Combined crushing and grinding system

Abstract

The invention discloses a combined crushing and grinding system which is particularly applied to the field of mineral separation techniques. The combined crushing and grinding system is high in production capacity, small in power consumption, high in efficiency, small in occupancy and high in reliability. The combined crushing and grinding system comprises a fine crushing device and an ore grinding device; the fine crushing device is a high-pressure roller mill, and the ore grinding device is a horizontal type roller mill; and the material output end of the high-pressure roller mill is connected with the material input end of the horizontal type roller mill. Compared with a traditional conical crushing machine and a ball milling machine, the high-pressure roller mill and the horizontal type roller mill are larger in processing amount by extruding through material beds. Furthermore, more energy is saved. The high-pressure roller mill and the horizontal type roller mille are organically combined into the combined crushing and grinding system; the high-pressure roller mill can crush more than 80% of materials to 3mm, and the grinding feed size is reduced; and a lot of micro or macro cracks are generated in the crushed materials, and the materials can be easily ground finely after entering the horizontal type roller mill. Thus, the purposes of improving efficiency and reducing energy consumption are achieved.

Description

technical field [0001] The invention relates to a combined crushing and grinding system, in particular to a combined crushing and grinding system used in the field of mineral processing technology. Background technique [0002] In the process of ore processing, useful ores need to be separated from other products (such as other useful ores, gangue, etc.) and enriched by a certain beneficiation method to meet the requirements of smelting. Since various ores are in a complex combination state in nature, they need to be separated by external force. At present, in the field of mineral processing, the method of monomer dissociation of ore is to crush and grind bulk materials into suitable particle sizes for subsequent mineral processing operations through ore crushing and grinding. Crushing and grinding, as preparatory operations before ore sorting, directly affect the level of technical and economic indicators such as the monomer dissociation degree of ore and the concentrate g...

AI Technical Summary

Problems solved by technology

The ball mill is used as a mineral processing preparation operation - the equipment in the grinding section is used in most processing plants. From the technical point of view, its disadvantages are: 1. Low work efficiency

2. During the grinding process, grinding media such as steel balls or steel rods are required for grinding, which consumes a lot of materials. Generally, 0.8-2.0Kg steel balls are required to grind one ton of ore. At the same time, the addition of grinding media will be unfavorable for subsequent mineral processing operations. Impact

3. The noise is high during the operation of the equipment, which affects the working environment

4. The equipment occupies a large area

Therefore, there is no combined crushing and grinding system with high production capacity, low power consumption, high efficiency, small footprint and high reliability in the prior art.

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