| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary air nozzle for culture, equipped with rotary blade pipes having air bubble-jetting nozzles. SOLUTION: Rotary blade pipes are automatically rotated on a horizontal surface by the rotation couple forces of compressed air horizontally jetted in one direction from the plural nozzles 5a of the rotary blade pipes 5 symmetrically disposed on the rotation shaft. The jetted air bubbles jetted from the nozzles have a function for rotating and spreading the air bubbles in a wide range for cultured products 11 disposed in the upper portion. A hose 6 is connected to the upper portion of a sunk and vertically disposed main pipe 1. The compressed air is supplied from a compressed air-supplying means 9 through the hose in a communicated state. A rotary disk 4 fixed to a rotatable rotary shaft member 2 is disposed under the main pipe. The rotary blade pipes extended from the edge of the rotary disk symmetrically on the rotation shaft are screwed in the rotary disk horizontally each other. The inner portions of the rotary blade pipes communicate with the central long hole of the rotary shaft member.
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