| 摘要 |
<p>This invention relates to a method of heating coke ovens with a rich gas mixed with varying proportions of relatively lean gas, with regenerative heat exchange between the combustion air and burnt gases only. In the method the pressure of the gas supplied to the burners is kept at a constant value selected to correspond to the maximum admixture of lean gas in the mixed gas and any reduction in the quantity of lean gas supplied is compensated for by cutting off heating for an interval within each regenerative half-period, in which the reduction of lean gas occurs. In this way the heat supplied during a regenerative half-period can be controlled to a predetermined value.</p> |
