Roller mill

Abstract

The high-efficiency tumbling mill includes an upper body with inside separated cavity and feeding port, lower body with bearing seat, internal rolling hammers and blower. Technologially, the main points include the rolling hammers set inside the mill, near the feeding port and in the radial groove; and the turntable inside the separated cavity and on the same rotation shaft with the blower. The device is compact and small and high in superfine powder producing efficiency, and has many other advantages.

Description

technical field [0001] The invention relates to a material grinding device, in particular to a roller mill mainly suitable for preparing fine powder and superfine powder material, and it is also suitable for grinding other brittle materials below medium hardness. Background technique [0002] At present, there are many crushing machines for crushing materials, such as jaw crushers, cone crushers, etc., which are mainly used for crushing large materials, which have short service life of wearing parts, low efficiency, high energy consumption, and difficult maintenance. and other defects. Hammer crushers, reversible impact crushers, airflow crushers, vibratory crushers, ring hammer crushers, roller hammer crushers, etc. are mainly used for small and medium-sized materials. There are also ball mills, roller mills, etc., which are suitable for grinding fine or ultrafine materials. The latter is used for crushing or grinding equipment, although the crushing ratio has increased c...

AI Technical Summary

Problems solved by technology

The structure of the jet mill is complex and the cost is high

Conventional roller mills use pins to fix the roller ring (or hammer) on the turntable, and grind under the action of centrifugal force. Due to the constraints of its structure, it is difficult for the particle size of the material to meet the requirements of fine powder or ultrafine powder. material requirements

The ball mill is mainly ground by long-term collision and grinding between materials and balls. It has large volume, high energy consumption, low grinding efficiency, high noise, and inconvenient disassembly and maintenance.

On the other hand, most of the above-mentioned equipments also need to be equipped with winnowing machines, which not only increases equipment cost and maintenance cost, but also increases equipment footprint and maintenance labor intensity.

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