BIOGAS UNIT Russian patent published in 2015 - IPC C12M1/04 C12M1/107 C02F11/04 C05F3/00 B09B3/00 

FIELD: oil and gas industry.

SUBSTANCE: biogas unit is suggested. The unit includes a sealed vertical cylindrical reservoir with tubes to feed the processed biomass, to drain the processed substrate and to outlet biogas. In the reservoir there is air-lift mixer shaped as vertical helical perforated pipe. The helical pipe is placed along walls and bottom of the reservoir, pipe turns repeat shape of the reservoir and its bottom; moreover openings in the pipe have nozzles shaped as pipe angle piece. In the reservoir centre there is vertical perforated pipe with diameter more than diameter of the helical pipe, openings in the vertical and helical pipes are made in staggered arrangement. Lower ends of vertical and helical pipes are fixed rigidly to steel angle piece.

EFFECT: improved capacity of the unit and increased biogas output.

3 cl, 4 dwg