Patent ID: 6766970
Filing Date: 2004-07-27
Classification: B02C,Y10S

Abstract:
An apparatus for pulverizing a feed material, comprising:(a) an inclined gravity feed inlet section configured to control the rate of flow and cooling of the feed material into the apparatus; (b) a plurality of gas nozzles in communication with a source of liquefied inert gas, said gas nozzles connected to the inlet section and directed radially inward thereto such that the material traveling through the inlet section is exposed to the inert gas as it evaporates, causing the feed material to be cooled and facilitating mechanical pulverization of the feed material; (c) a crusher directly connected to the inlet section, downstream of the gas nozzles, the crusher having a rotating part and a lining part configured such that the rotating part impacts the material during operation of the device and accelerates the material towards the lining part, the operation thereof pulverizing the material into a smaller size; and (d) an outlet section connected to the crusher configured to control the rate of flow of the material exiting the device.