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在美国,由于在一定煤层条件下,长壁采煤具有更高的生产能力,已有许多煤炭为长壁式工作面采出.采用后退式回采,一个长壁工作面已达到了很高的产量.但是,影响长壁采煤工效的一个主要因素是工作面搬家占用生产时间和劳动.用传统方法长壁面搬家需要4～6周,产量减少10～15%.在多数情况下,为消除搬家的产量损失,就要使用第二套采煤设备.这虽然抵消了产量损失,但又增加了设备投资.寻求一种高效的工作面搬迁技术以提高长壁采煤工作面的利用率,需要一个快速搬迁工作面设备的方法.液压支架搬运车不用人工拆卸工作面设备,搬完一个长壁工作面设备降到4天时间.为有效地利用液压支架搬运车,必须对每一种开采条件制定周密的计划和严格的操作程序.
In the United States, many long-wall coal faces have been mined due to the higher productivity of long-wall coal mining under certain coal seams, and the longwall face has reached a high level However, one of the major factors that affect the ergonomics of longwall coal mining is that the face moves occupy production time and labor, which takes 4 ~ 6 weeks to move the longwall with the traditional method and reduces the output by 10 ~ 15% .In most cases, The loss of moving production, it is necessary to use a second set of coal mining equipment, which, although offset the loss of production, but also increased investment in equipment.To find an efficient face moving technology to improve the utilization of longwall coal mining face, There is a need for a quick method of relocating face equipment.Hydraulic pallet trucks do not have to manually remove face equipment and move a longwall face down to 4 days.To effectively utilize the hydraulic pallet truck, Conditions to develop a well-planned and rigorous operational procedures.