Multifunctinal scraper stirring ball mill

Abstract

The invention relates to a multifunctional scraper stirring type ball mill, which is composed of a main machine and additional peripheral equipment. System, air supply system, reclaiming system, measurement and control system, microcomputer remote control system. Integrated layered dynamic and static combined sealing, the ball mill tank and the motor transmission part are evacuated or filled with protective gas at the same time, and the material has no leakage and no harmful gas intrusion during the alloying process. The life of the sealing material is extended by more than ten times. Vacuum or atmosphere protection ball mill to solve the oxidation and pollution of ball mill powder. After vacuuming, it is filled with a small flow of protective gas, and the ball mill powder can be automatically sent to the glove box for protection from the sealed ball mill tank, and the powder output rate can reach more than 95%. The scraper of the end scraper solves the problem of sticking powder on the tank wall; the spherical transition end solves the problem of sinking powder at the bottom and greatly improves the ball milling effect. It is suitable for processing nanomaterials in pharmaceutical and military industries.

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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