Multifunctional scraper stirring ball mill

Abstract

The ball mill consists of main unit and peripheral equipment, the main unit consists of frame, elevating table, motor, transmission part, main shaft and ball milling pot, and the peripheral equipmentincludes cooling system, vacuum system, gas supply system, material feeding system, measuring and controlling system and remote controlled microcomputer system. The ball mill has integrated laminated dynamic and static combined sealing, simultaneous vacuum pumping and filling with protective gas of the ball milling pot and the transmission part, no leakage of the material during alloying and no harmful gas invasion. It has end scraper to eliminate powder adhered to the wall of the ball milling pot and spherical transition ends to eliminate powder deposition in the bottom and to raise the ball milling effect. The present invention is suitable for processing nano material.

Description

1. Technical field [0001] The invention relates to a multifunctional spatula-stirred ball mill, which is particularly suitable for the equipment used in the preparation technology of mechanical alloying superfine powder materials. 2. Background technology [0002] In order to realize mechanical alloying (Mechanical Alloying, MA), there are four types of high-energy ball mills commonly used: drum ball mill, planetary ball mill, vibration ball mill and stirring ball mill, among which the energy of vibration ball mill is higher, and the energy of planetary ball mill is lower. The trajectory of the balls in these two ball mills is simple, which is convenient for simulation calculations, but the capacity is small, the former is less than 20g, and the latter is less than a few hundred grams; while the horizontal drum ball mill is limited by the critical speed, it requires a higher energy drum. The diameter is from a few meters to tens of meters, which is only suitable for large-sc...

AI Technical Summary

Problems solved by technology

However, the existing agitating high-energy ball mills generally have the following disadvantages: 1. The bottom is easy to sink powder, and the cylinder wall is easy to stick powder

This makes it impossible for the material to produce a uniform and deepening effect during the alloying process, and the experimental data is difficult to be accurate

And it makes it difficult to take materials; the waste of materials is great

2. The power of the stirring rod is provided by the motor outside the ball mill. The motor shaft needs a dynamic seal when entering the ball mill chamber. The existing dynamic seal has the problem of poor reliability, which makes it difficult for high-vacuum ball mills and protective atmosphere ball mills. Certain active elements Mechanical alloying is difficult to carry out, which limits the research scope of mechanical alloying to develop new materials

3. The existing stirring high-energy ball mill has a simple feeding method

The first two methods are difficult to guarantee the alloying effect, and are prone to danger; the latter is too primitive, and the powder taken out is limited

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