A flotation column scraping device

Abstract

A flotation column scraping device includes a flotation cylinder, a foam collection tank, and a clockwork spring. The outer winding end of the clockwork spring is connected with the inner cylinder wall of the flotation cylinder, the inner winding end is connected with the winding shaft, and the winding shaft is connected with the motor. A supporting member for supporting the unsprung disk surface of the mainspring is arranged in the flotation cylinder. When working, the motor drives the winding shaft to rotate, and the clockwork spring expands outwards to drive the foam on the upper layer of the pulp into the foam collection tank; the motor rotates in the opposite direction, and the clockwork spring shrinks inward to complete a bubble scraping action. The invention realizes the bubble scraping in the whole area of ​​the flotation column through the intermittent expansion and contraction of the clockwork spring. Since there is no bubble scraping dead zone, the present invention can completely solve the problem of slow overflow in the central area. The foam scraping efficiency of the present invention is extremely high, and the motor does not need to run continuously, so 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 bubble scraping device for a flotation column. Background technique [0002] Flotation column is a kind of beneficiation equipment, which is widely used in the separation of metal minerals. During mineral processing, high-pressure air is sprayed into the bottom of the flotation column to make the pulp produce a large number of fine air bubbles, which rise slowly from the bottom, and the mineral particles in the pulp adhere to the bubbles, and then float up to the surface of the pulp to form a foam layer . After the foam layer is enriched for the second time, it is necessary to scrape off the foam with mineral particles attached to it and sort out the target minerals. [0003] Due to technical and manufacturing reasons, the flotation columns are cylindrical, and the commonly used roller scraping device is only suitable for square tank-shaped pulp tanks, not circular...

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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