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鞍钢大型固定式平炉自1958年建成投入生产后,从初期的情况看来,炉子的热工效能是令人满意的,火焰温度(不增炭)一般均在1750—1850℃之间,蓄热室最上层格子砖的温度经常处于1150—1350℃之间;烟囱吸力波动在60—65毫米水柱之间(600吨平炉的吸力为65—75毫米水柱)。用20％左右的废钢和80％左右的铁水来冶炼含炭量为0.14—0.24％的普通炭素钢时,400吨平炉熔炼时间一般为10小时左右,600吨平炉在13小时上下;温度良好,完全能满足下注要求,快速炼钢炉每炉的熔炼时间,小炉为7—8小时,大炉为9—10小时。但是由于我们对大型固定式平炉的操作缺乏经验,开工生产半年之后,在热工方面逐
After the large-scale fixed hearth furnace of Anshan Iron and Steel Co., Ltd. was put into production in 1958, the thermal performance of the furnace is satisfactory from the initial situation. The flame temperature (not increasing carbon) is generally between 1750-1850 ℃, and the heat storage The temperature of the topmost brick in the room is often between 1150 and 1350 ° C; the chimney suction fluctuates between 60 and 65 mm of water (the suction of a 600-ton hearth is 65-75 mm of water). With about 20% of the scrap and about 80% of the molten iron to smelt carbon steel containing 0.14-0.24% of the ordinary carbon steel, 400 tons open hearth melting time is generally about 10 hours, 600 tons open hearth furnace in 13 hours up and down; good temperature, Fully able to meet the betting requirements, rapid smelting furnace furnace time, a small oven for 7-8 hours, a large furnace for 9-10 hours. However, due to our lack of experience in the operation of large stationary hearths, after six months of commencement of production,