前言宣钢焦炭的抗碎强度M_(40)=78%,耐磨强度M_(10)=8%,与冶金部规定一般冶金焦指标:M_(40)>72%,M_(10)≤9%相比,应属优质焦炭.但是热态性能如何?我们进行了焦炭反应性测定,结果是:气化反应性R≤28%,反应后转鼓强度D_R≥63%.这与目前国内采用日本大分厂的指标:R<37%,D_R≥48%相比,宣钢焦炭的热态性质也是良好. 然而,宣钢焦炭在高炉冶炼进程中却受到严重破坏,这是从风口取出焦炭试样作筛 Foreword The crushing strength of declared steel coke M 40 = 78%, wear resistance M 10 = 8%, and the metallurgical department provides general metallurgical coke index: M 40 (40)> 72%, M 10 (10) %, Compared to the quality of coke should be, but the hot performance? We conducted a determination of coke reactivity, the result is: gasification reactivity R28%, after the reaction drum strength D_R63% .This is currently used in China Japan Ochanomizu indicators: R <37%, D_R ≥ 48% compared to Xuan steel coke thermal properties are good. However, declared steel coking process in the blast furnace has been severely damaged, which is removed from the tuyere test Sample for sieve