Preparation process of porous hollow ceramic adsorption ball

Abstract

The invention discloses a preparation process of a porous hollow ceramic adsorption ball, belongs to the field of ceramic materials. The preparation process of the porous hollow ceramic adsorption ball can obtain a hollow porous ceramic ball through the cooperative use of a reticular steel ball and an internal false solid bag. Compared with the prior art, the process can effectively avoid the problems that the ceramic utilization rate is low due to the fact that the porosity of the center of the ball body is small, waste of ceramic materials is reduced, meanwhile, inert gas is introduced intothe ceramic ball semi-finished product in the preparation process, the reinforcing hard ball collides with the inner wall of the ceramic ball semi-finished product, reinforcing fiber particles are released, and in combination with rapid cooling operation, the reinforcing fiber particles enter the pores of a ceramic material layer along with the inert gas and are fixed, on one hand, the inert gas can increase the pore volume in the center of the ceramic material layer, so that the uniformity of the pores of the obtained porous hollow ceramic adsorption ball is improved, and on the other hand, the reinforcing fiber particles can remarkably improve the adsorbability of the interior of the ceramic material layer to oil stains.

Description

technical field [0001] The invention relates to the field of ceramic materials, in particular to a preparation process of porous hollow ceramic adsorption balls. Background technique [0002] Ceramic materials refer to a class of inorganic non-metallic materials made of natural or synthetic compounds through shaping and high-temperature sintering. It has the advantages of high melting point, high hardness, high wear resistance and oxidation resistance. It can be used as structural material, tool material, and because ceramics also have some special properties, they can also be used as functional materials. [0003] Ceramic materials have the following properties: [0004] Mechanical properties, ceramic materials are the materials with the best rigidity and the highest hardness among engineering materials, and their hardness is mostly above 1500HV. Ceramics have high compressive strength, but low tensile strength, poor plasticity and toughness. [0005] Thermal properties...

AI Technical Summary

Problems solved by technology

[0011] Aiming at the problems existing in the prior art, the object of the present invention is to provide a preparation process for porous hollow ceramic adsorption balls, which can obtain hollow porous ceramic balls through the cooperative use of mesh steel balls and inner false solid capsules, which are relatively Compared with the solid ceramic ball in the prior art, it can effectively avoid the problem of low ceramic utilization rate caused by the small amount of pores in the center of the sphere, and reduce the waste of ceramic materials. The inert gas is injected to make the reinforcing hard ball collide with the inner wall of the semi-finished ceramic ball and release the reinforcing fiber particles. With the operation of rapid cooling, the reinforcing fiber particles enter the pores of the ceramic material layer with the inert gas and are fixed. On the one hand, the inert gas can Increase the amount of pores in the center of the ceramic material layer, thereby improving the uniformity of the pores of the obtained porous hollow ceramic adsorption balls. On the other hand, reinforcing fiber particles can significantly improve the adsorption of oil stains inside the ceramic material layer

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