A neutralization gelation reaction device for manufacturing active alumina powder and an operating method thereof

By designing an active alumina powder manufacturing device with an electrically controlled telescopic platform and a synchronous belt rolling roller structure, the problems of rapid polymerization and pH imbalance of aluminum sulfate and sodium aluminate solutions were solved, achieving uniform mixing and improved stability of colloidal particles.

CN122124737APending Publication Date: 2026-06-02SHANXI JUHUA ALUMINUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANXI JUHUA ALUMINUM CO LTD
Filing Date
2026-04-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing activated alumina powder manufacturing equipment, during the neutralization and gelation reaction process, aluminum sulfate solution and sodium aluminate solution tend to rapidly polymerize to form irregular colloidal particles, resulting in damage to the integrity of the colloidal structure. Furthermore, residual solution in the infusion pipeline causes pH imbalance in the colloidal particles, affecting their stability during use.

Method used

A neutralization and gelation reaction device for manufacturing activated alumina powder is adopted. The solution flow is controlled by an electrically controlled telescopic table, residual solution is cleaned by n-heptane solution, and irregular colloidal particles are crushed by a synchronous belt and a roller structure. Combined with the design of the stirring frame and conveying roller shaft, the solution is mixed evenly and the colloidal structure is intact.

Benefits of technology

It effectively solves the problems of colloidal particle polymerization and pH imbalance, improves the stability and structural integrity of colloids, and ensures uniform mixing and molding quality of colloidal substances.

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Abstract

This invention discloses a neutralization and gelation reaction apparatus and operating method for manufacturing activated alumina powder, relating to the field of colloid processing technology. It includes a reaction body with a static spiral blade fixedly connected to its inner wall and a fixed cover fixedly connected to one side of its outer wall. An adjustment component is provided at one end of the inner cavity of the fixed cover. A support platform is fixedly connected to the bottom of the reaction body, and a placement platform is fixedly connected to the bottom of the support platform. This invention, by activating an electrically controlled telescopic platform, disengages the third liquid inlet from the blockage of the first and second liquid inlets. Subsequently, n-heptane solution is discharged into a parallel flow box through the third liquid inlet. This further solves the problem that in traditional neutralization and gelation reaction apparatuses for manufacturing activated alumina powder, residual aluminum sulfate solution and sodium aluminate solution remain in the delivery pipes and inside the apparatus, causing pH imbalance in the colloidal mixture and affecting the stability of the colloid.
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