Float separation instrument for low-grade phosphorite

By integrating microbubble mineralization and flotation components, and combining high-speed rotary crushing and ultrasonic cleaning, the problems of low recovery rate of fine particles and difficulty in foam cleaning in low-grade phosphate rock flotation are solved, achieving efficient and clean phosphate rock separation.

CN121607265APending Publication Date: 2026-03-06HUNAN PROVINCIAL URBAN GEOLOGICAL SURVEY & MONITORING INST
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Patent Information

Application Number
CN202610040516.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-13
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing flotation equipment for low-grade phosphate rock suffers from problems such as low recovery rate of fine-grained apatite, easy mineral loss due to mechanical agitation, difficulty in cleaning impurities trapped in the foam layer, large equipment footprint, and high cost.

Method used

The system employs microbubble mineralization and flotation components, combined with a high-speed rotating crusher and ultrasonic cleaner, to generate microbubbles that efficiently collide and adhere to minerals. Mechanical defoaming is achieved through a defoaming roller, and the entire system is integrated into a single tank for efficient sorting.

Benefits of technology

It improves the recovery rate of fine-grained phosphate minerals and the grade of concentrates, simplifies the equipment structure, reduces the footprint and cost, and achieves clean and efficient foam product recycling.

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Abstract

The invention relates to the technical field of phosphorite flotation, in particular to a low-grade phosphorite float separation instrument which comprises a barrel body, a microbubble mineralization assembly, a flotation assembly and a driving assembly, the barrel body is of a cylindrical hollow structure, the microbubble mineralization assembly is fixedly installed at the lower end in the barrel body, and the microbubble mineralization assembly comprises a liquid inlet end and a dispersion end; the flotation assembly is fixedly installed in the middle of the interior of the barrel body, and the dispersion end of the microbubble mineralization assembly is connected with the middle of the flotation assembly; through the designed micro-bubble mineralization assembly, a dual-bubble generation mechanism of preliminary dispersion of venturi negative-pressure air suction and continuous release of micro-bubbles by a microporous wall is integrated, and a high-strength turbulent flow field is generated in combination with the crushing frame rotating at a high speed, so that high-probability and high-strength collision and adhesion of micro-bubbles and micro-fine particle phosphorite are forcibly promoted; the problem that micro-fine particles are difficult to recycle in conventional flotation is solved.
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