MACHINE FOR DISCHARGING GRANULE

摘要

PROBLEM TO BE SOLVED: To improve the efficiency of spraying and recovery of granule such as a fertilizer in a machine for discharging the granule performing the spraying and recovery of the granule utilizing pressure air. SOLUTION: The machine for discharging the granule is obtained by connecting a blower 67 through a pressurized air changeover pipe 82 having the blowoff side branched into a forked state to a granule transfer pipe 62 and a granule recovering pipe 85. The branched part of the pressure air changeover pipe 82 is provided with a changeover shutter 89 for changing over a state in which the pressure air from the blower 67 is fed to the granule transfer pipe 62 and a state in which the pressure air is fed to the granule recovering pipe 85. The changeover shutter 89 is formed into a shape in which extension surfaces F1a and F2a at the ends of pressure air guide surfaces F1 and F2 on the side opposite to the blower 67 are directed to the inside of the inner wall of the pressure air changeover pipe 82. Thereby, the pressure air is smoothly blown from the blower 67 into the granule transfer pipe 62 and the granule recovering pipe 85. COPYRIGHT: (C)2004,JPO&NCIPI