Study of the ways for making comprehensive utilization of gangue and refuse produced by coal mines under Kailuan(Group)Lim-ited Liability Corporation
KONG Suli
ZHANG Jia
Abstract：The difference ways for making use of gangue and refuse place different requirements on their physiochemical properties and mineral compositions,and differ in environmental impacts.Analysis of the physiochemical properties of the classified gangue and refuse samples,such as the chemical and mineral com-positions,contents of heavy metals,as well as proximate analysis are conducted.Analysis shows that the gangue and refuse of different sources exhibit different characteristics;and the waste produced by development separa-tions and the handpicked waste can be directly used as backfill of subsided area or for underground stowing while the refuse coming from coal cleaning operations is suitable for use as building material,biological bacteri-al manure or for land reclamation.The study is made based on the requirements placed on the technologies for comprehensive utilization of such waste currently available and in line with the actual needs of coal mines.Through the study,the ways for making comprehensive utilization of the waste produced by different mines of Kailuan Corporation are determined,allowing the gangue and refuse to be utilized on a differentiated basis ac-cording to quality and grade.
Keywords：comprehensive utilization of solid wasteganguephysiochemical propertyhigh-value-added use of wastequality and grade
Publication Date：2024-12-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 48-52 )