产品应用领域新.doc

SECONDARY BOULDER BREAKING
矿石二次爆破
Secondary breaking in surface mines and quarries occurs where oversize rocks are produced from a primary blast that need to be reduced to a manageable size for loading and crushing. In practice most hard-rock surface mines and quarries would expect to re-blast or break up to 5% of their rock after effective primary blasting.
露天矿场和采石场的二次爆破,指的是发生在初次爆破后,那些体积过大的岩石需要再分解到可运输和压制的状态。在实践中,大多数出产硬质岩石的矿场和采石场,希望能有再次爆破,或者更为有效的初次爆破使他们出产的矿石体积分解至原体积的5%。
There are hidden costs associated with ‘oversize resulting from a mass blast using conventional explosives:
以下是使用传统的爆炸物导致分解后的矿石体积过大所引起的潜在的成本:
the oversized rocks are an obstacle to productive load and haul activity
体积过大的岩石是生产过程中装卸和搬运的一大障碍
they cannot be dealt with cost effectively due to size and get in the way
体积过大使它们很难有效计算成本
are normally left to be charged in the next mass blast, which often creates new oversize, thus the obstacles are perpetuated
通常成本会延续到第二次爆破中,而这次爆破的结果经常是矿石仍然体积过大,这种障碍无疑将具有持续性。
oversize impacts negatively upon production unless dealt with in the on-going production cycle
除非这样生产出来的矿石处于一个正在进行中的生产循环中,否则体积过大将对生产产生不利影响
tramming equipment over distances out the pit in order to use conventional explosives must be avoided; Wear and tear on final drives and tracks is a significant hidden cost.
长距离的用来运输传统爆炸物的矿车类装置必须要被避免使用,因为车道和车辆的损耗将是一笔巨大的隐性成本
Using Nonex cartridges for secondary breaking during load and haul activity is feasible, safe and productive; overall productivity is significantly enhanced.. Most open cast sites have large excavators, some of which have outlived their productive life, but make excellent support tools in the secondary breaking process. Material handling support for drilling, putting the oversize into manageable rows provides easy access to the rock and enhances safety. The same excavator loads the broken rock for removal
在二次爆破的装卸和运输过程中使用Nonex 弹夹(雷管)是可行,安全且具有生产力的。整体的生产能力将得到大幅提升。大多数露天矿都使用大型挖掘机,其中相当一部分已经超过了使用寿命,但仍能在二次爆破作业中发挥良好
性能。那些用于钻孔和分解体积过大岩石