This paper introduces the structure and principle of the vacuum vertical disc filter,describes advanced design concept and reasonable structure adopted in the vacuum vertical disc filter design,which are expected to solve the problem existing in the filter,such as agitation,load and upload of the filter plate,transmission mode,support and manufacture.

To solve the problem in driving of a drift with peripheral hole smooth blasting,the air-deck charge in peripheral hole smooth blasting and its improvement on the detonation mode have been applied,and better blasting effect has been obtained,The practical application has proved that the technique is simple in operation,low cost in blasting,very profitable and valuable in extended application.