Micronizer

An apparatus configured to micronize an inorganic salt, comprising:

• a receiving vessel configured to receive the inorganic salt to be micronized in an interior of the receiving vessel;
• a grinding unit configured to comminute the inorganic salt to be micronized located in the receiving vessel and to form micronized salt particles, wherein the grinding unit comprises a motor, a magnet driven rationally by the motor, and a ball of magnetizable material, wherein the ball is arranged in the receiving vessel, and wherein the motor and the magnet are arranged outside the receiving vessel;
• an ascending pipe having a lower end and an upper end, wherein the ascending pipe is at its lower end connected fluidically to the receiving vessel and serves to transport the micronized salt particles, wherein at the upper end of the ascending pipe, an outlet orifice is arranged through which the micronized salt particles can flow out of the apparatus;
• a fan configured to generate an air stream;
• a housing with an air outlet through which the air stream leaves the apparatus, and with an air duct connecting the fan to the air outlet, wherein a lower end of the air duct is connected to the fan, and wherein the air owlet is arranged at an upper end of the air duct, wherein the air duct is separated by at least one wall from the interior of the receiving vessel, such that the air stream generated by the fan does not flow through the interior of the receiving vessel, and wherein the air outlet at least partly surrounds the upper end of the ascending pipe at the upper end of the air duct;
• a temperature sensor configured to generate a temperature signal;
• a hygrometer configured to generate a humidity signal;
• and
• a control unit with a switch that control the motor, wherein the control unit is configured to operate the motor at the first nominal speed, wherein the first nominal speed is selected to be between 1,500 and 2,500 revolutions per minute, wherein the control unit and the switch are configured to control the first nominal speed as a function of the temperature signal and of the humidity signal.