Injektáž černého a hnědého prachového uhlí do vysoké pece s ohledem na jeho vlastnosti

Abstract

Injection of coal can replace a substantial part of metallurgical coke. The theoretical maximum when the injection of coal powder is achieved at 300 kg.t-1pig iron. Nevertheless, this quantity is dependent on the composition of coal and especially on the volatile matter content. The injection of large quantities of coal remnants of a large amount of char. Another limiting factor is the temperature in the area of raceway boundary. The temperature here would not fall below 2050 °C. During of coal powder, a bigger amount Well gases. Therefore, it is also important granulometry of ore, limestone, and coke. Injection affects many other factors such as temperature and enrichment oxygen of wind-blown and particle size of powder coal.