In recent years, with the development of technology, it has brought a ray of life to the beginning of new industries. Jet mills are used in many chemical industries and polymer materials, such as ultra-fine grinding of carbon black. This superfine grinder has many advantages. It relies on the collision of the airflow through the material itself to achieve the required fineness. This ensures the purity of the material. The better the brittleness of the material and the finer the crushing process, the greater the output. So in the process of use, what are the factors that affect its crushing fineness? Let's take a look at the editor of the price of the jet mill below!

1. Gas-solid ratio

The gas-solid ratio of the jet mill during smashing is an important technical parameter and also an important index. If the gas-solid ratio is too small, the kinetic energy of the air flow will be insufficient, which will affect the fineness of the product. However, if the gas-solid ratio is too high, not only energy will be wasted, but also the dispersion properties of some pigments will be reduced.

2. Feed size

When crushing hard materials, there are also strict requirements on the particle size of the feed. As far as titanium powder is concerned, the size of 100-200 mesh must be controlled when crushing the calcined material. The crushed material after surface treatment is generally 40-70 mesh, not more than 2-5 mesh.

3. The temperature of the working fluid

When the temperature of the working fluid is too high, the flow rate of the gas will increase. Taking air as an example, the critical velocity at room temperature is 320m/s. When the temperature rises to 480°C, the critical velocity can be increased to 500m/s, that is, the kinetic energy increases by 150%. Therefore, increasing the temperature of the working fluid is conducive to improving the crushing effect.

To sum up, the editor of the price of jet mill tells: about the knowledge of the factors affecting the fineness of the jet mill.