标题：Preparation System Design of Filling Material with Coal Gangue as Coarse Aggregate
作者：Sun, Youxia; Ren, Dawei
作者机构：[Sun, Youxia] Shandong Univ Sci & Technol, Educ Minist, Key Lab Min Disaster Prevent & Control, Qingdao 266510, Shandong, Peoples R China.; [Ren, Da 更多
会议名称：International Conference on Energy, Environment and Sustainable Development (ICEESD 2011)
会议日期：OCT 21-23, 2011
来源：NATURAL RESOURCES AND SUSTAINABLE DEVELOPMENT, PTS 1-3
关键词：coal gangue; green mining; preparation system; filling material
摘要：Based on green mining idea, this paper developed a kind of filling material with coal gangue as coarse aggregate and designed underground-preparation system with the main processes being breaking, mixing and pumping. As a result of the research, the coal gangue pollution and surface subsidence problem was effectively solved and the load of lift transportation system reduced and the cost of filling technology cut down, which meet the concept of green mining. The industrial experiment verified the safety and stability of the system which can improve enterprises economic benefits and social environmental benefits.