Biomass gasification coupling coal-fired power generation system

The utility model provides a biomass gasification coupling coal-fired power generation system which comprises a biomass raw material module, a fly ash circulation module, a waste heat recovery module and a coal-fired unit module which are sequentially connected through pipelines. The device has the beneficial effects that the two stages of cyclone separators are arranged, and the separated particles which are not completely reacted are all sent back into the gasification furnace to be continuously gasified, so that the gasification efficiency is effectively improved while the dust content of the fuel gas is reduced, and the energy consumption is reduced. Clean and efficient utilization of biomass is realized; the waste heat recovery device adopts a high-pressure water closed circulation loop, so that heat is recovered, and meanwhile, contamination and blockage of a heat exchanger caused by tar condensation in biomass gas are avoided. 本实用新型提供了一种生物质气化耦合燃煤发电系统，包括生物质原料模块、飞灰循环模块、废热回收模块和燃煤机组模块，所述生物质原料模块、飞灰循环模块、废热回收