Circulating fluidized bed flotation device for large particle recovery

The circulating fluidized bed flotation apparatus addresses low recovery and accuracy issues by using a two-stage flotation system with controlled water flows and distributor plates to enhance separation and recovery of large particles, improving efficiency and reducing energy consumption.

RU2864752C2Active Publication Date: 2026-06-29CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
RU · RU
Patent Type
Patents
Current Assignee / Owner
CHINA UNIV OF MINING & TECH
Filing Date
2024-07-27
Publication Date
2026-06-29

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Abstract

FIELD: mineral separation.SUBSTANCE: device and method for flotation with a circulating fluidized bed for the extraction of large particles. The circulating fluidized bed flotation device for extracting large particles comprises a first stage fluidized bed flotation column (100), a second stage fluidized bed flotation column (200) and a hydrocyclone (300). The first stage fluidized bed flotation column (100) and the second stage fluidized bed flotation column (200) communicate via a hydrocyclone (300). The first stage fluidized bed flotation column (100) comprises a first column body (101) and a first suspension distribution ring (102), the first suspension distribution ring (102) is placed on the upper part of the first column body (101) and communicates with the internal cavity of the first column body (101). The second stage fluidized bed flotation column (200) comprises a second column body (201) and a second suspension distribution ring (202), the second suspension distribution ring (202) is placed on the lower part of the second column body (201) and communicates with the internal cavity of the second column body (201). A hydrocyclone (300) connects the upper end of the first column body (101) and the second suspension distribution ring (202).EFFECT: increasing in the extraction of large particles during flotation.6 cl, 7 dwg
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