边角煤高回收率高效开采工艺设计与优化  

Design and optimization of the mining method of boundary coal-pillars with high recovery ratio and high efficiency

作　　者：叶根喜[1] 姜福兴[1] 刘鹏亮[2] 冯增强 王道宗 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室 [2]煤炭科学研究总院开采分院,北京100013 [3]兖矿集团公司南屯煤矿,邹城273500

出　　处：《北京科技大学学报》2007年第7期655-659,共5页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金重大国际合作项目(No.50320120001)

摘　　要：针对国内边角煤的开采现状,提出了一套高回收率和高效率的开采工艺.用弧三角模型简化边角煤形状,提出了容易实现综合设备配套的“弧形”工作面开采工艺.该工艺沿边界顺槽顺序开挖若干支架边窝,采用“取消端头支架,采用简易机头实现快速增、撤支架”的布架方式.利用数学线性规划理论,建立了回采效率的目标函数和安全、开采成本的约束函数,对关键工艺参数进行了研究,得出一次增接支架数是优化核心的结论.通过优化分析,得出在高回收效率和低成本原则下的最优方案.Based on the simplified plane shape, a new mining design and optimization method for recovering boundary coal-pillars, called arc-face mining method, was presented. Its advantages are as follows： easy to choose the related comprehensive auxiliary equipment, high recovery ratio and efficiency, and fitting the fully mechanized coal mining technology, even the sub-level longwall eaving face technology when the geologic condition is permitted. The key techniques include： developing a series of underground chambers along tailgate; in a chamber, storing some supports which will be added to the coming face-supports when the face advances near the chamber; canceling face-end supports and adopting a simple conveyer in order to add or remove supports quickly. Then, with the linear mathematics programming theory, the objective function of recovery efficiency and the constraint functions of safety and exploitation cost were established. It is concluded that the increased number of supports each time not only affects the number of underground chambers but also the efficiency. The optimization analysis also provides various optimal technology schemes with the principle of higher efficiency or lower cost.

关 键 词：边角煤 工作面 开采工艺 工艺设计 方案优化 

分 类 号：TD214.2[矿业工程—矿井建设]