FIELD: power supply systems.
SUBSTANCE: invention relates to power supply systems and installations using renewable energy sources, as well as units producing fuel pellets from frozen peat. Peat in its processing place, at a moisture content of 50% or less, is ground in a frozen state in a rotary disk grinder. Next, Crushed peat is subjected to convection drying with hot air heated in a heat exchanger/cooler by geothermal gas, for example, carbon dioxide, at a pressure of 30 MPa and temperature of 250 ° C from the line of mining geothermal well to an expansion turbine with an electric generator, supplying power both to consumer and the production process and the consumer; and peat after grinding, air cooling, receiving granules and packaging, is delivered to the consumer and to the pellet boiler room. The boiler house provides heat supply to the consumer, as well as water-heating gas from a geothermal well at a pressure of 2 MPa and temperature of 40 ° C from an expansion turbine with an electric generator.
EFFECTS: the technical result is to increase the efficiency of obtaining fuel granules (pellets) from frozen peat and the integrated development of geothermal resources.
1 cl, 1 dwg
