BIOFERMENTER FOR ACCELERATED BIOCONVERSION OF ORGANIC WASTE Russian patent published in 2023 - IPC C05F17/929 C05F3/06 

FIELD: agriculture.

SUBSTANCE: biofermenter for accelerated bioconversion of organic waste contains cylindrical drum 1 with a heat-insulating coating equipped with a compostable mass aeration system, made in the form of a perforated pipeline and having loading and unloading windows located on its opposite end sides, as well as blades for supplying the finished compost to the unloading window, evenly spaced around the circumference, frame 6, the rotation drive of cylindrical drum 1 and track rollers 8, mounted on frame 6, made U-shaped with increased rigidity at its corners with gussets, and four racks of uneven height are rigidly fixed on the end sides, the extreme ones being equal and reaching 2:3 of the height of the two central posts of equal height with holes made along the central axis, rigidly connected to each other by a crossbar, while adjacent posts of different heights are rigidly connected to each other by an inclined crossbar. At the end of cylindrical drum 1, the first ring is rigidly fixed, to which the second ring is rigidly fixed with the inner diameter greater than the inner diameter of the first ring. Inside the second ring, a disk is fixed with removable threaded connections to the central posts. The third ring is installed behind the disk fixed with removable threaded connections to the first ring, through the second ring. Holes are made in the disk of the loading end: there is a hole in its central part with a perforated pipeline installed in it, and in the upper part there is a loading window, and holes are made in the disk of the unloading end: an unloading window in the center with an unloading device placed in it and a hole with a pipe installed in it in the upper part. The blades for supplying the finished compost to the discharge window are rigidly fixed to the inner surface of cylindrical drum 1 and are located along the radii of cylindrical drum 1. The length of the blades is equal to the length of the part of the unloading device located inside cylindrical drum 1 and installed in the unloading window. A loading conveyor is installed in the loading window. Guides are rigidly fixed on the outer surface of cylindrical drum 1, and a gear is rigidly fixed on the rotation drive shaft of cylindrical drum 1, which interacts through a chain drive with a gear rigidly fixed along the diameter of the outer surface of cylindrical drum 1. On the inner surface of cylindrical drum 1, a strip is fixed in a spiral with the parameters of

,

where E is the ratio of the helix pitch to the diameter of the drum, Q is the maximum daily productivity of the biofermenter (t/day), D_int is the inner diameter of the cylindrical drum (m), n is the number of full revolutions of the cylindrical drum (rev/day), ρ is the bulk density of the fermented material (t/m³), ϕ is the filling factor of the cylindrical drum, and the height of h=(0,01...0,25)⋅D_int, where h is the height of the strip (m). The guides are made in the form of shell 28 with a width not less than the working surface of track roller 8, made in the form of a wheel with a one-sided flange. The side surface of track roller wheel 8 interacts with the working surface of shell 28, and the flange of track roller 8 interacts with the side surface of shell 28. A gear wheel is rigidly fixed along the outer surface of cylindrical drum 1, and a ratchet mechanism interacting with it is rigidly fixed to the frame. On each of the central posts, 2 holes are made coaxial both in the vertical and horizontal planes with the possibility of installing fasteners in them.

EFFECT: improved reliability of operation of the device with increased range of processed waste and quality of the finished substrate.

1 cl, 5 dwg