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冷轧盐酸再生装置在生产时产生大量的废气,废气中含有氧化铁粉粉尘和氯化氢,对环境造成污染,如何在尽可能低的维护成本条件下,控制好两者的排放浓度,是废酸再生设备维护的难点和重点,对5号冷轧机废酸再生机组从设备的配置上和工艺上做了针对性改进,采用分体式预浓缩器、吸收塔内采用规整式填料,同时采用盐酸回流控制模式,取得较好的效果。
The cold-reclaimed hydrochloric acid regenerator produces a large amount of exhaust gas during production, the iron oxide dust and hydrogen chloride are contained in the exhaust gas, which pollutes the environment. How to control the emission concentration of both in the lowest possible maintenance cost is waste acid Regeneration equipment maintenance of the difficulties and priorities of the No. 5 cold mill waste acid regeneration unit configuration and technology from the device to do a targeted improvement, the use of split pre-concentrator, the absorption tower using structured packing, while using hydrochloric acid Return control mode, to achieve better results.