Novel flotation column serial connection test system for improving flotation granularity upper limit

Abstract

The invention relates to a novel flotation column serial connection test system for improving the flotation granularity upper limit. The equipment of the system comprises a fed material stirring barrel, a feeding pump, a feeding pressure meter, a froth generator, a primary-section foam enriching chamber, a lower catheter, a spray type flotation column chamber, a primary-section tailing box, a secondary-section foam enriching chamber, a column flotation chamber, a rotary flow sorting chamber, a circulation ore pulp pump, a circulation pressure meter, a froth generator, a secondary-section tailing box and an FCMC cyclo-microfroth flotation column, wherein a spray type flotation column and the FCMC cyclo-microfroth flotation column are connected in series by the system, and the primary-section tailing is used as secondary-section fed materials. The system is favorable for the static fast flotation of preference flotation of coal with good flotation performance and the strong power efficient recovery of difficult-to-sort coal, in addition, the problem of high-concentration coal slime flotation can be perfectly solved, the recovery rate of coarse particle coal slime can be improved, and the problem of coarse particle running of coarse particle flotation can be solved.

Description

technical field [0001] The invention relates to an ore pulp flotation system, in particular to a novel flotation column series test system capable of increasing the upper limit of flotation particle size. Background technique [0002] At present, there are two main types of flotation machines commonly used in pulp flotation: FCMC cyclone micro-bubble flotation column and jet flotation column. [0003] The separation area of ​​the cyclone micro-bubble flotation column includes three parts: the selection section, the rough selection section, and the sweep section. A flushing water device and a foam collection tank are installed on the top of the selection section to improve the quality of clean coal. Adding a stabilizing device in the rough selection section can effectively reduce the intensity of turbulent flow in the column, weaken the backflow phenomenon of the fluid in the column, and thus effectively reduce the height of the column. The ore slurry is fed from 2 / 3 of the...

AI Technical Summary

Problems solved by technology

However, the improvement of the coarse-grained coal separation effect is only reflected in the second stage of the series. In the test, the coarse-grained separation effect of the single-stage flotation column and the first stage of the series are relatively poor under high concentration conditions. This shows that it is necessary to find a high-efficiency flotation column. Combination of separation equipment and cyclone micro-bubble flotation column to achieve high-efficiency recovery of coarse particles while ensuring high-concentration separation

Images