公开(公告)号：US4453770A

公开(公告)日：1984-06-12

申请号：US321863

申请日：1981-11-16

申请人： Thomas H. Dalrymple ,  Hal I. Dunham

发明人： Thomas H. Dalrymple ,  Hal I. Dunham

IPC分类号： E21C41/26 ,  E21C41/00

CPC分类号： E21C41/26 ,  E21C41/32

摘要： An improved system and method for relocating a selected layer of overburden, such as a layer of unconsolidated soil, in a strip mining operation are provided. The system employs an excavator, an intermediate belt wagon with at least two slewable conveyors, and a cross-pit conveyor having a long cantilevered conveyor pivotably supported on a mobile base; with all of said equipment being preferably based on the highwall side of the pit. According to the method, the area to be stripped is divided first into a series of large rectangles aligned parallel to the pit, with each rectangle being further divided into a series of narrow strips also parallel to the pit. The area is then progressively stripped beginning with the nearest strip of a first rectangle and proceeding with the next adjacent strip until the first rectangle is completed and then proceeding in like manner with each successive rectangle. The excavated material is transferred via the belt wagon and cross-pit conveyor directly across the pit and redistributed there in slightly curved windows which simulate the pattern according to which it was excavated.

摘要翻译： 提供了一种改进的系统和方法，用于在选矿开采操作中重新定位所选择的覆盖层，例如一层未固结的土壤。 该系统采用挖掘机，具有至少两个可旋转输送机的中间皮带货车，以及具有可枢转地支撑在移动基座上的长悬臂式输送机的跨坑输送机; 所有所述设备优选地基于坑的高墙侧。 根据该方法，将要剥离的区域首先划分为与凹坑平行排列的一系列大矩形，每个矩形进一步分成一系列也与凹坑平行的窄条。 然后从第一个矩形的最近的条带开始逐渐剥离该区域，并且继续与下一个相邻条带直到第一个矩形完成，然后以与每个连续的矩形相同的方式进行。 挖掘的材料通过皮带车和跨坑输送机直接通过坑转移，并在其中以稍微弯曲的窗口重新分布，模拟了根据它挖掘的图案。