Novel in-furnace cooling and denitration system of biomass fluidized bed furnace

• Main Authors: MA SIJIE, ZHANG RUNKAI, CUI CAN, GUO HAIQIN, LI BAOQIAN, SONG YUXI, XU GUANGHUI
• Format: Patent
• Language: Chinese; English
• Published: 26.08.2022
• Subjects: AIR; BLASTING; CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS; STEAM BOILERS; STEAM GENERATION; WEAPONS

The utility model relates to the technical field of denitration devices, in particular to a novel in-furnace cooling denitration system of a biomass fluidized bed furnace, which comprises a combustion chamber of the fluidized bed furnace, a plurality of water cooling wall tubes are fixed on the inner wall of the combustion chamber, and the lower ends of the water cooling wall tubes penetrate through the combustion chamber and are communicated with a plurality of lower headers. The upper ends of the water cooling wall pipes penetrate through the combustion chamber and are communicated with a plurality of upper collecting boxes, the upper collecting boxes are communicated with an upper furnace barrel through water outlet pipes, the upper furnace barrel is communicated with the lower furnace barrels through communicating pipes, and the bottoms of the lower collecting boxes are communicated with blow-off pipes. According to the biomass fluidized bed furnace, the heat efficiency of the biomass fluidized bed furnac