Tunnel type heating equipment for surface transmission of infrared radiation

Equipment (60) for the surface emission of infrared radiation for treating an object with said infrared radiation, comprising at least one surface emission device (1) arranged in such a way that its face (3b) emitting the infrared radiation faces toward said object, said surface emission device (1) comprising a seat of catalytic combustion (2) comprising a catalytic combustion wall (3) made of material permeable along its thickness and designed for the passage of a mixture (4) for burning, from its upstream face (3a) to its downstream face (3b) emitting said infrared radiation and discharging the flue gases (25), characterized in that, in combination:

• the surface emission device (1) comprises a box (21) in which the seat of catalytic combustion (2) is arranged at least in part, and in which there is formed an opening (22) facing the downstream face (3b) of the catalytic combustion wall (3);
• at least one window pane (23) made of transparent ceramic material is mounted so as to form, with the seat of catalytic combustion (2), a circuit (24) for discharging the flue gases (25) leaving via the downstream face (3b) of said surface emission device (1);
• said equipment comprises a secondary surface emission metal sheet (64) forming a flat circulation channel (65) for the flue gases (25) and communicating on the one side with the circuit (24) for discharging the flue gases (25) of the surface emission device (1) and, on the other wised with at least one outlet pipe (66) for transferring the flue gases (25) out of the equipment.