Powder pulverizing method and equipment

The present invention relates to a powder pulverizing method and equipment, which utilizes ramming elements with flats rotating at a high speed to make multiple structures of collision for causing powder to collide with each other at a high speed and he pulverized at last. The gas inside a chamber of the pulverizing equipment can be maintained under a stable, low pressure and the high-speed rotation of flat ramming elements can produce relative ultra air current as simultaneously as allow ultra-fine powder to be sorted. Thus, this invention has a best structure with smarting and sorting functions for ultra-fine powder. In other words, the brittle and hard powder with D50 < 20 m can be pulverized fast to D50 < 2.0 m or below. For the above, it is obvious to know the characteristics thereof focus the function of saving electricity, low material consuming, high efficiency, low temperature and dry-type operation. Still further, the oxide incapable of being proceeded with high-temperature pyrolysis, powder or ultr