隐蔽技术就是为避免高温工艺气对激冷环的直接冲刷 ,而采取的在炉底口砖 4#、5 #、6#尺寸 ( 45 7ｍｍ)不变的条件下 ,适当放大激冷环直径 ,使其隐藏在死区的一种保护措施。其特点 :①迎火面改为圆弧型 ,焊缝少 ,应力集中小 ,热应力破坏的因素得到扼制。②进水分布孔后增加进水 Hidden technology is to avoid the high-temperature process gas on the quench ring direct erosion, taken at the bottom of the brick 4 #, 5 #, 6 # size (45 7mm) unchanged conditions, the appropriate amplification of the quenching ring diameter, A protective measure that keeps it hidden in the dead zone. Its characteristics: ① fire face to arc type, weld less stress concentration, thermal stress damage factors have been curbed. ② water distribution holes increase water