Experimental Study on New Type of N4-2 High Temperature Resistant Dust Suppression Agent

Dust suppressant agent are widely used in coal mine dust suppression, however, geothermal hazards often affect dust suppression effect. In order to solve this problem, experimental study on a new type named N4-2 which can withstand high temperature was conducted. reagents A and B were compounded in different proportions with different amounts of halides C, its deposition rate, compressive strength, high temperature performance test showed that when the ratio of the reagents A and B was 4∶ 2 and the halide content was 4%, the new N4-2 dust suppressant deposition rate reached 90%, the compressive strength is "high", the best temperature is 40 ℃, and it can withstand 50 ℃ temperature. The application in a coal mine with serious geothermal harm proved that the dust suppression effect was obvious.