The underground pump is one of the main equipment in coal mine production. The remote control and monitoring of the underground pump house is an important part of the comprehensive automation construction. At present, in the drainage system design of the mine pump house, a number of multistage centrifugal pumps are generally set up, one is used, one is prepared and one is repaired. These pumps have high voltage, high power and complex operating conditions, and it is difficult to achieve real-time monitoring manually. The underground drainage monitoring system of coal mine takes the programmable controller as the control core, and monitors the working state of each equipment of the underground drainage system through various advanced and reliable sensors, protection devices and electric actuators, so as to realize the automatic control of the underground pump drainage system. The system integrates computer technology and automatic control technology, and is applied to the full automation of underground drainage in coal mine and remote monitoring of the ground. According to the actual situation of the mine, automatic transformation can be carried out on the basis of the original facilities, so that the equipment can automatically run and self-diagnose in the case of no interference. At the same time, through the intelligent scheduling algorithm according to the water level of the water tank, the running time of the water pump, the coal mine power load and other information, all the pumps in the pump room are centralized management and unified scheduling, so that each pump can be balanced use and achieve the best working state, effectively extend the service life of the unit on the basis of energy saving and emission reduction, and increase the efficiency basis. Further reduce the labor intensity of staff, and improve the intelligent level and operation management level of coal mines on the basis of safe production.

The automatic fire extinguishing device in mine area is suitable for the underground coal mine with explosive dangerous gas and coal dust, mainly used in the shaft, belt conveyor, electromechanical room, substation, gas extraction room, underground inclined roadway lifting electrical equipment or cable and other places with potential fire hazards; The device detects the flame or smoke signal in time at the initial stage of the fire, and extinguishes the fire source in time to prevent a wider range of more serious fire accidents caused by it. The device can be equipped with different terminal equipment according to the type of fire within the installation protection range, which can put out mechanical, electrical and chemical fires. The water, dry powder and heptafluoropropane used in the fire extinguishing device have no corrosion to the protective substances, and can quickly extinguish the fire source in the area in the way of full flooding.

The automatic control system of coal mine air compressor takes PLC as the control core, and automatically collects performance parameters such as exhaust pressure, exhaust temperature, lubricating oil pressure, lubricating oil temperature, cooling water pressure, cooling water temperature, as well as production parameters such as equipment start and stop, power supply status, etc., which can control the start and stop of equipment, and form a whole communication network for the entire site. Combined with remote monitoring and fault diagnosis technology and real-time database, the compressed air system is more integrated, advanced, stable and reliable.

Based on the national standard "Test method for aerodynamic performance of fan" and the coal industry standard "Test method for field performance parameters of main fan used in coal mine", the system uses industrial computer detection technology to continuously measure and process the running state of large fan used in coal mine. Various data on fan operation status are provided in a variety of ways.