Ceramic membrane and filtering device

Abstract

The invention relates to a ceramic membrane and a filtering device. In the process that raw material liquid enters from one end of a first inner hole and flows to the other end of the first inner hole, a first turbulent flow convex part has a turbulent flow effect on the raw material liquid, so that the raw material liquid forms an accelerated spiral liquid flowing state in the first inner hole, the turbulent kinetic energy of the liquid can be greatly improved, the inner surface of the first inner hole is in a working state of spirally, upwards and tangentially filtering the raw material liquid, and the working state is beneficial to self-cleaning of the membrane layer in the filtering process of the raw material liquid, so that impurity deposition on the inner surface of the membrane layer can be greatly reduced, and the anti-pollution capacity of the ceramic membrane is improved. Besides, as the hole wall of the first inner hole is provided with the first turbulent flow convex part, the surface area of the first inner hole of the membrane layer is equivalently increased, specifically, compared with a traditional ceramic membrane, the surface area of the membrane layer can be increased by 10%-20% under the same size, the filtering effect can be improved, the size of membrane equipment can be reduced under the requirement of the same filtering area, and meanwhile, good economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of filter devices, in particular to a ceramic membrane and a filter device. Background technique [0002] With the development of technology in the water treatment industry, ceramic membrane technology has emerged. Ceramic membranes, also known as inorganic ceramic membranes, are asymmetric membranes prepared from inorganic ceramic materials through special processes. Ceramic membranes can be divided into tubular ceramic membranes and flat ceramic membranes according to their shape. Wherein, the tubular ceramic membrane may be, for example, a circular, elliptical, square or other shaped ceramic membrane in cross-section perpendicular to its axial direction. The ceramic membrane is provided with a first inner hole. The inner wall of the first inner hole is a membrane layer. The inner surface of the membrane layer is smooth and densely covered with micropores. Under the action of pressure, the raw material l...

AI Technical Summary

Problems solved by technology

However, when the ceramic membrane is used for a period of time, the filtration performance and filtration efficiency of the ceramic membrane will decrease, and the preset requirements cannot be met.

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