The KQDL series cupola was trial produced aiming at the problems existing in the cupola, cold blast cupola, hot blast cupola, water cooling cupola.
前言： 针对冲天炉，冷风炉、热风炉、水冷却炉存在的问题试制出了“KQDL系列冲天炉”。
The principle and characteristics of KQDL series cupola which supply blast using air cooling, strengthening preheating and single row cyclone were discussed.
论述了“KQDL系列冲天炉”采用空气冷却、强化预热、单排龙卷风供风原理和特点。
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