Basic conditions for choosing an ultra-fine grinder
- Material properties
The nature of the material includes the nature and density of the abrasive material. Under the action of the negative pressure airflow caused by the fan, the material ground by the airflow mill is taken out of the grinding chamber, enters the material collection system, filtered by the filter bag, the air is discharged, the material and dust are collected, and the grinding is completed.
The ultra-micro grinding machine is a device that uses air separation, pressure grinding, and shearing to achieve ultra-micro grinding of dry materials. It is composed of cylindrical grinding chamber, grinding wheel, grinding rail, fan, material collection system and so on. The material of the superfine pulverizer enters the cylindrical grinding chamber through the feeding port, and is crushed and sheared by the grinding wheel that moves in a circular motion along the grinding rail to realize grinding.
- Material status
The material status mainly refers to the humidity and temperature of the material. Unlike wet grinding, in dry grinding, the water content of the material cannot exceed 3%, otherwise the processing capacity of the grinder will drop sharply, especially the dry ball mill is more important.
- Material size
Unlike the crusher, the feed size has a great influence on the output of the crusher, and is one of the main factors affecting the processing capacity of the grinder. Therefore, the energy consumption in the crushing and grinding stages is different, and the energy consumption in the crushing stage is much less. It is very important to apply the principle of more crushing and less grinding in the crushing operation. Therefore, in the crushing stage with less energy consumption, the material should be crushed to a finer particle size as much as possible to reduce the energy consumption in the grinding operation.
- Grinding ability
Even if the product needs to be grinded according to the requirements, the crusher can be selected to obtain the same size of material particles, and then the appropriate grinder can be selected according to the type and size.
- Grinding method
Grinding methods are divided into wet and dry methods. Wet grinders: limited to rotary grinders and tower grinders that use steel balls or other media, and there are also many dry grinders. Which type of grinding machine is used is affected by the operation before and after grinding, the number of grinding sections, and the choice of grinding process.