SYSTEM FOR OPTIMIZING THE COMBUSTION FOR PULVERIZED SOLID FUEL BOILERS AND BOILER INCORPORATING SUCH SYSTEM

摘要

The invention relates to a system for optimizing combustion for pulverized solid fuel boilers, comprising: groups of main burners (2D, 2C, 2B); main mills (3D, 3C, 3B) corresponding to the groups of main burners (2D, 2C, 2B); main transport lines (22) connecting the main mills (3D, 3C, 3B) with the groups of main burners (2D, 2C, 2B); an auxiliary mill (3A) in parallel with each group of main burners (2D, 2C, 2B); and an auxiliary transport line (23) comprising: an ascending section (16) connected to the auxiliary mill (3A); a descending section (18); a transitional section (17) connecting the ascending section (16) and the descending section (18); a distributor (4) at the end of the descending section (18); and descending distribution lines (19, 20, 21) from the distributor (4) to each corresponding main transport line (22). The invention provides differential fuel input patterns and improved solid fuel transport, with versatility and a simplified structure.