Research and application of intelligent coal preparation system based on laser technology
In order to solve the problems of low coal preparation efficiency and coal resource waste in the existing coal preparation process in Wangjialing Coal Preparation Plant of China Coal Huajin Group Co.,Ltd.,combined with the actual production status of Wangjialing Coal Preparation Plant,an intelligent coal preparation technology based on laser coal preparation method was studied.Using a laser detection device to analyze and calculate the gray value of raw coal,precise identification of clean coal and gangue was achieved,and physical separation of clean coal and gangue was achieved by a PLC system controls air pressure separation device,the intelligent cyclic coal preparation was carried out.The 30-day engineering test conducted at Wangjialing Coal Preparation Plant showed that compared with traditional coal preparation technology,the application of intelligent coal preparation technology not only improved coal preparation efficiency by 18.3%,but also saved 20.38%of coal resources and reduced labor input by 21 people.Taking into account the overall construction cost,it directly created a net profit of 84 yuan per ton and achieved good social and economic benefits.
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