Interior sewer pipeline scarifying apparatus

摘要

This application discloses an apparatus for scarifying the interior surface of a sewer pipe, which can remain in the sewer under active flow conditions. The apparatus includes at least one scarifying head, which may transverse back and forth along a rail assembly, which is configured to match the circumferential shape of the sewer pipe. The scarifying head includes a nozzle assembly and driving assembly. The nozzle assembly, located at the outer end of the scarifying head has nozzles. The nozzles emit jets of water under pressure to clean or scarify the interior surface of the pipe.