Since open up a mine,"1.9" after the demolition of the drill pipe injury accident,Chongqing Energy Group Songzao Spring coal immediately set up a research team of the "auto-demolition of the drill pipe device",to undertake studies.In the research process,it has a hydraulic clamp and spine Agency modification have failed due to bad in conjunction with the rig and drill pipe.Chance,a member of the research team,Liu Xuejun,by the inspiration of the quick connector of the underground high-pressure pipeline,proposed use of the positioning of the bearing ball sleeve fixed way to develop automatically remove the drill pipe device.After processing through the mine field test,successfully demolished over 40 root drill pipe,completely automatically demolition drill pipe,marked automatically remove the drill pipe device successfully developed.
Spring coal mine developed automatically remove the drill pipe installations,the main bearing ball through the outer sleeve fixed drill pipe Quartet for position within the sleeve fixed rig rotating device,the use of the rig power,reverse rotation,to achieve the safe demolition of the drill pipe purpose.Mine will automatically demolition drill pipe device was put into use,to avoid the previous use of artificial rotation of the drill pipe wrench of traditional demolition,to eliminate the cause of insecurity wrenches injury accident and site constraints due to rig misuse also reduces the labor intensity,does not require drilling work in the demolition of the drill pipe as before,manpower rotation and percussion drill pipe to avoid beat drill pipe,drill pipe deformation and other factors,the results are quite remarkable.
Spring coal is scientific research to actively apply for national patents,at the same time across the company.The photo shows workers are presenting automatically remove the drill pipe device.