| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for blowing air to a filter with which the replacement work of filters is made easy, the pollution in the surrounding the secondary side facilities is suppressed, and the product lives of these facilities can be prolonged. SOLUTION: The apparatus for blowing air is assembled in a water channel through which wastewater pumped up by a pump is passed to a filter between the pump and the filter so as to blow an air through a check valve from an air compressor to push out the wastewater clogging the filter and is provided with a safety valve for releasing the excess pneumatic pressure. |
