摘要
为解决无压给料三产品重介质旋流器在分选过程中出现精煤产品带矸的问题,贺西煤矿选煤厂采取了改善原煤润湿效果、保证入料压力、降低悬浮液黏度以及控制原煤中杂物等措施。生产实践表明,上述措施可使精煤产品带矸率降低到0.3%以下,杜绝了可见矸,满足了生产需要。
In order to tackle the problem concerning the misplacement of refuse in clean coal product of gravity-fed 3-product H.M.cyclone,a series of measures including sufficient wetting of raw coal,ensuring feed inlet pressure,reduction of viscosity of medium suspension and preventing foreign matters from entering raw coal feed are adopted.Practice shows that the adoption of the measures can meet the production requirement as the percentage of refuse in clean coal product is reduced to less than 0.3%with no presence of any visible refuse pieces.
作者
李栋
LI Dong(Hexi Coal Mine of Shanxi Fenxi Mining Group Co. Ltd., Lyuliang 033300, China)
出处
《选煤技术》
CAS
2020年第6期63-66,共4页
Coal Preparation Technology
关键词
重介选煤
精煤产品带矸
原煤润湿
入料压力
悬浮液黏度
精煤产品带矸率
heavy medium separation of coal
refuse misplaced into clean coal product
raw coal wetting
feed inlet pressure
viscosity of medium suspension
percentage of refuse in clean coal product