| 摘要 |
PROBLEM TO BE SOLVED: To realize equipment for the sewage treatment such as pumping up and treating the sewage produced from piggeries, that can be smoothly and surely performed efficiently and effectively as a system. SOLUTION: A pump for pumping up the sewage is previously provided with a clogging detection switch in mid-way of a pumping-up pipe 4 where the operation of the pump is stopped by a signal from the clogging detection switch and the sewage within the pumping-up pipe 4 is allowed to flow backward by a fall when pumping-up is clogged. Consequently, the pumping-up stops only when the intake port is clogged and simultaneously the clogging materials are expelled by the back flow of the sewage in the pumping-up pipe 4, by which the subsequent operation is smoothly carried out. COPYRIGHT: (C)2003,JPO
|
