Hollow flat plate ceramic membrane support body and preparation method thereof: Fid-Bau Portal

Hollow flat plate ceramic membrane support body and preparation method thereof

YIN XIAOQIN

The invention discloses a hollow flat plate ceramic membrane support body and a preparation method thereof. The preparation method comprises the following steps that: (1) aggregate, a pore forming agent, a binder and water are well mixed, granulated, dried, and subjected to dry pressing molding to obtain a flat plate ceramic membrane support body blank with bulges on the surface and a flat plate ceramic membrane support body blank with a flat surface, wherein the bulges are uniformly distributed on the upper surface of the flat plate ceramic membrane support body blank, are consistent with or vertical to the length direction of the support body, and are arranged in parallel at intervals in the length direction and the width direction of the support body; (2) after the bulges are coated with slurry, the flat plate ceramic membrane support body blank with bulges and the flat plate ceramic membrane support body blank with a flat surface are spliced together; and (3) drying, glue discharging and sintering are carried out on the spliced support body blank to obtain a hollow flat plate ceramic membrane support body. The preparation method is simple, efficient, low in cost and high in yield. The hollow flat plate ceramic membrane support body has the characteristics of high porosity, high breaking strength and large filtration flux.

本发明公开了一种中空平板陶瓷膜支撑体及其制备方法。所述制备方法包括如下步骤：(1)将骨料、造孔剂、粘结剂和水混匀造粒、干燥后，干压成型，得到表面具有凸起物的平板陶瓷膜支撑体坯体和表面平整的平板陶瓷膜支撑体坯体；所述凸起物均匀分布在平板陶瓷膜支撑体坯体的上表面，与支撑体长度方向一致或垂直，且在支撑体长度方向和宽度方向上呈现间隔并列排布；(2)将凸起物上涂覆浆料后与表面平整的平板陶瓷膜支撑体坯体进行拼接；(3)将拼接后的支撑体坯体经过干燥、排胶、烧结得到中空平板陶瓷膜支撑体。本发明所述制备方法简单高效，成本较低，良品率高。所述中空平板陶瓷膜支撑体具有孔隙率高、抗折强度高、过滤通量大的特点。

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