Column type short-stage tungseten crude grading process and equipment

Abstract

The invention relates to a post-type tungsten selecting method, wherein it uses two cyclone-static foam float selecting posts as selecting devices, with three slurry barrels, liquid level controller and mine circulator. It first feeds the mine into slurry barrel, adds float select agent to mix the slurry; feeds the slurry via feeding pump to the rough float selecting post to be separated and selected; then the rough selected and fine selected mines flow into the fine selecting float selecting post, and the rough selected mine is discharge at the bottom of rough selecting float selecting post, to be selected in the fine selecting post; and the fine selected mine is discharged at the upper fine mine outlet, and the tail mine is discharge at the bottom outlet into mine buffer pool, to be fed back to the slurry barrel. The invention has low cost and high efficiency.

Description

technical field [0001] The invention relates to a tungsten mineral flotation process, and is especially suitable for the short flow separation of black and white tungsten mixed flotation. technical background [0002] my country is extremely rich in tungsten resources, and its reserves and mining scale rank first in the world. There are more than 20 kinds of tungsten minerals that have been discovered so far, among which wolframite and scheelite are the most valuable in industry, and they are often associated with a variety of useful minerals such as: bismuthite, aluminum pyrite, pyrite, pyrrhotite , cassiterite, etc., gangue minerals are usually fluorite, garnet, calcite, quartz, feldspar, etc. Tungsten minerals and other minerals usually have close symbiosis, fine and uneven distribution, and the floatability of various gangue minerals and tungsten minerals is similar, while the floatability of black and white tungsten is quite different. Flotation conditions are differen...

AI Technical Summary

Problems solved by technology

However, with the gradual scarcity of tungsten ore resources in recent years, coupled with the increasingly higher requirements of users for tungsten products, the GY flotation tungsten process has gradually highlighted its shortcomings: 1) The efficiency of the selection operation and the enrichment ratio Low

Although the multi-stage flotation machine is used for beneficiation, it is still difficult to obtain concentrates with stable quality; 2) The consumption of chemicals is large

Because this process needs to add a large amount of water glass to suppress the gangue minerals, and at the same time, to ensure the recovery rate of the target minerals, a lot of collectors must be added. This is the "strong pressure and strong pull" flotation method usually used on site, which eventually leads to The dosage of medicine is relatively large; 3) the energy consumption is high

This is mainly reflected in the fact that the flotation process is longer and the number of flotation machines is larger. Today, with higher and higher requirements for energy saving, the power consumption is also relatively large, and the power consumption of the equipment is too high under the condition of overload operation. Bigger, Higher Failure Rate

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