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我厂辊底式退火炉始建于1974年,原采用的是铸钢水冷却炉辊,并且没有余热回收装置,加上炉体不严,绝热性差,燃烧装置落后,所以造成燃耗高,耗水量大,环境条件恶劣。随着科学技术的发展,以及能源供求矛盾的日益紧张,对原辊底式炉进行技术改造,应用节能型无水冷耐热铸钢辊的探讨,更显得大有必要。为此,我厂于1987年12月在该厂辊底式退火炉上进行了10根无水冷耐热铸钢辊的试验,取得了良好的节能、节水效果。煤气单耗由原来的448m~3/批管,降低到333m~3/批管,燃料节约率达25.7％,年预计可节约燃料410万m~3,节水15.55万t直接
Our factory roller hearth annealing furnace was founded in 1974, the original is the cast steel cooling roller, and no waste heat recovery device, coupled with the furnace is not strict, poor insulation, combustion devices behind, resulting in high fuel consumption, Water consumption, poor environmental conditions. With the development of science and technology and the increasing tension between supply and demand of energy, it is even more necessary to carry out technological innovation on the original roller hearth furnace and to apply the energy-saving water-cooled and heat-resistant cast steel roller. To this end, I plant in December 1987 in the mill roller annealing furnace conducted 10 cold heat-resistant cast steel roller test, and achieved good energy-saving, water-saving effect. Gas consumption from the original 448m ~ 3 / batch control, reduced to 333m ~ 3 / batch control, fuel savings rate of 25.7%, the estimated annual savings of 4.1 million m ~ 3 fuel, water 155,500 t