Continuous type vertical planetary ball mill

A continuous type vertical planetary ball mill, comprising:

• a bed;
• revolving means;
• a vertically supported revolving rotary body mounted to said bed to revolve on said bed and rotate relative to said bed, said revolving means being operatively disposed relative to said bed to rotate said vertically supported revolving rotary body, wherein said vertically supported revolving rotary body includes:
• a plurality of mill pots vertically disposed evenly on said vertically supported revolving rotary body for rotation relative thereto;
• a charging case defining a charging port and a discharging case, and wherein each said mill pot is mounted so as not to be cantilevered and includes an entrance at an upper side thereof in communication with said charging port, and an exit at a bottom side thereof in communication with said discharging case, thereby allowing only fine particles to pass through each mill pot;
• a fixed shaft extending upwardly from said bed;
• a mill casing;
• a planetary gear mounted to each mill pot;
• a sun gear mounted to an upper end of said fixed gear and engageable with each planetary gear;
• a rotary shaft;
• bearing means mounting said rotary shaft to said fixed shaft;
• and
• further bearing means mounting each mill pot to said rotary shaft, wherein said rotary shaft defines an airtight chamber between it and said fixed shaft, wherein said fixed shaft includes a passage extending into said airtight chamber for communicating compressed air to said bearing means, and wherein said rotary shaft defines at least one through hole for communicating compressed air to said further bearing means.