To provide a feeding device for a powdery and granular agent applicator, capable of eliminating difficulty in feeding of the agnet caused by a space part at an outlet part formed by a bridge phenomenon resulting from a backflow to a housing tank of pressure wind for sending the gent to a spraying column and pressing back of the agent delivered from the housing tank in spraying the agent from an opening at the bottom of the spraying column on the ground side by sending the powdery and granular agent from the housing tank to the spraying column by the pressure wind under pressure.
A powdery and granular agent is dropped from a housing tank 1 through a feeding tool 2 to a lower chamber 3. In order to transport the agent to a central guide column 4, wind produced by a blower 5 is partially sent through a front wind route pipe 6 to the lower chamber 3. In a wind pressure applicator for connecting the lower chamber 3 to the central guide column 4 by a transporting wind route pipe 7, the lower end part of an air route pipe 8 is extended to the vicinity of the upper part of the feeding tool 2 to give the objective feeding device for a powdery and granular agent applicator.
ODAGIRI HAJIME
WAKINO TAKASHI
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