| 摘要 |
PROBLEM TO BE SOLVED: To unify the dispensing amount of the powder and grain material dispensed to respective feeder systems in a feeder for the powder and grain material which has the plurality of feeder systems and of which the length of gas transfer tubes varies. SOLUTION: In a powder and grain material feeder 1, a container 3 in which the powder and grain material is stored, a dispensing machine 5 for the powder and grain material provided continuously with a lower portion of the container 3, a feeder 7 for powder and grain material for pneumatically transporting it dispensed from the dispensing machine 5 to a destination, and a blower for feeding gas for transportation to the feeder 7 are provided. The dispensing machine 5 has a rotating blade 13 provided at a bottom surface of the container 3 so as to be rotated freely, and a plurality of openings 15 provided apart in the rotational direction within the rotation range of the rotating blade 13. The feeders 7 are provided respectively so as to meet the opening 15 of the dispensing machine 5, and have an inlet tube 27 for gas connected with the blower, an outlet tube 29 for gas connected with the portion to which the material is fed, and a space for connecting the inlet tube 27 for the gas with the outlet tube 29 for the gas, and the powder and grain material which is disdispensed from the opening 15 of the dispensing machine 5 is fed to the space portion. An equalizing pipe 25 which mutually communicates the plurality of inlet tubes 27 for the gas respectively connected with the feeder 7 is provided. COPYRIGHT: (C)2006,JPO&NCIPI
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