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Drilling Blasting For Rock Crushing Plant

Drilling Blasting For Rock Crushing Plant

The drilling rate can be expressed in terms of the frequency of contact of the bit tooth with the rock and the volume of rock fragmented by each blow; it follows therefore that R fbvbA ~25 Eng. Geol. 25 1968 293-314 ROCK BREAKAGE BY CRUSHING BLASTING AND DRILLING 305 where fb blow frequency; vb volume removed per blow.

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