Cement paste stirring device for well cementation operation

Abstract

The utility model provides a cement paste stirring device for well cementation operation, which relates to the technical field of cement paste stirring and comprises a supporting plate, a vertical plate is fixedly mounted on the top surface of the supporting plate, a motor is fixedly mounted on the side surface of the vertical plate, a rotating rod is mounted at the output end of the motor, a frustum roller is fixedly mounted at one end of the rotating rod, and the frustum roller is fixedly mounted on the other end of the rotating rod. And the surface of the frustum roller communicates with a feeding pipe, the inner wall of the feeding pipe is slidably connected with a blocking rod, a cone is fixedly installed at the top end of the blocking rod, and a connecting plate is fixedly installed on the surface of the blocking rod. According to the utility model, the cone and the blocking rod are automatically driven to move by utilizing the pressure of cement paste, so that the feeding pipe is automatically opened and closed, the intervention requirement of operators is reduced, the operation efficiency and safety are improved, and after the cement paste conveying process is finished, the blocking rod can automatically return and seal the feeding pipe, so that the labor intensity of workers is reduced. External impurities are effectively prevented from entering and cement paste is effectively prevented from leaking, the sealing performance is improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of cement slurry stirring, in particular to a cement slurry stirring device for cementing operation. Background Art

[0002] The operation of lowering casing into the well and injecting cement into the annular space between the wellbore and the casing is called cementing. During the cementing process, a cement slurry stirring device is usually used to process the cement slurry, and then the cement slurry is transported to the designated cementing location through a transportation device.

[0003] Publication No. CN210046868U discloses a cement slurry stirring device for cementing operations, including a frustum roller and a clamping sleeve, wherein the two side ends of the clamping sleeve are provided with a clamping groove, the long diameter end of the frustum roller is respectively clamped with the inner side wall of the clamping groove, the short diameter end of the frustum roller is penetrated and inserted and fixed with a coupling rod, a washer is sleeved on the coupling rod located on the outer side wall of the short diameter end of the frustum roller, a fastening screw is threaded on the side surface of the coupling rod close to the washer, a low-speed motor is connected to one end of the coupling rod, a sleeve is rotatably sleeved on the outer surface of the washer, and the sleeve Support seat plates are symmetrically fixed on both sides of the bottom of the pad and the clamping sleeve, an inlet is opened on one side of the top of the clamping sleeve, and a sealing plug is inserted into the inner wall of the inlet, a discharge port is opened on one side of the bottom of the clamping sleeve, and a stop valve is clamped on the inner wall of the discharge port, a discharge pipe is inserted into the lower end of the side surface of the clamping sleeve, one end of the discharge pipe is connected to the side surface of the discharge port, and the other end of the discharge pipe is connected to a connector, T-shaped scrapers are fixed to the end walls of both sides of the clamping sleeve, and the side surfaces of the T-shaped scrapers are in contact with the side walls of the inner cavity of the frustum roller. Although this cement slurry stirring device can realize the low-speed rotation of the conical drum driven by the power of the low-speed motor through the cooperation between the conical drum and the clamping sleeve, it can prevent the cement slurry from condensing in a static state when the cement slurry is transported, and while the conical drum is rotating, the inner wall of the conical drum is continuously cleaned by using a T-shaped scraper to prevent the slurry from condensing on the inner wall of the conical drum. However, the opening and closing of the feed pipe requires manual operation by the operator, which not only increases the complexity of the operation, but also reduces the work efficiency and increases the safety risks in the operation. Moreover, after the cement slurry conveying process is completed, the feed pipe still relies on manual closure, which is easy to cause poor sealing due to improper operation, so that external impurities are easy to enter, and may also cause cement slurry leakage, affecting the working environment and the quality of cement slurry. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a cement slurry stirring device for cementing operation, comprising a support plate, a vertical plate is fixedly installed on the top surface of the support plate, a motor is fixedly installed on the side surface of the vertical plate, a rotating rod is installed on the output end of the motor, a frustum roller is fixedly installed on one end of the rotating rod, the surface of the frustum roller is connected to a feed pipe, a blocking rod is slidably connected to the inner wall of the feed pipe, a cone is fixedly installed on the top end of the blocking rod, a connecting plate is fixedly installed on the surface of the blocking rod, a sliding rod is fixedly installed on the top surface of the connecting plate, a block is fixedly installed on the top end of the sliding rod, and a spring is sleeved on the surface of the sliding rod.

[0006] Preferably, one end of the spring is fixedly connected to the stopper, and the other end of the spring is fixedly connected to the frustum roller. Here, the spring can be stably installed.

[0007] Preferably, the sliding rod is slidably connected to the frustum roller, and the vertical plates are symmetrically distributed on the top surface of the support plate.

[0008] Preferably, support ribs are fixedly installed on the surface of the vertical board, and the support ribs are symmetrically distributed on the surface of the vertical board. Here, the vertical board can be stably supported.

[0009] Preferably, the bottom surface of the support plate is provided with a moving mechanism, the moving mechanism comprises a short rod, the short rod is arranged through the bottom surface of the support plate, the short rod is slidably connected with the support plate, a top block is fixedly installed at one end of the short rod, a pulley is fixedly installed at the other end of the short rod, a mounting block is fixedly installed on the top surface of the support plate, and a rubber pad is fixedly installed on the inner side of the mounting block. Here, the utility model can be conveniently moved.

[0010] Preferably, the rubber pad is made of natural rubber, and the mounting block is a "U"-shaped structure.

[0011] Preferably, the pulleys are evenly distributed at the four corners of the bottom surface of the support plate.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. The utility model realizes automatic opening and closing of the feed pipe by utilizing the pressure of cement slurry to automatically drive the movement of the cone and the plugging rod, reduces the need for operator intervention, and improves operating efficiency and safety. After the cement slurry conveying process is completed, the plugging rod can automatically return and close the feed pipe, effectively preventing external impurities from entering and cement slurry from leaking, improving the sealing performance, and having high practicality.

[0014] 2. The utility model can be easily moved by using pulleys, and can automatically adjust through the short rod and top block mechanism when encountering uneven ground, and cooperate with the rubber pad to absorb vibration, thereby ensuring the overall movement stability. The vibration absorption function of the rubber pad can significantly reduce the wear of mechanical parts caused by vibration or impact, extend the service life of the equipment, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a cement slurry stirring device for cementing operation is provided for the utility model;

[0016] Figure 2 A cross-sectional view of a cement slurry stirring device for cementing operation is provided for the utility model;

[0017] Figure 3 The utility model proposes a cement slurry mixing device for cementing operation Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 A side view of a cement slurry stirring device for cementing operation is provided for the utility model;

[0019] Figure 5 The utility model proposes a cement slurry mixing device for cementing operation Figure 4 Enlarged view of point B in the middle.

[0020] Legend:

[0021] 1. Support plate; 2. Vertical plate; 3. Motor; 4. Rotating rod; 5. Cone roller; 6. Feed pipe; 7. Blocking rod; 8. Cone; 9. Connecting plate; 10. Sliding rod; 11. Stopper; 12. Spring; 13. Support rib; 14. Short rod; 15. Top block; 16. Pulley; 17. Mounting block; 18. Rubber pad. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1

[0025] See also Figure 1-5The utility model provides a technical solution: a cement slurry stirring device for cementing operation, including a support plate 1, a vertical plate 2 is fixedly installed on the top surface of the support plate 1, and a support rib 13 is fixedly installed on the surface of the vertical plate 2. The support rib 13 is symmetrically distributed on the surface of the vertical plate 2, providing uniform force distribution and better balance. The use of bolt fixing method enhances the stability and durability of the overall structure. A motor 3 is fixedly installed on the side of the vertical plate 2, and a rotating rod 4 is installed at the output end of the motor 3 through a key connection method. This connection method can reliably transmit torque and allow certain axial adjustment, which is convenient for maintenance and assembly.

[0026] See also Figure 1-5 A conical roller 5 is fixedly mounted on one end of the rotating rod 4, and a feed pipe 6 is connected to the surface of the conical roller 5. A blocking rod 7 is slidably connected to the inner wall of the feed pipe 6, and a cone 8 is fixedly mounted on the top of the blocking rod 7. The connection is welded or mechanically fixed to ensure that the cone 8 can stably transmit force when subjected to cement slurry pressure. When cement slurry enters through the feed pipe 6, the cone 8 can be pressed downward, so that the cone 8 drives the blocking rod 7 to slide along the inner wall of the feed pipe 6. A connecting plate 9 is fixedly mounted on the surface of the blocking rod 7, and a sliding rod 10 is fixedly mounted on the top surface of the connecting plate 9. The sliding rod 10 is connected to the conical roller 5 by a sliding fit to provide smooth movement. A stopper 11 is fixedly mounted on the top of the sliding rod 10, and a spring 12 is sleeved on the surface of the sliding rod 10. One end of the spring 12 is fixedly connected to the stopper 11, and the other end is fixedly connected to the conical roller 5. This spring connection allows the stopper 11 to be pushed upward by the reaction force of the spring 12 after the cement slurry pressure disappears, and the feed pipe 6 is reclosed, thereby automatically sealing the feed pipe 6 and preventing the entry of external impurities. When the cement slurry stops being input, the elastic force of the spring 12 drives the stopper 11, the slide bar 10, the connecting plate 9 and the blocking rod 7 to move upward until the blocking rod 7 blocks the feed pipe 6 again, sealing the pipeline.

[0027] Embodiment 2

[0028] See also Figure 4-5 The bottom surface of the support plate 1 is provided with a moving mechanism, which includes a short rod 14. The short rod 14 is arranged on the bottom surface of the support plate 1 and is slidably connected with the support plate 1. A sliding bearing or a lubricated slideway can be used to reduce wear and make the movement smoother. A top block 15 is fixedly installed at one end of the short rod 14, and a pulley 16 is fixedly installed at the other end of the short rod 14. The pulleys 16 are evenly distributed at the four corners of the bottom surface of the support plate 1. Bolts or welding can be used for fixing. These fixing methods increase the stability and durability of the structure. A mounting block 17 is fixedly installed on the top surface of the support plate 1, and a rubber pad 18 is fixedly installed on the inner side of the mounting block 17. The material of the rubber pad 18 is natural rubber. The mounting block 17 is a "U"-shaped structure, which is easy to install and provides sufficient supporting force.

[0029] Working principle: cement slurry can enter through the feed pipe 6. When the cement slurry enters the feed pipe 6, the cement slurry can squeeze the cone 8 downward, and the cone 8 then drives the blocking rod 7 to move. The blocking rod 7 moves in the feed pipe 6 at this time. After the blocking rod 7 leaves the feed pipe 6, the cement slurry enters the conical roller 5 through the gap between the cone 8 and the feed pipe 6. After the cement slurry enters the conical roller 5 from the feed pipe 6, the cone 8 loses its extrusion. At this time, due to the elastic force of the spring 12, the spring 12 can drive the stopper 11 to move upward, and the stopper 11 can then drive the slide bar 10 to move, and the slide bar 10 can then drive the connecting plate 9 to move, and the connecting plate 9 can then drive the blocking rod 7 to move upward until the blocking rod 7 blocks the feed pipe 6. At this time, the feed pipe 6 can be sealed, and then the motor 3 can drive the rotating rod 4 to rotate, and the rotating rod 4 can then drive the conical roller 5 to rotate, and the cement slurry can be stirred at this time. The utility model automatically drives the movement of the cone 8 and the blocking rod 7 by utilizing the pressure of the cement slurry. The automatic opening and closing of the feed pipe 6 is realized, which reduces the need for operator intervention and improves operational efficiency and safety. After the cement slurry conveying process is completed, the blocking rod 7 can automatically return and close the feed pipe 6, effectively preventing the entry of external impurities and the leakage of cement slurry, and improving the sealing performance. The utility model can be conveniently moved by the set pulley 16, and when the pulley 16 walks on the ground, when encountering potholes on the ground, the pulley 16 can drive the short rod 14 to move, and the short rod 14 can then drive the top block 15 to squeeze the rubber pad 18, at which time the rubber pad 18 can absorb vibrations, making the utility model more stable when moving. The utility model can be conveniently moved by using the pulley 16, and when encountering uneven ground, it can also automatically adjust through the short rod 14 and the top block 15 mechanism, and cooperate with the rubber pad 18 to absorb vibrations, thereby ensuring the overall movement stability. The vibration absorption function of the rubber pad 18 can significantly reduce the wear of mechanical parts caused by vibration or impact, thereby extending the service life of the equipment.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A cement slurry stirring device for cementing operation, comprising a support plate (1), characterized in that: A vertical plate (2) is fixedly mounted on the top surface of the support plate (1), a motor (3) is fixedly mounted on the side surface of the vertical plate (2), a rotating rod (4) is mounted on the output end of the motor (3), a conical roller (5) is fixedly mounted on one end of the rotating rod (4), a feed pipe (6) is connected to the surface of the conical roller (5), a blocking rod (7) is slidably connected to the inner wall of the feed pipe (6), a cone (8) is fixedly mounted on the top end of the blocking rod (7), a connecting plate (9) is fixedly mounted on the surface of the blocking rod (7), a sliding rod (10) is fixedly mounted on the top surface of the connecting plate (9), a stopper (11) is fixedly mounted on the top end of the sliding rod (10), and a spring (12) is sleeved on the surface of the sliding rod (10).

2. The cement slurry stirring device for cementing operation according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the stopper (11), and the other end of the spring (12) is fixedly connected to the frustum roller (5).

3. The cement slurry stirring device for cementing operation according to claim 1, characterized in that: The sliding rod (10) is slidably connected to the cone roller (5), and the vertical plates (2) are symmetrically distributed on the top surface of the support plate (1).

4. The cement slurry stirring device for cementing operation according to claim 1, characterized in that: Support ribs (13) are fixedly mounted on the surface of the vertical plate (2), and the support ribs (13) are symmetrically distributed on the surface of the vertical plate (2).

5. The cement slurry stirring device for cementing operation according to claim 1, characterized in that: The bottom surface of the support plate (1) is provided with a moving mechanism, the moving mechanism comprising a short rod (14), the short rod (14) is arranged through the bottom surface of the support plate (1), the short rod (14) is slidably connected to the support plate (1), a top block (15) is fixedly mounted on one end of the short rod (14), a pulley (16) is fixedly mounted on the other end of the short rod (14), a mounting block (17) is fixedly mounted on the top surface of the support plate (1), and a rubber pad (18) is fixedly mounted on the inner side of the mounting block (17).

6. The cement slurry stirring device for cementing operation according to claim 5, characterized in that: The rubber pad (18) is made of natural rubber, and the mounting block (17) is a "U"-shaped structure.

7. The cement slurry stirring device for cementing operation according to claim 5, characterized in that: The pulleys (16) are evenly distributed at the four corners of the bottom surface of the support plate (1).

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