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阜新市煤矸石制品一厂和辽宁省建筑科学研究所协作承担的《地上隧道窑热介质定向循环和自动控制》科研项目,已于1985年在阜新市通过鉴定。该厂生产煤矸石砌块(有时也生产多孔板等预制构件),多年来在地上隧道窑中一直采用干湿热养护,在窑内两侧墙上架设4～5英寸直径的钢排管干燥,两侧底部各有一根花管,
Fuxin City coal gangue products factory and the Liaoning Provincial Institute of Building Research jointly undertake the “direct tunnel kiln heat medium oriented circulation and automatic control” research project, has passed the appraisal in Fuxin City in 1985. The factory produces coal gangue blocks (sometimes also produce prefabricated components such as perforated plates). Over the years, dry and moist heat conservation has been used in the ground tunnel kiln, and 4 to 5 inch diameter steel pipe drying is installed on both sides of the kiln walls. , each side has a flower tube at the bottom,