论文部分内容阅读
介绍了用选择性絮凝对煤中可燃体和非可燃体进行分离的煤泥分选方法。在对大屯、八一、大武口等多个煤样进行大量试验后，得出选择性絮凝方法可用于制取超纯精煤和对极细粒煤泥进行分选，并且具有较好的选择性。制取超纯精煤时，灰分＜３％，可燃体回收率和产率均在９０％左右，最高分别为９５．８８％和９４％。对极细粒煤泥分选，精煤灰分一般为１２％～１３％，可燃体回收率可在９０％以上。因此，是一种较有前途的方法，可用于制取超纯精煤，并为煤泥分级浮选中，细粒部分的处理方法开辟了一条新途径。
The slime separation method for separating combustible and non-combustible components in coal by selective flocculation is introduced. After extensive tests on many coal samples such as Datun, Bayi and Dawukou, it is concluded that the selective flocculation method can be used to produce ultra-pure coal and to classify very fine coal slime and has good Selective. Preparation of ultra-pure coal, ash <3%, combustible body recovery and yield were about 90%, the highest were 95.88% and 94%. On the very fine slime sorting, ash content of fine coal is generally 12% ~ 13%, combustible body recovery rate of 90% or more. Therefore, it is a promising method that can be used to make ultra-pure coal, and opens up a new way for the treatment of fine fraction in slime flotation of slime.