| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to efficiently aerate and agitate dung without the occurrence of clogging by provide a dung storage tank with a cylindrical body which has communicating openings at the top and bottom and is sunk in this tank, supporting this cylindrical body at supplying legs apart a spacing on the base of the storage tank and opening many air injections nozzle on the inner peripheral surface of the lower part of the cylindrical body. SOLUTION: At the time of use, the cylindrical body 10 is sunk into the dung in the dung storage tank and the legs 25 are grounded to the base. When air is ejected out of the respective air injection nozzles 24 by supplying the compressed air by an air feeder 23 in this state, the ejected air comes into contact with the dung in the cylindrical body 10 and supplies oxygen to the dung. While the dung is agitated, the air is risen by the buoyancy thereof. Namely, the dung in the cylindrical body 10 is lifted by an air lift effect and is delivered from a discharge port 15 at the top end. On the other hand, the dung is sucked from a suction port 16 at the bottom end and is circulated and agitated. The scum of the hard surface of the dung is approximately annihilated and slurried and the state of allowing the suction up by a pump is attained.</p> |
