我厂是1970年投产的简易洗煤厂,主要设备是四台台吉式跳汰机。近年来,我矿原煤产量大幅度增加,原煤质量变坏,原煤可选性属极难选煤,矸石含量高达40%以上,-0.5毫米粉煤灰分高达34—36%(表1和图1),这给跳汰机洗 Our factory was put into operation in 1970, a simple coal-washing plant, the main equipment is four Taiji Ji-jig. In recent years, the output of raw coal in mine has risen sharply, the quality of raw coal has deteriorated, the selectivity of raw coal is extremely difficult to select coal, the content of gangue is over 40%, and the content of -0.5mm fly ash reaches as high as 34-36% (Table 1 and Figure 1 ), Which gives machine jig