Magnetic ore dressing method of high-quality feldspar ore

Abstract

The invention discloses a magnetic ore dressing method of high-quality feldspar ore. The ore dressing method comprises the following steps of: crushing and grinding raw ore; performing weak magnetic separation; performing magnetic separation twice by using a high-gradient strong magnetic separator; screening; dehydrating; and filtering. The method breaks through the conventional method, a common strong magnetic separator and an acid leaching process are replaced by separating twice with a SLon high-gradient strong magnetic separator, the fineness of the ground ore is doubled and improved from 0.1mm to 0.2mm, the ore grinding cost is greatly reduced, and the pelitization degree is reduced, thereby playing a key role in simple dehydration of subsequent products so as to solve a series problems of serious product pelitization, serious environment and equipment pollution, small production scale, high cost, serious resource waste, instable product quality and the like in the conventional process. The method also has the advantages of simple production flow, environment friendliness, low production cost, is easy to operate and construct on the spot and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a beneficiation method of feldspar ore, in particular to a magnetic beneficiation method of high-quality feldspar ore. Background technique [0002] With the rapid development of my country's national economy, especially the rapid rise of the building materials industry, the demand for feldspar mines is increasing, especially for Fe-containing 2 o 3 The demand for high-quality feldspar mines with ≤0.1% is insatiable. Feldspar is mainly used in the melting batching of glass industry, the raw material of ceramic production, chemical fertilizer, abrasive and filler and other industries. At present, my country's feldspar mine production enterprises are small in scale, outdated equipment, backward in technology, serious in environmental pollution, unstable in product quality, and far from meeting market demand. Therefore, there is an urgent need for a new beneficiation method to mass-produce high-quality feldspar. quarry, in order...

AI Technical Summary

Problems solved by technology

The traditional processing and production method of feldspar ore is: after the raw ore is crushed and ground, it first enters a weak magnetic separator to remove mechanical iron, and then removes iron oxide by a strong magnetic separator; if the raw ore is to be produced 2 o 3 ≤0.1% of higher grade feldspar ore, the process of the traditional mineral processing method: crushing and grinding -- weak magnetic separation -- strong magnetic machine magnetic separation -- re-acid leaching -- deacidification -- concentration -- filtration, Among them, concentrated filtration adopts small workshop-style multi-stage pools in series, natural sedimentation, or directly presses filter presses into filter cakes. These two methods have small production capacity and high cost. The natural sedimentation method has serious loss of concentrate. When pressing into a filter cake, a slightly larger ore will easily damage the filter cloth, and the cost of frequent replacement of the filter cloth is high

[0004] Due to the serious environmental pollution of the acid leaching process, the corrosion of the equipment is also very serious, and the fineness of the feed material is required to be ≤0.1mm. The fine-grained materials not only increase the cost of grinding, but also increase the difficulty of product concentration and dehydration, which makes the production cost. The multiplier increases, the waste of resources is large, the scale is small, and the output is low. It cannot form a supply channel with stable quality and cannot meet market demand.