溶鉱炉 ようこうろ Also written 熔鉱炉, 鎔鉱炉 Meanings Noun smelting furnace; blast furnace Kanji 溶 melt. Read as ヨウ. 鉱 ore. Read as コウ. 炉 furnace. Read as ロ. Jinuma: Japanese Dictionary · Word lists