Method for screening finished product iron from iron ore

Abstract

The present invention discloses a method for screening finished product iron from iron ore. The method comprises an impurity removing and drying process, a material feeding process, a transmitting cylinder transmitting process and a finished product iron magnetic separation process, wherein the processes are sequentially set in a matching manner, the iron ore with the particle size of more than 40 mm is removed and the remaining iron ore is artificially spread before the iron ore enters the finished product iron magnetic separation process, and the finished product iron magnetic separation process specifically comprises a primary magnetic separation process, a secondary magnetic separation process and a final magnetic fine selection process. With the method of the present invention, defects of large resource consumption, low work efficiency, poor product quality and the like in the prior can be overcome so as to achieve advantages of low resource consumption, high work efficiency and good product quality.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a method for screening finished iron from iron ore. Background technique [0002] According to the physical and chemical properties of different minerals in the ore, after the ore is crushed and ground, gravity separation, flotation, magnetic separation, electric separation, etc. are used to separate the useful minerals from the gangue minerals, and make all kinds of symbiosis (Associated) useful minerals are separated from each other as much as possible, and harmful impurities are removed or reduced to obtain raw materials for smelting or other industries. Mineral dressing can enrich useful components in minerals, reduce fuel and transportation consumption in smelting or other processing, and enable low-grade ores to be economically utilized. The data obtained from the beneficiation test is the main basis for the evaluation of ore deposits and the design of plant constructi...

AI Technical Summary

Problems solved by technology

[0004] At present, the technology of iron ore dry separation machine is immature, the process of beneficiation with iron ore dry separation machine is complicated, and the taste of iron concentrate powder is low

[0005] In the process of realizing the present invention, the inventor found that there are at least some defects in the prior art, such as large resource consumption, low work efficiency and poor product quality.