Fecha de publicación: 09/06/2020 Fuente: WIPO Agriculture Portada The utility model provides an agriculture and forestry biomass, garbage and coal co-coupling system used in a power plant. The system comprises an air separation facility, a garbage pretreatment facility, a garbage gasification furnace, a high-temperature heat exchanger, an agriculture and forestry biomass pretreatment facility, an agriculture and forestry biomass baking device and a coal mill, o2obtained through separation serves as a gasifying agent to be conveyed to the garbage gasifying furnace through the air separation facility and gasified together with household garbage, and obtainedN2 is used for baking agriculture and forestry biomass after being heated through the high-temperature heat exchanger; conveying the baked agriculture and forestry biomass to the coal mill, and crushing the baked agriculture and forestry biomass together with pulverized coal; and the baked gas preheats agriculture and forestry biomass or household garbage. Agricultural and forestry biomass, garbage and coal are organically coupled together, fuel synthesis gas is provided for the power generation boiler, the agricultural and forestry biomass and municipal solid waste can be jointly treated, heavy metal in the garbage is molten into harmless residues in the gasification furnace, and the biomass gasification furnace has the advantages of being simple in process, high in heat utilization rate,high in comprehensive efficiency, environmentally friendly and the like.