综合机械化固体充填采煤充填自动化系统

Backfill automation system of comprehensive mechanized solid backfill coal mining

针对目前综合机械化固体充填采煤充填效率低的问题,设计开发了综合机械化固体充填采煤充填自动化系统,介绍了综合机械化固体充填采煤技术,给出了充填自动化系统总体设计方案;介绍了充填自动化系统关键技术,如工作面采煤与充填协同作业流程,支架后端自动充填过程,随动功能对工作面自动化充填系统的保护,避免推压密实机构与多孔底卸式刮板输送机碰撞技术,以及移架与充填刮板输送机后移协调同步控制技术。充填自动化系统在邢台某矿的应用结果表明,使用该系统后,单一支架平均充填时间与原来手动充填时间相比缩短了近1倍,提高了充填自动化程度,使充填采煤效率达到综采效率。

According to a low backfill efficiency problem of the present comprehensive mechanized solid backfill coal mining, a backfill au- tomation system of the comprehensive mechanized solid backfill coal mining was designed and developed.The paper introduced the compre- hensive mechanized solid backfill coal mining technology and a general design plan of the backfill automation system was provided.The pa- per introduced the key technologies of the backfill automation system,including a collaborative operation procedure of the coal mining and backfill in the coal mining face, automatic backfill process behind the powered support, protection of the follow-up function to the automat- ic backfill system of the coal mining face, technology to avoid a collision between the pushing and compact mechanism and the multi bore- holes bottom unloading type scraper conveyor,a coordinative synchronous control technology of the powered support pushing and backfill conveyor.The application results of the backfill automation system to Xingtai Mine showed that after the system applied, an average backfill time of a singe powered support was a half time of the previous manual backfill time. Thus the backfill and coal mining efficiency could reach the fully mechanized coal mining efficiency and could improve the backfill automatic degree.