Flotation column feeding system

Abstract

The invention discloses a flotation column feeding system, which comprises a feeding pipe, a plurality of pulp outflow pipes, a feeding pipe fixed support and a feeding pipe casing pipe; the feeding pipe is transversely inserted in a column body of a flotation column and is fixed with the column through a flange; a plurality of pulp outflow pipes are arranged on the pipe wall of the feeding pipe; the feeding pipe fixed support is fixedly installed in the column body and is positioned below the feeding pipe; and the feeding pipe casing pipe and a casing pipe flange are welded into a whole and are then welded on the wall of the flotation column. According to the feeding system provided by the invention, without passing through a feeding branch pipe, pulp is distributed to the flotation column through a pulp outlet directly connected with the feeding pipe, so that the probability that the pulp blocks the feeding system can be greatly reduced; and the feeding pipe is connected with the column body of the flotation column through the casing pipe, so that the installing precision can be easily controlled, the feeding pipe can be conveniently maintained and changed, a rubber liner can be simply installed in the feeding pipe, and the feeding pipe can have longer service life.

Description

technical field [0001] The invention relates to the field of mineral processing, in particular to a flotation column feeding system. Background technique [0002] Flotation column is a kind of mineral processing equipment, which is widely used in the separation of non-ferrous metals, ferrous metals and non-metallic minerals. see figure 1 , the existing flotation column usually consists of a spray water assembly 1, an ore feeding system 2, a column assembly 3, an aeration system 4 and a tailings system 5. When the flotation column is working, the air will generate fine air bubbles slowly rising from the bottom of the column after being acted on by the aeration system 4 installed at the bottom of the column; the ore slurry is fed in from the height of 2 / 3 of the column, and after being evenly distributed by the ore feeding system, Slowly flowing downward; the mineral particles in the pulp and the air bubbles collide countercurrently in the column, and the useful minerals att...

AI Technical Summary

Problems solved by technology

combine figure 2 , for small flotation columns, this kind of ore feeding method can well achieve uniform ore feeding, but for large flotation columns, this kind of ore feeding system has certain limitations: first, the diameter of the flotation column becomes larger Then the number of branch pipes along the circumferential direction of the mine system must be increased, which brings inconvenience to the installation work; secondly, the installation accuracy of the mine system is not easy to control and requires high requirements. If the installation accuracy does not meet the requirements, a large number of branch pipes will There will be some branch pipes that do not flow out of the slurry, and some branch pipes with a large slurry flow rate will be unevenly distributed

Thirdly, the diameter of the branch pipe is relatively small, and there are bends in the shape, while the branch pipe of the large-scale flotation column feed system is relatively long, so it is difficult to realize rubber lining, and the service life of the feed system cannot be guaranteed

Finally, the "claw" type ore feeding system pipe is easy to block and difficult to clean

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