| 摘要 |
A pig for removing sludge of garbage and various municipal solid wastes adhered onto an inner portion of a transfer pipe by suction in a vacuum waste collection system, and a vacuum waste collection system comprising the pig are provided. A vacuum waste collection system comprising a pig for removing a waste sludge in a transfer pipe comprises: a transfer pipe for collecting waste in a vacuum waste collecting negative pressure system; and a cylindrical pig(2) which has prominences(2-2) and depressions(2-3) alternately formed on an outer peripheral surface thereof, an inclined plane(2-4) formed on an head part thereof, and a hole(2-1) perforated in the center thereof, wherein an inner diameter of the transfer pipe is larger than an outer diameter of the pig, and a predetermined gap is formed between an inner surface of the transfer pipe and an outer surface of the pig. |
