Multi-drill-hole dynamic hole sealing and slurry supplementing device

Abstract

The utility model discloses a multi-drill-hole dynamic hole sealing and grout supplementing device which comprises a grouting pump, a control switch is arranged on the grouting pump, the control switch is connected with one end of an air inlet pipe, the other end of the air inlet pipe is connected with a compressed air connector, the grouting pump is connected with one end of a connecting pipe, and the other end of the connecting pipe is connected with a plurality of grouting pipes. A first pressure monitor is arranged on the connecting pipe, and a second pressure monitor is arranged on the grouting pipe; the grouting device further comprises a slurry storage tank, a slurry pumping opening is formed in the slurry storage tank, and one end of the grouting pump extends into the slurry storage tank through the slurry pumping opening. The device further comprises a control host, the control host is connected with a power source, and the control host is electrically connected with the control switch, the first pressure monitor and each second pressure monitor. According to the device, the air inlet pressure of the grouting pump and the grout supplementing pressure of dynamic hole sealing of a drill hole can be controlled, the pressure drop condition of grout in the grouting pipe is monitored in real time, automatic grout supplementing is carried out, the hole sealing and grout supplementing effect is improved, and labor cost is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal seam gas control equipment, and relates to a multi-borehole dynamic sealing and grouting replenishing device. Background Technique

[0002] At present, the main means of mine gas prevention and control is gas drainage. However, during the coal mine production process, affected by mining disturbances, a large number of cracks will be generated around the boreholes after gas drainage, and air leakage channels will be formed under the influence of drainage negative pressure. In order to solve the problem of borehole air leakage, many experts and scholars have proposed the borehole dynamic sealing technology at present. Through the technical principle of "solid sealing liquid, liquid sealing gas", the sealing slurry is continuously injected into the newly generated cracks of the borehole to achieve the dynamic sealing of the borehole. However, at present, during the dynamic sealing of the borehole, the subsequent grouting after sealing is mostly time-fixed and quantity-fixed grouting, and the cracks around the borehole cannot be filled in time, and the sealing effect is difficult to meet the expected requirements. Therefore, it is urgent to develop a system that can automatically replenish the slurry for dynamically sealed boreholes. Content of the Utility Model

[0003] The purpose of the utility model is to provide a multi-borehole dynamic sealing and grouting replenishing device, which solves the problems of inability to replenish the slurry around the borehole in time and continuous sealing during the dynamic sealing of the borehole in the prior art.

[0004] The technical solution adopted by the utility model is that the multi-borehole dynamic sealing and grouting replenishing device includes a grouting pump, a control switch is arranged on the grouting pump, one end of an air inlet pipe is connected to the control switch, the other end of the air inlet pipe is connected to a compressed air interface, one end of a connecting pipe is connected to the grouting pump, the other end of the connecting pipe is respectively connected to a plurality of grouting pipes, a first pressure monitor is arranged on the connecting pipe, and a second pressure monitor is arranged on the grouting pipe; it also includes a slurry storage tank, a slurry extraction port is opened on the slurry storage tank, and one end of the grouting pump extends into the slurry storage tank through the slurry extraction port; it also includes a control host, the control host is connected to a power supply, and the control host is respectively electrically connected to the control switch, the first pressure monitor, and each second pressure monitor.

[0005] The characteristics of the utility model also lie in that:

[0006] A pressure reducing valve is arranged on the air inlet pipe.

[0007] An electromagnetic valve is arranged on each grouting pipe, and the control host is respectively electrically connected to each electromagnetic valve.

[0008] The control host includes a monitoring unit, the monitoring unit is electrically connected to a judgment unit, the judgment unit is electrically connected to a control unit, the monitoring unit is respectively electrically connected to the first pressure monitor and each second pressure monitor, and the control unit is respectively electrically connected to the control switch and each electromagnetic valve.

[0009] A liquid replenishing port is opened on the slurry storage tank.

[0010] The beneficial effects of the present utility model are as follows:

[0011] The multi-borehole dynamic sealing and grouting replenishment device of the present utility model controls the intake air pressure of the grouting pump by adjusting the pressure reducing valve, and further controls the replenishment pressure of the dynamic sealing of the borehole. After the dynamic sealing of the borehole, the second pressure monitor is used to monitor the slurry pressure in the grouting pipe in real time, and the first pressure monitor is used to monitor the slurry pressure of the grouting pump in real time, so as to judge the decrease of the slurry pressure in the grouting pipe. When the slurry pressure in the grouting pipe is less than the slurry pressure of the grouting pump, automatic grouting replenishment is carried out, which not only improves the effect of sealing and grouting replenishment, but also effectively reduces the labor cost of dynamic sealing and grouting replenishment of the borehole. Description of the Drawings

[0012] Figure 1 is the structural diagram of the multi-borehole dynamic sealing and grouting replenishment device of the present utility model.

[0013] In the figure, 1. Grouting pump, 2. Control switch, 3. Intake air pipe, 4. Compressed air interface, 5. Pressure reducing valve, 6. Slurry storage tank, 7. Slurry suction port, 8. Connecting pipe, 9. Grouting pipe, 10. First pressure monitor, 11. Solenoid valve, 12. Second pressure monitor, 13. Control host, 14. Power supply, 15. Liquid replenishment port, 16. Monitoring unit, 17. Control unit, 18. Judgment unit. Detailed Embodiment

[0014] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments.

[0015] The multi-borehole dynamic sealing and grouting replenishment device, refer to Figure 1, including a grouting pump 1, on which a control switch 2 is provided. One end of an air inlet pipe 3 is connected to the control switch 2, and the other end of the air inlet pipe 3 is connected to a compressed air interface 4. One end of a connecting pipe 8 is connected to the grouting pump 1, and the other end of the connecting pipe 8 is respectively connected to a number of grouting pipes 9. A first pressure monitor 10 is provided on the connecting pipe 8, and the first pressure monitor 10 is used to monitor the grouting pressure of the grouting pump 1. A second pressure monitor 12 is provided on the grouting pipe 9, and the second pressure monitor 12 is used to monitor the slurry pressure of the grouting pipe 9; it also includes a slurry storage tank 6, on which a slurry extraction port 7 is opened. One end of the grouting pump 1 extends into the slurry storage tank 6 through the slurry extraction port 7 to extract slurry from the slurry storage tank 6; it also includes a control host 13, the control host 13 is connected to a power supply 14, and the control host 13 is respectively electrically connected to the control switch 2, the first pressure monitor 10, and each second pressure monitor 12. A pressure reducing valve 5 is provided on the air inlet pipe 3, and the pressure reducing valve 5 can provide a suitable intake pressure for the grouting pump 1 to drive the grouting pump 1 to grout. An electromagnetic valve 11 is provided on each grouting pipe 9, and the electromagnetic valve 11 is used to control the opening and closing of the grouting pipe 9. The control host 13 is respectively electrically connected to each electromagnetic valve 11. The control host 13 includes a monitoring unit 16, the monitoring unit 16 is electrically connected to a judgment unit 18, the judgment unit 18 is electrically connected to a control unit 17, the monitoring unit 16 is respectively electrically connected to the first pressure monitor 10 and each second pressure monitor 12, the control unit 17 is respectively electrically connected to the control switch 2 and each electromagnetic valve 11. The monitoring unit 16 is used to monitor the pressure values of the first pressure monitor 10 and each second pressure monitor 12 and transmit the pressure values to the judgment unit 18. The judgment unit 18 compares the pressure value of the first pressure monitor 10 with the pressure values of each second pressure monitor 12 respectively and transmits the result to the control unit 17. When the pressure of a certain second pressure monitor 12 is less than that of the first pressure monitor 10, the control unit 17 turns on the control switch 2 and the electromagnetic valve 11 on the grouting pipe 9 where the second pressure monitor 12 is located, and then replenishes the hole with slurry; a liquid replenishing port 15 is opened on the slurry storage tank 6, and the liquid replenishing port 15 can replenish slurry to the slurry storage tank 6.

[0016] The working principle of the present utility model is as follows:

[0017] Connect the compressed air interface 4 of the multi - hole dynamic sealing and hole - filling grouting device of the present utility model to the compressed air system of the mine. Turn on the power supply 14, and the control host 13 monitors and compares the pressure values of the first pressure monitor 10 and each second pressure monitor 12 respectively. When the pressure value of a certain second pressure monitor 12 is less than the pressure value of the first pressure monitor 10, the control host 13 turns on the control switch 2, adjusts the pressure reducing valve 5 to provide a suitable intake pressure for the grouting pump 1, so that the grouting pump 1 extracts slurry from the slurry storage tank 6. At the same time, the control host 13 turns on the electromagnetic valve 11 on the grouting pipe 9 where the second pressure monitor 12 is located, and then replenishes the hole with slurry.

[0018] Example 1:

[0019] The multi - drilling dynamic hole - sealing and grout - replenishing device includes a grouting pump 1. A control switch 2 is arranged on the grouting pump 1. One end of an air inlet pipe 3 is connected to the control switch 2, and the other end of the air inlet pipe 3 is connected to a compressed - air interface 4. One end of a connecting pipe 8 is connected to the grouting pump 1, and the other end of the connecting pipe 8 is respectively connected to a number of grouting pipes 9. A first pressure monitor 10 is arranged on the connecting pipe 8, and a second pressure monitor 12 is arranged on the grouting pipe 9; It also includes a slurry storage tank 6. A slurry suction port 7 is opened on the slurry storage tank 6, and one end of the grouting pump 1 extends into the slurry storage tank 6 through the slurry suction port 7; It also includes a control host 13. The control host 13 is connected to a power supply 14. The control host 13 is electrically connected to the control switch 2, the first pressure monitor 10, and each second pressure monitor 12 respectively. An electromagnetic valve 11 is arranged on each grouting pipe 9, and the control host 13 is electrically connected to each electromagnetic valve 11 respectively. The control host 13 includes a monitoring unit 16. The monitoring unit 16 is electrically connected to a judgment unit 18, and the judgment unit 18 is electrically connected to a control unit 17. The monitoring unit 16 is electrically connected to the first pressure monitor 10 and each second pressure monitor 12 respectively. The control unit 17 is electrically connected to the control switch 2 and each electromagnetic valve 11 respectively. A liquid - supplementing port 15 is opened on the slurry storage tank 6.

[0020] Example 2:

[0021] The multi - drilling dynamic hole - sealing and grout - replenishing device includes a grouting pump 1. A control switch 2 is arranged on the grouting pump 1. One end of an air inlet pipe 3 is connected to the control switch 2, and the other end of the air inlet pipe 3 is connected to a compressed - air interface 4. One end of a connecting pipe 8 is connected to the grouting pump 1, and the other end of the connecting pipe 8 is respectively connected to a number of grouting pipes 9. A first pressure monitor 10 is arranged on the connecting pipe 8, and a second pressure monitor 12 is arranged on the grouting pipe 9; It also includes a slurry storage tank 6. A slurry suction port 7 is opened on the slurry storage tank 6, and one end of the grouting pump 1 extends into the slurry storage tank 6 through the slurry suction port 7; It also includes a control host 13. The control host 13 is connected to a power supply 14. The control host 13 is electrically connected to the control switch 2, the first pressure monitor 10, and each second pressure monitor 12 respectively. A pressure - reducing valve 5 is arranged on the air inlet pipe 3. An electromagnetic valve 11 is arranged on each grouting pipe 9, and the control host 13 is electrically connected to each electromagnetic valve 11 respectively. The control host 13 includes a monitoring unit 16. The monitoring unit 16 is electrically connected to a judgment unit 18, and the judgment unit 18 is electrically connected to a control unit 17. The monitoring unit 16 is electrically connected to the first pressure monitor 10 and each second pressure monitor 12 respectively. The control unit 17 is electrically connected to the control switch 2 and each electromagnetic valve 11 respectively.

[0022] Example 3:

[0023] Multi-drilling dynamic hole-sealing grouting device, including a grouting pump 1, a control switch 2 is arranged on the grouting pump 1, one end of an air inlet pipe 3 is connected to the control switch 2, the other end of the air inlet pipe 3 is connected to a compressed air interface 4, one end of a connecting pipe 8 is connected to the grouting pump 1, the other end of the connecting pipe 8 is respectively connected to a number of grouting pipes 9, a first pressure monitor 10 is arranged on the connecting pipe 8, and a second pressure monitor 12 is arranged on the grouting pipe 9; it also includes a slurry storage tank 6, a slurry suction port 7 is opened on the slurry storage tank 6, and one end of the grouting pump 1 extends into the slurry storage tank 6 through the slurry suction port 7; it also includes a control host 13, the control host 13 is connected to a power supply 14, the control host 13 is respectively electrically connected to the control switch 2, the first pressure monitor 10, and each second pressure monitor 12, a pressure reducing valve 5 is arranged on the air inlet pipe 3, an electromagnetic valve 11 is arranged on each grouting pipe 9, the control host 13 is respectively electrically connected to each electromagnetic valve 11, and a liquid supplement port 15 is opened on the slurry storage tank 6.

Claims

1. A multi-drilling dynamic sealing and grouting device, characterized in that: The invention comprises a grouting pump (1), wherein the grouting pump (1) is provided with a control switch (2), wherein the control switch (2) is connected to one end of an air inlet pipe (3), wherein the other end of the air inlet pipe (3) is connected to a compressed air interface (4), wherein the grouting pump (1) is connected to one end of a connecting pipe (8), wherein the other end of the connecting pipe (8) is respectively connected to a plurality of grouting pipes (9), wherein a first pressure monitor (10) is provided on the connecting pipe (8), and wherein a second pressure monitor (12) is provided on the grouting pipe (9); further comprising a slurry storage tank (6), wherein a slurry extraction port (7) is provided on the slurry storage tank (6), and one end of the grouting pump (1) extends into the slurry storage tank (6) through the slurry extraction port (7); further comprising a control host (13), wherein the control host (13) is connected to a power supply (14), and wherein the control host (13) is respectively electrically connected to the control switch (2), the first pressure monitor (10), and each of the second pressure monitors (12).

2. The multi-drilling dynamic sealing and grouting device according to claim 1, characterized in that: The air inlet pipe (3) is provided with a pressure reducing valve (5).

3. The multi-drilling dynamic sealing and grouting device according to claim 1, characterized in that: Each of the grouting pipes (9) is provided with a solenoid valve (11), and a control host (13) is electrically connected to each of the solenoid valves (11).

4. The multi-drilling dynamic sealing and grouting device according to claim 3 is characterized in that: The control host (13) comprises a monitoring unit (16), the monitoring unit (16) is electrically connected to a judgment unit (18), the judgment unit (18) is electrically connected to a control unit (17), the monitoring unit (16) is electrically connected to the first pressure monitor (10) and each second pressure monitor (12), respectively, and the control unit (17) is electrically connected to the control switch (2) and each solenoid valve (11), respectively.

5. The multi-drilling dynamic sealing and grouting device according to claim 1, characterized in that: The slurry storage tank (6) is provided with a liquid replenishing port (15).

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