| 摘要 |
FIELD: agriculture.SUBSTANCE: poultry droppings is dehydrated in a device of mechanical dehydration (1) which is connected by the collector of refined liquid (2) by means of sequentially located steriliser (3) constituting the autoclave, and a concentrator (4) through the saturation device (15) with the device of coal unloading. The resulting liquid is subjected to the 10-12 fold evaporation at a temperature of 130-140°C in the concentrator (4). The condensate deflected from the concentrator (4) enters the collector (5). The preliminarily dewatered droppings is supplied to the drier (6), where the drying agent is a mixture of passing through the heat exchanger (13) flue gases and air, formed in the device of preparation of the drying agent (14). Dry poultry droppings and a part of uncondensed fraction of the steam gas mixture, which is the heat conductor and the transport medium, is fed to the fluidised bed reactor (7), where the pyrolysis stage is carried out at a temperature of 450-550°C and a heating rate of 1000°C/s followed by separation of the degradation products on oil-carbon sludge and steam gas mixture. The oil-carbon sludge is separated from the gaseous products in a cyclone (8) and fed to the coal collector (11) from which the fine carbon is discharged and packed in the container cassettes. The container cassettes are saturated with the evaporated liquid in the saturation device (15) to a degree of saturation which does not exclude flowability. The steam gas mixture is deflected to the condenser (9).EFFECT: invention enables to improve the efficiency of oil-carbon sludge as fertiliser, as well as to reduce pollution of oil-carbon sludge and to provide reliable sterilisation of the product.2 cl, 1 dwg |
