Changing acid production from pyrite to zinc concentrate
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Recently, I came across a project where, due to changes in raw materials, the client requested that the existing sulfuric acid production process using pyrite be replaced with one using zinc concentrate, while reusing the existing equipment. Therefore, I have a question: In the process of producing acid from raw pyrite, the ash collected by the boiler is cooled by spraying water using a drum-type slag cooler ； The ash collected by cyclone dust collectors and electrostatic precipitators is cooled using a wetting drum. After converting it to acid production using zinc concentrate, the wetting drums are clearly no longer usable (zinc oxide dust is highly sticky, and water cooling will cause it to stick firmly to the equipment). So what method should be used to cool the ash?
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