一、焦炭预热器 (一)焦炭预热器是利用鼓风炉煤气、在燃烧室内以理論需用空气量燃烧所得的热气流作介质,将焦炭预热至800～850℃。冷焦用箕斗提升机由炉顶加入,热焦用輥式排料器从预热器底部排出。预热器内装有Co~(60)放射性同位素探测器,以检测炉内料面高度,当料面降低时,探测器发出信号,並与冷焦箕斗 First, the coke preheater (A) coke preheater is the use of blast furnace gas, the combustion chamber to the theoretical amount of air required for combustion of hot air as a medium, the coke preheated to 800 ~ 850 ℃. Cold coke skip elevator by the top of the furnace, hot coke roller discharge from the bottom of the preheater. Co ~ (60) radioisotope detector is installed in the preheater to detect the height of the material in the furnace. When the material level is lowered, the detector signals and cools the cold coke