Cleaning process for pipes.

摘要

Cleaning of pipelines, especially drains, comprises blocking a drainpipe (3) filled with sewage, emptying the blocked pipeline section, and filling the section with a solid and formless cleaning agent (16). The cleaning agent is pressurized to form a block which lies against the inner wall of the drainpipe and is transported through the drainpipe. Independent claims are also included for a device for cleaning pipelines and for a cleaning agent. Preferred Features: The pressure exerted on the cleaning agent is selected so that the material removal is uniform between the inner wall and the cleaning agent. The cleaning agent is granulated ice mixed with an organic component, e.g. straw, or an inorganic component, e.g. a liquid cleaner.