Method and device for producing superheated steam by means of the heat produced in the boiler of an incineration plant

A method for generating superheated steam by using heat generated in a boiler of an incineration plant,

• the boiler comprising a final superheater comprising a plurality of final superheater pipes, the final superheater pipes being arranged at least partially in at least one cavity formed in an interior of a wall element of the boiler and/or formed in an interior of a bulkhead arranged in the boiler, wherein the cavity is closed off on a boiler side at least partially by a refractory material layer that is flowed over by flue gas released during combustion, the method comprising:
• flowing a secondary medium through the cavity, thereby heating the secondary medium via heat transfer from the flue gas via the refractory layer;
• feeding the heated secondary medium via a secondary medium feed line to a secondary heat exchanger;
• and
• feeding pre-superheated steam through the final superheater pipes to finally superheat the pre-superheated steam to a temperature in a range of from 450° C. to 650° C.