Abstract: The shortage of blasting technology in the production process of Luohe Iron Mine is analyzed,according to the the rock mechanics properties of the mine,the blasting parameters are optimized.The field test show that the single consumption of stope blasting explosive is reduced,the silt mine is reduced,the mass rate of the stage stope is obviously reduced and the cost of the direct ton mine of the fan hole perforation is reduced from 6.39 yuan/t in the early design to 5.05 yuan/t at present.

Key words: Hole network parameters, Mass rate, Parameter optimization