Shaba Mine Tall Auxiliary Shaft To Change The Main Chute

The content of the research on changing the high shaft into a main ore-pass in Yong-Sha-Ba mine has three parts. The first, the research on rules of ore-drawing in ore-pass and the application research of vibrating ore-drawing and its correlated technology, the second, the research and implement of the craftwork technology on the safe backout of the original shaft establishment on time, at last, it need to reinforce of enlarged sides following the design's request after the establishment of the shaft is backouted. The content of the research has completed as the plan in time. It achieves the following production:1.The thesis has deeply analyzed the rule of ore-drawing in ore-pass, especially the rules in main ore-pass, and the application condition of the technology parameters about vibrating ore-drawing. These researches have offered the theory foundation for the implement of the changing engineering of ore-pass.2.It has firstly adopted the way of the establishment in original shaft with the method of backing and changing the square. Then it has effectively solved the insecurity and bad condition in backouting of establishment in high shaft. This is very safe and reliable.3.It has solved the problems of the running and block of ore in ore-pass, which has ever influenced the production, with the advanced vibrating ore-drawing technology and its assistant technology. For example, it has adopted the bended join and the new structure of triangle steep slope in the design of the bottom of ore-pass, which has enlarged prevalence scope of the vibrating wave. When it adopted to use two parallel feeders to draw ores, the technology of block-breaking with high-pressure wind cannon is adopted. These have explored the new technology on the ore-drawing in main large production ore-pass.4.The production is very large and the energy is cost little, the work is safe; and the benefit of economy and society is very remarkable. This research has created a new technology way for the same engineer's changing and the ore-drawing in main ore-pass in our own mines. It will improve the ore-drawing technology in the main ore-pass of our country.