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涟钢400/250小型轧钢车间的主要机械设备是φ400×2/φ250×4+φ280×1二列横列式轧机,产品规格为直径12～25毫米的圆钢和螺纹钢,使用坯料为边长55、60、75毫米方坯,设计年产量为10万吨。加热设备为单排装料端进侧出推钢连续式重油加热炉,有效长度20.6米,有效宽度3.71米,有效面积76.4米~2,烟囱高40米,设计产量26吨/时。利用烟气余热加热的余热锅炉设计能力每小时蒸汽产量2吨。1982年4月,曾着手进行该车间重油加热炉采用微型计算机直接数字控制装置控制加热工艺参数的可行性研究。在当时国内尚无先例的情况下,经过与重庆工业自动化
The main machinery and equipment of the 400/250 small rolling mill of Lianyuan Iron and Steel Group Co., Ltd. are two rows of horizontal rolling mills of φ400 × 2 / φ250 × 4 + φ280 × 1. The product specifications are round and rebar with diameters of 12 to 25 mm. 55,60,75 mm billet, design annual output of 100,000 tons. Heating equipment for the single side of the loading side of the steel side of the continuous heavy oil heating furnace, the effective length of 20.6 meters, the effective width of 3.71 meters, the effective area of 76.4 meters to 2, the chimney 40 meters high, the design output of 26 tons / hour. The design capacity of waste heat boiler heated by flue gas waste heat can produce 2 tons of steam per hour. In 1982 April, has conducted the workshop heavy oil heating furnace using microcomputer direct digital control device to control the feasibility of heating process parameters. At the time there was no precedent in the country, after the industrial automation with Chongqing