【摘要】 研究了焦炭在高炉内的破坏机理.对焦炭在高炉下部高温区CO₂溶解反应和风口前循环区焦炭迅速磨损及粉焦生成的关系进行了探讨,同时对我国几座大高炉用焦炭的热转鼓强度按日本大分厂规程进行了检验,根据以上的研究与检验结果,建议新建巨型高炉所用焦炭应注意适当配煤并保证灰分不高于12%.更多还原

【Abstract】 The mechanism of deterioration of coke in the blast furnace has been studied. The reactivity of coke in the lower part of the furnace and the deterioration of coke by the circulating movement in the raceway are the main causes for the production of coke powder. Hot drum test for cokes in several of our large blast furnaces have been made according to the test methods of Oita Works in Japan. Based upon the causes of coke deterioration in the blast furnace and the hot drum test results, it is proposed that the coke for modern ultra large blast furnaces should be made from an appropriate coking coal mixture and with a ash content not more than 12%.更多还原