南钢高炉喷煤制粉系统的改造

Remake of the Coal Powder Injection and Powdering System of Blast Furnace of Nanchang Iorn and Steel Co.,Ltd

在南 钢 高 炉喷 煤 制 粉系 统 改 造 工 程中 ，对 原 工 艺 流 程进 行 了 简 化 及合 理化。工 程投产后 ，运行指 标良好， 制粉能力 提 高５０ ％ ， 能 耗下 降， 维护 简单 ，易 于操 作， 煤粉 排 放浓度低于 国家标 准。

During remaking the coal powder injection and powdering system of blast furnace of Nanchang iron and steel Co.,Ltd,we simplified and rationalized the alreadly existing technological process and removed some unrational equipments.When the remaked system went into operation ,we got good operation index.The powdering capacity increased 50%,the energy consumption decreased and the coal powder discharge rate was bleow the national standard.