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| USE OF BULK EMULSION EXPLOSIVE TO IMPROVE BLASTING AND PRODUCTION PERFORMANCES AT JINDUICHENG OPEN PIT |
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| DOI： |
| KeyWord:Bulk emulsion explosive,Open pit,Blasting,Production efficiency, |
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| Abstract: |
| It is well known that bulk emulsion explosive has become a main direction in development of mining explosives.In the condition of using Site Mixed Emulsion explosive (SME),the charging and blasting performances can be improved,thus raising the efficiency of mining production.Ever since 1980s,the trucks for SME have been supplied for a lot of large and medial open pits and a series of bulk emulsion explosive with Chinese characteristics have been developed in China.In this paper,the achievements resulted from use of bulk emulsion explosive at Jinduicheng open pit are introduced. These achievements include 30% of increased blasted ore(or rock)area per hole,broken ore per meter of hole increased from 160t to 180t,73.5% of decreased comprehensive blasting cost,24.4% of lowered loading cost per ton of ore or rock and 6.4% of reduced drilling amount per 10000t of ore or rock. |
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