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《Coal Mine Blasting》 2003-01
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Application of The Technique of Millisecond Blasting in Kaolinite Extracting

Meng Dejun~1 Liu Shengyou~2 Xu Mingquan~2 1 Anhui University of Science and Technology (Huainan, 232001) 2 Shuoli Coal mine of Huaibei Mining Industry Group (Huaibei, 235052)  
Coal bearing formation Kaolin ore mass has low ruggedness and strong fragileness, the ratio of extracting to full size is low and the throwing action of break stone at opencast face is strong when employing ordinary blasting method. We applied to the millisecond blasting method, prolonged properly the delay time between sectors of sequence blasting, controlled strictly the loading weight of explosive while applied to the water-pad uncoupled charge, and gained a good blasting effectiveness.
【CateGory Index】: TD235.3
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