山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2014年
2期
1-2
,共2页
三棱钻杆%卡钻%喷孔%本煤层抽放
三稜鑽桿%卡鑽%噴孔%本煤層抽放
삼릉찬간%잡찬%분공%본매층추방
triangular drill pipe%drainage of coal seam
三棱型钻杆使钻杆形成3个半圆形的间隙，扩大排出煤粉和瓦斯的通道，随着钻杆边的搅动，钻渣被水冲悬浮起来，同时在水量和水速的作用下向孔口传输运移，有效地解决了传统钻杆在中软煤层或煤与瓦斯突出煤层顺层钻孔时的卡钻、喷孔等现象。
三稜型鑽桿使鑽桿形成3箇半圓形的間隙，擴大排齣煤粉和瓦斯的通道，隨著鑽桿邊的攪動，鑽渣被水遲懸浮起來，同時在水量和水速的作用下嚮孔口傳輸運移，有效地解決瞭傳統鑽桿在中軟煤層或煤與瓦斯突齣煤層順層鑽孔時的卡鑽、噴孔等現象。
삼릉형찬간사찬간형성3개반원형적간극，확대배출매분화와사적통도，수착찬간변적교동，찬사피수충현부기래，동시재수량화수속적작용하향공구전수운이，유효지해결료전통찬간재중연매층혹매여와사돌출매층순층찬공시적잡찬、분공등현상。
In order to solve the traditional drill pipe in soft coal seam or a coal and gas outburst coal seam bedding when drilling,drilling,hole,low efficiency of sludge discharge,gas outburst,high mechanization degree is not high, triangular type drill pipe to pipe form three semicircular clearance,enlarge the channels of coal and gas discharge,with stirring,on the edge of drill pipe,drill slag by water is suspended,at the same time under the action of water and water speed,migration to the orifice transmission, effectively solve the spray construction drilling, drilling, hole phenomenon.
