The medicament compatible treatment system for chromium-free passivation tank of aluminium alloy includes 7# chromium-free passivation tank and reverse series water-saving system; the reverse series water-saving system consists of a water-washing compatible subsystem with no less than one non-flowing water-washing tank and a medicament recovery subsystem with no less than one non-flowing water-washing tank; the water-washing compatible subsystem and the medicament recovery subsystem are in reverse series as a whole. The water inlet is connected to the water inlet through the water inlet control valve, and the 7# chromium-free passivation tank is arranged between the water washing compatibility subsystem and the reagent recovery subsystem. The invention provides a chromium-free passivation tank medicament compatible treatment system for aluminium alloy, which is based on medicament compatibility and consists of reverse series connection of cleaning water, medicament interception and recovery configuration to realize medicament compatibility and water saving system.
【技术实现步骤摘要】
铝合金无铬钝化槽药剂兼容处理系统
本专利技术涉及铝材表面处理
,尤其涉及铝合金无铬钝化槽药剂兼容处理系统。
技术介绍
标准铬化线槽位布置如图3所示,包括1#酸性除油槽、2#流动水洗槽、3#流动水洗槽、4#铬化槽、5#流动水洗槽和6#流动水洗槽。其中,1#酸性除油槽和4#铬化槽为工作槽,2#、3#和4#、5#为两套独立的流动水洗槽,即两个药剂槽,两套流动水洗槽,自来水2进2出。标准铬化线槽位布置有如下不足:1、1#酸性除油槽去毛刺能力不够。尽管本槽添加有50-80g/L硫酸(98%),25-50g/L磷酸(85%)和10-20g/L氢氟酸(50%),可去部分毛刺,但实际生产中,仍有大量毛刺突出粉末涂层的次品需要返工。为此,铝材厂专门抽调工人,用布轮机先去毛刺,再除油、铬化,费时费力,功效低下;2、4#铬化槽含铬酐和氟,污染5#、6#流动水洗槽,增加废水处理成本;3、4#铬化槽含铬酐和氟,铝材起挂时,含铬酐和氟化氢的酸雾污染车间,严重危害工人健康;4、4#铬化槽含铬酐,铝材铬化后表面含六价铬,这样的铝型材进入千家万户,对用户的潜在危害,其后果非常恐怖;几十年后, ...
【技术保护点】
1.铝合金无铬钝化槽药剂兼容处理系统,其特征在于:包括7#无铬钝化槽和反向串联节水系统;所述反向串联节水系统由设置有不少于1个不流动水洗槽的水洗兼容子系统和设置有不少于1个不流动水洗槽的药剂回收子系统组成;所述水洗兼容子系统和所述药剂回收子系统整体反向串联设置,其水流动方向的始端设有进水口,所述进水口通过进水控制阀门连接于进水通道;所述7#无铬钝化槽设置于所述水洗兼容子系统和所述药剂回收子系统之间。
【技术特征摘要】
1.铝合金无铬钝化槽药剂兼容处理系统,其特征在于:包括7#无铬钝化槽和反向串联节水系统;所述反向串联节水系统由设置有不少于1个不流动水洗槽的水洗兼容子系统和设置有不少于1个不流动水洗槽的药剂回收子系统组成;所述水洗兼容子系统和所述药剂回收子系统整体反向串联设置,其水流动方向的始端设有进水口,所述进水口通过进水控制阀门连接于进水通道;所述7#无铬钝化槽设置于所述水洗兼容子系统和所述药剂回收子系统之间。2.根据权利要求1所述的铝合金无铬钝化槽药剂兼容处理系统,其特征在于:所述药剂回收子系统由8#不流动水洗槽、9#不流动水洗槽和10#不流动水洗槽组成,所述8#不流动水洗槽、所述9#不流动水洗槽和所述10#不流动水洗槽依次串联,所述8#不流动水洗槽的另一槽端串联于所述水洗兼容...
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