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攀钢是我国自行设计、制造、安装的大型钢铁联合企业.原设计热锭平均入炉温度700℃热锭率为90％.但在1977年以前钢锭入炉温度一直徘徊在600℃左右,热锭率只有60％左右,煤气单耗率达0.5百万千卡/吨坯以上. 1979年以来,开展和制订了热锭入炉温度竞赛及奖励办法,热锭入炉温度逐日上升,煤气单耗逐月下降.尤其是79年下半年开始效果更为显著.这三年的热锭入炉温度在全国同行业中居第一位. 实践证明钢锭入炉温度从600℃提高到800℃,生产率提高16—20％,煤气消耗降低1.75倍.从600℃—800℃之间每提高100℃缩短烧钢时间一小时.把钢锭温度提高到920℃以上,用逆“L”法加热,煤气
Panzhihua Iron and Steel is China’s own design, manufacture, installation of large-scale iron and steel enterprises. The original design of hot ingots into the furnace temperature of 700 ° C hot ingot rate was 90%. But in 1977 ingot ingot temperature has been hovering around 600 ℃, heat Only about 60% ingot rate, gas consumption rate of 0.5 million kcal / ton billet since 1979, carried out and developed a hot ingot into the furnace temperature competition and incentives, hot ingot temperature rising day by day, gas single Consumption month by month decline, especially in the second half of 79 years the effect is more pronounced .In three years, hot ingot furnace temperature in the country in the first place.It has been proved that ingot ingot temperature increased from 600 ℃ to 800 ℃, productivity Increased by 16-20% and gas consumption decreased by 1.75 times, the time for one hour was shortened by every increase of 100 ℃ from 600 ℃ to 800 ℃, the ingot temperature was raised to above 920 ℃, and the gas was heated by reverse “L”