Patent ID: 8234985

Claim:
A boiler for drying, igniting and combusting refuse and producing steam by heat exchange with flue gases, the flue gases being the results of incineration of the refuse and the flue gases including both a less-corrosive gas flow and a corrosive gas flow, the boiler defining a main flow direction of the flue gases, the boiler comprising a separator element and an end superheater, the separator element being positioned in the path of both the less-corrosive gas flow and the corrosive gas flow to separate the flue gases into streams of less-corrosive gas flow and corrosive gas flow, the separator element extending in a direction substantially along the main flow direction of the flue gases, the separator element comprising a pipe having one or more nozzles adapted to blow cool recirculated cleaned flue gases following the main flow direction in between the less-corrosive gas flow and the corrosive gas flow, wherein these gas flows continue in two separate streams in the main flow direction, and wherein the end superheater is located in proximity to the separator element and in the path of the less-corrosive gas flow.