吕家坨矿矸石破碎系统的优化改造  

Renovation of LYUjiatuo Coal Mine′s gangue crushing system

作　　者：郝铭 李朋 HAO Ming;LI Peng(Chinese Institute of Coal Science,Beijing 100013,China;CCTEG Tangshan Research Institute Co.Ltd.,Tangshan 063012,China;Hebei Province Coal Preparation Technology Innovation Center,Tangshan 063012,China)

机构地区：[1]煤炭科学研究总院,北京100013 [2]中煤科工集团唐山研究院有限公司,河北唐山063012 [3]河北省煤炭洗选技术创新中心,河北唐山063012

出　　处：《选煤技术》2024年第6期53-56,共4页Coal Preparation Technology

基　　金：中煤科工集团唐山研究院有限公司技术创新基金项目(KJ-2023-JS-09,KJ-2023-JS-18)。

摘　　要：吕家坨矿矸石破碎系统破碎能力低、能耗高,生产中还存在厂房振动大、设备故障率高等问题。为有效解决上述问题,吕家坨矿将矸石破碎工艺由“先破后筛”改进为“先筛后破”,并将一级破碎机由颚式破碎机更换为分级破碎机。优化改造后,系统破碎能力提升了67.74%,破碎能耗降低了67%,堵塞故障频次减少了75.4%,有效减少了检修维护工作量。吕家坨矿矸石破碎系统的优化改造实践可为其他企业矸石等硬岩物料破碎系统设计改造提供有益参考。The issues existing in the LYUjiatuo Mine′s crushing system involve low crushing capacity,high energy consumption,large plant vibration and high failure rate of equipment.In order to solve the above problems,the gangue crushing process of first crushing and then screening originally applied by the mine is switched to a process that puts screening ahead of crushing,and the sizing crusher is used in place of the primary raw crusher.With the use of the renovated system,there has been seen a rise of crushing capacity by 67.74%,a drop of power consumption for crushing by 67%,reduction of risks of blocking of crusher by 75.4%,an effectively reduction of maintenance workload.The renovation work made may provided a useful reference for the design and transformation of the crushing system for hard rock materials such as gangue.

关 键 词：矸石破碎 矸石破碎工艺 先筛后破 分级破碎机 破碎能力 

分 类 号：TD451[矿业工程—矿山机电]