Reactor for preparing inorganic polymeric flocculant from fly ash

By designing a multi-channel reactor and an internal grinding chamber, the problem of difficult aluminum leaching from fly ash was solved, achieving efficient aluminum leaching and improved product quality. This also improved the particle size and reactivity of fly ash and enhanced the mass transfer process.

CN224127306UActive Publication Date: 2026-04-17SHAANXI QINLONG ELECTRIC POWER CO LTD +1
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Patent Information

Application Number
CN202520949685.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-04-17
Estimated Expiration
2035-05-14

AI Technical Summary

Technical Problem

In existing processes for producing inorganic flocculants from fly ash, aluminum has low reaction efficiency and is difficult to dissolve, resulting in low aluminum chloride content in the product and poor economic efficiency. Furthermore, aluminum in fly ash mainly exists in crystalline and glassy forms, making it difficult to dissolve efficiently.

Method used

A multi-channel reactor is designed, including a first channel, a second channel, a third channel, and a fourth channel. An inner grinding chamber and an outer grinding chamber are set up. Fly ash, inorganic acid, and co-solvent are injected into the inner grinding chamber through a nozzle assembly using an ultra-high pressure air pump. Combined with multi-layer baffles, the materials are mixed and ground to achieve multi-level material input and mixing, thereby promoting chemical reactions.

Benefits of technology

It improves the leaching rate of aluminum in fly ash, enhances product quality, improves the particle size and surface reactivity of fly ash particles, strengthens the mass transfer process, and increases the leaching rate of valuable elements such as aluminum and iron.

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Abstract

The utility model relates to a reactor for preparing an inorganic polymeric flocculant from fly ash. The reactor comprises a first channel, a second channel, a third channel, a fourth channel, an inner grinding cavity and an outer grinding cavity, the second channel is arranged around the periphery of the first channel; the third channel is arranged around the periphery of the second channel; the fourth channel is arranged around the periphery of the third channel; the inner grinding cavity is arranged below the first channel, the second channel, the third channel and the fourth channel and is communicated with the first channel, the second channel and the third channel; and the outer grinding cavity is arranged below the inner grinding cavity and is communicated with the inner grinding cavity. According to the design of the reactor disclosed by the utility model, multi-level material input and mixing are realized. The mixing uniformity of materials can be improved, and the full proceeding of chemical reaction is promoted.
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