Drilling fluid solid-liquid separation treatment device

By using a combination design of a motor-driven spiral conveyor and a cylinder-driven screen box to shake in the drilling fluid solid-liquid separation device, the problem of poor separation effect of traditional devices is solved, and efficient solid-liquid separation of drilling fluid is achieved.

CN223774508UActive Publication Date: 2026-01-09DONGYING ANQIAN PETROLEUM EQUIP CO LTD
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Patent Information

Application Number
CN202423163206.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-01-09
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Traditional drilling fluid solid-liquid separation devices are limited in method and have poor separation effect, failing to meet people's needs for solid-liquid separation in drilling fluids.

Method used

A drilling fluid solid-liquid separation treatment device is adopted, including components such as a separation box, a feed box, a motor, a cylinder, a screw conveyor, a screen box and a screen. The motor drives the screw conveyor to transport solid impurities, and the cylinder drives the screen box to reciprocate to accelerate liquid filtration.

Benefits of technology

It achieves efficient solid-liquid separation of drilling fluid, effectively transporting solid impurities to the collection box, and accelerating liquid filtration through screens and filters, thereby improving the separation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a solid-liquid separation treatment device for drilling fluid, and relates to the technical field of solid-liquid separation of the drilling fluid. The drilling fluid solid-liquid separation treatment device comprises a separation box, the top of the separation box is provided with a feeding box and a motor, the inner wall of the separation box is provided with an air cylinder, the inner wall of the separation box is provided with a separation cavity and a liquid accumulation box, the inner wall of the separation cavity is provided with a spiral conveying rod, and the spiral conveying rod is connected with the motor. The output end of the motor is connected with the spiral conveying rod, the inner wall of the liquid accumulation box is connected with a screen box in a sliding mode, and the output end of the air cylinder is connected with one side of the screen box. And meanwhile, the air cylinder is started to pull the screen box to shake in a reciprocating mode, and liquid filtering is accelerated.
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Description

Technical Field

[0001] This utility model relates to the field of drilling fluid solid-liquid separation technology, specifically to a drilling fluid solid-liquid separation and treatment device. Background Technology

[0002] Drilling fluid is the lifeblood of drilling, also known as borehole flushing fluid. Drilling fluids can be classified according to their composition into water, mud, clay-free flushing fluid, emulsion, foam, and compressed air. Water is the earliest drilling fluid used. It requires no treatment, is easy to use, and is suitable for areas with intact rock formations and abundant water sources. Meanwhile, mud is a widely used drilling fluid, mainly suitable for unstable rock formations with loose, fractured, easily collapsing, or water-swelling and spalling characteristics. Therefore, solid-liquid separation devices are often required when recycling drilling fluids.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: traditional solid-liquid separation devices have a single method and poor separation effect when performing solid-liquid separation on drilling fluid, which cannot meet people's needs for solid-liquid separation in drilling fluid. Therefore, we propose a drilling fluid solid-liquid separation treatment device to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a drilling fluid solid-liquid separation treatment device, which solves the problem that traditional drilling fluid solid-liquid separation devices have a single method, poor separation effect, and cannot meet people's needs for solid-liquid separation in drilling fluid.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling fluid solid-liquid separation treatment device, comprising a separation box, a feed box and a motor respectively installed on the top of the separation box, a cylinder installed on the inner wall of the separation box, and a separation chamber and a liquid collection tank respectively provided on the inner wall of the separation box. A spiral conveying rod is installed on the inner wall of the separation chamber, and the output end of the motor is connected to the spiral conveying rod. A screen box is slidably connected to the inner wall of the liquid collection tank, and the output end of the cylinder is connected to one side of the screen box. A discharge hopper and a feed hopper are respectively provided on the left and right sides of the separation chamber. A receiving box is provided on one side of the separation box and at the lower end of the discharge hopper. A screen is installed at the junction of the separation chamber and the liquid collection tank, and a discharge valve is installed on the outer side of the liquid collection tank.

[0006] Preferably, a guide plate is installed at the bottom of the screen and on the inner wall of the liquid collection tank, and the other end of the guide plate is located at the top of the screen box.

[0007] Preferably, the bottom of the feed box is inclined, and the inner side of the feed box is connected to the feed hopper.

[0008] Preferably, support blocks are installed on both the front and rear sides of the inner wall of the liquid collection tank, and grooves are formed on the inner walls of both support blocks. At the same time, protrusions are fixedly installed on both the front and rear sides of the sieve box, and the two protrusions are slidably connected to the inner walls of the two grooves.

[0009] Preferably, a spring telescopic rod is fixedly installed on one side of the inner wall of each of the two grooves, and the other end of the two spring telescopic rods is fixedly connected to one side of each of the two protrusions.

[0010] Preferably, one side of the sieve box is fixedly connected to the output end of the cylinder, and a connecting rod is hinged to the other side of the sieve box. The other side of the connecting rod is hinged to the inner wall of the liquid collection tank, and a filter screen is installed on the inner wall of the sieve box.

[0011] Preferably, a door is installed on the front of the separation box and on the inner wall of the liquid collection box.

[0012] Beneficial effects

[0013] This invention provides a drilling fluid solid-liquid separation and treatment device. Compared with the prior art, it has the following advantages:

[0014] This drilling fluid solid-liquid separation treatment device uses a motor to drive a spiral conveyor to rotate upwards, transporting the intercepted and filtered solid impurities to a discharge hopper and into a collection box. The liquid then falls through a screen into a screen box, thus separating the drilling fluid from the solid. At the same time, a cylinder is activated to pull the screen box back and forth, accelerating the filtration of the liquid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0017] Figure 3 This is a top view schematic diagram of the sieve box structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the screen box connection structure of this utility model.

[0019] In the diagram: 1. Separation box; 11. Discharge hopper; 12. Feed hopper; 13. Separation chamber; 14. Liquid collection tank; 15. Guide plate; 16. Screen; 17. Discharge valve; 2. Box door; 3. Feed box; 4. Motor; 5. Storage box; 6. Screw conveyor rod; 7. Cylinder; 8. Screen box; 81. Connecting rod; 82. Filter screen; 83. Protrusion; 9. Support block; 91. Groove; 10. Spring telescopic rod. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a drilling fluid solid-liquid separation treatment device, including a separation box 1, a feed box 3 and a motor 4 respectively installed on the top of the separation box 1, a cylinder 7 installed on the inner wall of the separation box 1, and a separation chamber 13 and a liquid collection tank 14 respectively provided on the inner wall of the separation box 1. A spiral conveying rod 6 is installed on the inner wall of the separation chamber 13, and the output end of the motor 4 is connected to the spiral conveying rod 6. A screen box 8 is slidably connected to the inner wall of the liquid collection tank 14, and the output end of the cylinder 7 is connected to one side of the screen box 8. A discharge hopper 11 and a feed hopper 12 are respectively opened on the left and right sides of the separation chamber 13. A collection box 5 is provided on one side of the separation box 1 and at the lower end of the discharge hopper 11. A screen 16 is installed at the junction of the separation chamber 13 and the liquid collection tank 14, and a discharge valve 17 is installed on the outer side of the liquid collection tank 14.

[0022] The separation chamber 13 and the liquid collection tank 14, which are opened in the inner wall of the separation box 1, allow for the installation of the discharge hopper 11, the feed hopper 12, the screw conveyor 6, and the screen box 8. The top of the separation box 1 is equipped with the feed box 3 and the motor 4. A collection box 5 is located on one side of the separation box 1, below the discharge hopper 11. The output end of the motor 4 is connected to the screw conveyor 6. A screen 16 is installed at the junction of the separation chamber 13 and the liquid collection tank 14. Thus, when workers add drilling fluid to the feed box 3, it is slowly released under the influence of gravity. Once inside the separation chamber 13, the worker starts the motor 4 and cylinder 7. The motor 4 drives the spiral conveyor 6 to rotate, which in turn drives the spiral conveyor 6 upward, conveying the intercepted and filtered solid impurities to the discharge hopper 11 and into the collection box 5. At the same time, the liquid falls through the screen 16 into the screen box 8. Since the screen box 8 is slidably connected to the inner wall of the liquid collection tank 14, and the output end of the cylinder 7 is connected to one side of the screen box 8, the cylinder 7 is activated to pull the screen box 8 to shake back and forth, which can accelerate the filtration of the liquid and thus enable the solid-liquid separation operation of the drilling fluid.

[0023] See Figure 1 , Figure 2 and Figure 3Support blocks 9 are installed on both the front and rear sides of the inner wall of the liquid collection tank 14, and grooves 91 are opened on the inner walls of the two support blocks 9. At the same time, protrusions 83 are fixedly installed on both the front and rear sides of the sieve box 8. The two protrusions 83 are slidably connected to the inner walls of the two grooves 91. Spring telescopic rods 10 are fixedly installed on one side of the inner wall of the two grooves 91. The other end of the two spring telescopic rods 10 is fixedly connected to one side of the two protrusions 83 respectively. One side of the sieve box 8 is fixedly connected to the output end of the cylinder 7. A connecting rod 81 is hinged to the other side of the sieve box 8. The other side of the connecting rod 81 is hinged to the inner wall of the liquid collection tank 14. At the same time, a filter screen 82 is installed on the inner wall of the sieve box 8.

[0024] Two support blocks 9 can be installed through the liquid collection tank 14. Since the inner walls of the two support blocks 9 are provided with grooves 91, one side of the screen box 8 is fixedly connected to the output end of the cylinder 7. The two protrusions 83 are slidably connected to the inner walls of the two grooves 91. Spring telescopic rods 10 are fixedly installed on one side of the inner walls of the two grooves 91. The other ends of the two spring telescopic rods 10 are fixedly connected to one side of the two protrusions 83 respectively. Thus, the cylinder 7 is activated, driving the screen box 8 and the two protrusions 83 to slide back and forth along the two grooves 91, compressing the two spring telescopic rods 10. Since the other side of the screen box 8 is hinged to the connecting rod 81, and the other side of the connecting rod 81 is hinged to the inner wall of the liquid collection tank 14, when the screen box 8 slides, the two sides of the connecting rod 81 rotate along the hinge point between the screen box 8 and the liquid collection tank 14, which can limit the sliding range of the screen box 8. At the same time, since the inner wall of the screen box 8 is equipped with a filter screen 82, when the screen box 8 drives the filter screen 82 to slide, it can accelerate the filtration of liquid by the filter screen 82.

[0025] See Figure 2 A guide plate 15 is installed at the bottom of the screen 16 and on the inner wall of the liquid collection tank 14, with the other end of the guide plate 15 located at the top of the screen box 8.

[0026] The guide plate 15 can be installed through the liquid collection tank 14. Since one end of the guide plate 15 is located at the bottom of the screen 16 and the other end of the guide plate 15 is located at the top of the screen box 8, the spiral conveyor rod 6 rotates upward, and the liquid will seep into the liquid collection tank 14 through the screen 16. At this time, the liquid can fall into the screen box 8 through the guide plate 15.

[0027] See Figure 1 , Figure 2 The bottom of the feed box 3 is inclined, and the inner side of the feed box 3 is connected to the feed hopper 12. The front of the separation box 1 and the inner wall of the liquid collection box 14 are equipped with a box door 2.

[0028] The door 2 is installed on the inner wall of the liquid collection tank 14. After the screen box 8 filters the liquid, the worker can open the door 2 to clean and replace the filter screen 82. Since the bottom of the feed box 3 is inclined, after the worker puts the drilling fluid into the feed box 3, the drilling fluid will be slowly fed into the separation chamber 13 along the feed box 3 under the action of gravity.

[0029] During operation, the worker adds drilling fluid to the feed box 3, which is slowly fed into the separation chamber 13 under the influence of gravity. At this time, the worker turns on the motor 4 and the cylinder 7. The motor 4 drives the spiral conveyor 6 to rotate, which drives the spiral conveyor 6 upward to transport the intercepted and filtered solid impurities to the discharge hopper 11 and discharge them into the collection box 5. At the same time, the liquid falls into the screen box 8 through the screen 16, which can perform solid-liquid separation of drilling fluid. Then, the cylinder 7 is started to pull the screen box 8 to shake back and forth, which accelerates the filtration of liquid and can perform solid-liquid separation of drilling fluid.

[0030] By activating cylinder 7, the screen box 8 and the two protrusions 83 are driven to slide back and forth along the two grooves 91, compressing the two spring telescopic rods 10. Since the other side of the screen box 8 is hinged to the connecting rod 81, and the other side of the connecting rod 81 is hinged to the inner wall of the liquid collection tank 14, when the screen box 8 slides, the two sides of the connecting rod 81 rotate along the hinge point between the screen box 8 and the liquid collection tank 14, which can limit the sliding range of the screen box 8. At the same time, since the inner wall of the screen box 8 is equipped with a filter screen 82, when the screen box 8 drives the filter screen 82 to slide, it can accelerate the filtration of liquid by the filter screen 82.

[0031] In summary, the device starts the motor 4 to drive the screw conveyor 6 to rotate upward, which can transport the intercepted and filtered solid impurities to the discharge hopper 11 and discharge them into the collection box 5, and make the liquid fall into the screen box 8 through the screen 16, thereby enabling the solid-liquid separation of drilling fluid. At the same time, the cylinder 7 is started to pull the screen box 8 to shake back and forth, accelerating the filtration of liquid.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A drilling fluid solid-liquid separation and treatment device, comprising a separation tank (1), characterized in that: The top of the separation box (1) is equipped with a feed box (3) and a motor (4). The inner wall of the separation box (1) is equipped with a cylinder (7). The inner wall of the separation box (1) is provided with a separation chamber (13) and a liquid collection tank (14). The inner wall of the separation chamber (13) is equipped with a spiral conveying rod (6). The output end of the motor (4) is connected to the spiral conveying rod (6). The inner wall of the liquid collection tank (14) is slidably connected with a screen box (8). The output end of the cylinder (7) is connected to one side of the screen box (8). The separation chamber (13) has a discharge hopper (11) and a feed hopper (12) on its left and right sides respectively. A storage box (5) is provided on one side of the separation box (1) and at the lower end of the discharge hopper (11). A screen (16) is installed at the junction of the separation chamber (13) and the liquid collection box (14). A discharge valve (17) is installed on the outside of the liquid collection box (14).

2. The drilling fluid solid-liquid separation and treatment device according to claim 1, characterized in that: A guide plate (15) is installed at the bottom of the screen (16) and on the inner wall of the liquid collection tank (14), with the other end of the guide plate (15) located at the top of the screen box (8).

3. The drilling fluid solid-liquid separation and treatment device according to claim 1, characterized in that: The bottom of the feed box (3) is inclined, and the inner side of the feed box (3) is connected to the feed hopper (12).

4. The drilling fluid solid-liquid separation and treatment device according to claim 1, characterized in that: Support blocks (9) are installed on both the front and rear sides of the inner wall of the liquid collection tank (14), and grooves (91) are opened on the inner walls of the two support blocks (9). Meanwhile, protrusions (83) are fixedly installed on both the front and rear sides of the sieve box (8), and the two protrusions (83) are slidably connected to the inner walls of the two grooves (91).

5. The drilling fluid solid-liquid separation and treatment device according to claim 4, characterized in that: A spring telescopic rod (10) is fixedly installed on one side of the inner wall of each of the two grooves (91), and the other end of the two spring telescopic rods (10) is fixedly connected to one side of each of the two protrusions (83).

6. The drilling fluid solid-liquid separation and treatment device according to claim 1, characterized in that: One side of the sieve box (8) is fixedly connected to the output end of the cylinder (7), and the other side of the sieve box (8) is hinged to a connecting rod (81). The other side of the connecting rod (81) is hinged to the inner wall of the liquid collection tank (14), and a filter screen (82) is installed on the inner wall of the sieve box (8).