What Is a Compressor Station?

The air compressor station refers to a mine compressed air place that supplies compressed gas for mine pneumatic equipment and pneumatic tools. Inside the station are air compressors, cooling systems for air compressors, electrical equipment, and auxiliary equipment for air compressors (ie, air filtration devices and compressed air storage tanks). The air compressor station should choose a reasonable location, determine a reasonable air supply volume, and determine the type, number of air compressors and reasonable station room layout based on the required air supply volume.

The air compressor station refers to a mine compressed air place that supplies compressed gas for mine pneumatic equipment and pneumatic tools. The station is equipped with air compressors, cooling systems for air compressors, electrical equipment and auxiliary equipment for air compressors (i.e.

The air compressor station should be located near the load center and the main gas point on the ground, and it is convenient for power supply, water supply, equipment handling and clean air, and well-ventilated places. It is required to emit flammable, corrosive, toxic gases and dust, etc. Material sites, and located on the upwind side of the wind direction on these sites, should be far from 150m away from the waste rock yard, chimney, mine air shaft, etc. The air compressor station for centralized gas supply for open-air mines should be located outside the blast danger boundary When the air supply distance of the mine is relatively long, the air compressor station can also be set up in a place where the fresh air is smooth and convenient for transportation near the main transportation lane under the mine.

The maximum air supply of the air compressor station is determined according to the air consumption of the pneumatic equipment and pneumatic equipment and pneumatic tools used in the whole mine or zone. ^[2]

The pneumatic pressure of mining pneumatic equipment and pneumatic tools is generally 0.4-0.7MPa, and the air compressor station for centralized or district air supply generally uses L-type or symmetrical balanced reciprocating piston air compression with a pressure of 0.7-0.8MPa. Machine, large-scale mines can use centrifugal type, large-scale mines in plateau areas can also use screw type, in order to facilitate installation and movement, small mines or regional air compressor stations can use baseless quick-install reciprocating piston air compressors. To achieve the purpose of saving fuel, some mines use non-lubricated air compressors. At the same air compressor station, air compressors of the same model and the same manufacturer should be used as much as possible to facilitate the exchange of spare parts and accessories.

The number of air compressors normally working should be determined according to the total exhaust volume of the air compressors working at the same time is not less than the required air supply. The number of standby machines should be determined according to the discharge capacity of the air compressor being 20% -50% of the total air supply, but not less than one ^[3]

There are two types of ground and underground stations.

(1) Ground station room. The water-cooled air compressor station room is composed of the main room and the auxiliary room. An air compressor, a main engine cooler and a lubricating oil system are installed in the upper machine room. Auxiliary rooms include electrical equipment room, pump room, storage room and duty room. There are also cold and hot water pumps in the cooling water supply system. High and low voltage electrical control cabinets are arranged at one end of the main machine room without auxiliary room. The air storage tank and the suction muffler filter should be arranged on the outdoor shady surface. A centralized maintenance site can be set up in the station, or the channel around the unit can be appropriately widened.

(2) Underground station building. It consists of the main chamber, the auxiliary chamber and the passage. The single unit exhaust of the air compressor in the station should not exceed 20m ³ / min. In order to reduce the cell width, the unit should be arranged longitudinally. The cooling water supply tank of the air compressor should be located at one end above the main engine room of the upper engine room. The gas storage tank should be installed in the auxiliary chamber ^[2] .