煤矿区固体废弃物资源化利用技术分析

打开文本图片集

中图分类号：TD849 文献标识码：A 文章编号：1008-9500（2026）03-0131-03

DOI： 10.3969/j.issn.1008-9500.2026.03.040

Analysis of Solid Waste Resource Utilization Technology in Coal Mining Areas

YANGJianqiang 1，2

（1.ChinaCoalTechnology&EngineeringGroupEcologicalEnvironmentTechnologyCo.，Ltd.，Beijing10ool3，China;

2.ChinaCoalTchnolgy&EngineringGroup（Shaanxi）ResourceRecylingReseachIstituteCotd.，Yulin9Cina）

Abstract：Inorder topromotetheresourceutilizationofsolid wasteincoal mining areas，the physicaland chemical propertiesofcoal gangueandflyashareanalyzed，and pre-treatment technologyparameterssuchasscreeningandcrushing are studied，and conversion technologies suchas building material preparationandbackfillminingarealsoexplored. Theresearch results indicatethatthecompressive strength of sintered bricks reaches15.2MPa，theflexural strength is 2.8 MPa，and the water absorption rate is 12% ，all meeting the design requirements.The 28 d compressive strength of backfill materials is 3.5MPa ，the bonding strength is 0.8MPa ，the backfilling rate in goaf reaches 95% ，and the roof subsidence is controlled within 50mm ，all complying with the design standards.These findings can provide technical references for the resource utilization of solid waste in coal mining areas.

Keywords： coal mining area; solid waste; coal gangue; fly ash; pre-treatment technology

煤矿区固体废弃物主要包括煤矸石、粉煤灰与煤泥，长期堆存不仅占用土地资源，还会引发土壤重金属污染、地下水渗漏等环境问题[]。（剩余3618字）