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钻机的压缩空气输送系统的计算由两部分组成。第一部分确定按粒度划分岩粉的参数和吹洗炮孔的用气量。第二部分确定气压的损失和钻机空气压缩装置的参数。〔1、2〕所提出的计算方法,其第一部分以按粒度实际划分和预测划分岩粉所建立的规律为根据,并要求用电子计算机计算。在第二部分中,气压损失的确定考虑到压缩空气的密度随钻孔深度的不同而发生的变化,必须解函数方程式,这也决定了使用电子计算机的合理性。如果在确定耗气量时以岩粉最后的能量总和为条件,而在气压下降不大、气体密度的变
The calculation of the rig’s compressed air delivery system consists of two parts. The first part determines the parameters of rock dust by particle size and the amount of gas used to purge the blasthole. The second part determines the loss of air pressure and the parameters of the rig air compressor. [1,2] proposed the calculation method, the first part of the particle size based on the actual division and prediction of the laws of the established division of rock powder as the basis, and requires the use of computer calculations. In the second part, the determination of pressure loss takes into account changes in the density of compressed air with the depth of the hole, you must solve the function equation, which also determines the rationality of the use of electronic computers. If the determination of air consumption in the final total energy of rock powder conditions, but not in the pressure drop, the gas density changes