Slurry stirring and mixing device and using method thereof

Abstract

The invention relates to a slurry stirring and mixing device and a using method thereof, and the slurry stirring and mixing device comprises a mixing container, a slurry storage container for storing slurry, a glue solution storage container for storing a glue solution prepared from a treating agent, and a stirring mechanism arranged in the mixing container, and further comprises a slurry pump, the slurry pump is used for continuously and uniformly conveying the slurry in the slurry storage container into the mixing container; the piston mechanism is used for continuously and uniformly conveying the glue solution in the glue solution storage container into the mixing container; the water wheel mechanism comprises a water wheel shell arranged on the mud guide pipe and water wheel blades rotationally connected to the interior of the water wheel shell; the slurry and the glue solution are continuously and uniformly conveyed into the mixing container, the stirring mechanism stirs and mixes the glue solution and the slurry in the mixing container, the mixing mode that the glue solution is directly added into the slurry is avoided, the treatment agent reacts more completely, and then more dispersed and uniform drilling fluid is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of mud preparation, and in particular to a mud stirring and mixing device and a use method thereof. Background Art

[0002] Drilling fluid is a general term for various circulating fluids that meet the needs of drilling work with its multiple functions during the drilling process. Drilling fluid is the blood of drilling, also known as drilling flushing fluid. Drilling fluid can be divided into clean water, mud, clay-free flushing fluid, emulsion, foam and compressed air according to its composition. Clean water is the earliest drilling fluid used. It does not need to be treated and is easy to use. It is suitable for intact rock formations and areas with sufficient water sources. Mud is a widely used drilling fluid, mainly suitable for unstable rock formations such as loose, cracked, prone to collapse and block falling, and swelling and peeling when exposed to water. Drilling fluid is mainly composed of liquid phase, solid phase and chemical treatment agent. The liquid phase can be water (fresh water, salt water), oil (crude oil, diesel) or emulsion (mixed oil emulsion and inverted emulsion). The solid phase includes useful solid phase (bentonite, weighting material) and useless solid phase (rock). Chemical treatment agents include inorganic, organic and polymer compounds.

[0003] Standard addition of treatment agents in mud is one of the key factors to ensure the smooth progress of drilling operations. During the drilling process, mud not only plays the role of cleaning the bottom cuttings, cooling and lubricating the drill bit and drill string, but also has multiple functions such as wall building, controlling formation pressure, suspending cuttings and other weighting materials, etc. Therefore, the correct addition of treatment agents is crucial to improving drilling efficiency and ensuring drilling safety.

[0004] In the prior art, in order to avoid directly adding solid or powdered treatment agents to prevent agglomeration, the treatment agents need to be prepared into a glue solution, which is then added to the mud and stirred for mixing. This mixing method of directly adding the glue solution to the mud is likely to result in incomplete reaction of the treatment agent, and thus a dispersed and uniform drilling fluid cannot be obtained. Summary of the invention

[0005] The embodiment of the present invention provides a mud stirring and mixing device, which adopts a continuous and uniform glue liquid addition method and combines it with stirring. It can solve the problem of directly adding glue liquid to the mud in the prior art, which easily leads to incomplete reaction of the treatment agent and thus fails to obtain a dispersed and uniform drilling fluid.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a mud stirring and mixing device, comprising a mixing container, a mud storage container for storing mud, a glue storage container for storing glue for preparing a treatment agent, and a stirring mechanism arranged inside the mixing container, and also comprising:

[0007] A mud pump, the mud pump is used to continuously and evenly transport the mud in the mud storage container to the mixing container, the liquid inlet end of the mud pump is provided with a mud inlet pipe connected to the mud storage container, and the liquid outlet end of the mud pump is provided with a mud conduit connected to the mixing container;

[0008] A piston mechanism, wherein the piston mechanism is used to continuously and evenly transport the glue in the glue storage container to the mixing container;

[0009] A water wheel mechanism, the water wheel mechanism comprises a water wheel shell arranged on a mud conduit and water wheel blades rotatably connected to the inside of the water wheel shell, the water wheel blades are coaxially provided with a turntable, the turntable is provided with an eccentric pin, and the eccentric pin is rotatably connected to a connecting rod that drives a piston mechanism to perform piston movement.

[0010] Preferably, the piston mechanism includes a piston cylinder, a piston slidably connected to the piston cylinder and a piston rod fixedly connected to the piston, the liquid inlet end of the piston cylinder is provided with a glue inlet pipe connected to a glue storage container, and the liquid outlet end of the piston cylinder is provided with a glue outlet pipe connected to a mixing container.

[0011] Preferably, the glue liquid inlet pipe and the glue liquid outlet pipe are respectively provided with a liquid one-way valve.

[0012] Preferably, the mud conduit is connected to the mixing container via a glue outlet pipe.

[0013] Preferably, a rectangular groove is provided on the turntable, and the rectangular groove is arranged along the radial direction of the turntable. A screw is rotatably connected inside the rectangular groove, and a screw nut is threadedly connected on the screw, and the eccentric pin is arranged on the screw nut. A motor with an output end fixedly connected to the screw nut is provided outside the rectangular groove.

[0014] Preferably, the stirring mechanism comprises a hollow rotating shaft rotatably connected to the top wall of the mixing container, a plurality of liquid outlet holes are provided at the lower portion of the hollow rotating shaft, and the glue outlet pipe is rotatably connected to the hollow rotating shaft.

[0015] Preferably, the stirring mechanism further comprises a plurality of stirring blades arranged at the lower end of the hollow rotating shaft.

[0016] Preferably, the stirring mechanism also includes a hollow cylindrical drainage hood with upper and lower openings, and a support rod fixedly connected to the side wall of the mixing container is provided on the side wall of the drainage hood. The lower end of the drainage hood does not contact the inner bottom wall of the mixing container. A plurality of drainage holes are opened on the drainage hood, and an outwardly protruding drainage cap is provided above the drainage holes.

[0017] Preferably, a driving pulley is coaxially arranged on the water wheel blade, a driven pulley is arranged on the hollow rotating shaft, and a belt is connected between the driving pulley and the driven pulley.

[0018] The method of use of the present invention adopts the following steps:

[0019] S1: The mud is stored in a mud storage container, and the glue prepared by the treatment agent is stored in a glue storage container;

[0020] S2: The mud pump continuously and evenly transports the mud in the mud storage container to the mixing container. The mud pump drives the piston mechanism to work through the water wheel mechanism, and the piston mechanism continuously and evenly transports the glue in the glue storage container to the mixing container.

[0021] S3: The stirring mechanism stirs and mixes the mud and glue liquid transported to the mixing container.

[0022] Compared with the prior art, the present invention adopts the coordinated arrangement of a mixing container, a mud storage container, a glue storage container, a stirring mechanism, a mud pump, a mud inlet pipe, a mud conduit, a piston mechanism, a water wheel mechanism, a turntable, an eccentric pin and a connecting rod. The mud pump extracts mud from the mud storage container and transports it continuously and evenly to the mixing container. The flowing mud drives the water wheel blades of the water wheel mechanism to rotate, and the water wheel blades drive the turntable to rotate. The turntable drives the piston mechanism to perform piston movement through the eccentric pin and the connecting rod, and continuously and evenly transports the glue in the glue storage container to the mixing container. The stirring mechanism stirs and mixes the glue and mud in the mixing container, avoiding the mixing method of directly adding the glue to the mud, so that the treatment agent reacts more completely, thereby obtaining a more dispersed and uniform drilling fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the top view structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the water wheel housing of the present invention from top view;

[0025] Figure 3 It is a schematic diagram of the top view of the water wheel housing of the present invention;

[0026] Figure 4 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 5 It is a schematic diagram of the main cross-sectional structure of the mixing container of the present invention;

[0028] Figure 6 It is a schematic diagram of the main structure of the drainage cover of the present invention.

[0029] In the figure: 1. mixing container; 2. mud storage container; 3. glue storage container; 4. mud pump; 5. mud inlet pipe; 6. piston cylinder; 7. piston; 8. piston rod; 9. glue inlet pipe; 10. glue outlet pipe; 11. mud conduit; 12. water wheel shell; 13. water wheel blade; 14. turntable; 15. eccentric pin; 16. connecting rod; 17. rectangular groove; 18. screw rod; 19. screw rod nut; 20. motor; 21. hollow shaft; 22. liquid outlet hole; 23. drainage cover; 24. support rod; 25. drainage hole; 26. driving pulley; 27. driven pulley; 28. belt; 29. ​​drainage cap; 30. stirring blade. DETAILED DESCRIPTION

[0030] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] like Figure 1 to Figure 6 As shown, a mud stirring and mixing device and a method for using the same, wherein the mud stirring and mixing device of the present invention comprises a mixing container 1, a mud storage container 2 for storing mud, a glue storage container 3 for storing glue for preparing a treatment agent, and a stirring mechanism arranged inside the mixing container 1, and further comprises:

[0032] A mud pump 4, which is used to continuously and evenly transport the mud in the mud storage container 2 to the mixing container 1. The liquid inlet end of the mud pump 4 is provided with a mud inlet pipe 5 connected to the mud storage container 2, and the liquid outlet end of the mud pump 4 is provided with a mud conduit 11 connected to the mixing container 1;

[0033] The piston mechanism is used to continuously and evenly transport the glue in the glue storage container 3 to the mixing container 1;

[0034] A water wheel mechanism, the water wheel mechanism comprises a water wheel housing 12 arranged on the mud conduit 11 and a water wheel blade 13 rotatably connected to the inside of the water wheel housing 12, the water wheel blade 13 is coaxially provided with a rotating disk 14, the rotating disk 14 is provided with an eccentric pin 15, and the eccentric pin 15 is rotatably connected with a connecting rod 16 for driving the piston mechanism to make a piston movement;

[0035] A drilling fluid outlet pipe with a valve is provided at the lower end of the side wall of the mixing container 1 .

[0036] During specific use, the mud pump 4 draws mud from the mud storage container 2 and transports it to the mixing container 1 continuously and evenly, the flowing mud drives the water wheel blades 13 of the water wheel mechanism to rotate, the water wheel blades 13 drive the turntable 14 to rotate, the turntable 14 drives the piston mechanism to perform piston movement through the eccentric pin 15 and the connecting rod 16, and continuously and evenly transports the glue in the glue storage container 3 to the mixing container 1, the stirring mechanism stirs and mixes the glue and mud in the mixing container 1, and the drilling fluid prepared after mixing is discharged from the drilling fluid outlet pipe.

[0037] In order to achieve the purpose of continuously and evenly adding glue to the mixing container 1, preferably, the piston mechanism includes a piston cylinder 6, a piston 7 slidably connected to the piston cylinder 6 and a piston rod 8 fixedly connected to the piston 7, the liquid inlet end of the piston cylinder 6 is provided with a glue inlet pipe 9 connected to the glue storage container 3, the liquid outlet end of the piston cylinder 6 is provided with a glue outlet pipe 10 connected to the mixing container 1, the glue inlet pipe 9 and the glue outlet pipe 10 are respectively provided with liquid check valves, the mud conduit 11 is connected to the mixing container 1 through the glue outlet pipe 10, and the mud pump 4 extracts the mud in the mud storage container 2 and continuously and evenly adds the mud to the mixing container 1. The mud is uniformly transported to the mixing container 1, and the flowing mud drives the water wheel blades 13 of the water wheel mechanism to rotate, and the water wheel blades 13 drive the turntable 14 to rotate, and the turntable 14 drives the eccentric pin 15 to rotate, and the eccentric pin 15 drives the piston 7 to perform piston movement inside the piston cylinder 6 through the connecting rod 16 and the piston rod 8, and the glue in the glue storage container 3 is continuously and uniformly transported to the mixing container 1. During the transportation process, the liquid one-way valve prevents the solution from flowing back, and the mud and the glue are preliminarily mixed in the glue outlet pipe 10 and then enter the mixing container 1 together, which further improves the dispersion and uniformity of the drilling fluid.

[0038] In order to achieve the purpose of adjusting the addition ratio of the treatment agent, preferably, a rectangular groove 17 is provided on the turntable 14, and the rectangular groove 17 is arranged along the radial direction of the turntable 14. A screw rod 18 is rotatably connected inside the rectangular groove 17, and a screw nut 19 is threadedly connected to the screw rod 18. The eccentric pin 15 is arranged on the screw nut 19, and a motor 20 is arranged outside the rectangular groove 17 with an output end fixedly connected to the screw nut 19. If it is necessary to increase the addition ratio of the treatment agent, the motor 20 drives the screw rod 18 to rotate, and the rectangular groove 1 7, the screw nut 19 drives the eccentric pin 15 to move toward the edge of the turntable 14, increasing the eccentric distance of the eccentric pin 15, increasing the stroke of the piston 7, and thereby increasing the addition ratio of the treatment agent; if the addition ratio of the treatment agent needs to be reduced, the motor 20 drives the screw 18 to rotate in the opposite direction, and under the guidance of the rectangular groove 17, the screw nut 19 drives the eccentric pin 15 to move toward the axis of the turntable 14, reducing the eccentric distance of the eccentric pin 15, reducing the stroke of the piston 7, and thereby reducing the addition ratio of the treatment agent.

[0039] In order to achieve the purpose of improving the dispersion and uniformity of the drilling fluid, preferably, the water wheel blade 13 is coaxially provided with a driving pulley 26, a driven pulley 27 is provided on the hollow rotating shaft 21, a belt 28 is connected between the driving pulley 26 and the driven pulley 27, and the stirring mechanism includes a hollow rotating shaft 21 rotatably connected to the top wall of the mixing container 1, a plurality of liquid outlet holes 22 are opened at the lower part of the hollow rotating shaft 21, and the glue outlet pipe 10 is rotatably connected to the hollow rotating shaft 21, and also includes a plurality of stirring blades 3 arranged at the lower end of the hollow rotating shaft 21. 0, the rotating water wheel blades 13 drive the active pulley 26 to rotate, the active pulley 26 drives the driven pulley 27 to rotate through the belt 28, the driven pulley 27 drives the hollow shaft 21 to rotate, the hollow shaft 21 drives the stirring blade 30 to rotate, the mixed liquid of the glue and mud premixed in the glue outlet pipe 10 enters the hollow shaft 21, through the rotation of the hollow shaft 21, the mixed liquid is uniformly and dispersedly sprayed into the mixing container 1 through the liquid outlet hole 22, and is stirred by the stirring blade 30 to make the mixed liquid mixed evenly.

[0040] In order to achieve the purpose of improving the dispersion and uniformity of the drilling fluid, preferably, the stirring mechanism also includes a hollow cylindrical drainage hood 23 with upper and lower openings. A support rod 24 fixedly connected to the side wall of the mixing container 1 is provided on the side wall of the drainage hood 23. The lower end of the drainage hood 23 does not contact the inner bottom wall of the mixing container 1. A plurality of drainage holes 25 are provided on the drainage hood 23. A convex drainage cap 29 is provided above the drainage hole 25. The rotating stirring blades 30 generate irregular vortexes and negative pressure inside the drainage hood 23. The mixed liquid is sucked in from the bottom of the mixing container 1, lifted to the inside of the drainage hood 23 to be fully mixed, and is continuously thrown out under the action of centrifugal force. After being ejected from the drainage hole 25, it flows back into the drainage hood 23. The mixed liquid ejected from the drainage hole 25 is blocked by the drainage cap 29, which reduces the discharge height of the mixed liquid and shortens the mixing time, so that the mixed liquid is repeatedly circulated between the drainage hood 23 and the mixing container 1, thereby improving the dispersion and uniformity of the drilling fluid.

[0041] The method of use of the present invention adopts the following steps:

[0042] S1: The mud is stored in the mud storage container 2, and the glue prepared by the treatment agent is stored in the glue storage container 3;

[0043] S2: The mud pump 4 continuously and evenly transports the mud in the mud storage container 2 to the mixing container 1. The mud pump 4 drives the piston mechanism to work through the water wheel mechanism, and the piston mechanism continuously and evenly transports the glue in the glue storage container 3 to the mixing container 1.

[0044] S3: The stirring mechanism stirs and mixes the mud and glue liquid transported to the mixing container 1 .

[0045] Compared with the prior art, the present invention comprises a mixing container 1, a mud storage container 2, a glue storage container 3, a stirring mechanism, a mud pump 4, a mud inlet pipe 5, a mud conduit 11, a piston mechanism, a water wheel mechanism, a turntable 14, an eccentric pin 15 and a connecting rod 16. The mud pump 4 extracts the mud in the mud storage container 2 and transports it continuously and evenly to the mixing container 1. The flowing mud drives the water wheel blades 13 of the water wheel mechanism to rotate. The water wheel blades 13 drive the turntable 14 to rotate. The turntable 14 drives the piston mechanism to perform piston movement through the eccentric pin 15 and the connecting rod 16, and continuously and evenly transports the glue in the glue storage container 3 to the mixing container 1. The stirring mechanism stirs and mixes the glue and mud in the mixing container 1, avoiding the mixing method of directly adding the glue to the mud, so that the treatment agent reacts more completely, thereby obtaining a more dispersed and uniform drilling fluid.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mud stirring and mixing device, comprising a mixing container (1), a mud storage container (2) for storing mud, a glue storage container (3) for storing glue for preparing a treatment agent, and a stirring mechanism arranged inside the mixing container (1), characterized in that: Also includes: A mud pump (4), the mud pump (4) being used to continuously and evenly transport the mud in the mud storage container (2) to the mixing container (1), the liquid inlet end of the mud pump (4) being provided with a mud inlet pipe (5) connected to the mud storage container (2), and the liquid outlet end of the mud pump (4) being provided with a mud conduit (11) connected to the mixing container (1); A piston mechanism, the piston mechanism being used to continuously and evenly transport the glue liquid in the glue liquid storage container (3) to the mixing container (1); A water wheel mechanism, the water wheel mechanism comprising a water wheel housing (12) arranged on a mud conduit (11) and a water wheel blade (13) rotatably connected to the inside of the water wheel housing (12), the water wheel blade (13) being coaxially provided with a rotating disk (14), the rotating disk (14) being provided with an eccentric pin (15), the eccentric pin (15) being rotatably connected to a connecting rod (16) for driving a piston mechanism to perform piston movement.

2. The mud stirring and mixing device according to claim 1, characterized in that: The piston mechanism comprises a piston cylinder (6), a piston (7) slidably connected to the piston cylinder (6), and a piston rod (8) fixedly connected to the piston (7); a liquid inlet end of the piston cylinder (6) is provided with a glue liquid inlet pipe (9) connected to a glue liquid storage container (3); and a liquid outlet end of the piston cylinder (6) is provided with a glue liquid outlet pipe (10) connected to a mixing container (1).

3. The mud stirring and mixing device according to claim 2, characterized in that: The glue liquid inlet pipe (9) and the glue liquid outlet pipe (10) are respectively provided with liquid one-way valves.

4. The mud stirring and mixing device according to claim 3 is characterized in that: The mud conduit (11) is connected to the mixing container (1) via the glue outlet pipe (10).

5. The mud stirring and mixing device according to claim 1, characterized in that: The rotating disk (14) is provided with a rectangular groove (17), the rectangular groove (17) being arranged along the radial direction of the rotating disk (14), a screw rod (18) being rotatably connected inside the rectangular groove (17), a screw rod nut (19) being threadedly connected to the screw rod (18), the eccentric pin (15) being arranged on the screw rod nut (19), and a motor (20) having an output end fixedly connected to the screw rod nut (19) being arranged outside the rectangular groove (17).

6. The mud stirring and mixing device according to claim 5, characterized in that: The stirring mechanism comprises a hollow rotating shaft (21) rotatably connected to the top wall of the mixing container (1), a plurality of liquid outlet holes (22) are provided at the bottom of the hollow rotating shaft (21), and the glue outlet pipe (10) is rotatably connected to the hollow rotating shaft (21).

7. The mud stirring and mixing device according to claim 6, characterized in that: The stirring mechanism further comprises a plurality of stirring blades (30) arranged at the lower end of the hollow rotating shaft (21).

8. The slurry stirring and mixing device according to claim 7, characterized in that: The stirring mechanism further comprises a hollow cylindrical drainage hood (23) with upper and lower openings, a support rod (24) fixedly connected to the side wall of the mixing container (1) is arranged on the side wall of the drainage hood (23), the lower end of the drainage hood (23) does not contact the inner bottom wall of the mixing container (1), a plurality of drainage holes (25) are opened on the drainage hood (23), and a protruding drainage cap (29) is arranged above the drainage hole (25).

9. The mud stirring and mixing device according to claim 8, characterized in that: The water wheel blade (13) is coaxially provided with a driving pulley (26), the hollow rotating shaft (21) is provided with a driven pulley (27), and a belt (28) is connected between the driving pulley (26) and the driven pulley (27) for transmission.

10. A method for using a mud stirring and mixing device, comprising using the mud stirring and mixing device as claimed in claim 1, characterized in that: The following steps are involved: S1: The mud is stored in a mud storage container (2), and the glue prepared by the treatment agent is stored in a glue storage container (3); S2: The mud pump (4) continuously and evenly transports the mud in the mud storage container (2) to the mixing container (1). The mud pump (4) drives the piston mechanism to work through the water wheel mechanism, and the piston mechanism continuously and evenly transports the glue in the glue storage container (3) to the mixing container (1). S3: The stirring mechanism stirs and mixes the mud and glue liquid transported to the mixing container (1).

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