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Preparation method of large-caliber columnar ceramic membrane support body and ceramic membrane product thereof
The invention discloses a preparation method of a large-caliber columnar ceramic membrane support body. The preparation method comprises the following steps: taking a monomer formed by symmetrically and equally dividing a large-caliber columnar ceramic membrane along the axial direction as a support body unit, firstly preparing the support body unit by extrusion molding; and then splicing and combining to form a ceramic membrane structure with a columnar structure and gaps among the support body units as penetrating fluid channels. In addition, the invention further discloses a large-caliber columnar ceramic membrane product and a preparation method thereof. The large-caliber ceramic membrane is formed by dividing the large-caliber ceramic membrane into the small support body units, carrying out extrusion molding and then combining the small support body units so that the process difficulty of preparing the large-caliber ceramic membrane is reduced, and meanwhile, membrane defects arealso avoided. According to the ceramic membrane configuration adopted by the invention, not only is the process of processing the permeation channels in the later period of the ceramic membrane reduced, but also the permeation distance of the permeation liquid at the membrane surface of the middle pore channel of the large-diameter ceramic membrane is greatly reduced, and compared with the existing large-caliber ceramic membrane configuration, the permeation flux of the large-caliber ceramic membrane is effectively improved.
本发明公开了一种大口径柱状陶瓷膜支撑体的制备方法，以对大口径柱状陶瓷膜沿轴向对称均分形成的单体为支撑体单元，采用挤出成型首先制备支撑体单元，然后拼接组合成柱状结构的、支撑体单元之间的间隙为渗透液通道的陶瓷膜构型。此外，还公开了一种大口径柱状陶瓷膜制品及其制备方法。本发明通过分成小块支撑体单元并进行挤出成型，然后再组合形成大口径的陶瓷膜，减少了制备大口径陶瓷膜的工艺难度，同时也避免了膜缺陷的产生。本发明采用的陶瓷膜构型，不仅减少了陶瓷膜后期加工渗透通道的工艺，而且大大减少了大口径陶瓷膜中间孔道膜面处的渗透液的渗透距离，与现有的大口径陶瓷膜构型相比，有效提高了大口径陶瓷膜的渗透通量。
Preparation method of large-caliber columnar ceramic membrane support body and ceramic membrane product thereof
The invention discloses a preparation method of a large-caliber columnar ceramic membrane support body. The preparation method comprises the following steps: taking a monomer formed by symmetrically and equally dividing a large-caliber columnar ceramic membrane along the axial direction as a support body unit, firstly preparing the support body unit by extrusion molding; and then splicing and combining to form a ceramic membrane structure with a columnar structure and gaps among the support body units as penetrating fluid channels. In addition, the invention further discloses a large-caliber columnar ceramic membrane product and a preparation method thereof. The large-caliber ceramic membrane is formed by dividing the large-caliber ceramic membrane into the small support body units, carrying out extrusion molding and then combining the small support body units so that the process difficulty of preparing the large-caliber ceramic membrane is reduced, and meanwhile, membrane defects arealso avoided. According to the ceramic membrane configuration adopted by the invention, not only is the process of processing the permeation channels in the later period of the ceramic membrane reduced, but also the permeation distance of the permeation liquid at the membrane surface of the middle pore channel of the large-diameter ceramic membrane is greatly reduced, and compared with the existing large-caliber ceramic membrane configuration, the permeation flux of the large-caliber ceramic membrane is effectively improved.
本发明公开了一种大口径柱状陶瓷膜支撑体的制备方法，以对大口径柱状陶瓷膜沿轴向对称均分形成的单体为支撑体单元，采用挤出成型首先制备支撑体单元，然后拼接组合成柱状结构的、支撑体单元之间的间隙为渗透液通道的陶瓷膜构型。此外，还公开了一种大口径柱状陶瓷膜制品及其制备方法。本发明通过分成小块支撑体单元并进行挤出成型，然后再组合形成大口径的陶瓷膜，减少了制备大口径陶瓷膜的工艺难度，同时也避免了膜缺陷的产生。本发明采用的陶瓷膜构型，不仅减少了陶瓷膜后期加工渗透通道的工艺，而且大大减少了大口径陶瓷膜中间孔道膜面处的渗透液的渗透距离，与现有的大口径陶瓷膜构型相比，有效提高了大口径陶瓷膜的渗透通量。
Preparation method of large-caliber columnar ceramic membrane support body and ceramic membrane product thereof
一种大口径柱状陶瓷膜支撑体的制备方法及其陶瓷膜制品
WANG XIA (author) / CHANG QIBING (author) / HAO ENQI (author) / HE SHIBIN (author) / YANG KE (author) / WANG YONGQING (author)
2021-01-05
Patent
Electronic Resource
Chinese
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