Phosphate ore photoelectric beneficiation and separation process

Abstract

The invention provides a phosphate ore photoelectric separation process, phosphate raw ore screening; the ore obtained by screening is transported to the photoelectric sorting machine through a belt conveyor, and the ore and material are identified through X-ray perspective, and the X-ray is used to detect the ore. Each piece of ore is identified, the data is collected by the detector, and the ore and the waste rock are identified and distinguished through the intelligent algorithm; after the identification by the photoelectric sorter, the high-speed air gun is used to accurately hit the concentrate and the tailings, and the completion can be completed Photoelectric beneficiation of phosphate rock. In the phosphate ore screening process, the raw ore is crushed and vibrated to obtain ores with a particle size > 50 mm, which are then crushed again, and the ores with a particle size of 20-50 mm are sent to a photoelectric sorter for photoelectric sorting. At present, it only targets the high-magnesium phosphate rock with medium phosphorus layer, and the separation effect is remarkable. If the grade of selected raw ore is 17.5%, the yield can reach more than 40%, and the recovery rate is high.

Description

technical field [0001] The invention relates to a phosphate ore beneficiation process, specifically adopting photoelectric technology to realize the separation of phosphate ore. Background technique [0002] At present, the most commonly used beneficiation methods for phosphate rock are gravity beneficiation and flotation. The process of gravity beneficiation is simple and the processing capacity is large, but the beneficiation recovery rate is low; Chemicals will cause certain pollution, environmental protection issues are difficult to deal with, and the requirement for tailings to be wet-drained and stacked will greatly limit the establishment of flotation plants. [0003] Flotation, also known as flotation beneficiation, is the most widely used and most effective mineral processing method for the separation of fine particles and fine particle materials. According to the different properties of the ore surface, according to the different effects of the ore on water, air bu...

AI Technical Summary

Problems solved by technology

[0004] Disadvantages of flotation: 1. The use of various chemicals can easily cause environmental pollution

[0005] 2. Need finer grinding particle size

[0006] 3. High cost, many influencing factors and high process requirements

[0008] Disadvantages of re-election: 1. The equipment wears a lot;

[0009] 2. The amount of suspension is relatively large;

[0010] 3. Large power consumption and high power consumption

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