SOLID FUEL FIRED BOILER PLANT AND FURNACE UNIT AND FLUE GAS UNIT FOR USE IN SUCH A BOILER PLANT

摘要

The invention relates to a solid fuel boiler plant comprising a combustion section (5) and a flue gas section (6). The invention further relates to a furnace unit and a flue gas unit. The combustion section (5) and the flue gas section (6) have a first lateral wall (1, 11), a second lateral wall (2, 12), a third lateral wall (3, 13) and a fourth lateral wall (4, 14). The lateral walls (1, 2, 3, 4, 11, 12, 13, 14) are formed by pipings (2) with a heat transmission medium, preferably water/steam, inside the pipes (22). The second lateral walls (2, 12) of the combustion section (5) and the flue gas section (6), respectively, coincide. The second lateral wall (2, 12) extends in parallel with a substantial flow direction of the flue gas through the combustion section (5) and the flue gas section (6), respectively, and forms a shelter wall between the combustion section (5) and the flue gas section (6). In a preferred embodiment the combustion section (5) is provided with a lining (8).