MECHANIC WASTE WATER TREATMENT DEVICE Russian patent published in 2017 - IPC E03F5/14 

FIELD: chemistry.

SUBSTANCE: device contains a filter cloth made of parallel plates installed with a gap (1), a grating rake (2), a drive. A trawl raking device (2) is mounted on the pairs of gear drive (3) and tension wheels (4) and comprises rake tracks, movably connected within an endless caterpillar chain, with teeth set at an angle α to the track base. Tracks teeth of the are made with a possibility of entering into the filter cloth openings. The device contains rake tracks (6) with the angle of teeth inclination α₁ and rake tracks (7) with the angle of teeth inclination α₂, where α₁ ≠ α₂. Tracks (6 and 7) with different angle of teeth inclination are alternately connected within the caterpillar chain by means of connecting elements (8). The connecting elements (8) and the rake tracks (6 and 7) comprise radial projections (9), and the gears (3 and 4) comprise reciprocal radial recesses (10).

EFFECT: increased degree of cleaning, reduced operating costs and labor-intensive maintenance, increased reliability and extended life of the device.

8 cl, 4 dwg