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A. S. Zhilin
A. S. Zhilin
Ural State Mining and Geological Academy
Ural State Mining and Geological Academy

Articles

Mineral resources development
  • Date submitted
    2002-07-20
  • Date accepted
    2002-08-25
  • Date published
    2003-02-01

Use of surfactants to improve the quality of rock crushing

Article preview

The prospects of using surfactants (surfactants) to improve the quality of crushing rocks by explosion are considered. On the basis of a deep analogy of impact and explosive destruction of rocks the procedure for determining the characteristics of the rock particle size distribution, specific energy intensity of destruction and normalized crushing pulse, which is a material constant, is worked out. Experimental determination of this constant allows us to estimate optimal parameters of drilling and blasting operations when rock properties change under the influence of surfactant. It is established that saturation of limestone with optimally selected surfactant (0,1 % solution of MgCl2) allows to reduce the specific consumption of explosives by 15 % and the penetration distance by 7 % at maintenance of the given quality of crushing of rocks.

How to cite: Zhilin A.S. Use of surfactants to improve the quality of rock crushing // Journal of Mining Institute. 2003. Vol. № 2 155. p. 62-64.