水による熔融〓の爆発について (第1報)
爆発現象について
1957 年 73 巻 827 号 p. 295-300
詳細
1957 年 73 巻 827 号 p. 295-300
It has been noted that the molten matte occationally explodes in a converter when a wet charge is dropped in it. The writers investigated this explosion phenomenon in laboratory scale, that was caused. by letting water droplets fall on the surface of the molten matte (artificially prepared cuprous sulfide). A bellow was attached to the top of the reaction vessel. The vibration of the bellew caused by the explosion was amplified by a beam of the light and recorded on a film arround a rotating drum.
The result is as follows.
1. The explosion did not take place in the test apparatus with the first drop of water, but did with the second or the third.
2. The temperature of the matte had to be above 1200°C to explode.
3. The intensity of the explosion was sensitively affected by the experimental conditions, for instance, the condition of the surface of the matte.
4. The explosion took place easily in the oxidizing atomosphere but not in the inert gas.
5. The copper grade of the matte (Cu2S) had little effect on the explosion.
