论文部分内容阅读
目前在小高炉、土高炉的生产中普遍存在的一个问题就是生铁中含矽少而含硫高,尤其是土高炉所产的生铁更为严重(含矽一般在0.3～0.6%而含硫为0.5～2%)。生铁中含矽少是影响转炉炼钢的,当然土铁中含矽少可加入矽铁来提高生铁水中的含矽量,以使含矽少的土铁吹炼成钢。但是目前我国矽铁的生产几乎都是用电炉冶炼的,因受电力及设备的限制,而产量很少。因此目前如果能大量生产高炉矽铁或高矽生铁也是非常有益的。但是在高炉生产矽铁,很多人认为在高风温,高焦比的条件下,产量仍低,且需用较大的高炉来冶炼。因此用高炉生产矽铁不是很经济
Currently a common problem in the production of small blast furnaces and earth blast furnaces is that the pig iron contains less silicon and contains more sulfur. In particular, the pig iron produced in the earth blast furnace is more severe (containing silicon in the range of 0.3-0.6% 0.5 ~ 2%). Sliver contains less silicon in the converter steelmaking, of course, less iron in the soil iron can be added to increase the silicon in pig iron to increase the silicon content of molten iron, in order to make silicon less silicon iron into steel. However, at present, almost all the production of ferrosilicon in our country is smelted by electric furnaces, and the output is limited due to the limitation of electric power and equipment. Therefore, it is also very beneficial to mass produce blast furnace ferrosilicon or high-silicon pig iron at this moment. However, the production of ferrosilicon in the blast furnace, many people think that the high wind temperature, high coke conditions, the production is still low, and the need to use a larger blast furnace to smelting. Therefore, the production of ferrosilicon blast furnace is not very economical