在保证井下工人采掘作业人身安全的前提下,努力降低矿块回采过程中的贫化损失,提高经济效益,是采矿工作者责无旁贷的任务。尤其是从资源不能再生的角度来说,降低回采损失,就更有意义,我们在大吉山钨矿467中段南组22~#东二釆、22~1东二采和27~4南北采三条交叉十字脉的回采过程中,初步进行了降低交叉十字脉回采损失率的探索,取得了一些效果。 Under the premise of ensuring the personal safety of mining workers underground, efforts to reduce depletion losses during the mining process and improve economic efficiency are the unshirkable tasks of mining workers. Especially from the point of view of resources can not be reproduced, it is more meaningful to reduce the recovery loss. We collected 3 pieces of 22 # Dong Er Bian, 22 ~ 1 Dong Er Cai and 27 ~ 4 Nanbei in the middle section of 467 Dajishan Tungsten Mine During the process of cross cross vein recovery, preliminary exploration to reduce the recovery rate of cross-cross vein recovery has been made and some results have been obtained.