Yongping Copper Mine set up a LRZ-2 emulsion explosive continuous production line in 1990.This production line is automatically controlled by a micro computer-controlling system,realizing on-line check and remote transmission/indication of various parameters,being high in automation level and large production capacity.The produced emulsion explosive with stable performance and better water-resistance can meet the requirement for the open pit mining of the mine and its application results in the improvement of blast effects so as to reduce the production cost of the mine.