Mixing and stirring device for low-permeability plugging agent

Abstract

The utility model discloses a mixing and stirring device for a low-permeability plugging agent. The mixing and stirring device comprises a kettle body, a driving unit and an adjusting unit, a supporting box is arranged at the upper end of the kettle body, a supporting plate is slidably connected to the middle of the supporting box, a stirring pipe is rotatably connected to the middle of the supporting plate, a stirring shaft is rotatably connected to the middle of the supporting box, the stirring shaft penetrates through the stirring pipe, the lower ends of the stirring pipe and the stirring shaft extend into the kettle body, and paddles are arranged at the ends of the stirring pipe and the stirring shaft; the driving unit is used for driving the stirring shaft and the stirring pipe to synchronously and reversely rotate; the adjusting unit is used for controlling the supporting plate to move up and down, a control switch set is arranged at the upper end of the kettle body, and the input end of the control switch set is electrically connected with an external power source. Due to diversified paddle movement, high-efficiency stirring can be provided for low-permeability plugging agent production raw materials, and the reaction efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of low-permeability plugging agent processing technology, specifically a low-permeability plugging agent mixing and stirring device. Background Technology

[0002] Low-permeability drilling fluid plugging agents are chemical substances used during drilling to prevent drilling fluid leakage and improve drilling efficiency. They are used to seal micro-fractures or loose, fractured zones in mechanically unstable rock formations, preventing water in the drilling fluid from seeping into the formation along the rock fissures and from fracturing and disintegrating upon contact with water, thereby preventing the collapse of the stable borehole wall. In the production process of low-permeability plugging agents, the raw materials need to be mixed and stirred. A mixing tank is a commonly used method. The existing technology is authorized by publication number CN 219816261. U's patent discloses a chemical reaction stirred tank, including a stirred tank body, on which a stirring mechanism is assembled and connected; the stirring mechanism includes a stirring motor, which is assembled and connected to a stirring shaft, and the stirring shaft is assembled and connected to an inner cage stirring structure and an outer cage stirring structure disposed outside the inner cage stirring structure; the inner cage stirring structure includes an upper inner seat ring and a lower inner seat ring fixedly assembled and connected to the stirring shaft; a number of inclined inner stirring cage plates are fixedly connected between the upper inner seat ring and the lower inner seat ring, which can improve stirring efficiency and stirring quality through a multi-form stirring plate structure, but the stirring position is fixed and the stirring is unidirectional, so there is still room for improvement in stirring reaction efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a mixing and stirring device for low-permeability plugging agents. It is equipped with double blades that can rotate synchronously in opposite directions, and the upper blade can move up and down. The diverse blade movements can provide efficient stirring for the raw materials of low-permeability plugging agent production, resulting in high reaction efficiency and effectively solving the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a low-permeability plugging agent mixing and stirring device, comprising a vessel body, a drive unit, and an adjustment unit;

[0005] The vessel body has a support box at its upper end, a support plate is slidably connected to the middle of the support box, a stirring tube is rotatably connected to the middle of the support plate, and a stirring shaft is rotatably connected to the middle of the support box. The stirring shaft passes through the stirring tube, and the lower ends of both the stirring tube and the stirring shaft extend into the interior of the vessel body and are equipped with blades at their ends.

[0006] Drive unit: Used to drive the stirring shaft and stirring tube to rotate synchronously in opposite directions;

[0007] Adjustment unit: Used to control the up and down movement of the support plate. It has two blades that rotate synchronously in opposite directions. At the same time, the upper blade can also move up and down. The diverse blade movements can form more complex and effective fluid movements. This movement mode helps to fully mix the raw materials for low-permeability plugging agent production in the reactor, thereby improving the stirring effect, ensuring uniform distribution, and high reaction efficiency.

[0008] Furthermore, a control switch group is provided at the upper end of the vessel body, and the input end of the control switch group is electrically connected to an external power source for convenient control of electrical appliances.

[0009] Furthermore, the drive unit includes a splined shaft, a splined sleeve, gears, a synchronous pulley, and a main motor. The splined shaft is rotatably connected to the left end inside the support box. The splined sleeve is movably sleeved on the outside of the splined shaft. The lower end of the splined sleeve is rotatably connected to the left end of the support plate. Gears are provided at the upper ends of both the splined sleeve and the stirring tube. The two gears are meshed together. Synchronous pulleys are provided at the upper ends of both the splined shaft and the stirring shaft. The two synchronous pulleys are connected by a synchronous belt drive. The main motor is located on the upper surface of the support box. The output shaft of the main motor is fixedly connected to the upper end of the splined shaft. The input end of the main motor is electrically connected to the output end of the control switch group to facilitate driving the two blades to rotate synchronously in opposite directions.

[0010] Furthermore, the adjustment unit includes a reciprocating lead screw, a reciprocating lead screw nut, a worm gear, and a worm. The reciprocating lead screw is rotatably connected to the right end inside the support box. The reciprocating lead screw is externally threaded with a reciprocating lead screw nut, which is fixedly connected to the support plate. A worm gear is provided at the upper end of the reciprocating lead screw, and a worm is rotatably connected to the upper end inside the support box. The worm and the worm gear mesh with each other, facilitating the up-and-down movement of the support plate.

[0011] Furthermore, the adjustment unit also includes an auxiliary motor and a handwheel. The handwheel is located at the front end of the worm gear, and the auxiliary motor is located at the upper end of the rear side of the support box. The output shaft of the auxiliary motor is fixedly connected to the rear end of the worm gear, and the input end of the auxiliary motor is electrically connected to the output end of the control switch group to facilitate the control of the rotation of the worm gear.

[0012] Furthermore, a transparent scale is provided at the observation hole on the front side of the support box to facilitate the determination of the position of the support plate.

[0013] Furthermore, the support box is provided with symmetrically distributed sliding columns inside, all of which are slidably connected to the support plate, providing movement guidance for the support plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This low-permeability plugging agent mixing and stirring device has the following advantages:

[0015] It has two blades that rotate synchronously in opposite directions. At the same time, the upper blade can also move up and down. The diverse blade motion can form a more complex and effective fluid motion. This motion mode helps to fully mix the raw materials for low-permeability plugging agent production in the reactor, thereby improving the stirring effect, ensuring uniform distribution, and high reaction efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the vessel body of this utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0019] In the diagram: 1. Reactor body, 2. Support box, 3. Stirring shaft, 4. Support plate, 5. Stirring tube, 6. Blade, 7. Drive unit, 71. Splined shaft, 72. Splined sleeve, 73. Gear, 74. Synchronous belt pulley, 75. Main motor, 8. Adjustment unit, 81. Reciprocating screw, 82. Reciprocating screw nut, 83. Worm gear, 84. Worm, 85. Auxiliary motor, 86. Handwheel, 9. Transparent scale, 10. Control switch group, 11. Sliding column. 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 1-3 This embodiment provides a technical solution: a low-permeability plugging agent mixing and stirring device, including a vessel body 1, a drive unit 7 and an adjustment unit 8;

[0022] The vessel body 1 has a support box 2 at its upper end. The raw materials for producing the low-permeability plugging agent are fed into the vessel body 1 through the feed pipe at the upper end. The lower end of the vessel body 1 has a discharge pipe and a discharge valve. The support box 2 provides installation positions for other components. A support plate 4 is slidably connected to the middle of the support box 2, and a stirring tube 5 is rotatably connected to the middle of the support plate 4. The support plate 4 drives the stirring tube 5 to move up and down. A stirring shaft 3 is rotatably connected to the middle of the support box 2, passing through the stirring tube 5. The lower ends of both the stirring tube 5 and the stirring shaft 3 extend into the interior of the vessel body 1 and are each equipped with a paddle 6 at its end. The stirring shaft 3 drives the lower paddle 6 to rotate, and the stirring tube 5 drives the upper paddle 6 to rotate. The two paddles 6 simultaneously stir the raw materials for producing the low-permeability plugging agent in opposite directions of rotation, creating a more complex and effective fluid motion. The mode facilitates the comprehensive mixing of raw materials for low-permeability plugging agent production within the reactor body 1, thereby improving the stirring effect, ensuring uniform material distribution, and high reaction efficiency. The stirring tube 5 slides relative to the reactor body 1 and the stirring shaft 3, while simultaneously driving the upper blade 6 to move up and down. The position of the upper blade 6 can be adjusted to ensure good stirring effect on the raw materials on the upper side. The upper end of the reactor body 1 is equipped with a control switch group 10, the input end of which is electrically connected to an external power source. A transparent scale 9 is provided at the observation hole on the front side of the support box 2. The transparent scale 9 is an acrylic scale, which facilitates the determination of the position of the support plate 4 and the manual adjustment of the height of the stirring tube 5. The interior of the support box 2 is equipped with symmetrically distributed sliding columns 11, all of which are slidably connected to the support plate 4. The sliding columns 11 provide movement guidance for the support plate 4.

[0023] Drive unit 7: Used to drive the stirring shaft 3 and stirring tube 5 to rotate synchronously in opposite directions. Drive unit 7 includes a splined shaft 71, a splined sleeve 72, gears 73, synchronous pulleys 74, and a main motor 75. The splined shaft 71 is rotatably connected to the left end inside the support box 2. The splined sleeve 72 is movably sleeved on the outside of the splined shaft 71. The lower end of the splined sleeve 72 is rotatably connected to the left end of the support plate 4. The support plate 4 drives the splined sleeve 72 and the stirring tube 5 to move up and down synchronously. The splined sleeve 72 slides relative to the splined shaft 71. Gears 73 are provided at the upper ends of both the splined sleeve 72 and the stirring tube 5. The two gears 73 are meshed together. Synchronous pulleys 74 are provided at the upper ends of both the splined shaft 71 and the stirring shaft 3. The support box 2 is equipped with a main motor 75 on its upper surface via a synchronous belt drive. The output shaft of the main motor 75 is fixedly connected to the upper end of the spline shaft 71. The input end of the main motor 75 is electrically connected to the output end of the control switch group 10. When the main motor 75 is running, the output shaft of the main motor 75 drives the spline shaft 71 to rotate. The spline shaft 71 drives the spline sleeve 72 and the left synchronous pulley 74 to rotate synchronously. The left synchronous pulley 74 drives the right synchronous pulley 74 to rotate via the synchronous belt. The right synchronous pulley 74 drives the lower blade 6 to rotate via the stirring shaft 3. The spline sleeve 72 drives the gear 73 on itself to rotate. The gear 73 on the spline sleeve 72 drives the gear 73 on the stirring tube 5 to rotate in the opposite direction.

[0024] Adjustment unit 8: Used to control the up and down movement of support plate 4. Adjustment unit 8 includes reciprocating screw 81, reciprocating screw nut 82, worm gear 83, and worm 84. The reciprocating screw 81 is rotatably connected to the right end inside the support box 2. The reciprocating screw nut 82 is threaded onto the outside of the reciprocating screw 81. The reciprocating screw nut 82 is fixedly connected to the support plate 4. The upper end of the reciprocating screw 81 is provided with worm gear 83. The upper end inside the support box 2 is rotatably connected to worm 84. Worm 84 is meshed with worm gear 83. Worm 84 passes through worm gear 83. The reciprocating screw 81 is rotated, and the reciprocating screw 81 will drive the support plate 4 to move vertically along the slide column 11 through the reciprocating screw nut 82. The adjustment unit 8 also includes an auxiliary motor 85 and a handwheel 86. The handwheel 86 is located at the front end of the worm gear 84, and the worm gear 84 can be rotated by the handwheel 86. The auxiliary motor 85 is located at the upper end of the rear side of the support box 2. The output shaft of the auxiliary motor 85 is fixedly connected to the rear end of the worm gear 84. The input end of the auxiliary motor 85 is electrically connected to the output end of the control switch group 10. The auxiliary motor 85 drives the worm gear 84 to rotate.

[0025] The working principle of the low-permeability plugging agent mixing and stirring device provided by this utility model is as follows: During use, the raw materials for producing the low-permeability plugging agent are added into the interior of the vessel 1 through the upper feed pipe. The control switch group 10 is adjusted, and the main motor 75 starts operating. The output shaft of the main motor 75 drives the spline shaft 71 to rotate. The spline shaft 71 drives the spline sleeve 72 and the left synchronous pulley 74 to rotate synchronously. The left synchronous pulley 74 drives the right synchronous pulley 74 to rotate via a synchronous belt. The right synchronous pulley 74 drives the lower impeller 6 to rotate via the stirring shaft 3. The spline sleeve 72 drives its own gear 73 to rotate. The gear 73 on the spline sleeve 72 drives the gear 73 on the stirring tube 5 to rotate in the opposite direction. The stirring tube 5 drives the upper impeller 6 to rotate. The two impellers 6 simultaneously stir the raw materials for producing the low-permeability plugging agent in opposite directions of rotation, forming a more complex and effective fluid motion. This motion mode helps to reduce permeability... The raw materials for the sealing agent production are thoroughly mixed in the reactor body 1, thereby improving the stirring effect and ensuring uniform material distribution. While stirring, the worm gear 84 can be rotated by the handwheel 86. The worm gear 84 drives the reciprocating screw 81 to rotate through the worm wheel 83. The reciprocating screw 81 drives the support plate 4 to move vertically along the sliding column 11 through the reciprocating screw nut 82. The support plate 4 drives the spline sleeve 72 and the stirring tube 5 to move up and down synchronously. The spline sleeve 72 slides relative to the spline shaft 71, and the stirring tube 5 slides relative to the reactor body 1 and the stirring shaft 3. At the same time, it drives the upper blade 6 to move up and down. The position of the upper blade 6 can be adjusted to ensure a good stirring effect on the raw materials on the upper side. At the same time, the control switch group 10 can be adjusted to operate the auxiliary motor 85. The auxiliary motor 85 drives the worm gear 84 to rotate, which in turn drives the upper blade 6 to move up and down reciprocally, thereby achieving a better stirring effect.

[0026] It is worth noting that the main motor 75 and the auxiliary motor 85 disclosed in the above embodiments can be freely configured according to the actual application scenario. The main motor 75 can be a geared motor of model TCV28-750, and the auxiliary motor 85 can be a geared motor of model 6IK300RGU-CF. The control switch group 10 is provided with switch buttons corresponding to the main motor 75 and the auxiliary motor 85 to control their switching operation.

[0027] 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. A low permeability plugging agent mixing and stirring device, characterized in that: It includes kettle body (1), drive unit (7) and adjusting unit (8); Kettle body (1): its upper end is equipped with support box (2), the middle part of support box (2) is slidably connected with support plate (4), the middle part of support plate (4) is rotatably connected with stirring tube (5), the middle part of support box (2) is rotatably connected with stirring shaft (3), stirring shaft (3) penetrates stirring tube (5), the lower end of stirring tube (5) and stirring shaft (3) extends to the inside of kettle body (1) and is equipped with paddle (6) at the end head; Drive unit (7): for driving stirring shaft (3) and stirring tube (5) synchronous reverse rotation; Adjusting unit (8): for controlling the up and down movement of support plate (4).

2. The mixing and stirring device for low-permeability plugging agent according to claim 1, characterized in that: The upper end of the kettle body (1) is provided with a control switch group (10), and the input end of the control switch group (10) is electrically connected with an external power supply.

3. The mixing and stirring device of a low-permeability plugging agent according to claim 2, characterized in that: The drive unit (7) includes spline shaft (71), spline sleeve (72), gear (73), synchronous pulley (74) and main motor (75), the spline shaft (71) is rotatably connected to the left end inside the support box (2), the spline sleeve (72) is movably sleeved outside the spline shaft (71), the lower end of the spline sleeve (72) is rotatably connected with the left end of the support plate (4), the upper end of the spline sleeve (72) and the stirring tube (5) is provided with gear (73), the two gears (73) are meshed and connected, the upper end of the spline shaft (71) and the stirring shaft (3) is provided with synchronous pulley (74), the two synchronous pulleys (74) are drivingly connected through synchronous belt, the upper surface of the support box (2) is provided with main motor (75), the output shaft of the main motor (75) is fixedly connected with the upper end of the spline shaft (71), the input end of the main motor (75) is electrically connected with the output end of the control switch group (10).

4. The mixing and stirring device of a low-permeability plugging agent according to claim 2, characterized in that: The adjusting unit (8) includes reciprocating screw rod (81), reciprocating screw rod nut (82), worm (83) and worm (84), the reciprocating screw rod (81) is rotatably connected to the right end inside the support box (2), the reciprocating screw rod nut (82) is threadedly connected outside the reciprocating screw rod (81), the reciprocating screw rod nut (82) is fixedly connected with the support plate (4), the upper end of the reciprocating screw rod (81) is provided with worm (83), the upper end inside the support box (2) is rotatably connected with worm (84), the worm (84) is meshed and connected with the worm (83).

5. The mixing and stirring device of a low-permeability plugging agent according to claim 4, characterized in that: The adjusting unit (8) further includes auxiliary motor (85) and hand wheel (86), the hand wheel (86) is arranged at the front end of the worm (84), the auxiliary motor (85) is arranged at the upper end of the rear side of the support box (2), the output shaft of the auxiliary motor (85) is fixedly connected with the rear end of the worm (84), the input end of the auxiliary motor (85) is electrically connected with the output end of the control switch group (10).

6. The mixing and stirring device of a low-permeability plugging agent according to claim 1, characterized in that: The observation hole of the front side of the support box (2) is provided with transparent scale (9).

7. The mixing and stirring device of a low-permeability plugging agent according to claim 1, characterized in that: The inside of the support box (2) is provided with symmetrically distributed slide columns (11), and the slide columns (11) are slidably connected with the support plate (4).

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