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鞍钢五炼焦的贮煤塔已使用25年。由于工艺改造,须将贮煤塔的出料口抬高1.61米。这样,原有煤仓的底板必须全部拆除,竖壁(深梁)的下部主筋也将全部拆除,重新进行封底。但煤塔出料口虽然只提高1.61米,而竖壁却需打掉6.4米,原因是原有的漏斗是在槽形漏斗上用混凝土垫成的锥形漏斗,这次改造要用双曲线漏斗,比原有的漏斗长得多,并且要有压缩空气的入口,因此必须露出一大段。露出的漏斗为了防止煤受冻起见,须在漏斗口标高处设置防寒平台,并保证平台上人员可以自由
Angang Group 5 coking coal storage tower has been used for 25 years. Due to technological transformation, the discharge port of the coal storage tower must be raised by 1.61 meters. In this way, the floor of the original coal bunker must be completely removed, and the lower main bar of the vertical wall (deep beam) will also be completely removed, and the back cover will be renewed. However, although the discharge port of the coal tower only increased by 1.61 meters, the vertical wall had to be knocked out 6.4 meters. The reason was that the original funnel was a tapered funnel made of concrete in the grooved funnel. The transformation was to use a hyperbolic curve. The funnel, which is much longer than the original one, and has an inlet for compressed air, so a large section must be exposed. In order to prevent the coal from freezing, the exposed funnel must be provided with a cold-proof platform at the elevation of the funnel, and ensure that the personnel on the platform are free.