南钢3、4号高炉提高喷煤能力的技术改造

Technical reforms of the PCI system at Nanjing Steel

南京钢铁公司在1998年对老喷煤系统进行了技术改造,主要技改措施有:稳定气源压力,4、5、6号喷煤罐增加流化装置和把引射式煤粉混合器改换为气力调节浓相给煤器。经过改造,3、4号高炉的煤比由1997年的80kg/t左右可以提高到150 kg/t以上。

In 1998,the pulverized coal injection system at Nanjing Iron & Steel Co. was reformed by increasing a gas tank to stabilize source gas pressure, installing fluidizers on the injecting tanks, modernizing pulverized coal feeder. The coal rate can be raised from 80 kg/t to 150 kg/t after reforms.