论文部分内容阅读
在中论述了吹洗炮孔中的耗气量的计算方法,这些方法都考虑到岩粉沿吹洗空间输送的情况。但是,还必须考虑吹洗炮孔底附近区岩粉的耗气量。并且还必须根据耗气量的最大值来确定钻机所配用的空气压缩装置的供给量。用于吹洗的耗气量取决于所产生破碎物的强度和岩粉的粒度组成情况。根据按粒度去划分岩粉所遵循的规律得出岩粉的密度为:
In this paper, the calculation method of air consumption in purging blast holes is discussed. All of these methods take into account the situation of rock powder transported along the purge space. However, it is also important to consider the air consumption of rock dust near the bottom of the blasthole. It is also necessary to determine the supply of air compressors to be equipped with the drilling rig based on the maximum air consumption. Air consumption for purging depends on the strength of the crushed material produced and on the particle size composition of the rock dust. According to the rules followed by the particle size to divide the rock powder derived rock powder density: