Fuel-containing unburnt brick.

摘要

In an air dried brick containing fuel, the fuel is included in the centre whereas the edge areas remain free. Thereby, it is possible to obtain a sufficient fuel concentration in order to do without additional energy supply in the heating of the furnace tunnel. The inclusion of the fuel is effected in an extruder. The fuel is introduced at the centre of the mass to be extruded in the extruder between its supply and its outlet. Such air dried bricks give a remarquable result from the combustion point of view.