A material mixing machine for drilling fluid production

Abstract

The utility model belongs to the field of drilling fluid production discloses a kind of material mixing machine of drilling fluid production, including the box cylinder device for carrying material to carry out stirring mixing, further including the vertical stirring device for vertical rotation stirring mixing for the box cylinder device top installation, box cylinder device bottom is equipped with the horizontal stirring device for horizontal rotation stirring mixing;Horizontal stirring device includes rotating cylinder, rotating cylinder is evenly distributed with several third rotating shaft, third rotating shaft is located rotating cylinder outside one end and is equipped with stirring plate, rotating cylinder one end is provided with third motor, second cover plate middle is provided with the adjusting assembly for rotation adjustment to increase the stirring confusion nature.Adjusting stirring plate inclination angle by bevel gear transmission system at random, actively increase stirring confusion degree, solve the problem of laminar flow caused by traditional fixed angle;By adjusting assembly, stirring plate angle is randomly changed, to prevent settlement stratification.

Description

Technical Field

[0001] This utility model belongs to the field of drilling fluid production, and in particular relates to a material mixer for drilling fluid production. Background Technology

[0002] Mixing drilling fluid production materials is a crucial step in oil drilling engineering, directly impacting drilling efficiency and downhole safety. The mixing process must strictly adhere to technical specifications to ensure uniform dispersion of all materials and the formation of a stable performance system. In the mixing operation, the base fluid type (water-based, oil-based, or synthetic-based) must first be determined according to drilling design requirements. Then, treatment agents are added sequentially in proportion. Bentonite, as the main thickening material, must be dispersed first, and high-speed stirring is used to ensure full hydration and the formation of a colloid. Next, chemical additives such as filtration loss reducers and shale inhibitors are added in batches, ensuring each agent is completely dissolved before adding the next material. Weighting materials (such as barite) are typically added slowly in the final stage to avoid localized high density that could lead to sedimentation.

[0003] Comparing this to Chinese patent CN217698891U, which discloses a feeding device for a double-helix conical mixer, the device includes four legs, a mixing shell with a valved discharge port on its inner bottom wall, a mixing hopper mounted on the mixing shell, and two screw-type agitators. By applying fluorocarbon coatings to the inner wall of the mixing hopper, the outer surface of the fixed column, the outer surface of the connecting plate, the inner wall of the mixing shell, and the inner wall of the opening, drilling fluid raw materials are prevented from adhering to the mixing hopper, fixed column, connecting plate, mixing shell, and opening. This allows the drilling fluid raw materials to slide down the surfaces of the mixing hopper, fixed column, connecting plate, and mixing shell from the opening into the mixing shell, preventing the drilling fluid raw materials from splashing out.

[0004] However, the above-mentioned patent has a single mixing direction, which can easily lead to laminar flow problems and seriously affect the uniformity of mixing. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a material mixer for drilling fluid production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A material mixer for drilling fluid production includes a tank device for carrying and mixing materials, a vertical stirring device mounted on the top of the tank device for vertically rotating and mixing in opposite directions, and a horizontal stirring device mounted on the bottom of the tank device for horizontally rotating and mixing. The vertical stirring device includes an upper cover with two first motors symmetrically mounted on it. A first rotating shaft is mounted on the output end of each first motor, and several stirring blades are evenly distributed on the first rotating shaft. The horizontal stirring device includes a rotating cylinder with several third rotating shafts evenly distributed on it. The third rotating shafts are rotatably connected to the rotating cylinder. A stirring plate is mounted on one end of each third rotating shaft located outside the rotating cylinder. A third motor is located at one end of the rotating cylinder. A first cover plate is mounted on the end of the rotating cylinder away from the third motor. A second cover plate is rotatably mounted on one side of the first cover plate, and an adjustment component for increasing the mixing turbulence is provided in the middle of the second cover plate.

[0008] Furthermore: the box-shaped device includes a box body, the bottom of the box body is semi-circular, a fixing frame is installed at the bottom of the box body, and infeed and discharge components are provided on both sides of the box body.

[0009] Furthermore: the feeding and discharging assembly includes a feeding hopper provided on one side of the top of the box body, and a discharging pipe provided on the bottom of the box body away from the feeding hopper, and a discharging valve is installed on the discharging pipe.

[0010] Furthermore, an inspection hole is provided at the bottom of the box body on the side away from the discharge pipe.

[0011] Furthermore, the stirring blades are arranged in four layers along the first rotating shaft, with four blades in each layer.

[0012] Furthermore: the adjustment assembly includes a second motor fixedly mounted on the second cover plate, a second rotating shaft mounted on the output end of the second motor, a plurality of active bevel gears evenly distributed on the second rotating shaft, and a passive bevel gear mounted on one end of the third rotating shaft located outside the rotating cylinder.

[0013] Furthermore: the rotating cylinder is connected to the box cylinder device and the first cover plate bearing respectively, and the second rotating shaft is connected to the first cover plate and the second cover plate bearing respectively.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. By adjusting the tilt angle of the mixing plate at irregular intervals through the bevel gear transmission system, the mixing disorder is actively increased, solving the laminar flow problem caused by the traditional fixed angle; by randomly changing the angle of the mixing plate through the adjustment component, it can adapt to high viscosity and multiphase mixing drilling fluid formulations and prevent sedimentation and stratification; the triple mixing mechanism of vertical + horizontal + dynamic adjustment breaks through the limitations of single-dimensional mixing.

[0016] 2. The bottom rotating drum drives the inclined stirring plate to push the material horizontally, forming an up-and-down circulating flow (such as the vortex effect), avoiding dead corners and ensuring sufficient radial mixing; the symmetrical stirring blades driven by dual motors rotate in opposite directions in the vertical direction, forming a strong shear force field, which quickly breaks up material agglomeration and achieves axial uniform mixing.

[0017] 3. The vertical stirring blades adopt a four-layer, four-blade layout, which covers a wider area in the axial direction and reduces repeated stirring; the horizontal stirring and vertical stirring work together to shorten the mixing time and reduce energy consumption; the horizontal stirring angle adjustment adopts on-demand triggering (non-continuous operation), which reduces the motor load and extends the equipment life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a material mixer for drilling fluid production according to the present invention;

[0019] Figure 2 This is a right axonometric view of the tank device of a material mixer for drilling fluid production according to the present invention;

[0020] Figure 3 This is a left axonometric view of the tank device of a material mixer for drilling fluid production according to the present invention;

[0021] Figure 4 This is a schematic diagram of the vertical stirring device of a material mixer for drilling fluid production according to the present invention;

[0022] Figure 5 This is a schematic diagram of the horizontal stirring device of a material mixer for drilling fluid production according to this utility model;

[0023] Figure 6 This is a front perspective view of the horizontal stirring device of the material mixer for drilling fluid production described in this utility model.

[0024] In the attached drawings, the following are the reference numerals: 101, box body; 102, fixed frame; 103, feed hopper; 104, discharge pipe; 105, discharge valve; 106, inspection hole; 201, upper box cover; 202, first motor; 203, first rotating shaft; 204, stirring blade; 301, rotating cylinder; 302, third motor; 303, first cover plate; 304, second cover plate; 305, second motor; 306, second rotating shaft; 307, driving bevel gear; 308, driven bevel gear; 309, third rotating shaft; 310, stirring plate. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-6 A material mixer for drilling fluid production includes a tank device for carrying and mixing materials, a vertical stirring device installed on the top of the tank device for vertically rotating and mixing in opposite directions, and a horizontal stirring device installed at the bottom of the tank device for horizontally rotating and mixing.

[0027] In this embodiment: the box-shaped device includes a box body 101, the bottom of which is semi-circular, a fixing frame 102 is installed at the bottom of the box body 101, and inlet and outlet components are provided on both sides of the box body 101; the inlet and outlet components include a feed hopper 103 provided on one side of the top of the box body 101, and an outlet pipe 104 provided on the bottom of the box body 101 away from the feed hopper 103, with an outlet valve 105 installed on the outlet pipe 104; an inspection hole 106 is provided on the bottom of the box body 101 away from the outlet pipe 104; the material is poured from the feed hopper 103 into the box body 101 supported by the fixing frame 102, and after mixing is completed, the outlet valve 105 is opened, and the drilling fluid flows out from the outlet pipe 104;

[0028] In this embodiment: the vertical stirring device includes an upper cover 201, on which two first motors 202 are symmetrically mounted. A first rotating shaft 203 is mounted at the output end of the first motors 202. A plurality of stirring blades 204 are evenly distributed on the first rotating shaft 203. The stirring blades 204 are arranged in four layers along the axial direction of the first rotating shaft 203, with four blades in each layer. The upper cover 201 supports the two first motors 202 to drive the first rotating shaft 203 to rotate the stirring blades 204, forming a vertically opposing rotating stirring and mixing of materials.

[0029] In this embodiment: the horizontal stirring device includes a rotating cylinder 301, on which several third rotating shafts 309 are evenly distributed. The third rotating shafts 309 are rotatably connected to the rotating cylinder 301. A stirring plate 310 is installed at one end of the third rotating shaft 309 on the outside of the rotating cylinder 301. A third motor 302 is installed at one end of the rotating cylinder 301. A first cover plate 303 is installed at the end of the rotating cylinder 301 away from the third motor 302. A second cover plate 304 is rotatably installed on one side of the first cover plate 303. An adjustment component for increasing stirring disorder is provided in the middle of the second cover plate 304. The adjustment component includes a second motor 305 fixedly installed on the second cover plate 304. A second rotating shaft 306 is installed at the output end of the second motor 305. Several driving bevel gears 307 are evenly distributed on the second shaft 306. A driven bevel gear 308 is installed at one end of the rotating shaft 309 on the outside of the rotating cylinder 301. The rotating cylinder 301 is connected to the bearings of the box body 101 and the first cover plate 303 respectively. The second rotating shaft 306 is connected to the bearings of the first cover plate 303 and the second cover plate 304 respectively. The third motor 302 drives the rotating cylinder 301 to drive the stirring plate 310 to rotate at an angle through the third rotating shaft 309, pushing the material to move horizontally from one end of the box body 101 to the other end, forming an up-and-down circulation of the material in the box body 101. The second cover plate 304 supports the second motor 305 to drive the active bevel gear 307 to rotate from time to time through the second rotating shaft 306 supported by the first cover plate 303, meshing with the driven bevel gear 308 to rotate. The third rotating shaft 309 drives the stirring plate 310 to rotate, adjusting the tilting and pushing angle to increase the mixing disorder.

[0030] Working principle: The material is poured from the feed hopper 103 into the box body 101 supported by the fixed frame 102. The upper box cover 201 supports two first motors 202, which drive the first rotating shaft 203 to rotate the stirring blades 204, forming a vertically opposing rotating stirring and mixing of the material. At the same time, the box body 101 supports a third motor 302 to drive the rotating cylinder 301 to drive the stirring plate 310 to tilt and rotate through the third rotating shaft 309, pushing the material to move horizontally from one end of the box body 101 to the other end, forming an up-and-down circulation of the material in the box body 101. The second cover plate 304 supports a second motor 305 to drive the active bevel gear 307 to rotate from time to time through the second rotating shaft 306 supported by the first cover plate 303, meshing with the passive bevel gear 308 to rotate, which drives the stirring plate 310 to rotate through the third rotating shaft 309, adjusting the tilting and pushing angle to increase the stirring disorder. After the stirring and mixing is completed, the discharge valve 105 is opened, and the stirring plate 310 rotates to push the drilling fluid out from the discharge pipe 104.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material mixer for drilling fluid production, comprising a tank device for carrying and mixing materials, characterized in that: It also includes a vertical stirring device installed on the top of the cylindrical assembly for vertically rotating and mixing in opposite directions, and a horizontal stirring device installed at the bottom of the cylindrical assembly for horizontally rotating and mixing. The vertical stirring device includes an upper box cover (201), on which two first motors (202) are symmetrically installed. A first rotating shaft (203) is installed at the output end of the first motor (202), and a plurality of stirring blades (204) are evenly distributed on the first rotating shaft (203). The horizontal stirring device includes a rotating cylinder (301), on which a plurality of third rotating shafts (309) are evenly distributed. The third rotating shafts (309) are rotatably connected to the rotating cylinder (301). A stirring plate (310) is installed at one end of the third rotating shaft (309) located outside the rotating cylinder (301). A third motor (302) is provided at one end of the rotating cylinder (301). A first cover plate (303) is installed at the end of the rotating cylinder (301) away from the third motor (302). A second cover plate (304) is rotatably installed on one side of the first cover plate (303). An adjustment component for increasing the stirring disorder is provided in the middle of the second cover plate (304).

2. The material mixer for drilling fluid production according to claim 1, characterized in that: The box-shaped device includes a box body (101), the bottom of which is semi-circular, a fixing frame (102) is installed at the bottom of the box body (101), and feeding and discharging components are provided on both sides of the box body (101).

3. The material mixer for drilling fluid production according to claim 2, characterized in that: The feeding and discharging assembly includes a feeding hopper (103) provided on one side of the top of the box body (101), and a discharging pipe (104) provided on the bottom side of the box body (101) away from the feeding hopper (103), and a discharging valve (105) installed on the discharging pipe (104).

4. A material mixer for drilling fluid production according to claim 3, characterized in that: The bottom of the box body (101) is provided with an inspection hole (106) on the side away from the discharge pipe (104).

5. A material mixer for drilling fluid production according to claim 1, characterized in that: The stirring blades (204) are arranged in four layers along the first rotating shaft (203), with four blades in each layer.

6. A material mixer for drilling fluid production according to claim 1, characterized in that: The adjustment assembly includes a second motor (305) fixedly mounted on the second cover plate (304), a second rotating shaft (306) mounted on the output end of the second motor (305), a plurality of active bevel gears (307) evenly distributed on the second rotating shaft (306), and a passive bevel gear (308) mounted on one end of the third rotating shaft (309) located outside the rotating cylinder (301).

7. A material mixer for drilling fluid production according to claim 6, characterized in that: The rotating cylinder (301) is connected to the bearings of the box cylinder device and the first cover plate (303) respectively, and the second rotating shaft (306) is connected to the bearings of the first cover plate (303) and the second cover plate (304) respectively.

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