Mine slurry filling pipeline capable of preventing solid particle deposition

Abstract

The mine slurry filling pipeline capable of preventing the solid particles from depositing comprises a plurality of connecting pipes, the two axial ends of each connecting pipe are rotationally connected with fixing devices so that the connecting pipe located between the two fixing devices can rotate, and an annular protection box is arranged between the two fixing devices located at the two ends of each connecting pipe. The fixers are all in sealed connection with the conveying pipe. According to the filling pipeline, slurry can be discharged smoothly in time, the problems that in the long-distance slurry conveying process of an existing filling pipeline, large-diameter particles are prone to deposition, the pipeline is blocked, and the filling effect is affected are solved, and the circulation efficiency of the pipeline is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine slurry filling pipelines, and particularly relates to a mine slurry filling pipeline for preventing solid particle deposition. Background Technique

[0002] In order to further realize green mining in the coal field, the coal gangue slurry filling technology has developed rapidly. The coal gangue is crushed and added with water to make a slurry with a certain concentration, and is pumped to the underground filling area through a long-distance pipeline. While realizing the green disposal of gangue, it effectively avoids the damage of the underground goaf to the surface ecological environment. However, during the pipeline transportation of the slurry, due to reasons such as the long pipeline transportation distance, certain roughness of the pipe wall, and different particle diameters in the slurry, the slurry will be in a laminar flow state during the pipeline transportation process, and some large-diameter particles will deposit at the bottom of the pipeline, resulting in problems such as low slurry concentration at the pipeline outlet and easy blockage of the pipeline, affecting the normal operation process and filling effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a mine slurry filling pipeline for preventing solid particle deposition, which solves the problems that in the process of long-distance slurry transportation of the existing filling pipeline, large-diameter particles are prone to deposition and pipeline blockage, affecting the filling effect.

[0004] The technical solution adopted by the utility model is: a mine slurry filling pipeline for preventing solid particle deposition, including a number of connecting pipes. Both axial ends of each connecting pipe are rotatably connected to fixators, so that the connecting pipe located between the two fixators can rotate. An annular protection box is arranged between the two fixators at both ends of the connecting pipe, and a number of fixators are hermetically connected to the conveying pipe.

[0005] The utility model is further characterized in that

[0006] Two flow disturbing plates are symmetrically arranged on the inner wall of the connecting pipe. Each flow disturbing plate is arranged along the length direction of the connecting pipe. The flow disturbing plate is an arc-shaped plate protruding towards the central axis of the connecting pipe. A fixing seat is arranged at the center of one flow disturbing plate, a connecting rod is vertically arranged on the fixing seat, and a number of flow disturbing blades are rotatably arranged on the connecting rod. The rotation directions of the number of flow disturbing blades are perpendicular to the flow direction of the slurry in the connecting pipe.

[0007] The thickness of the flow disturbing plate does not exceed 6 mm, and the radian of the flow disturbing plate protruding towards the center of the connecting pipe is 5° - 10°.

[0008] A motor is horizontally arranged at the bottom of the annular protection box. The output shaft of the motor is sleeved with a gear, and a circular gear is welded on the outer wall of the connecting pipe. The gear is meshed with the circular gear, and the motor drives the connecting pipe to rotate.

[0009] The fixator has a cuboid block structure. A through hole is provided inside the fixator. A tooth rail is provided on the inner wall at one end of the through hole, and the tooth rail meshes with a circular gear. The connecting pipe rotates freely within the fixator. The inner wall at the other end of the through hole is provided with internal threads, and external threads are arranged at the end of the conveying pipe. The internal threads and the external threads are in threaded sealing connection, and the connecting pipe communicates with the conveying pipe through the fixator.

[0010] A suspension injection port is provided on the conveying pipe.

[0011] The beneficial effects of the present utility model are as follows: For the mine slurry filling pipeline for preventing solid particle deposition of the present utility model, considering from the perspective of the conveying characteristics of slurry particles in the pipeline, by installing a spoiler on the connecting pipe, the flow state of the slurry in the pipeline is changed. At the same time, the motor is started, the motor drives the gear to rotate, the rotation of the gear drives the circular gear to rotate, the rotation of the circular gear drives the connecting pipe to rotate, the rotation of the connecting pipe drives the connecting rod to rotate, and the rotation of the connecting rod drives the spoiler blade to rotate, so that the slurry particles are further evenly mixed, avoiding the deposition of large-diameter particles in the slurry at the bottom of the pipeline and the occurrence of laminar flow state in the pipeline. At the same time, the wear of the large-diameter particles on the pipe wall is reduced. While ensuring the filling effect, the conveying cost is effectively saved. Description of the Drawings

[0012] Figure 1 is a schematic structural view of the mine slurry filling pipeline for preventing solid particle deposition of the present utility model;

[0013] Figure 2 is a top view of the connecting pipe in the mine slurry filling pipeline for preventing solid particle deposition of the present utility model;

[0014] Figure 3 is a cross-sectional view of the connecting pipe in the mine slurry filling pipeline for preventing solid particle deposition of the present utility model;

[0015] Figure 4 is a cross-sectional view of the fixator in the mine slurry filling pipeline for preventing solid particle deposition of the present utility model.

[0016] In the figure, 1. annular protection box, 2. connecting pipe, 3. fixator, 4. conveying pipe, 5. circular gear, 6. spoiler blade, 7. connecting rod, 8. fixing seat, 9. spoiler, 10. injection port, 11. motor, 12. gear, 13. tooth rail. Detailed Description of the Embodiment

[0017] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments.

[0018] Embodiment 1

[0019] The present utility model provides a mine slurry filling pipeline for preventing solid particle deposition, as Figure 1As shown in the figure, it includes several connecting pipes 2. Both axial ends of each connecting pipe 2 are rotatably connected to a fixator 3, such that the connecting pipe 2 between two fixators 3 can rotate. An annular protection box 1 is arranged between two fixators 3 at both ends of the connecting pipe 2. Several fixators 3 are hermetically connected to a delivery pipe 4. The rotating connecting pipe 2 prevents large-diameter particles in the slurry from depositing at the bottom of the pipeline and the pipeline from presenting a laminar flow state.

[0020] Embodiment 2

[0021] As Figure 2 and Figure 3 shown in the figure, two flow spoilers 9 are symmetrically arranged on the inner wall of the connecting pipe 2. Each flow spoiler 9 is arranged along the length direction of the connecting pipe 2. The flow spoiler 9 is an arc-shaped plate protruding towards the central axis of the connecting pipe 2. A fixing seat 8 is arranged at the center of one flow spoiler 9. A connecting rod 7 is vertically arranged on the fixing seat 8. Several flow vanes 6 are rotatably arranged on the connecting rod 7. The rotating directions of several flow vanes 6 are perpendicular to the flow direction of the slurry in the connecting pipe 2.

[0022] Embodiment 3

[0023] The thickness of the flow spoiler 9 does not exceed 6 mm, and the radian of the flow spoiler 9 protruding towards the center of the connecting pipe 2 is 5° - 10°.

[0024] A motor 11 is horizontally arranged at the bottom of the annular protection box 1. The output shaft of the motor 11 is sleeved with a gear 12. A circular gear 5 is welded on the outer wall of the connecting pipe 2. The gear 12 is meshed with the circular gear 5. The motor 11 in the annular protection box 1 drives the connecting pipe 2 to rotate.

[0025] As Figure 4 shown in the figure, the fixator 3 has a cuboid block structure. A through hole is opened inside the fixator 3. A tooth rail 13 is arranged on the inner wall at one end of the through hole. The tooth rail 13 is meshed with the circular gear 5. The connecting pipe 2 rotates freely within the fixator 3; an internal thread is arranged on the inner wall at the other end of the through hole, and an external thread is arranged at the end of the delivery pipe 4. The internal thread is in threaded sealing connection with the external thread. The connecting pipe 2 is communicated with the delivery pipe 4 through the fixator 3. The delivery pipe 4 has the same diameter as the connecting pipe 2.

[0026] A suspension injection port 10 is arranged on the delivery pipe 4. If the deposition phenomenon of slurry particles is serious and the disturbance effect of the flow spoiler 9 and the flow vanes 6 on the flow state of the slurry is not good, a suspension is added into the suspension injection port 10. Through the disturbance action of the flow spoiler 9 and the flow vanes 6, the fine particles in the suspension are uniformly mixed with the large particles in the slurry solution, a better slip layer is formed at the bottom of the delivery pipe 4, the wall lift of the large particles is increased, the collision probability between the large particles in the slurry and the bottom of the pipeline is effectively reduced, and the conveying effect of the slurry filling the pipeline is further improved.

[0027] The working principle of the mine slurry filling pipeline of the present utility model for preventing solid particle deposition is that when the slurry passes through the connecting pipe 2, under the action of the spoiler 9, the flow state of the slurry changes. At the same time, the motor 11 is started, the motor 11 drives the gear 12 to rotate, the rotation of the gear 12 drives the circular gear 5 to rotate, the rotation of the circular gear 5 drives the connecting pipe 2 to rotate, the rotation of the connecting pipe 2 drives the connecting rod 7 to rotate, and the rotation of the connecting rod 7 drives the spoiler blade 6 to rotate, further evenly mixing the slurry particles, avoiding the deposition of large-diameter particles in the bottom of the pipeline and the occurrence of laminar flow state in the pipeline, while reducing the wear of the large-diameter particles on the pipe wall, ensuring the filling effect and effectively saving the transportation cost.

[0028] The working process of the mine slurry filling pipeline of the present utility model for preventing solid particle deposition is that the slurry solution in the conveying pipe 4 flows into the connecting pipe 2 through the fixator 3, the gear 12 on the motor 11 in the annular protection box 1 drives the circular gear 5 on the connecting pipe 2 to rotate, the circular gear 5 integrally drives the connecting pipe 2 to rotate meshingly on the tooth track 13 of the fixator 3. When the connecting pipe 2 rotates, the slurry solution in the connecting pipe 2 performs a centrifugal operation, increasing the slurry inlet pressure of the conveying pipe 4. A number of spoiler blades 6 arranged in the connecting pipe 2 rotate, and the fine particles in the slurry solution are evenly mixed with the large particles in the slurry solution, further dispersing the slurry, making it difficult for the slurry to accumulate, improving the mixing effect, and significantly increasing the fluidity of the slurry.

[0029] If the phenomenon of slurry particle deposition is serious and the disturbing effect of the spoiler 9 and the spoiler blade 6 on the slurry flow state is not good, further add a suspending agent to the suspending agent injection port 10, and through the disturbing action of the spoiler 9 and the spoiler blade 6, the fine particles in the suspending agent are evenly mixed with the large particles in the slurry solution, forming a good slip layer at the bottom of the pipeline, increasing the wall lift of the large particles, effectively reducing the collision probability between the large particles in the slurry and the bottom of the pipeline, and further improving the transportation effect of the slurry filling pipeline.

Claims

1. A mine slurry filling pipeline for preventing solid particle deposition, characterized in that, It includes a number of connecting pipes (2). Both axial ends of each connecting pipe (2) are rotatably connected to a fixture (3), so that the connecting pipe (2) located between the two fixtures (3) can rotate. An annular protection box (1) is arranged between the two fixtures (3) at both ends of the connecting pipe (2). A number of fixtures (3) are all hermetically connected to a delivery pipe (4).

2. The mine slurry filling pipeline for preventing solid particle deposition according to claim 1, wherein Two flow spoilers (9) are symmetrically arranged on the inner wall of the connecting pipe (2). Each flow spoiler (9) is arranged along the length direction of the connecting pipe (2). The flow spoiler (9) is an arc-shaped plate protruding towards the central axis of the connecting pipe (2). A fixing seat (8) is arranged at the center of one flow spoiler (9). A connecting rod (7) is vertically arranged on the fixing seat (8). A number of flow spoiler blades (6) are rotatably arranged on the connecting rod (7). The rotating directions of the number of flow spoiler blades (6) are perpendicular to the flow direction of the slurry in the connecting pipe (2).

3. The mine slurry filling pipeline for preventing solid particle deposition according to claim 2, characterized in that, The thickness of the flow spoiler (9) does not exceed 6 mm, and the radian of the flow spoiler (9) protruding towards the center of the connecting pipe (2) is 5° - 10°.

4. The mine slurry filling pipeline for preventing solid particle deposition according to claim 1, characterized in that, A motor (11) is horizontally arranged at the bottom of the annular protection box (1). The output shaft of the motor (11) is sleeved with a gear (12). A circular gear (5) is welded on the outer wall of the connecting pipe (2). The gear (12) is meshed and connected with the circular gear (5), and the motor (11) drives the connecting pipe (2) to rotate.

5. The mine slurry filling pipeline for preventing solid particle deposition according to claim 4, wherein The fixture (3) has a cuboid block structure. A through hole is opened inside the fixture (3). A tooth rail (13) is arranged on the inner wall at one end of the through hole. The tooth rail (13) is meshed with the circular gear (5), and the connecting pipe (2) rotates freely within the fixture (3); an internal thread is arranged on the inner wall at the other end of the through hole, an external thread is arranged at the end of the delivery pipe (4), and the internal thread is in threaded sealing connection with the external thread. The connecting pipe (2) is communicated with the delivery pipe (4) through the fixture (3).

6. The mine slurry filling pipeline for preventing solid particle deposition according to claim 1, wherein, A suspension injection port (10) is arranged on the delivery pipe (4).

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