LINE OF MANURE RECYCLING TO PRODUCE BIOGAS AND FERTILISERS Russian patent published in 2011 - IPC C05F3/06 

FIELD: agriculture.

SUBSTANCE: invention is intended for use in systems to produce organic fertilisers from liquid manure of farm animals and also for processing of organic wastes in municipal engineering. Line of manure recycling to produce biogas and fertilisers consists of manure collector, anaerobic bioreactor, pump, heat exchanger-condenser of heat pump joined into single circulation circuit, settling tank-accumulator of fertilisers with heat exchanger-evaporator of heat pump. Heat exchangers are joined to each other by means of compressor with gas motor drive on biogas to form thermodynamic circuit of heat pump. Heat exchanger-condenser of heat pump is arranged in the form of vertical pipe with hollow walls and is installed coaxially inside anaerobic bioreactor, heat exchanger-evaporator of heat pump is arranged in the form of submersible coil and is located in lower part of settling tank-accumulator of fertilisers. Between anaerobic bioreactor and settling tank-accumulator of fertilisers there is at least one additional bioreactor provided with pump and heat exchanger arranged in a manner similar to heat exchanger capacitor, in which heat energy of cooling liquid and exhaust gases is used from gas motor drive of heat pump compressor drive.

EFFECT: improved weight and dimension characteristics, increased efficiency of main process equipment of biogas and biosludge line.

1 dwg