PL404458A1 - Method of autothermal valorisation of biomass or organic waste and a device for autoothermal valorization of biomass or organic waste - Google Patents

Abstract

The method of autothermal valorization of biomass or organic waste is characterized by the fact that the pre-prepared biomass or organic waste moves on the surfaces of at least two successively located above each other conveyors in the chamber of a closed reactor, heated from below, flowing counter-current, mixed with air at a temperature of from 180 ° C to 320 ° C for 30 to 60 minutes, from the combustion of gases from the autothermal mixture valorization in the reactor, in a cyclone combustion chamber with a controlled supply of air, where the heating flue gases are discharged from the reactor chamber to the chimney, while leaving the reactor cooled to a temperature of at least 70 ° C and discharged into a vessel. The device for autothermal valorization of biomass or organic waste has a reactor (1) with a chamber (2), inside there are upper (14) and lower (17) scraper conveyors for carrying the torrefied mixture (44), the interior of which (16, 17) and the upper belts (15, 18) are heated by the combustion gases from torrefaction in the cyclone chamber (21) with the burner (22) in its bottom (23) and the exhaust ports (24, 25), through the mating channels, upper (36) and lower (37) and, respectively, through inlets (6, 7) in the side wall (5) of the chamber (2), having walls: upper (3) with an inlet (4), cooperating with a cell feeder (34) connected by a screw conveyor (33) with a waste loading bunker (32), the lower (12) with the torrefied (45) outlet (13), discharged through the screw conveyor (35) to the container (43) and the rear (10) with the torrefied gas outlet (11) the mixture through the duct (31) to the cyclone chamber (21) supplied with air from the fans, the main (27) and the auxiliary (29) via a channel (28), a channel (30) and an inlet (26), respectively, where the exhaust gas outlets (8, 9) in the side wall (5) are connected respectively through the channels (38, 40) and their outlets (39, 41) with the chimney (52), and the pump (42) is connected to the screw feeder (33) of the torrefaction, while the cyclone chamber, the reactor (1) chamber (2) and the flue gas ducts, the chimney (52) and the torrefaction conveyor (35) are adequately equipped with thermocouples T1 (46), T2 (47), T3 (48), T4 (49) and T5 (50), as well as with an automatic exhaust gas analyzer A (51) discharged to the chimney (52).