Method for management of impregnated wood wastes, preferably railway sleepers, by means of gasification method, with production of electric and heat energy

摘要

The way in which impregnated wood waste is disposed of, in particular the rolling stock, the method of reconciling it with the production of electricity and heat, is characterised by the fact that prepared, granulated 5-80 mm wood waste impregnated from a reservoir (1) shall be fed to a known sintering reactor (3) through at least one sludge reservoir (2),where the low-calorific process gas 4-6 MJ/nm3 with temperature 650-750-C is produced, directed to the repellent cyclone (5),and then cooled air from the fan (8) in the heat exchanger (7) to the temperature 400-500-C. Heated in the heat exchanger (7) to the temperature 100-200-C hot air is fed to the condensation reactor (3). The process gas cooled in the heat exchanger (7) is then discharged into the ceramic filter set (9),then the 350-450-C process gas is transferred to the cooling unit (10),equipped with at least two heavy fraction condensation coolers and a light fraction condensation cooler, from which the heavy condensation fraction is directed to the condensation reactor (3),and the fraction of the light process gas at temperature 30-50oC is directed to the demister (11). Subsequently, the diluted, cooled and purified process gas (13) by an additional sludge separator (14) is directed to the exhaust engine (16.1) of the electrical generating unit (16). The exhaust engine cooling system (16.1) of the electrical generating unit (16) cooperates with the heat exchanger (15). Combustion burns from the exhaust engine (16.1) of the electrical generating unit (16) through the exhaust ignition and exhaust aftertreatment system (17) shall reach the heat exchanger (18),from which, after passing through the exhaust monitoring system (19) are directed to the chimney (20).