柳钢4号2 000 m3高炉炉役后期布料制度探索实践

阐述了柳钢4号2 000 m3高炉布料方式的特点。为了解决原燃料质量一般和后期炉役护炉生产条件下炉况长期稳定顺行的问题，4号高炉采用大角度、大角差结合中心加焦布料方式，其核心要点是适当压制边沿气流，发展中心气流。柳钢4号高炉生产实践表明，采用大角度、大角差结合中心加焦布料方式，边沿汽流相对较重，边沿十字测温温度在150 ℃以下，但是由于中心加焦的作用，中心煤气流较旺盛，高炉顺行状态良好。

Exploration and practice of burden distribution system in later campaign stage of No.4 blast furnace of 2 000 m3 in Liusteel

The characteristics of the burden distribution way for No.4 blast furnace of 2 000 m3 in Liusteel were elaborated. In order to solve the problem that the blast furnace condition can be stable and smooth for a long time under the conditions of the common quality of the raw and fuel material and the maintenance production in the later stage of campaign, No.4 blast furnace adopted the way to distribute with a big angle and big angle difference of burden combined with the central coke charging. The key point was to properly suppress the edge air flow and develop the central air flow. The production practice of No.4 blast furnace in Liusteel showed that adopting the way to distribute with a big angle and big angle difference of burden combined with central coke charging made the edge relatively heavy and its cross beam temperature was below 150 ℃. However, due to the effects of the central coke charging, the central gas flow was stronger and the blast furnace was in good operation.