Flotation column enhanced separation device with packing structure and separation method

Abstract

The invention discloses a floatation column intensified separation device with a filler structure. The floatation column intensified separation device with the filler structure comprises a hollow column body, wherein a foam collection device is arranged at the top of the column body; a filler, a middling mineralization pipe, a screen plate and a middling collection hopper are sequentially arranged inside the column body from top to bottom; a discharge hole connected with a tailing pipe is formed in the bottom of the column body; the middling collection hopper is connected with a middling nozzle through a middling circulating pulp pump; the middling nozzle is arranged at the top of the middling mineralization pipe; an air inlet pipe is arranged at the middle upper part of the middling mineralization pipe; and a crude ore feeding pipe is arranged at the upper part of the column body. The invention further provides an ore separation method. According to the separation device and the separation method, static separation is achieved on the mineralized mineral particles, the backmixing and inclusion of mineral impurities and fine silt which are not floatable are reduced, and the quality of a concentrate product is improved.

Description

technical field [0001] The invention relates to the field of mineral processing, in particular to a flotation column intensified separation device with a packing structure and a separation method, which can be applied to the separation operation of middle and low-grade collophanite, other non-metallic ores and metal ores. Background technique [0002] Phosphate rock resources are precious non-renewable resources. my country is relatively rich in phosphor rock resources, with reserves of 16.798 billion tons, but the average grade of phosphate rock is only 17%. Therefore, the beneficiation of middle and low-grade collophanite with the characteristics of "poor, miscellaneous, and fine" in my country has become a research hotspot in recent years. As a traditional flotation equipment, the mechanical stirring flotation machine can no longer meet the requirements of these phosphate ore beneficiation work. The flotation column has the characteristics of simple structure, convenient...

AI Technical Summary

Problems solved by technology

In the actual separation and production of low- and medium-grade collophosite, the phosphorus minerals and carbonate minerals that are sorted after pretreatment have a high degree of dissociation, and the quartz-feldspar-clay and iron-carbon minerals However, the degree of dissociation is relatively low, which results in high requirements for turbulent flow mineralization and static separation environment in the separation operation. It is difficult to ensure the foam in the static separation process by simply setting the static medium partition and cyclone separation. The height of the layer and the size of mineralized bubbles are uniform, and there is a certain amount of entrainment and back-mixing of non-floatable mineral fine mud, and the separation index is unstable.

Images