Spiral flow continuous centrifugal classifier

Abstract

The invention relates to a classifier for the centrifugal classification of minerals and the classifier can effectively separate minerals with different heavy mineral contents and be especially suitable for the deep concentration of fine minerals with high heavy mineral contents. In the classifier, a water inlet pipe is connected on the wall of a sealed barrel-shaped settling chamber, the upper part of the settling chamber is provided with a barrel-shaped spiral flow column, the lower part is connected with a concentration cone; the lower end of the concentration cone is connected with a concentrate pipe; the upper part of the spiral flow column is connected with a mineral-feeding pipe tangentially, the lower part is connected with a coaxial sorting cone with a sealed bottom, tangential fluidization holes are uniformly distributed at the bottom of a conical ring slot on the inner wall of the sorting cone, and the top of the spiral flow column is provided with a tailing pipe which is communicated with the lower part of the sorting cone. The classifier of the invention utilizes the rotation of pulp to establish a centrifugal field; the formed cast film has large thickness and strong mineral storage and buffer capacities; and minerals with high heavy mineral content and concentrate yield or minerals with low heavy mineral content and concentrate yield can be effectively sorted, thus the classifier has strong adaptability.

Description

technical field [0001] The invention provides a separator for continuous centrifugal separation of minerals, which can effectively separate materials with different heavy mineral contents, and is especially suitable for deep concentration of fine-grained minerals with high heavy mineral contents. Background technique [0002] At present, the centrifugal separators used in the mineral processing industry are mainly fluidized bed centrifugal separators and single-wall centrifugal separators. Although fluidized bed centrifugal separators such as Knelson and Falcon have high separation efficiency and can effectively separate minerals with low heavy mineral content and low concentrate yield, they cannot separate minerals with high heavy mineral content and high concentrate yield such as iron Mine, etc.; single-wall centrifugal separators can be used to separate minerals with heavy mineral content and high concentrate yield, but due to the thin thickness of the separation flow fil...

AI Technical Summary

Problems solved by technology

Although fluidized bed centrifugal separators such as Knelson and Falcon have high separation efficiency and can effectively separate minerals with low heavy mineral content and low concentrate yield, they cannot separate minerals with high heavy mineral content and high concentrate yield such as iron Mine, etc.; single-wall centrifugal separators can be used to separate minerals with heavy mineral content and high concentrate yield, but due to the thin thickness of the separation flow film and the small separation space, the processing capacity of the centrifuge is generally small , it is difficult to meet the requirements of mineral processing industry production

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