a pressurizing pipe, a liquid filling pipe, a filter, a liquid receiving screening frame, and a movable screening mechanism. The four corners of the upper surface of the base frame are fixedly connected to the support frame via support columns. The upper surface of the support frame is fixedly connected to the pressurizing pipe via a fixing plate. The top of the fixing plate is fixedly connected to the liquid filling pipe, which is connected to two L-shaped connecting pipes. The bottom end of each L-shaped connecting pipe is fixedly connected to the filter. A liquid receiving screening frame is located below the filter and is connected to the base frame via a shaking mechanism. The upper surface of the liquid receiving screening frame is equipped with a movable screening mechanism, which includes a fixed frame and a threaded connection. The filter comprises a rod, a slide rod, a slider, a lifting rod, a drive motor, and a screen. Two symmetrically distributed fixed frames are fixedly connected to both sides of the upper surface of the liquid receiving and screening frame. A slide rod is fixedly connected between the upper and lower inner walls of the left fixed frame, and a slider is slidably connected to the slide rod. A threaded rod is rotatably connected between the upper and lower inner walls of the right fixed frame via a bearing. Another slider is threadedly connected to the threaded rod, and the top of the threaded rod penetrates the inner wall of the fixed frame and is fixedly connected to the output end of the drive motor via a coupling. The drive motor is fixedly connected to the upper surface of the right fixed frame. A lifting rod is fixedly connected between the two sliders on the same side, and a screen is fixedly connected between the two lifting rods. The screen is located directly below the filter.

[0007] Preferably, the bottom end of the filter is fixedly connected to an outlet pipe, and a valve is installed on the outlet pipe.

[0008] Preferably, the shaking mechanism includes a lower connecting plate, an upper connecting plate, and a spring. The lower connecting plates are fixedly connected to the inner walls of both sides of the bottom frame, and two symmetrically distributed upper connecting plates are fixedly connected to both sides of the liquid receiving sieve frame. A spring connects the upper connecting plate to the corresponding lower connecting plate.

[0009] Preferably, a mounting plate is fixedly connected to the upper surface of the liquid receiving sieve frame, and a vibration motor is fixedly mounted on the mounting plate.

[0010] Preferably, a liquid separating plate is fixedly connected to the center of the lower inner wall of the liquid receiving and screening frame.

[0011] Preferably, rubber pads are fixedly connected to the four corners of the lower surface of the bottom frame.

[0012] Preferably, the pressurization pipe is connected to the filter via a pipeline.

[0013] Preferably, the slider contacts and slides with the inner walls of both sides of the fixed frame.

[0014] Compared with related technologies, the environmentally friendly drilling fluid solids control equipment provided by this utility model has the following beneficial effects:

[0015] 1. The movable screening mechanism in this utility model uses different drive designs of threaded rod and slide rod to make the screen shake controllably, thereby achieving the effect of removing clogging particles. Combined with the diversion structure of the liquid separating plate, it improves the solid phase retention rate and reduces the amount of waste solid phase generated. The screen angle adjustment function reduces the frequency of manual cleaning and avoids the use of chemical cleaning agents. The rubber pad at the bottom of the frame absorbs vibration energy, reduces equipment operating noise and suppresses ground-transmitted vibration, resulting in lower noise levels in the working area.

[0016] 2. This utility model is equipped with a shaking mechanism. The liquid receiving and screening frame is formed by a spring connecting the lower connecting plate and the upper connecting plate to form an elastic suspension structure. In conjunction with the vibration motor on the mounting plate, it generates high-frequency shaking, which causes the solid-liquid mixture initially separated in the filter to be shaken and screened again in the liquid receiving and screening frame, thus realizing the efficient synergy of graded filtration and dynamic screening. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the environmentally friendly drilling fluid solids control equipment provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the movable screening mechanism in this utility model.

[0019] The following are the labels in the diagram: 1. Base frame; 2. Spring; 3. Lower connecting plate; 4. Liquid outlet pipe; 5. Upper connecting plate; 6. Threaded rod; 7. Mounting plate; 8. Separating plate; 9. Vibrating motor; 10. Liquid receiving and screening frame; 11. Support column; 12. Support frame; 13. Fixing plate; 14. Pressurizing pipe; 15. Liquid inlet pipe; 16. Connecting pipe; 17. Filter; 18. Fixing frame; 19. Sliding block; 20. Lifting rod; 21. Sliding rod; 22. Drive motor; 23. Screen. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] Please see Figures 1 to 2 The present invention provides an environmentally friendly drilling fluid solids control device, which includes: a bottom frame 1, a support frame 12, a pressure pipe 14, a liquid filling pipe 15, a filter 17, a liquid receiving screening frame 10, and a movable screening mechanism.

[0023] The upper surface of the base frame 1 has four corners fixedly connected to support frames 12 via support columns 11. The upper surface of the support frame 12 has a pressure pipe 14 fixedly connected via a fixing plate 13. The pressure pipe 14 is connected to the filter 17 via a pipe. The top of the fixing plate 13 has a liquid inlet pipe 15 fixedly connected to it. Two L-shaped connecting pipes 16 are fixedly connected to the liquid inlet pipe 15. The bottom end of the L-shaped connecting pipe 16 is fixedly connected to the filter 17. A liquid receiving sieve frame 10 is provided below the filter 17. The liquid receiving sieve frame 10 is connected to the base frame 1 via a shaking mechanism. The shaking mechanism includes a lower connecting plate 3, an upper connecting plate 5, and a spring 2. The inner walls of both sides of the base frame 1 are fixedly connected to the lower connecting plate 3. The liquid receiving sieve frame 10 has two symmetrically distributed upper connecting plates 5 fixedly connected to both sides. A spring 2 is connected between the upper connecting plate 5 and the corresponding lower connecting plate 3. The upper surface of the liquid receiving sieve frame 10 has a mounting plate 7 fixedly connected to it. A vibration motor 9 is fixedly mounted on the mounting plate 7.

[0024] It should be noted that the rigid support frame formed by the bottom frame 1 and the support column 11 ensures that the support frame 12 stably supports the pressurization pipe 14. After the liquid injection pipe 15 is fixed by the fixing plate 13, drilling fluid is evenly injected into the filter 17 through the double L-shaped connecting pipe 16 to form a primary filtration unit. The liquid receiving screening frame 10 is connected by the spring 2 to the lower connecting plate 3 and the upper connecting plate 5 to form an elastic suspension structure. With the cooperation of the vibration motor 9 on the mounting plate 7, high-frequency vibration is generated, which causes the solid-liquid mixture initially separated in the filter 17 to be oscillated and screened in the liquid receiving screening frame 10 for a second time, realizing the efficient synergy of graded filtration and dynamic screening.

[0025] The upper surface of the liquid receiving sieve frame 10 is provided with a movable sieve mechanism, which includes a fixed frame 18, a threaded rod 6, a sliding rod 21, a slider 19, a lifting rod 20, a drive motor 22, and a screen 23. Two symmetrically distributed fixed frames 18 are fixedly connected to both sides of the upper surface of the liquid receiving sieve frame 10. A sliding rod 21 is fixedly connected between the upper and lower inner walls of the left fixed frame 18, and a slider 19 is slidably connected to the sliding rod 21. A threaded rod 6 is rotatably connected between the upper and lower inner walls of the right fixed frame 18 via a bearing, and another sliding rod 19 is threadedly connected to the threaded rod 6. Block 19, the slider 19 contacts and slides with the inner walls of both sides of the fixed frame 18, and the top end of the threaded rod 6 penetrates the inner wall of the fixed frame 18 and is fixedly connected to the output end of the drive motor 22 through a coupling. The drive motor 22 is fixedly connected to the upper surface of the fixed frame 18 on the right side. A lifting rod 20 is fixedly connected between the two sliders 19 on the same side. A screen 23 is fixedly connected between the two lifting rods 20. The screen 23 is located directly below the filter 17. The bottom end of the filter 17 is fixedly connected to the liquid outlet pipe 4, and a valve is installed on the liquid outlet pipe 4.

[0026] It should be noted that the movable screening mechanism constructs a double-track adjustment structure through symmetrically distributed fixed frames 18 on the liquid receiving screening frame 10. The sliding rod 21 and slider 19 within the left fixed frame 18 form a sliding pair, while the threaded rod 6 within the right fixed frame 18 is driven to rotate by the drive motor 22, which in turn moves the other slider 19. When the drive motors 22 on both sides rotate in both directions, the threaded rod 6 pushes the sliders 19 on both sides to move up and down, causing the lifting rods 20 on both sides to rise and fall synchronously, forcing the screen 23 to tilt or reciprocate horizontally. The shaking of the screen 23 directly acts on the solid-liquid mixture flowing out below the filter 17, breaking it down through mechanical vibration. The accumulation of bad solid particles on the surface of screen 23, and the valve of the liquid outlet pipe 4 can adjust the flow rate of the primary filtrate to prevent excessive slurry from rushing into screen 23 and causing instantaneous overload; the sliding contact between slider 19 and the inner wall of fixed frame 18 restricts the lateral displacement of screen 23, and the tilt angle of screen 23 changes in real time with the height difference of lifting rod 20, forming a multi-directional swing force, which can peel off particles stuck in the screen holes, and together with the vibration of liquid receiving screening frame 10, it produces a double anti-clogging effect; the forward and reverse rotation cycle of drive motor 22 is adjustable, and by changing the shaking frequency of screen 23, it can adapt to drilling fluids with different solid content to achieve continuous screening and anti-clogging effect.

[0027] The liquid receiving and screening frame 10 has a liquid distribution plate 8 fixedly connected to the center of its lower inner wall, thereby achieving the effect of dispersing the fluid and avoiding the fluid from concentrating and impacting the local area of ​​the screen, which would cause the screen holes to become blocked. Rubber pads are fixedly connected to the four corners of the lower surface of the bottom frame 1. While absorbing the vibration energy of the equipment, the rubber pads increase the friction of the contact surface to prevent the overall structure from shifting due to high-frequency vibration and reduce noise pollution caused by vibration and collision.

[0028] In summary, this utility model provides an environmentally friendly drilling fluid solids control device. The fluid supply pipe 15 delivers drilling fluid to the filter 17 through the L-shaped connecting pipe 16. Combined with the sealed connection of the pressure pipe 14, it effectively prevents mud splashing and pollution of the working environment. The valve on the outlet pipe 4 controls the flow rate, reducing the risk of overflow. The graded treatment process works in concert with the primary filtration of the filter 17 and the vibrating screening of the receiving screen frame 10. The elastic suspension structure composed of the spring 2 and the vibrating motor 9 reduces energy consumption while improving the efficiency of secondary screening, thus reducing power consumption compared to traditional multi-stage series equipment.

[0029] The active screening mechanism uses different drive designs of the threaded rod 6 and the slide rod 21 to make the screen 23 vibrate in a controllable manner, thereby achieving the effect of removing clogging particles. Combined with the diversion structure of the liquid separating plate 8, it improves the solid phase retention rate and reduces the amount of waste solid phase generated. The screen 23 angle adjustment function reduces the frequency of manual cleaning and avoids the use of chemical cleaning agents. The rubber pad at the bottom of the base frame 1 absorbs vibration energy, reduces equipment operating noise and suppresses ground-transmitted vibration, resulting in lower noise levels in the working area.

[0030] The entire system achieves resource conservation and environmental friendliness in the drilling fluid treatment process through efficient solid phase recovery, energy consumption optimization, and pollution control.

[0031] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An environmentally friendly drilling fluid solids control device, characterized in that, include: Bottom frame (1); Support frame (12), the four corners of the upper surface of the bottom frame (1) are fixedly connected to the support frame (12) by support columns (11); A pressure tube (14) is fixedly connected to the upper surface of the support frame (12) via a fixing plate (13); A liquid addition tube (15) is fixedly connected to the top end of the fixing plate (13); The filter (17) is fixedly connected to two L-shaped connecting pipes (16) on the liquid adding pipe (15), and the bottom end of the L-shaped connecting pipe (16) is fixedly connected to the filter (17). Liquid receiving sieve frame (10) is provided below the filter (17), and the liquid receiving sieve frame (10) is connected to the bottom frame (1) through a shaking mechanism; The liquid receiving screening frame (10) has a movable screening mechanism on its upper surface. The movable screening mechanism includes a fixed frame (18), a threaded rod (6), a sliding rod (21), a slider (19), a lifting rod (20), a drive motor (22), and a screen (23). Two symmetrically distributed fixed frames (18) are fixedly connected to both sides of the upper surface of the liquid receiving screening frame (10). A sliding rod (21) is fixedly connected between the upper and lower inner walls of the left fixed frame (18), and a slider (19) is slidably connected to the sliding rod (21). The right fixed frame (18) has a sliding rod (21) between its upper and lower inner walls. A threaded rod (6) is rotatably connected between the upper and lower inner walls via a bearing. Another slider (19) is threaded onto the threaded rod (6). The top end of the threaded rod (6) passes through the inner wall of the fixed frame (18) and is fixedly connected to the output end of the drive motor (22) via a coupling. The drive motor (22) is fixedly connected to the upper surface of the fixed frame (18) on the right side. A lifting rod (20) is fixedly connected between the two sliders (19) on the same side. A screen (23) is fixedly connected between the two lifting rods (20). The screen (23) is located directly below the filter (17).

2. The environmentally friendly drilling fluid solids control equipment according to claim 1, characterized in that, The bottom end of the filter (17) is fixedly connected to the liquid outlet pipe (4), and a valve is installed on the liquid outlet pipe (4).

3. The environmentally friendly drilling fluid solids control equipment according to claim 1, characterized in that, The shaking mechanism includes a lower connecting plate (3), an upper connecting plate (5) and a spring (2). The lower connecting plate (3) is fixedly connected to the inner walls of both sides of the bottom frame (1). Two symmetrically distributed upper connecting plates (5) are fixedly connected to both sides of the liquid receiving sieve frame (10). A spring (2) connects the upper connecting plate (5) to the corresponding lower connecting plate (3).

4. The environmentally friendly drilling fluid solids control equipment according to claim 3, characterized in that, The upper surface of the liquid receiving sieve frame (10) is fixedly connected to an installation plate (7), and a vibration motor (9) is fixedly installed on the installation plate (7).

5. The environmentally friendly drilling fluid solids control equipment according to claim 1, characterized in that, A liquid separating plate (8) is fixedly connected to the center of the lower inner wall of the liquid receiving sieve frame (10).

6. The environmentally friendly drilling fluid solids control equipment according to claim 1, characterized in that, Rubber pads are fixedly connected to the four corners of the lower surface of the bottom frame (1).

7. The environmentally friendly drilling fluid solids control equipment according to claim 1, characterized in that, The pressurization pipe (14) is connected to the filter (17) via a pipe.

8. The environmentally friendly drilling fluid solids control equipment according to claim 1, characterized in that, The slider (19) contacts and slides with the inner walls on both sides of the fixed frame (18).

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