METHOD OF DRYING SEWAGE SLUDGE AND DRUM DRYER FOR ITS IMPLEMENTATION Russian patent published in 2024 - IPC C02F11/02 F26B11/04 

FIELD: ecology.

SUBSTANCE: group of inventions relates to the technology of removing soil contaminants, in particular to the drying of muddy sediments. Rotating perforated drum (1) is installed in the thermal protective housing (2) on support rollers (3) and is equipped with a drive rim kinematically connected to the shaft of the drive motor reduction gear. At that, at both ends the drum is closed with covers, at that at one end in the cover there is a movable pipe for removal of moisture-containing gases, and on the other—a screw conveyor with a grinder of paste-like muddy sediment into lumps, installed in its end part, and loading funnel (13) for loading paste-like muddy sediment into rotating perforated drum with blades (17) fixed on inner wall along drum parallel to axis of its rotation, and pigs (18) freely moving in it. Under the drum there is intermediate chamber (19) with wedge-shaped grate (20), at the bottom of which drying gas supply pipeline (6) is installed with jet nozzles (7) vertically installed with an offset relative to the housing symmetry axis towards the drum rotation, communicating with source of pulsating drying gas, and accumulation hopper (21) of dried granulated muddy sediments, which is equipped with screw conveyor with discharge funnel.

EFFECT: higher efficiency of drying sewage muddy sediments.

4 cl, 2 dwg