关键词: 深井采矿, 掘进巷道, 热湿交换, 热害控制, PLC

Abstract: Based on thermal disaster control in deep mining,a set of metal mine deep mining roadway heat exchange simulation test platform was designed.According to the similarity theory,the underground excavation roadway is simplified into a cuboid in the test platform.All kinds of underground heat sources were simulated by electro heating film,and downhole high humidity environment were simulated by humidification with humidifier.The refrigerating unit is composed of refrigerating units,air cooler and cooling air duct.The test platform adopts Siemens 300PLC system for real-time monitoring and remote operation,and for real-time data acquisition of process parameters in operation of equipment,and production process.The data collected will be transmitted to the upper computer screen.According to the process requirements,the upper computer is used to make automatic control and operation on equipment,process,and process parameters.The test platform can simulate the real heat and moisture exchange environment in the laboratory and also simulate the change law among tunnel flow field,temperature field and humidity field.It can be used to investigate the cooling effect factor for the cooling system matching optimization and cold in the distribution.It has good practical significance and application value to solve the current problems in deep mining.

Key words: Deep mining, Excavation roadway, Heat and humidity exchange, Thermal disaster control, PLC