Patent ID: 8827190
Filing Date: 2014-09-09
Classification: E21F

Abstract:
1. A rock dusting apparatus comprising: a cylindrical tank body having an air inlet and an outlet portion, the air inlet disposed toward a bottom portion of the cylindrical tank and the outlet portion disposed in a top portion of the cylindrical tank; a top member removably attached to a top of the cylindrical tank body and configured to releasably seal the top of the cylindrical tank body; a bottom member attached to a bottom of the cylindrical tank body and configured to seal the bottom of the cylindrical tank body; an air supply unit connected to air inlet to supply air to the bottom portion of the cylindrical tank body; and a circular member disposed within the cylindrical tank body between the top member and the bottom member to divide the cylindrical tank body into the top portion and the bottom portion, the circular member is configured to inject air from the bottom portion into the top portion in a substantially circumferential direction with respect to an axis of the cylindrical tank body.