Development of Automatic Monitoring System for Heat Recovery of Pressurised Fan in Mines
Aiming at the problems of resource waste and equipment failure caused by the large amount of heat energy generated during the operation of pressurised fans,an automatic monitoring system for heat energy recovery of pressurised fans in mines is developed.Firstly,it clarifies the basic composition of the heat energy recovery system of the mine pressure fan,including the heat energy recovery system and the heat energy utilisation system,and designs the hardware structure of the heat energy recovery automatic monitoring system,and according to the actual monitoring requirements,it designs the software for the heat energy recovery and utilisation monitoring sub-system,the automatic monitoring sub-system of the pressure fan,and the constant temperature and constant pressure water supply sub-system;lastly,it shows that the automatic monitoring system can be stably operated and can recover a large amount of heat energy,which can lead to equipment failures.Finally,through the practical application in coal mines,it is shown that the automatic monitoring system can operate stably and recover 245 t/d of hot water at a temperature of 46 ℃,and the total heat recovered is calculated to be 29,427,200 kJ/d,which is equivalent to the quality of coal combustion of 2.43 t/d,which greatly reduces the economic cost and improves the production efficiency.
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