千万吨综放工作面支架快速回撤工艺优化

Optimization of Rapid Withdrawal Process of Support in Ten Million Tons Fully Mechanized Top Coal Caving Face

为了提升特厚煤层综放工作面支架回撤效率,从优化中间支架回撤工艺入手,将原有的两掩护式支架回撤改为三掩护式支架回撤工艺。支架回撤处的机道和三角区顶板维护量大大减少,支架回撤过程更安全快速,取得了较好的技术经济效果。

In order to improve the support withdrawal efficiency of fully mechanized top coal caving face in extra-thick coal seam,starting with optimizing the intermediate support withdrawal technology,the original two-shield type support withdrawal technology is changed into three-shield type support withdrawal technology.The amount of maintenance of the machine path and triangle roof at the support withdrawal place is greatly reduced,the support withdrawal process is safer and faster,better technical and economic results have been achieved.