日本钢管公司和福山共同机工公司合作发明了转炉“密封”出钢装置,其主要能起密封作用的二个法兰,一个焊接在转炉出钢口上,另一个焊接在钢包盖上。法兰由钢板压制成形并砌有耐火砖,出钢时二个法兰能够密合在一起,保证钢水从转炉出钢口流入钢包内。平时出钢口用挡渣塞堵住,出钢时打开挡渣塞,并从挡渣塞前端向钢包内吹入惰 Nippon Steel and Fukuyama Kyodo Co., Ltd. co-invented the converter “seal” tapping device, which is mainly capable of sealing two flanges, one welded to the tapping hole of the converter and the other welded to the ladle lid. The flange is press-formed from a steel plate and is brick-lined with refractory bricks. When the steel is tapped, the two flanges can be brought together to ensure that the molten steel flows into the ladle from the tapping hole of the converter. The tapping hole is usually blocked with a slag stopper, when tapping, the slag stopper is opened, and the slag is poured into the ladle through the front end of the slag stopper