| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder and grain supply device stably operable without stopping for a long period by preventing powder and grain from entering into a bearing part arranged in a shaft end part of a rotary shaft for rotating by interlocking with a moving means or easily finding the powder and grain when the powder and grain starts to enter into the bearing part when moving the powder and grain, for example, cement, fly ash, feed or grain. SOLUTION: This powder and grain supply device having the rotary shaft for rotating by interlocking with a means for moving the powder and grain, is provided with the bearing part 28 for rotatably supporting the shaft end part of the rotary shaft and a seal device 30 adjacently arranged to this bearing part 28, and the seal device 30 is composed of a grease impregnated felt-like member arranged so as to surround the shaft end part and an oil seal arranged on at least one side of this felt-like member. |
