| 摘要 |
<p>917,792. Metallurgical converters. BETEILIGUNGSUND PATENTVERWALTUNGSGESSELLSCHAFT. Feb. 16, 1961, No. 5802/61. Class 72. A method of withdrawing waste gas from a metallurgical converter comprises collecting the waste gas by means of a water-cooled hood spaced from the mouth of the converter and inducing a flow of gas round the gap between the hood and the converter mouth. As shown, a water-cooled hood 2 is spaced from a converter 1 by a gap 7 and a second hood 3 surrounds the end of the hood 2. A pipe 5 leads to the interior 4 of the hood 3 and a gas, e.g. nitrogen, under pressure supplied through the pipe 5 escapes through a gap 6 between the hoods 2 and 3, or suction may be applied to the pipe 5, in each case air is prevented from entering the gap 7. The waste gas passes through a conduit 8 and the conduit and the hood may be raised by a jack 10. The waste gas may be used as a fuel or for the synthesis of organic compounds.</p> |
