挖改潛孔鉆機
挖改潛孔(kong)鉆機(ji)壓縮空(kong)氣(qi)為(wei)動力的中(zhong)深孔(kong)鑿(zao)巖(yan)(yan)設備主(zhu)要用(yong)于井下采(cai)礦場(chang)接桿鉆鑿(zao)上向扇(shan)型或環型中(zhong)深孔(kong)的石方(fang)工程。適用(yong)于巷道斷面為(wei)2.5*2.5m到(dao)3m*3m鉆孔(kong)直徑50-80cm,有效(xiao)孔(kong)深30m。采(cai)用(yong)直徑65mm的十字(zi)型合(he)金(jin)釬(han)頭在F12-14級礦巖(yan)(yan)中(zhong),平均純鑿(zao)巖(yan)(yan)速度可達(da)680mm/分。鉆架(jia)結構(gou)簡(jian)單。鑿(zao)巖(yan)(yan)機(ji)拆運方(fang)便,工作安全可靠,效(xiao)率高。用(yong)于冶金(jin)礦。


