CN-117823224-B - Emergency water level adjusting system and method for central water sump of coal mine

Abstract

The invention belongs to the technical field of mine drainage, and discloses a system and a method for adjusting emergency water level of a central water sump of a coal mine. The emergency water level regulating system for the central water sump of the coal mine comprises a pneumatic shield-shaped gate, an information acquisition unit and a control unit, wherein the pneumatic shield-shaped gate is arranged at an inlet of the water sump, the water sump is divided into a main water sump roadway and an auxiliary water sump roadway, a first waterproof airtight door is arranged in the main water sump roadway, a second waterproof airtight door is arranged in the auxiliary water sump roadway, a water passage roadway is arranged between the main water sump roadway and the auxiliary water sump roadway, a third waterproof airtight door is arranged in the water passage roadway, the tail ends of the main water sump roadway and the auxiliary water sump roadway are connected with a central pump room, a drainage roadway is arranged between a drainage roadway and the auxiliary water sump roadway, and a fourth waterproof airtight door is arranged in the drainage roadway. The control unit can control the opening or closing of different waterproof airtight doors and pneumatic shield-shaped gates, so as to control water inflow into the water bin and the central pump room.

Inventors

• GAO ZHONGXIANG
• Bin Haixiong
• Wu Shuoguo
• BIAN JUN
• MENG FANKUI
• ZHAO GUANGSHE
• SHAO XIAOWEI
• Teng Hailin
• GUO FEI
• LI MENGLEI
• WANG YONG
• LI CHANGJIE
• WANG JIANFENG
• WANG GONGHUA
• LI WENDA
• JIANG HAI
• LIU JIAN
• XU DONG
• WANG MINGTAO

Assignees

• 兖矿能源集团股份有限公司

Dates

Publication Date

20260512

Application Date

20240129

Claims (9)

1. 1. The emergency water level regulating system for the central water sump of the coal mine is characterized by comprising a pneumatic shield-shaped gate, an information acquisition unit and a control unit; The pneumatic shield gate is arranged at the inlet of the water sump, wherein the water sump is divided into a main water sump tunnel and an auxiliary water sump tunnel, a first waterproof airtight door is arranged in the main water sump tunnel, a second waterproof airtight door is arranged in the auxiliary water sump tunnel, a water through tunnel is arranged between the main water sump tunnel and the auxiliary water sump tunnel, a third waterproof airtight door is arranged in the water through tunnel, and the tail ends of the main water sump tunnel and the auxiliary water sump tunnel are connected with a central pump room; a drainage roadway is arranged between the drainage roadway and the auxiliary water sump roadway, and a fourth waterproof airtight door is arranged on the drainage roadway; The information acquisition unit comprises a liquid level sensor and a flow sensor, wherein the liquid level sensor is arranged in the main sump roadway, the auxiliary sump roadway and the drainage roadway, the liquid level sensor is used for monitoring water level values of the main sump roadway, the auxiliary sump roadway and the drainage roadway, the flow sensor is arranged on a water pump of the central pump room, and the flow sensor is used for monitoring water discharge of the water pump; the information acquisition unit transmits the acquired water level values in the main water sump roadway, the auxiliary water sump roadway and the drainage roadway and the water discharge of the water pump to the control unit; the control unit is connected with the control ends of the first waterproof airtight door, the second waterproof airtight door, the third waterproof airtight door, the fourth waterproof airtight door, the pneumatic shield-shaped gate and the water pump.
2. 2. A coal mine central sump emergency water level adjustment system according to claim 1, wherein, A fifth waterproof airtight door is arranged at the channel connected with the central pump room, and a sixth waterproof airtight door is arranged at the channel connected with the central substation; The control unit is connected with the control ends of the fifth waterproof airtight door and the sixth waterproof airtight door.
3. 3. The coal mine central sump emergency water level adjustment system of claim 2, wherein the information acquisition unit further comprises a video/audio monitor, a vibration sensor and a temperature sensor; The central pump room, the central substation, the pneumatic shield-shaped gate, the first waterproof airtight door, the second waterproof airtight door, the third waterproof airtight door, the fourth waterproof airtight door, the fifth waterproof airtight door and the sixth waterproof airtight door are all provided with video/audio monitors, and the video/audio monitors are used for collecting image/audio information and transmitting the collected video/audio information to the control unit; The vibration sensor and the temperature sensor are arranged at the equipment of the central pump room and the central substation and are connected with the control unit, wherein the vibration sensor is used for collecting vibration values of the equipment of the central pump room and the central substation and transmitting the vibration values to the control unit, and the temperature sensor is used for collecting temperature values of the equipment of the central pump room and the central substation and transmitting the temperature values to the control unit.
4. 4. A coal mine central sump emergency water level adjustment system according to claim 3, wherein, A plurality of warning devices are arranged in the plurality of tunnels and comprise warning lamps and buzzers, and the warning lamps have different colors and/or flashing frequencies.
5. 5. The emergency water level regulating system for the central water sump of the coal mine as claimed in claim 4, wherein the control unit comprises an upper computer and a lower computer, and the upper computer is connected with the lower computer through a communication module; the lower computer is connected with the liquid level sensor, the flow sensor, the vibration sensor, the temperature sensor, the video/audio monitor and the warning device.
6. 6. A coal mine central sump emergency water level adjustment system according to claim 5, wherein, The communication module comprises a ground switch, an underground switch and an Ethernet ring; The ground switch and the underground switch are connected and communicated through an Ethernet ring, the lower computer is connected with the underground switch, and the upper computer is connected with the ground switch.
7. 7. A method for adjusting the emergency water level of a central water sump of a coal mine is applied to the emergency water level adjusting system of the central water sump of the coal mine, which is characterized in that, Setting water level conditions of a water bin into three water level lines, namely a low water level line, a medium water level line and a warning water level line, wherein the water level value of the low water level line is less than the water level value of the medium water level line and less than the water level value of the warning water level line; When all the liquid level sensors monitor that the water level value of the water sump is smaller than the water level value of the low water level line, the control unit controls the third waterproof airtight door to be closed, and the pneumatic shield-shaped gate, the first waterproof airtight door, the second waterproof airtight door, the fourth waterproof airtight door, the fifth waterproof airtight door and the sixth waterproof airtight door are all opened; When at least one liquid level sensor monitors that the water level value of the water bin is greater than or equal to the water level value of the low water level line, the control unit operates n1 water pumps to drain water; when at least one liquid level sensor monitors that the water level value of the water sump is greater than or equal to the water level value of the medium water level line, the control unit controls the second waterproof airtight door to be closed, the pneumatic shield-shaped gate, the first waterproof airtight door, the third waterproof airtight door, the fourth waterproof airtight door, the fifth waterproof airtight door and the sixth waterproof airtight door are all opened, and n2 water pumps are operated to drain water; When at least one liquid level sensor monitors that the water level value of the water sump is greater than or equal to the water level value of the warning water level line, the control unit controls the first waterproof airtight door and the third waterproof airtight door to be opened, the pneumatic shield-shaped gate, the second waterproof airtight door, the fourth waterproof airtight door, the fifth waterproof airtight door and the sixth waterproof airtight door are all closed, and N water pumps are operated to drain water; when the pneumatic shield gate lifts up the manger plate, the clearer water gushing in upper portion can get into main sump tunnel, and the impurity of subsidence is left in the bottom to avoid when the water gushing volume is great, water gushing carries a large amount of impurity and then central pump house in order to block up the water pump.
8. 8. The method for adjusting the emergency water level of the central water sump of the coal mine according to claim 7, wherein, The control unit controls the warning lamp to emit light with different colors and/or flashing frequencies to warn according to water level values corresponding to different water level conditions of the water sump; When the water level value corresponding to the water level condition is greater than or equal to the water level value of the warning water level line, the buzzer alarm can make sound to warn.
9. 9. The method for adjusting the emergency water level of the central water sump of the coal mine according to claim 7, wherein the control unit controls the warning lamps to emit lights with different colors to warn according to data monitored by the video/audio monitor, the flow sensor, the vibration sensor and the temperature sensor.

Description

Emergency water level adjusting system and method for central water sump of coal mine Technical Field The invention belongs to the technical field of mine drainage, and particularly relates to a system and a method for adjusting emergency water level of a central water sump of a coal mine. Background The underground drainage system is one of the main working systems in the coal mine production process, and has the main functions of draining water gushes underground in the coal mine to the ground so as to ensure the safe production environment of the mine. The central power substation and the central pump house are key parts for normal operation of an underground drainage system, wherein the central pump house is connected with a water sump, a water distributing gate is arranged at the joint of the central pump house and the water sump, when a large water disaster accident occurs (the central water sump is full and the water level of the water sump continuously rises), the water inflow amount of mine water inflow is larger than the drainage capacity of the drainage system, and when the water level is higher than the slope changing point of the water sump (the elevation of a water blocking wall of a water absorbing well in the pump house), water inflow possibly flows into the central pump house through the water absorbing well, so that serious accidents are caused. However, in the prior art, after a water disaster accident occurs in a mine, the water discharge of a pump is difficult to be matched with the water distribution quantity of a gate valve by controlling a water distribution gate, when water is distributed excessively in a water bin, water gushes can overflow a water blocking wall to cause water inflow of a pump house, when the water is distributed insufficiently in the water bin, the water pump cannot continuously discharge, and even empty suction and dry burning of the water pump are seriously caused, so that a drainage system is paralyzed. The operability of adjusting the water distribution gate is poor, if the problem that water from a water sump is burst into a central pump room is not solved, the waterproof airtight gate shape of the central pump room is the same as the dummy. Disclosure of Invention The invention aims to provide an emergency water level regulating system and an emergency water level regulating method for a central water sump of a coal mine, so as to control the water inflow of the water sump into a central pump room. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: the emergency water level regulating system for the central water sump of the coal mine comprises a pneumatic shield-shaped gate, an information acquisition unit and a control unit; The pneumatic shield-shaped gate is arranged at the inlet of the water sump, wherein the water sump is divided into a main water sump tunnel and an auxiliary water sump tunnel, a first waterproof airtight door is arranged in the main water sump tunnel, and a second waterproof airtight door is arranged in the auxiliary water sump tunnel; a drainage roadway is arranged between the drainage roadway and the auxiliary water sump roadway, and a fourth waterproof airtight door is arranged on the drainage roadway; the information acquisition unit comprises a liquid level sensor and a flow sensor, the liquid level sensor is arranged in the main sump roadway, the auxiliary sump roadway and the drainage roadway, the liquid level sensor is used for monitoring water level values of the main sump roadway, the auxiliary sump roadway and the drainage roadway, the flow sensor is arranged on a water pump of the central pump room, and the flow sensor is used for monitoring water discharge of the water pump; The information acquisition unit transmits the acquired liquid level data in the main water sump roadway, the auxiliary water sump roadway and the drainage roadway and the flow data of the water pump to the control unit; the control unit is connected with the control ends of the first waterproof airtight door, the second waterproof airtight door, the third waterproof airtight door, the fourth waterproof airtight door, the pneumatic shield-shaped gate and the water pump. Preferably, a fifth waterproof airtight door is arranged at the channel connected with the central pump room, and a sixth waterproof airtight door is arranged at the channel connected with the central substation; the control unit is connected with the control ends of the fifth waterproof airtight door and the sixth waterproof airtight door. Preferably, the information acquisition unit further comprises a video/audio monitor, a vibration sensor and a temperature sensor; The central pump room, the central substation, the pneumatic shield-shaped gate, the first waterproof airtight door, the second waterproof airtight door, the third waterproof airtight door, the fourth waterproof airtight door, the fifth waterproof airtight door a