Chromium ore recovering system

Abstract

The invention discloses a chromium ore recovering system which is characterized by comprising a general machine frame; a high intensity magnetic separator is mounted at the top of the general machine frame; a vibrating feeder and a gravity separator are mounted under the high intensity magnetic separator; an iron remover is mounted on the side surface of the gravity separator; a material bin is mounted at the upper part of a machine frame I of the high intensity magnetic separator; a vibrating conveyor is mounted under the material bin; a conveyor belt tensioned by a magnetic roller and a redirection roller is mounted under the vibrating conveyor; an air cleaner, a blower and a blast tank are mounted on the vibrating feeder and the under frame of a machine frame II of the gravity separator; a vibrating case is mounted on the machine frame II; a gravity separating sieve is mounted in the vibrating case; a vibrating sieve is mounted at the front end of the gravity separating sieve; a wind distributing board is mounted under the gravity separating sieve; a reducer is mounted on a machine frame III of the iron remover; an output worm gear of the reducer is inserted in a shaft end of a rotary drum; and a magnetic pole seat is mounted in the inner cavity of the rotary drum. The chromium ore recovering system can sort out valuable weakly-magnetic chromium ore particles in mixed particles from other non-magnetic particles, is high in recovery rate, is good in purity, and has significant economic effects.

Description

[0001] technical field [0002] The invention relates to a material sorting device, in particular to a chrome ore recovery system. Background technique [0003] The density of chrome ore is 4~4.8t / m3, the refractoriness is >1900℃, it has solid phase sintering characteristics at high temperature, has good anti-alkaline slag effect, does not chemically react with iron oxide, etc., and has good It is resistant to mechanical sand sticking and chemical sand sticking, so it is widely used as face sand and core sand for large and medium-sized castings. With the continuous improvement of blank precision requirements and the increase of casting size, the demand for chrome ore is increasing. [0004] Since the chrome ore sand and silica sand are mixed together after the casting falls out, there was no recycling equipment in the past, which caused resource waste and economic loss. At present, the chromium ore used in my country's foundry industry mainly relies on imports, and the p...

AI Technical Summary

Problems solved by technology

[0006] Practice has proved that after the mixed sand of chromium ore and silica sand is subjected to strong magnetic separation, the obtained chromium ore still contains a large proportion of silica sand, and the tensile strength of the magnetized impurities and other ferromagnetic impurities is only that of pure chromium ore. About 24% of the tensile strength, can not continue to use

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