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一、往雷燎裹输送氧氛的方法 表7列举美国和西欧国家的个别工厂所采用之有关在电炉中应用氧气炼钢时,氧气的数量和压力、氧气输送管的尺寸以及氧气的输送方法等基本数据。对于中型和大型的炉子,将氧气通向炉子用的输送管的直径为2—3时,压力约为8大气压。氧气是通过由加料门的小孔插入钢液池中的管子被输送进炉子中的。某些工厂应用的管子,在其外层上涂有一层耐火材料,并不事先经过干燥。在萨窝斯工厂[49],经过了一系列的实验得到了这样的结论:在冶炼不锈钢时管子最适宜的直径是3/4时,在冶炼低合金钢时管子最适宜的直径则是1/2时。在袭肯工厂也得到了类似这样的结论。这个工厂的电炉炼钢车间具有两座电弧炉,一座容量是30吨,另一座是70吨。炉子的工作台是成一直线的排列着。氧气自直径为3时的总输送管经由直径两时的输送管引向各炉,氧气的压力为7.7大
I. Methods of transporting oxygen to thunder lumps Table 7 lists the quantities and pressures of oxygen used in individual plants in the United States and Western European countries for oxygen steelmaking in an electric furnace, oxygen pipe size, and oxygen delivery method Other basic data. For medium- and large-scale furnaces, the diameter of the duct through which oxygen passes to the furnace is 2-3 and the pressure is about 8 atm. Oxygen is fed into the furnace through a tube inserted into the molten steel pool through the orifice of the charging gate. Some factories use pipes coated with a layer of refractory on the outer layer without prior drying. At the Sakos factory [49], a series of experiments led to the conclusion that the optimum pipe diameter for smelting stainless steel is 3/4 and the optimum pipe diameter for smelting low alloy steel is 1 / 2 hours. In the attack Ken factory also got such a conclusion. The EAF plant has two electric arc furnaces, one with capacity of 30 tons and the other with 70 tons. Stoves workbenches are lined up in line. Oxygen from the diameter of 3 when the total delivery pipe through the diameter of the two-hour delivery pipe leading to the furnace, the oxygen pressure of 7.7 large