Internal expansion type metal porous adsorption ball and preparation process thereof

Abstract

The invention discloses an internal expansion type metal porous adsorption ball and a preparation process thereof, and belongs to the field of adsorption ball preparation. A hollow ceramic shell is matched with an elastic internal expanding mechanism which is initially gathered; injecting of a metal powder mixed solution into the hollow ceramic shell is carried out; heating and melting of solid positioning soluble capsules are carried out; expansion of the elastic internal expanding mechanism formed by gathering a plurality of elastic porous metal foam strips in the hollow ceramic shell is carried out; the bearing effect on the metal powder mixed liquid is favorably achieved; the mechanical strength and the injection molding bonding strength of the adsorption ball are improved; the adsorption specific surface area is enlarged; a plurality of oval bulges filled with activated carbon powder are matched; on one hand, a solid adsorption sphere is effectively prevented from being formed after preparation is completed; on the other hand, high-pressure gas is introduced, the activated carbon powder in the oval-shaped bulge is uniformly diffused into the metal powder mixed liquid through gas flow, the using effect of the adsorption ball is effectively improved, the flowing gas can easily form a porous structure through the metal powder mixed liquid, and the through hole rate of the adsorption ball is increased.

Description

technical field [0001] The invention relates to the technical field of preparation technology of adsorption spheres, and more specifically relates to an internally expanded metal porous adsorption sphere and its preparation technology. Background technique [0002] Traditional adsorption materials used for waste gas and wastewater filtration mostly use porous ceramics and ceramic filter elements as carriers, combined with natural porous structures such as diatomaceous earth and activated carbon, to remove impurities and macromolecular organics in water and air. [0003] The traditional preparation methods of existing spherical adsorbents are organic template method, sol-gel method, co-condensation method and so on. However, most of the spherical adsorbents prepared by them are solid balls, and the adsorption performance is often not ideal, while the porous materials with large specific surface area often have strong adsorption capacity. And as we all know, because powder si...

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Problems solved by technology

However, the spherical adsorbents prepared by them are mostly solid balls, and the adsorption performance is often not ideal, while the porous materials with large specific surface area often have strong adsorption capacity.

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