Flotation column bubble scraping device

Abstract

The invention relates to a flotation column foam scraping device, which comprises a flotation cylinder and a foam collecting tank and further comprises a clockwork spring. The outer rolling end of theclockwork spring is connected with the inner cylinder wall of the flotation cylinder, the inner rolling end of the clockwork spring is connected with a rolling shaft, and the rolling shaft is connected with a motor, and a supporting piece for supporting the lower disc surface of the clockwork spring is arranged in the flotation cylinder. During work, the motor drives the rolling shaft to rotate,the clockwork spring expands outwards, and foam on the upper layer of ore pulp is driven into the foam collecting tank; when the motor rotates reversely, the clockwork spring contracts inwards, and one-time bubble scraping action is completed. The full-area bubble scraping of the flotation column is achieved through intermittent expansion and contraction of the clockwork spring. As no bubble scraping dead zone exists, the problem of slow overflow of the central area can be completely solved. The foam scraping efficiency is extremely high, the motor does not need to continuously operate, and therefore a large amount of electric energy can be saved.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a flotation column scraping device. Background technique [0002] Flotation column is a kind of beneficiation equipment, which is widely used in the separation of metal minerals. During beneficiation, high-pressure air is injected at the bottom of the flotation column, so that the pulp produces a large number of fine bubbles, the bubbles slowly rise from the bottom, and the mineral particles in the pulp adhere to the bubbles, and then float to the surface of the pulp to form a foam layer. . After the foam layer is enriched for the second time, the foam adhering to the mineral particles needs to be scraped out to sort out the target minerals. [0003] Due to technical and manufacturing reasons, the flotation columns are all cylindrical, and the commonly used roller foam scraping device is only suitable for square-trough-shaped slurry pools, not for circular slurry poo...

AI Technical Summary

Problems solved by technology

However, the derivative of the logarithmic curve is an inverse proportional function. In theory, there is still a dead zone, which cannot completely solve the problem of slow foam overflow in the central area.

[0004] After searching, no matter what kind of foam scraping device is available, the foam scraping plate needs to be continuously rotated, and the secondary enrichment and growth of foam takes a certain amount of time, which causes huge energy consumption

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