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       脱酸塔是油脂精炼工艺中重要的设备，它的作用主要是脱除毛油中的游离脂肪酸。脱酸塔的上层是填料层，下部为层板式结构。

       Deacidification tower is an important equipment in the oil refining process, and its main role is to remove the free fatty acids in the crude oil. The upper layer of the deacidification tower is the packing layer, and the lower part is the layer slab structure.