反循環鉆機的施工工藝

點擊數：62862016-11-26 17:59:48　來源:

邯(han)鄲市鉆巖(yan)工(gong)程(cheng)機械生產(chan)的反循環(huan)鉆機，沖(chong)(chong)擊反循環(huan)破碎入巖(yan)工(gong)藝的破碎機理(li)是利用沖(chong)(chong)擊鉆頭對(dui)巖(yan)石進行較(jiao)高頻率的沖(chong)(chong)擊,使巖(yan)石產(chan)生破碎,然后(hou)利用反循環(huan)排渣(zha)方式及時(shi)將破碎巖(yan)屑第一時(shi)間排出孔外。沖(chong)(chong)擊鉆頭由兩根鋼繩平(ping)衡連(lian)接,無論起、下鉆都非常方便,大(da)大(da)縮短了輔助時(shi)間。

因此,沖(chong)擊反(fan)循(xun)環鉆(zhan)(zhan)頭是(shi)(shi)(shi)沖(chong)擊鉆(zhan)(zhan)進(jin)的(de)主要(yao)工(gong)具,其結構(gou)的(de)合理與否(fou)直接(jie)影響(xiang)到鉆(zhan)(zhan)進(jin)效率(lv)和質(zhi)量。在沖(chong)擊鉆(zhan)(zhan)進(jin)過(guo)(guo)程中,關鍵是(shi)(shi)(shi)沖(chong)擊和吸(xi)(xi)渣(zha)量是(shi)(shi)(shi)否(fou)匹配,也是(shi)(shi)(shi)確保孔(kong)壁穩(wen)定正(zheng)常鉆(zhan)(zhan)進(jin)最基本最重(zhong)要(yao)條件。在鉆(zhan)(zhan)進(jin)過(guo)(guo)程中吸(xi)(xi)渣(zha)工(gong)作應根(gen)據鉆(zhan)(zhan)進(jin)地層(ceng)和情(qing)況而定,不應過(guo)(guo)量汲渣(zha)以(yi)免造成孔(kong)壁失穩(wen)坍孔(kong)。發生(sheng)埋鉆(zhan)(zhan)事故。另外,在沖(chong)擊過(guo)(guo)程中,必(bi)須經常檢(jian)查(cha)鋼絲(si)繩的(de)磨(mo)損情(qing)況以(yi)及轉向裝置(zhi)的(de)靈活性(xing)和連接(jie)的(de)牢固性(xing),以(yi)防磨(mo)斷(duan)或(huo)因轉向不靈而扭(niu)斷(duan)鋼絲(si)繩,發生(sheng)掉鉆(zhan)(zhan)事故。

根據地質情況,鉆頭出(chu)量研磨材(cai)料提(ti)(ti)鉆時(shi)(shi)要(yao)(yao)應(ying)經常檢查(cha)(cha),一(yi)般地層每小班至少提(ti)(ti)鉆一(yi)次檢查(cha)(cha),復雜地層提(ti)(ti)鉆頭次數要(yao)(yao)增加(jia)(jia),往往鉆頭底量和外出(chu)量在(zai)砂卵石和基(ji)巖(yan)中磨損嚴(yan)重,所以(yi)應(ying)及時(shi)(shi)進(jin)行修(xiu)(xiu)補(bu),這樣(yang)就增加(jia)(jia)了修(xiu)(xiu)補(bu)鉆頭的鋪助時(shi)(shi)間,降低(di)了純鉆進(jin)沖擊時(shi)(shi)間,又減少了修(xiu)(xiu)補(bu)鉆頭的輔(fu)助時(shi)(shi)間,再則(ze)在(zai)提(ti)(ti)升鉆頭時(shi)(shi),要(yao)(yao)小心(xin)謹慎,尤其(qi)是在(zai)快到護(hu)筒(tong)(tong)底部(bu)將鉆頭慢慢提(ti)(ti)起,防(fang)止碰撞孔(kong)(kong)口護(hu)筒(tong)(tong)以(yi)免造(zao)成護(hu)筒(tong)(tong)底部(bu)坍孔(kong)(kong)或(huo)護(hu)筒(tong)(tong)錯位(wei)或(huo)變形(xing)事故。