Patent ID: 7159807
Filing Date: 2007-01-09
Classification: B02C

Abstract:
1. An apparatus for grinding granular material, comprising: a hammer mill, comprising a housing having a chamber formed therein, the housing having openings for a carrier gas inlet, a particulate matter inlet, and a mixture outlet, the outlet receiving a mixture of the particulate matter and carrier gas; at least one hammer rotatably mounted in the housing adjacent the mixture outlet, the particulate matter being reduced in size through impact with the hammer; a screen mounted within the carrier gas inlet with holes for regulating the velocity of carrier gas and keeping the particulate matter in contact with the hammer; a feed auger rotatably mounted to the hammer mill housing and in fluid communication with the particulate matter inlet so as to convey the particulate matter toward the hammer; a blower in fluid communication with the carrier gas inlet forcing carrier gas through the screen.