Cleaning and releasing device

摘要

A cleaning and releasing device (1) has a hand valve (19) provided on a flow passage (17) of a pressurized liquid in the vicinity of an injection nozzle (2), a switching valve (5) provided in a proper position on the flow passage (10) of a pressurized gas, flow detecting means (20) provided in a proper position on the flow passage (17) of the pressurized liquid, and a controller (13) for controlling the switching operation of the switching valve (5) based on a result of detection transmitted from the flow detecting means (20), and controls the switching valve (5) to supply and stop the pressurized gas depending on the presence of a flow of the liquid generated by the switching operation of the hand valve (19). The supply and stop of a powder and granular material may be controlled based on the result of detection transmitted from the flow detecting means (20). <IMAGE>