| 摘要 |
PURPOSE:To smooth exhaust of grains from a hopper by sending gas intermittently by pressure into the hopper, by fluidifying the grains in the hopper and by eliminating thereby attachment of the grains to the hopper walls or bridging of the grains owing to mutual attachment. CONSTITUTION:A chamber 6 is furnished outside the inclined wall 5a of a hopper 5, and equipped with an inlet 8, which is in communication with a means 7 to send gas into this chamber by pressure intermittently. This inclined wall 5a is provided with two or more flow-in holes 9, which allows the gas introduced into the chamber 6 to flow in the hopper 5 dispersed. If ice grains etc. are cast in the hopper 5, a dry gas cooled below 0 deg.C is sent into the hopper 5 by a pressure sending means 7 through the chamber 6 and flow-in hole 9 in diverged state. Thereby the air will flow around in the hopper 5 to prevent attachment of ice grains to the internal wall of the hopper 5 and also mutual attachment of the grains. Thus the intended purpose is attained. |
