Deep well slurry filling pipeline system with pressure reduction function
By adding a decompression function device to the deep well slurry filling pipeline system, diversion and pressure reduction grouting liquid transport, the problems of vertical pipeline wear and leakage are solved, and the stable conveying of slurry and the long-term use of the pipeline are achieved.
Patent Information
- Application Number
- CN202421875445.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The existing deep well slurry filling vertical pipelines are prone to wear, resulting in frequent slurry leakage accidents, and the deep well vertical pipelines wear greatly, affecting the normal operation of the system.
A deep well slurry filling pipeline system with reduced pressure function was designed. By adding a pressure reduction function device during the slurry conveying process, the vertical bent pipe is divided into multiple bent pipes to reduce gravity potential energy and pressure, and a pressure reduction device is set up at the change of the bent pipe direction to reduce the damage to the bent pipe by gravity potential energy.
It effectively reduces the wear of the pipeline, ensures the stable transportation of the slurry, reduces the occurrence of slurry leakage accidents, and reduces operating costs.
Smart Images
Figure CN223035097U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mining filling equipment, and particularly relates to a deep well slurry filling pipeline system with a pressure reducing function. Background Technique
[0002] As a harmless gangue disposal method, slurry filling mining can realize the large-scale and high-efficiency of solid waste, and at the same time, it can also form a collaborative production mode of coal resource mining and environmental protection, which is more and more accepted by coal enterprises. The existing slurry transportation from the ground to the underground uses an "L"-shaped pipeline. The impact force of the high-drop slurry on the bottom elbow of the "L"-shaped pipeline is relatively large, which is extremely easy to cause slurry leakage accidents in the filling pipeline. Replacing the pipeline affects the normal operation of the entire slurry filling system and increases the pipeline operation cost. Moreover, with the exhaustion of shallow coal resources, the deep mining trend of coal resources has become normal, and the problem of large wear of deep well vertical pipelines should be concerned. Therefore, it is necessary to design a deep well slurry filling pipeline system with a pressure reducing function and its use method. Content of the Utility Model
[0003] The purpose of the utility model is to provide a deep well slurry filling pipeline system with a pressure reducing function, which solves the problem that the existing deep well slurry filling vertical pipeline is easy to cause wear and slurry leakage.
[0004] The technical solution adopted by the utility model is that a deep well slurry filling pipeline system with a pressure reducing function includes a ground pulp making station, a vertical pipeline, a pressure reducing function device, a horizontal pipeline and a goaf; the ground pulp making station is connected to the input end of the pressure reducing function device through the vertical pipeline, the output end of the pressure reducing function device is connected to the input end of the horizontal pipeline, and the output end of the horizontal pipeline is connected to the goaf.
[0005] The characteristics of the utility model also lie in that
[0006] The pressure reducing function device includes a one-to-many module, a plurality of elbows, a many-to-one module and a control cabinet; the one-to-many module includes an elbow one-to-many joint, a valve one, and a plurality of transfer pipelines; the elbow one-to-many joint is connected to the vertical pipeline, the elbow one-to-many joint is connected to one end of the plurality of transfer pipelines, the other end of the transfer pipeline is connected to the elbow, and a pressure reducing device is arranged at the turning point of each elbow; the many-to-one module includes an elbow many-to-one joint, a plurality of pipelines, and a pressure gauge. One end of the elbow is connected to the pipeline, and the other end of the pipeline is connected to the horizontal pipeline through the many-to-one joint.
[0007] The pressure reducing device includes a support plate arranged on one side of the inner wall of the elbow, and the support plate is connected to the inner wall of the elbow through a spring.
[0008] Valve one is arranged on each transfer pipeline, valve one is connected to the one-to-many control signal output end, and the one-to-many control signal output end is also connected to the control cabinet.
[0009] A valve 2 and a pressure gauge are provided on the pipeline. The pressure gauge is connected to the multi-turn one control signal input terminal. The multi-turn one control signal output terminal is connected to valve 2. The multi-turn one control signal output terminal and the multi-turn one control signal input terminal are also connected to the control cabinet.
[0010] The beneficial effect of the utility model is that, by adding a decompression function device during the slurry transportation process, on the one hand, the vertical bend in the L-shaped pipe is divided into multiple bends, the gravitational potential energy and pressure of the vertical pipe are reduced, the diversion of the slurry in the vertical pipe is realized, and the inability to transport the slurry caused by the wear of the gravitational potential energy on the single pipe is weakened; on the other hand, by arranging a decompression device at the place where the direction of the bend changes, the damage to the bend caused by the gravitational potential energy generated by the slurry transported from the vertical pipe can be effectively reduced. Compared with the conventional pipeline transportation method, the wear of the pipeline is greatly reduced, and the stable transportation of the slurry is further guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a structural schematic diagram of a deep well slurry filling pipeline system with a decompression function according to the utility model;
[0012] Figure 2 It is a structural schematic diagram of a pressure reducing device in a deep well slurry filling pipeline system with a pressure reducing function according to the utility model;
[0013] Figure 3 This is a schematic diagram of a one-to-multi-module system in a deep well slurry filling pipeline system with a pressure reducing function according to the utility model.
[0014] Figure 4 It is a schematic diagram of a decompression device at a bend in a deep well slurry filling pipeline system with a decompression function according to the utility model.
[0015] Figure 5 It is a schematic diagram of a multi-turn module in a deep well slurry filling pipeline system with a decompression function of the utility model;
[0016] In the figure: 1. Ground pulping station; 2. Vertical pipeline; 3. Pressure reducing function device; 4. One-turn multiple modules; 4-1. One-turn multiple joints; 4-2. Valve one; 4-3. One-turn multiple control signal output terminals; 4-4. Transfer pipeline; 5. Elbow; 6. Pressure reducing device; 6-1. Spring; 6-2. Support plate; 7. Multiple turns to one module; 7-1. Multiple turns to one joint; 7-2. Pressure gauge; 7-3. Valve two; 7-4. Multiple turns to one control signal input terminal; 7-5. Multiple turns to one control signal output terminal; 7-6. Pipeline; 8. Control cabinet; 9. Horizontal pipeline; 10. Goaf. DETAILED DESCRIPTION
[0017] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.
[0018] Embodiment 1
[0019] The deep well slurry filling pipeline system with a pressure reducing function of the utility model is as follows Figure 1 As shown, it includes a ground pulp making station 1, a vertical pipeline 2, a pressure reducing function device 3, a horizontal pipeline 9 and a goaf 10. The ground pulp making station 1 is connected to the input end of the pressure reducing function device 3 through the vertical pipeline 2, the output end of the pressure reducing function device 3 is connected to the input end of the horizontal pipeline 9, and the output end of the horizontal pipeline 9 is connected to the goaf 10.
[0020] Embodiment 2
[0021] Furthermore, as Figure 2 shown, the pressure reducing function device 3 includes a one-to-many module 4, a plurality of elbows 5, a many-to-one module 7 and a control cabinet 8; as Figure 3 shown, the one-to-many module 4 includes an elbow one-to-many joint 4-1, a valve one 4-2, and a transfer pipeline 4-4; the elbow one-to-many joint 4-1 is connected to the vertical pipeline 2, the elbow one-to-many joint 4-1 is connected to one end of a plurality of transfer pipelines 4-4, a valve one 4-2 is arranged on each transfer pipeline 4-4, the valve one 4-2 is connected to a one-to-many control signal output end 4-3, and the one-to-many control signal output end 4-3 is connected to the control cabinet 8; the other end of the transfer pipeline 4-4 is connected to the elbow 5, as Figure 4 shown, a pressure reducing device 6 is arranged at the turning point of each elbow 5, and the pressure reducing device 6 includes a support plate 6-2 arranged on one side of the inner wall of the elbow 5, and the support plate 6-2 is connected to the inner wall of the elbow 5 through a spring 6-1;
[0022] The pressure reducing device 6 is composed of a spring 6-1 and a support part 6-2, and the spring can be selected according to different slurry pressures, and the support part has an anti-corrosion function; the slurry acts on the support plate 6-2 from the one-to-many module 4 due to gravity, converting the gravitational potential energy into elastic potential energy, and reducing the action of the gravitational potential energy on the elbow pipe wall.
[0023] As Figure 5 shown, the many-to-one module 7 includes an elbow many-to-one joint 7-1, a plurality of pipelines 7-6, a pressure gauge 7-2 and a valve two 7-3, the elbow 5 is connected to one end of the pipeline 7-6, the other end of the pipeline 7-6 is connected to the horizontal pipeline 9 through a many-to-one joint 7-1, a valve two 7-3 and a pressure gauge 7-2 are arranged on the pipeline 7-6, the pressure gauge 7-2 is connected to a many-to-one control signal input end 7-4, and a many-to-one control signal output end 7-5 is connected to the valve two 7-3, and the many-to-one control signal output end 7-5 and the many-to-one control signal input end 7-4 are also connected to the control cabinet 8;
[0024] A controller is provided inside the control cabinet 8, and the control cabinet 8 has functions of human-computer interaction and automatic judgment. The controller receives the slurry pressure signal from the pressure gauge 7-2 and controls the opening and closing of the valves through the second valve 7-3 and the first valve 4-2.
[0025] The diameter of the one-to-multiple modules 4 is approximately equal to the diameter of the vertical pipeline 2; the diameter of the multiple-to-one connection module 7 is approximately equal to the diameter of the horizontal pipeline 9, and this module can adapt to the existing filling pipeline space.
[0026] The one-to-multiple connection module 4 and the multiple-to-one connection module 7 are intelligently controlled by the control cabinet 8. When any elbow has problems such as slurry leakage (abnormal pressure), the pipeline can be closed through the control cabinet 8, thereby increasing the reliability of slurry transportation.
[0027] The multiple-to-one module 7 is equipped with a pressure gauge 7-2. When the slurry passes through the multiple-to-one module 7 and the pressure gauges 7-2 on each pipeline detect abnormal pressure, it indicates that the pipeline is abnormal. At this time, the valves of the one-to-multiple module and the multiple-to-one module can be closed through the control cabinet 8 to ensure the normal transportation of the pipeline.
[0028] Embodiment 3
[0029] The deep well slurry filling pipeline system of the present utility model with a pressure reducing function includes a ground pulp making station 1, a vertical pipeline 2, a one-to-multiple module 4, an elbow 5, a pressure reducing device 6, a multiple-to-one module 7, a control cabinet 8, a horizontal pipeline 9, and a goaf 10.
[0030] The slurry components of the ground pulp making station are 50% - 70% gangue, 5% - 15% fly ash, and 25% - 40% water. The mass ratio between the gangue slurry material components satisfies the following: gangue: fly ash: water = 6:1:3.
[0031] The specific working process is as follows:
[0032] When the slurry preparation at the ground pulp making station 1 is completed, the slurry is transported to the vertical slurry transportation pipeline 2, and at this time, the slurry enters the one-to-multiple module 4. When the slurry enters the one-to-multiple module 4, the first valve 4-2 near the one-to-multiple joint of the elbow 5 is opened, and the slurry in the vertical pipeline 2 is divided into multiple paths and enters the vertical pipeline part of the elbow 5. Finally, the slurry enters the pressure reducing device 6.
[0033] The slurry acts on the support plate part of the pressure reducing device 6-2 due to gravity. At this time, due to the existence of the spring 6-1, the gravitational potential energy generated by a part of the pipeline of the elbow 5 acts on the spring 6-1 through the support plate 6-2, converting the gravitational potential energy into elastic potential energy, avoiding the direct action of the slurry's gravitational potential energy on the bottom of the elbow 5. Then the slurry changes the flow direction and enters the horizontal part of the elbow 5, and at this time, the slurry enters the multiple-to-one module 7.
[0034] When the slurry enters the multi-to-one module 7, it passes through the elbow multi-to-one joint 7-1 at this time. The pressure gauge 7-2 measures the slurry pressure, and sends the slurry pressure value to the control cabinet 8 through the multi-to-one control signal input terminal 7-4. The slurry is collected from the multi-to-one module 7 to the horizontal pipeline 9 through the horizontal part of the elbow 5, and the slurry is transported to the designated position in the goaf 10. At this time, a complete grouting route transportation is completed.
[0035] When the slurry pressure value is transmitted to the control cabinet 8, the control cabinet 8 independently judges whether the slurry transportation of each pipeline of the elbow 5 is normal according to the preset pressure threshold. When it exceeds the set threshold range, the control closes the switches of the second valve 7-3 and the first valve 4-2, and reminds the technicians to repair in time.
[0036] The deep well slurry filling pipeline system with a pressure reducing function of the present utility model has a simple structure and is convenient to use. On the one hand, it can shunt the slurry transported by the vertical pipeline and weaken the slurry transportation pressure. On the other hand, adding a pressure reducing function device can effectively weaken the wear of the pipeline caused by the gravitational potential energy caused by the height difference in the deep well.
Claims
1. A deep well slurry filling pipeline system with a decompression function, characterized in that: The invention comprises a ground pulping station (1), a vertical pipeline (2), a pressure reducing function device (3), a horizontal pipeline (9) and a goaf (10); the ground pulping station (1) is connected to the input end of the pressure reducing function device (3) via the vertical pipeline (2), the output end of the pressure reducing function device (3) is connected to the input end of the horizontal pipeline (9), and the output end of the horizontal pipeline (9) is connected to the goaf (10).
2. The deep well slurry filling pipeline system with pressure reduction function according to claim 1 is characterized in that: The pressure reducing function device (3) comprises a one-to-many module (4), a plurality of elbows (5), a multi-to-one module (7) and a control cabinet (8); the one-to-many module (4) comprises an elbow-to-one-to-multiple joint (4-1), a valve (4-2) and a plurality of transfer pipes (4-4); the elbow-to-one-to-multiple joint (4-1) is connected to a vertical pipe (2); the elbow-to-one-to-multiple joint (4-1) is connected to one end of a plurality of transfer pipes (4-4); the other end of the transfer pipe (4-4) is connected to an elbow (5); and a pressure reducing device (6) is provided at the turning point of each elbow (5); the multi-to-one module (7) comprises an elbow-to-one-to-multiple joint (7-1), a plurality of pipes (7-6) and a pressure gauge (7-2); the elbow (5) is connected to one end of a pipe (7-6); and the other end of the pipe (7-6) is connected to a horizontal pipe (9) via a multi-to-one joint (7-1).
3. The deep well slurry filling pipeline system with pressure reduction function according to claim 2 is characterized in that: The pressure reducing device (6) comprises a support plate (6-2) arranged on one side of the inner wall of the curved pipe (5); the support plate (6-2) and the inner wall of the curved pipe (5) are connected via a spring (6-1).
4. The deep well slurry filling pipeline system with pressure reduction function according to claim 2 is characterized in that: The transfer pipeline (4-4) is provided with a valve one (4-2), the valve one (4-2) is connected to a one-to-many control signal output terminal (4-3), and the one-to-many control signal output terminal (4-3) is also connected to a control cabinet (8).
5. The deep well slurry filling pipeline system with pressure reduction function according to claim 2 is characterized in that: The pipeline (7-6) is provided with a second valve (7-3) and a pressure gauge (7-2); the pressure gauge (7-2) is connected to the multi-turn one control signal input terminal (7-4); the multi-turn one control signal output terminal (7-5) is connected to the second valve (7-3); the multi-turn one control signal output terminal (7-5) and the multi-turn one control signal input terminal (7-4) are also connected to a control cabinet (8).