Impeller, superfine mill and superfine milling system

Abstract

The invention provides an impeller, a superfine mill applying the impeller and a superfine milling system comprising the superfine mill. The impeller comprises a wheel disc, straight surface type blades and straight surface type impact plates, and an abrasion-resistant layer is adhered to the surface of each straight surface type blade. The straight surface type blades are multiple and uniformly arranged on the wheel disc in the radial direction. The tail end of each straight surface type blade is provided with one corresponding straight surface type impact plate in the extension direction of the center of the wheel disc to the outer diameter edge of the wheel disc, and a first included angle is formed between each straight surface type blade and the corresponding straight surface type impact plate. The tail ends of the straight surface type blades are located within the outer diameter edge of the wheel disc. The initiating end of each straight surface type impact plate is connected with the tail end of the corresponding straight surface type blade. The tail ends of the straight surface type impact plates exceed the outer diameter edge of the wheel disc. According to the impeller, the superfine mill applying the impeller and the superfine milling system comprising the superfine mill, high-hardness nonmetal or metal can be milled into superfine powder; in addition, abrasion of equipment parts is small, and the function of particle size classification is achieved.

Description

technical field [0001] The invention relates to the field of ultrafine powder processing, in particular to an impeller, an ultrafine grinding machine and an ultrafine grinding system using the impeller. Background technique [0002] In the field of ultrafine powder processing, the equipment that uses physical methods to process ultrafine powder mainly includes jet mills, vibration mills, ball mills, stirring mills, colloid mills, and mechanical impact mills. [0003] Among them, the jet mill uses high-pressure gas to generate jet airflow through the nozzle, and the kinetic energy generated makes the particles collide, impact, rub and shear each other to achieve ultra-fine pulverization. However, this way of transferring kinetic energy to solid particles through gas makes the kinetic energy of solid particles limited, so the output of a single machine is low and the energy consumption is high. [0004] The vibrating mill is an ultra-fine pulverizing equipment with ball or ro...

AI Technical Summary

Problems solved by technology

[0011] Whether it is a fan mill or a mechanical impact pulverizer such as a high-speed eddy current pulverizer, when pulverizing materials with high hardness, such as quartz stone, ore, and metal, the impact components such as rods, blades, hammer heads, and impact tooth plates are severely worn and cannot be guaranteed. work continuously for a long time

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