超高水材料采空区充填工艺系统与应用研究  

Process System of Goaf Filling with Ultra-high-water Materials and Application

作　　者：冯光明[1] 王成真[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221008

出　　处：《山东科技大学学报（自然科学版）》2011年第2期1-8,共8页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(50774077)

摘　　要：为解放建筑物下压煤,结合超高水材料的基本性能和使用方法,提出进行超高水材料采空区充填开采并设计了相应的充填工艺系统。详细介绍了浆液配制系统的工作原理并分析了其制浆能力和生产周期,研究了超高水材料浆液的流变性及其可泵性。研究表明:半连续的超高水材料浆液配制系统能够提供连续的浆液,该系统生产能力大,周期短,材料配比准确;A、B单浆液流动性好,适合在管路中长距离输送,混合浆液的输送应在2/3凝结时间内完成,浆液输送时柱塞泵工作压力小,充填泵型号选择范围广。在密闭、潮湿、低温的采空区环境中,超高水材料是一种性能良好的"三下"采空区充填材料,充填工艺系统结构简单,机械化程度高,实际应用与操作方便,对煤矿地质条件适应性强。Based on the basic properties and usage of ultra-high-water materials,the goaf filling mining with ultra-high-water materials was proposed and the corresponding process system was designed so as to liberate the coal resources under buildings.The working principle of slurry preparation system was introduced and its pulping ability and production cycle were analyzed in detail.The rheology behavior and pumpability of ultra-high-water slurry were studied.The results show that the semi-continuous preparation system of ultra-high-water material slurry can provide the continuous slurry with characteristics of great production ability,short cycle and accurate material mixture ratio.The single slurry A or B has a good fluidity,suitable for long-distance transportation with pipelines,and the transportation of mixed slurry should be completed before 2/3 of the solidifying time.The piston pump has a low working pressure when slurry is transported,so,the range of filling pump selection is wide.The ultra-high-water material is a type of good filling material in a wet,cold and closed goaf environment,and its process system of filling has the advantages of a simple structure,high degree of mechanization,convenient practical operation,strong adaptability to the geological conditions of coal mines,and so on.

关 键 词：超高水材料 充填工艺系统 浆液配制 管路输送 

分 类 号：TD823.83[矿业工程—煤矿开采]