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青岛市双合盛窑厂职工在生产中发扬敢于革命、敢于实践的精神,试验运用立窑水泥厂的“差热煅烧”原理烧砖,解决了欠火砖(次品)多的关键问题,使红砖合格率由75%左右提高到90%以上。过去,这个厂生产的红砖总有14～15%是欠火砖。这是个长期没有解决的老问题。在去年比学赶帮运动中,有的同志提出是否可以运用水泥厂“差热煅烧”的经验来解决欠火砖的问题。当时有的干部认为烧红砖同烧水泥的设备不一样,“差热煅烧”在轮窑用不上;还有的人认为烧窑出欠火砖是不可避免的。
The workers of Qingdao Shenghe Kiln Kiln Co., Ltd. carried forward the spirit of dare to revolution and dare to practice in the production, and experimented and used the “differential heat calcination” principle of the shaft kiln cement plant to burn the bricks, solving the key problems of the lack of fire bricks (defective products). The red brick pass rate increased from about 75% to more than 90%. In the past, 14 to 15% of the red bricks produced by this factory were always underfired bricks. This is an old problem that has not been solved for a long time. In last year’s competition for learning to help, some comrades proposed whether it is possible to use the “differential heat calcination” experience of cement plants to solve the problem of underfire bricks. At that time, some cadres thought that burning red bricks was not the same as burning cement. “Differential heat calcinations” were not used in wheel kiln; others thought that it was unavoidable that firing kiln out of fire bricks.