摘要
文章通过理论与实践详细阐述了矿用电机车采用斩波调速的节能效果,并与其它各种起动方法的效率进行比较。
There are three types of yielding supports used in gate-road.1.A frictional metal prop,it can be used for roadway frame support one side or two side support of road way and support of hinged beam. This support can reduce the supporting cost by 37 to 46%. 2.A Yielding metal ladder support, it has two type supports and they are vertical yielding support and vertical-horizontal yielding support. The support will not break mine roof, can keep the roof complete and have close contact with the roof.The support has a high loading capacity.3.An yielding metal arch support, it has a high loading capacity and has been widely used in mine roadway. With the yielding supports, the gate-road could have a high loading capacity and meet the influence of mining activity .The yielding support has a high yielding loading to meet the convergence of the gate-road after the coal face mined cut.The advantages of the support are easy setting, easy dismantling, reusing and support cost saving.Therefore, it has a splendid future of development.
出处
《煤炭科学技术》
CAS
北大核心
1990年第5期15-23,共9页
Coal Science and Technology
