Gas control in surface coal bunkers is an important work in coal mine safety production management,with the main purpose of preventing gas accumulation and ensuring the safety of the working environment.Coal Preparation Plant of Liyang Coal Industry Co.,Ltd.has a total of 7 types of surface coal bunkers.As a mine with high gas outburst,the surface coal bunkers also need to be prevented from exceeding gas limits.The original design required at least one fan to operate continuously above and below each coal bunker to reduce CH4 volume fraction,resulting in high electricity consumption.Through multiple on-site data collection and analysis,methane sensors,KJ73N system and RSLogix5000 system were combined to form an advanced gas interval control system.Among them,10 fans were set to start and stop,greatly reducing energy consumption and maintenance costs,while ensuring that the CH4 volume fraction in the coal bunkers did not exceed the standard.
surface coal bunkergas managementinterval controlRSlogix5000 system
万方数据
维普
