TRACK GRATE FRAME OF THE DEVICE FOR MECHANICAL CLEANING OF SEWAGE WATERS AND TRACK OF GRATE FRAME Russian patent published in 2018 - IPC E03F5/14 

FIELD: machine building.

SUBSTANCE: group of inventions refers to the field of wastewater treatment. Grate contains movable trawl (1) movably connected to an endless caterpillar chain with the angle of inclination of the teeth α₁ and rake trucks (2) with the angle of inclination of the teeth α₂, where α₁≠α₂. Tracks (1 and 2) with different angle of inclination of the teeth are next connected to the caterpillar chain by means of connecting elements (3). Grate frame has planar base (11) along which one of longitudinal edges (12) of which, at an angle to the base, and at end edges (5) of the base are made through holes for bolt fastening. Base is a rectangular plate, one of the longitudinal edges (12) of which is bent upwards and has cut-outs in the form of teeth (10), and both end edges (5) are bent downward.

EFFECT: provides an increase in the degree of cleaning, reducing operating costs and labour-intensive maintenance.

15 cl, 6 dwg