文档介绍：Study of a New Kind of Green Environmental
Protection Material for Fire Preventing in Coal Mines
XU Yong-liang, WANG De-ming, ZHONG Xiao-xing, QI Xu-yao
the State Key Laboratory of Coal Resources and Mine safety
China University of Mining &Technology (CUMT)
Xuzhou, China
Email: ******@cumt.
Abstract— The sand-suspending thickener (SST), which is underground surroundings. Targeting the characteristics of the
distilled from the natural plant alga, is a kind of haride mining area, a new kind of sand suspending thickener (SST)
biopolymer, so the SST is poisonless, harmless and no pollution. for preventing bustion of the coal should be
In order to verify the characteristics of the SST, we applied the developed that can suspend the sand steadily at the ratio 2:1 of
self-designed Temperature Program Experiment System to test water and sand, and control the cost of grouting.
the inhibition characteristic, and applied the small-sized and
medium-sized experiment to test the suspension capability to the II. DEVELOPING THE SST
sand, and applied the grouting system of the pipeline to test the
resistance in the pipeline of the sand-suspending grout. We found A. The Characteristic of the Sand
that the inhibition characteristic of the SST was excellent, the The coalfield of Shengdong coal mining area is abundant in
suspension capability of the SST