Application Of Air Separation Blasting Technology In Kunming Phosphorite

With the deepening of the theoretical research about the blasting technology,the technology of air decked blasting flew into the line of people’s sight,the technology is applied in the mining both in China and abroad.The principle of air decked charge is that, put the air spacer into the blasthole, change the traditional mode coupling charge structure and extend the time of blasting stress wave in rock of hole wall, it has the prominent advantages in improving the blasting effect and reduce the cost.of blasting. it has higher value of application technology and better prospect of engineering application For surface blasting.Since its establishment of kunyang phosphate for 50 years,it has made the important contribution for the development of phosphate & compound fertilizer industry and Phosphorus chemical industry in China.However, with the increasing scale of mine production. The continuous improvement of mechanization and the advancement of spreading south engineering, Although work line of more than 10 kilometers, less than a mile from living quarters and village recently,Put forward the higher request to mine blasting technology. On the one hand, it is essential to guarantee and improve the blasting effect and reduce the blasting cost Under the premise of Give full play to the efficiency of equipment and Increase the size of the blasting.On the other hand, the effective control of blasting vibration can reduce the mine production affect to the living quarters and villages. According to current situation of mine production,the purpose of introducing and developing the technology of air interval blasting is to solve the outstanding problems of the mine blasting operation faced. By conducting experiments, from the level of theoretical study air interval blasting mechanism, to determine the reasonable proportion of air layer, in combination with experimental study, Master the conditions of use the technology in siltstone, to analysis from the efficiency of economic and blasting vibration, it has the high technology value of application in stripping of surrounding rock loose blasting in mines finally, it will have the profound impaction to the production and construction of Kunyang phosphate, it will Provide strong technical support for the realization of the goal of mining stripping and the long-term development in mines.