Old drilling fluid slurry recovery device

Abstract

The utility model relates to a drilling fluid old slurry recovery device which comprises a recovery box and control shells welded to the front side and the rear side of the recovery box, a suction assembly used for rapidly sucking drilling fluid is arranged in the recovery box, a recovery cavity and a transition cavity are formed in the recovery box, and the transition cavity is arranged at the bottom of the recovery cavity. A filtering hole set for filtering drilling fluid is formed between the recycling cavity and the transition cavity, a discharging hole groove is formed between the inner wall of the recycling cavity and the control shell, a limiting assembly for limiting the drilling fluid to flow out in one direction is arranged in the control shell, mounting grooves are formed in the two sides of the recycling box, and the suction assembly comprises control oil cylinders mounted in the mounting grooves. According to the drilling fluid recycling device, old slurry of drilling fluid can be rapidly sucked into the recycling box through the suction assembly, the drilling fluid can be filtered, the speed of the whole treatment process is high, and the recycling speed of the drilling fluid can be greatly increased.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, and in particular to a drilling fluid old slurry recovery device. Background Technology

[0002] Drilling fluid slurry is a general term for various circulating fluids used in the drilling process to meet the needs of drilling operations. 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, emulsions, foam, and compressed air, etc. Water and mud are the most commonly used drilling fluids. To ensure the normal use of drilling fluids, they generally need to be recycled.

[0003] A search revealed that Chinese Patent CN210422520U discloses a drilling fluid recovery device, comprising a recovery bucket, a mounting plate, a fixing plate, a filter screen, a receiving hopper, a funnel, and support legs. The recovery bucket is connected to a cover plate at its upper part and to support legs at its lower part. The funnel has a funnel side plate on its left side, which is connected to the recovery bucket. The funnel side plate is connected to the recovery bucket via multiple No. 3 bolts. The recovery bucket has multiple rods, and the funnel side plate has multiple rod holes. The rods are adapted to the rod holes and pass through them. The funnel has a trough, and a mud discharge pipe is located at the lower part of the funnel. The recovery bucket has a mud discharge pipe hole on its left side, which is adapted to the mud discharge pipe hole and passes through it. A valve is connected to the upper part of the mud discharge pipe.

[0004] In actual use, this patent has the following drawbacks:

[0005] In this patent, the recycling process is completed by filtering through a filter screen, which is slow and inefficient. Utility Model Content

[0006] In view of the technical problems of existing patents, which rely on filtration through a filter screen for recycling, resulting in slow recycling speed and low efficiency, this utility model provides a drilling fluid old slurry recycling device.

[0007] The technical solution adopted by this utility model is: a drilling fluid old slurry recovery device, including a recovery tank and a control shell welded to the front and rear sides of the recovery tank. The recovery tank is provided with an suction component for rapidly sucking in drilling fluid. The recovery tank is provided with a recovery chamber and a transition chamber. The transition chamber is located at the bottom of the recovery chamber. A filter hole group for filtering drilling fluid is provided between the recovery chamber and the transition chamber. A discharge slot is provided between the inner wall of the recovery chamber and the control shell. A limiting component for restricting the unidirectional outflow of drilling fluid is provided in the control shell.

[0008] Furthermore, the recycling bin has mounting slots on both sides, and the suction assembly includes a control cylinder installed in the mounting slot, a top plate located at the top of the recycling bin and installed at one end of the control cylinder, and a sealing plate that is locked in the recycling chamber and installed at the bottom of the top plate via a connecting rod.

[0009] Furthermore, a feed pipe and a slag discharge pipe are respectively installed on both sides of the bottom of the transition cavity. A one-way valve is installed on the feed pipe, and a control valve is installed on the slag discharge pipe.

[0010] Furthermore, the bottom surface of the transition cavity is a sloping structure, and the direction from the feed pipe to the slag discharge pipe is from high to low.

[0011] Furthermore, the bottom of the recycling bin is equipped with support legs that are longer than the feed pipe and the slag discharge pipe.

[0012] Furthermore, the limiting component includes a baffle and a limiting spring, wherein the baffle is installed inside the control housing via the limiting spring and one side is in close contact with the outside of the recycling bin.

[0013] Furthermore, a discharge pipe is installed at the bottom of the control housing.

[0014] The beneficial effects of this utility model are: compared with the prior art, in this utility model,

[0015] This invention uses an attraction component to quickly pump old drilling fluid into a recovery tank and filter the drilling fluid. The entire process is fast and can greatly improve the speed of drilling fluid recovery. Attached Figure Description

[0016] Figure 1 This is a front perspective view of the present invention;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the recycling bin in this utility model;

[0018] Figure 3 This is a schematic diagram of the attraction component in this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the present invention;

[0020] The following are marked in the diagram: 1. Recycling box; 2. Control housing; 3. Suction assembly; 301. Control cylinder; 302. Top plate; 303. Sealing plate; 4. Recycling chamber; 5. Transition chamber; 6. Filter hole assembly; 7. Discharge hole groove; 8. Limiting assembly; 801. Baffle; 802. Limiting spring; 9. Feed pipe; 10. Slag discharge pipe; 11. Check valve; 12. Control valve; 13. Support leg; 14. Discharge pipe. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0024] In order to solve the problems existing in the background technology, this application proposes the following technical solution: a drilling fluid old slurry recovery device.

[0025] The specific technical solution includes a recovery tank 1 and a control shell 2 welded to the front and rear sides of the recovery tank 1. The recovery tank 1 is equipped with an suction component 3 for rapidly sucking up drilling fluid. The recovery tank 1 has a recovery chamber 4 and a transition chamber 5. The transition chamber 5 is located at the bottom of the recovery chamber 4. A filter hole group 6 for filtering drilling fluid is provided between the recovery chamber 4 and the transition chamber 5. The filter hole group 6 can filter out debris and other residues in the drilling fluid and retain them in the transition chamber 5. A discharge slot 7 is provided between the inner wall of the recovery chamber 4 and the control shell 2. A limiting component 8 for restricting the one-way flow of drilling fluid is provided in the control shell 2.

[0026] Reference Figure 2 and Figure 3 As shown, the recovery box 1 has installation slots on both sides. The suction assembly 3 includes a control cylinder 301 installed in the installation slot, a top plate 302 located at the top of the recovery box 1 and installed at one end of the control cylinder 301, and a sealing plate 303 that is stuck in the recovery chamber 4 and installed at the bottom of the top plate 302 through a connecting rod. When the drilling fluid is sucked in, the control cylinder 301 can push the top plate 302 and the sealing plate 303 upward, and a negative pressure is generated between the sealing plate 303 and the recovery chamber 4 to attract the drilling fluid in.

[0027] Reference Figure 2As shown, a feed pipe 9 and a slag discharge pipe 10 are installed on the bottom two sides of the transition chamber 5, respectively. A one-way valve 11 is installed on the feed pipe 9, and a control valve 12 is installed on the slag discharge pipe 10. The one-way valve 11 on the feed pipe 9 can ensure that the drilling fluid can only enter the transition chamber 5 and cannot be discharged from the feed pipe 9.

[0028] Reference Figure 3 As shown, the bottom surface of the transition chamber 5 is a sloping structure, and the direction from the feed pipe 9 to the slag discharge pipe 10 is from high to low. The sloping structure can ensure that the filtered residue can move towards the vicinity of the slag discharge pipe 10.

[0029] Reference Figure 1 As shown, the bottom of the recycling bin 1 is equipped with a support leg 13 that is longer than the feed pipe 9 and the slag discharge pipe 10, thus providing enough space to connect the pipes.

[0030] Reference Figure 4 As shown, the limiting component 8 includes a baffle 801 and a limiting spring 802. The baffle 801 is installed inside the control housing 2 by the limiting spring 802 and one side is in close contact with the outside of the recovery tank 1. The drilling fluid discharged from the recovery chamber 4 can push the baffle 801 and squeeze the limiting spring 802. A discharge pipe 14 is installed at the bottom of the control housing 2, and finally the drilling fluid can be discharged from the control housing 2.

[0031] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0032] In use, the drilling fluid slurry pipeline is connected to the feed pipe 9, and the control cylinder 301 is connected to an external power supply. The control cylinder 301 can push the top plate 302 and the sealing plate 303 upward. When the sealing plate 303 moves upward, the negative pressure generated between the sealing plate 303 and the recovery chamber 4 can draw the drilling fluid in the feed pipe 9 into the transition chamber 5. Then the drilling fluid can pass through the filter hole group 6 and enter the recovery chamber 4. Impurities in the drilling fluid can be retained in the transition chamber 5. Then the control cylinder 301 is pulled back, and the sealing plate 303 pushes the mud downward. Part of the drilling fluid moves back into the transition chamber 5. The remaining drilling fluid can enter the discharge slot 7 at the edge under pressure. Then the drilling fluid can push the baffle 801 to squeeze the limit spring 802 and enter the control shell 2. Finally, the recovered drilling fluid can be discharged from the discharge pipe 14. After that, the control cylinder 301 can perform a drilling fluid recovery process once each round trip, which can greatly accelerate the drilling fluid recovery speed.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A drilling fluid old slurry recovery device comprising a recovery tank (1) and a control shell (2) welded to the front and rear sides of the recovery tank (1), characterized in that, The recycling tank (1) is provided with a suction assembly (3) for quickly sucking drilling fluid, a recycling cavity (4) and a transition cavity (5) are formed in the recycling tank (1), the transition cavity (5) is arranged at the bottom of the recycling cavity (4), a filter hole group (6) for filtering drilling fluid is formed between the recycling cavity (4) and the transition cavity (5), a discharge hole groove (7) is formed between the inner wall of the recycling cavity (4) and the control shell (2), and the control shell (2) is provided with a limiting assembly (8) for limiting one-way outflow of drilling fluid.

2. The drilling fluid old slurry recovery device of claim 1, wherein, Both sides of the recycling tank (1) are provided with mounting grooves, the suction assembly (3) comprises a control oil cylinder (301) mounted in the mounting grooves, a top plate (302) arranged at the top of the recycling tank (1) and mounted at one end of the control oil cylinder (301), and a sealing plate (303) clamped in the recycling cavity (4) and mounted at the bottom of the top plate (302) through a connecting rod.

3. The drilling fluid old slurry recovery device of claim 1, wherein, The transition cavity (5) is provided with an inlet pipe (9) and a residue discharge pipe (10) on both sides of the bottom, a one-way valve (11) is mounted on the inlet pipe (9), and a control valve (12) is mounted on the residue discharge pipe (10).

4. The drilling fluid old slurry recovery device of claim 3, wherein, The bottom surface of the transition cavity (5) is a slope structure, and the direction from the inlet pipe (9) to the residue discharge pipe (10) is from high to low.

5. The drilling fluid old slurry recovery device of claim 3, wherein, The recycling tank (1) is provided with a support leg (13) longer than the inlet pipe (9) and the residue discharge pipe (10) at the bottom.

6. The drilling fluid old slurry recovery device of claim 1, wherein, The limiting assembly (8) comprises a baffle (801) and a limiting spring (802), the baffle (801) is mounted in the control shell (2) through the limiting spring (802) and tightly abuts the outside of the recycling tank (1) on one side.

7. The drilling fluid old slurry recovery device of claim 1, wherein, The control shell (2) is provided with a discharge pipe (14) at the bottom.

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