| 摘要 |
PURPOSE:To perform internal temperature controls in a fluidized bed scrupulously by respectively providing control valves to control air amount to be supplied into each chamber on air supply pipings in such a way that an air chamber under the porous plate is partitioned by bulkheads into plural chambers in a fluidized bed incinerating furnace. CONSTITUTION:A fluidized bed furnace 1 has air supplied from an air chamber 4 received air supply through a nozzle 11 and from a jet flow air supply nozzle 5 while captured cinders (EP cinders) are supplied through a supply nozzle 6 to a fluidized bed 2 on a porous plate 3. The EP cinders are burned by undergoing operations of an auxiliary combustion burner 7, a starting burner 8, and air tower burners 9A, 9B. In this fluidized bed furnace 1, said air chamber 4 is demarcated in annular shape by concentric bulkheads 12a, 12b, chambers 4a-4c are formed into independent air chambers. Each chamber has respectively pipings 13a-13c incorporated control valves 14a-14c connected, to separately and optionally control air amount supplied into each chamber 4a-4c. |
