A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for cemented filling of goaf by using all-lithium waste
The invention provides a method for cemented filling of a goaf by using all-lithium waste, and belongs to the technical field of solid waste comprehensive utilization and mine filling, mining waste rock and spodumene tailings are used as filling aggregates, quick lime modified water quenching lithium slag is used as a cementing agent, and the filling aggregates and the cementing agent are mixed with clear water according to a certain proportion to form homogeneous filling slurry; and pumping to an underground goaf. According to the invention, industrial solid wastes generated in the whole life cycle of lithium metal production are fully utilized, cement is completely replaced by the modified lithium slag, meanwhile, the conveying performance of the filling slurry is relatively good, and the strength of a filling body in each age meets the filling requirement due to the doping of part of mining waste rocks, so that the industrial solid wastes are comprehensively treated, and meanwhile, the production cost is reduced. And a new thought is provided for treating the underground goaf.
本发明提供一种全锂废料用于采空区胶结充填的方法，属于固废综合利用及矿山充填技术领域，通过将采掘废石及锂辉石尾砂作为充填骨料，生石灰改性后的水淬锂渣作为胶结剂，以一定比例与清水混合后形成均质充填料浆后，泵送至井下采空区。本发明充分利用了锂金属生产全生命周期所产生的工业固废，用改性锂渣完全取代水泥的同时，充填料浆输送性能较好，且由于掺入了部分采掘废石而使得充填体各龄期强度满足充填要求，从而在综合处理工业固废的同时，为处理井下采空区提供新的思路。
Method for cemented filling of goaf by using all-lithium waste
The invention provides a method for cemented filling of a goaf by using all-lithium waste, and belongs to the technical field of solid waste comprehensive utilization and mine filling, mining waste rock and spodumene tailings are used as filling aggregates, quick lime modified water quenching lithium slag is used as a cementing agent, and the filling aggregates and the cementing agent are mixed with clear water according to a certain proportion to form homogeneous filling slurry; and pumping to an underground goaf. According to the invention, industrial solid wastes generated in the whole life cycle of lithium metal production are fully utilized, cement is completely replaced by the modified lithium slag, meanwhile, the conveying performance of the filling slurry is relatively good, and the strength of a filling body in each age meets the filling requirement due to the doping of part of mining waste rocks, so that the industrial solid wastes are comprehensively treated, and meanwhile, the production cost is reduced. And a new thought is provided for treating the underground goaf.
本发明提供一种全锂废料用于采空区胶结充填的方法，属于固废综合利用及矿山充填技术领域，通过将采掘废石及锂辉石尾砂作为充填骨料，生石灰改性后的水淬锂渣作为胶结剂，以一定比例与清水混合后形成均质充填料浆后，泵送至井下采空区。本发明充分利用了锂金属生产全生命周期所产生的工业固废，用改性锂渣完全取代水泥的同时，充填料浆输送性能较好，且由于掺入了部分采掘废石而使得充填体各龄期强度满足充填要求，从而在综合处理工业固废的同时，为处理井下采空区提供新的思路。
Method for cemented filling of goaf by using all-lithium waste
一种全锂废料用于采空区胶结充填的方法
CHEN QIUSONG (author) / WANG DAOLIN (author) / WANG YUNMIN (author) / ZHANG QINLI (author) / QI CHONGCHONG (author) / FENG YAN (author) / TAO YUNBO (author) / YUAN YUHANG (author)
2022-05-27
Patent
Electronic Resource
Chinese
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