Installation for the treatment of sludges

摘要

In a sludge treatment installation, a movable carriage is arranged transversely above a work surface of a floor. The movement of the carriage by longitudinal translation over the floor is initiated by a first drive shaft carrying a toothed wheel meshing with a drive chain. A second chain helps to guide the carriage. On the carriage is provided a rotary turning tool which engages in the sludge. Driven in rotation by a second drive shaft independent of the first, it includes pairs of semi-cylindrical paddles fixed substantially symmetrically by one of their edges on either side of a shaft driven by the second drive shaft. The two paddles in each pair of paddles are asymmetrical as a result of having different radii, with a difference at least equal to about 5%. Forced ventilation acts directly on the paddles.

主权项

1. Sludge treatment installation, comprising:
an elongated floor having a work surface for accommodating a mass of sludge spread out thereon, substantially parallel guide rails (102) arranged longitudinally on the floor, on either side of the work surface, a chain drive system (110) arranged along the guide rails, a movable carriage (100) arranged transversely above the work surface and comprising at least one toothed wheel meshing with the chain drive system and coupled to a first drive shaft for moving the movable carriage in longitudinal translation above the floor along the rails, the carriage carrying a rotary turning tool (200) positioned transversely, in contact with said mass of sludge, the turning tool (200) being driven in rotation by a second drive shaft independent of the first, wherein the turning tool (200) comprises pairs of semi-cylindrical paddles fixed substantially symmetrically by one of their edges, on either side of a shaft (210) driven by said second drive shaft (206), the two paddles (204A; 204B) of each pair (202) being asymmetrical, because of their different radii, with a difference of approximately at least 5%, fans (300) of vertical axis mounted on the front of the movable carriage (100), and a conveying duct (302) which starts from the outlet of the fans, and forms a deflector directly towards said paddles of the turning tool (200).