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在船采工艺中,一个十分重要的参数就是移步距。移步距过大,将导致底板矿砂损失增大,而砂金矿床底部一般都是含金品位较高区段,当然会使黄金损失急剧增加;移步距过小,将导致用于进船和斗桥下放的非生产时间增多,降低了挖掘效率。因此,合理地计算与控制挖掘船的移步距,对增加黄金产量,有着极其重要的意义。一、移步距的计算据苏联有关文献资料记载,他们采用经验法来计算移步距,其公式为:
In the mining process, a very important parameter is the move step. Move too far, will lead to loss of the floor of the ore increased, while the bottom of the gold-bearing gold deposits are generally higher grade section, of course, a sharp increase in the loss of gold; step is too small, will lead to into the ship and The non-production time of derailment increased, reducing the efficiency of excavation. Therefore, it is extremely important to increase and increase the gold output by reasonably calculating and controlling the moving distance of the dredging vessel. First, the calculation of walking distance According to the Soviet literature records, they use the empirical method to calculate the step distance, the formula is: