METHOD IN A CLEANING MACHINE AND A CLEANING MACHINE FOR WORKING THE METHOD

摘要

Method in a cleaning machine wherein liquid is circulated alternatively with and without granules entrained therein, which are heavier than the liquid, liquid and granules or liquid only being drawn from a tank (11) by means of a pump (15) to be discharged therefrom under pressure towards the goods to be cleaned and is then allowed to flow back to the tank. Then, liquid only will be drawn from the tank at a level spaced above the surface (21) of a bottom layer (14) of granules in the tank while liquid and granules will be drawn from the bottom layer in the tank through a bottom outlet (17) of the tank. The invention also relates to a cleaning machine for working the method having an open-ended sleeve (29) which is guided to be vertically displaced between a position with the lower end engaging the bottom (12) of the tank (11) around a bottom outlet (17), and another position with the lower end lifted from the bottom.