CLEANING SYSTEM OF CONVECTION HEAT TRANSFER SECTION OF CIRCULATION FLUIDIZED BED BOILER

摘要

PROBLEM TO BE SOLVED: To provide a cleaning system of a convection heat transfer section of a circulation fluidized bed boiler capable of being operated at low operating cost, providing a continuous cleaning effect, and also providing a more stable cleaning effect. SOLUTION: In this cleaning system of the convection heat transfer section of the circulation fluidized bed boiler in which various types of wastes are burned for heat recovery, a ceramic particle storage device 401 is installed on the upper inlet 100 side of the convection heat transfer section 4 allowing combustion gas to flow therein. Ceramic particles are supplied from the lower part of the storage device into the convection heat transfer section 4 via a particle supply tube 403, and the the ceramic particles separated by a bag filter 5 and a separator 6 for separating combustion ash from the ceramic particles located in the downstream of the convection heat transfer section 4 are allowed to circulate into the storage device 40. COPYRIGHT: (C)2005,JPO&NCIPI