The utility model belongs to the technical field of water treatment, in particular to a separator and bipolar membrane electrodialysis device applied to the purification of isoelectric point materials. The utility model forms an S-shaped flow channel with two ends connected with a water distribution tank by setting a horizontal grid which is continuously folded from top to bottom inside the baffle plate, thereby realizing the no-baffle design of the baffle plate to eliminate the crystal blocking point, the flow channel is not blocked, the precipitated crystal flows out directly with the feed liquid, and the equipment does not need cleaning during operation, and has no scaling problem. In the process of producing organic weak acid and organic weak alkali, the problems of traditional electrodialysis diaphragm being easily blocked and in series chamber are solved, and the scaling problem and cleaning requirement in the operation of equipment are reduced; the bipolar membrane electrodialysis device provided by the utility model improves the conversion rate in the process of preparing acid and alkali by bipolar membrane electrodialysis, and at the same time reduces the conversion rate. Operation energy consumption and labor costs; improve the quality of acid and base preparation, truly achieve clean production, high efficiency and energy saving, and zero emissions.
【技术实现步骤摘要】
一种应用在等电点物料提纯的隔板及双极膜电渗析装置
本技术属于水处理
,尤其是涉及一种应用在等电点物料提纯的隔板及双极膜电渗析装置。
技术介绍
针对带有羧基和胺基的物料,在强酸或强碱的条件下溶于水,但是,该物料在它等电点时形成不溶于水的内盐。常规生产工艺是通过加入强酸或强碱调节PH在该物料等电点的时候析出晶体,水洗得到物料产品。但是,得到上述产品,需要投入大量酸或碱并产生高盐废水,传统的生产工艺不仅成本高,而且对环境造污染成极大影响。电渗析是一种基于离子选择透过性交换膜的新兴膜分离技术,主要包括极板、电极、离子交换膜、隔板以及夹紧装置等。隔板作为电渗析设备中必不可少的构件,其作用有:1)隔离和支撑阴、阳离子交换膜;2)与离子交换膜一起构成料液流动通道,使料液按规定方向流动,从而形成浓水隔室、淡水隔室;3)使液流均匀分布,同时能够促使液流搅拌混合,在一定程度上减小浓度扩散层厚度,并强化传质过程。双极膜是一种新型离子交换复合膜,它在电场作用下其中间层发生水解离,产生H+和OH-离子。而双极膜电渗析技术可以实现即时酸/碱的生产/再生,或者酸化和/或碱化。隔板由四部分构成:分别是布水槽、进出水布水孔、网格和密封周边。隔板网又叫湍流促进器,能有效地减小浓度扩散厚度。布水槽结构对隔室水流分配的均匀性和水流压头损失起重要作用。一般来说,布水槽阻力大些,布水均匀性较好,但容易被异物堵塞。通过良好的隔板设计,可有效改善双极膜电渗析器的运行性能。Z.Cao等(CaoZ,WileyDE,FaneAG.CFDsimulationsofnet-typeturbulencepro ...
【技术保护点】
1.一种应用在等电点物料提纯的隔板,其特征在于,所述隔板沿着长度方向的两端设有导液孔,所述导液孔的下方或上方间隔地设有布水槽,所述布水槽与导液孔相连通,隔板沿着长度方向的两端的布水槽之间的区域内设有自上而下连续折向交错的横栅,自上而下连续折向交错的横栅在隔板内形成两端连通布水槽的S形流道。
【技术特征摘要】
2017.10.11 CN 20172129165011.一种应用在等电点物料提纯的隔板,其特征在于,所述隔板沿着长度方向的两端设有导液孔,所述导液孔的下方或上方间隔地设有布水槽,所述布水槽与导液孔相连通,隔板沿着长度方向的两端的布水槽之间的区域内设有自上而下连续折向交错的横栅,自上而下连续折向交错的横栅在隔板内形成两端连通布水槽的S形流道。2.根据权利要求1所述的应用在等电点物料提纯的隔板,其特征在于,隔板沿着长度方向的上下两端设有相同数目导液孔和相同数目的布水槽。3.根据权利要求1所述的应用在等电点物料提纯的隔板,其特征在于,同一端的布水槽...
【专利技术属性】
技术研发人员:丁武龙,王宇星,
申请(专利权)人:浙江迪萧环保科技有限公司,
类型:新型
国别省市:浙江,33
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