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AssigneeStein Industrie
InventorsJean Fournier, Adrian Casariego
Estimating the term…
Vertical tubes joined to each other by means of welded coupling fins and forming boiler baffles for refuse incinerators are placed between refractory bricks and provided with vertical auxiliary anchoring fins which make an angle of 30.degree. to 60.degree. with the plane of the coupling fins and are interrupted at intervals over vertical sections of the tubes. One portion of the bricks is provided with vertical recesses corresponding to the auxiliary fins over a fraction of their height from the bottom and the other portion of the bricks is provided with vertical recesses up to their full height. The bricks of the first portion are anchored to the top portion of the auxiliary fins and the bricks of the other portion are engaged on these fins above a brick of the first portion.
A device for shielding the baffles of waste-heat boilers and in particular for refuse incinerator furnaces, said baffles being formed of vertical tubes which are joined to each other by means of welded coupling fins and are disposed behind refractory bricks, anchoring means for anchoring said refractory bricks to said tubes, wherein said anchoring means are vertical auxiliary fins welded to said tubes and making an angle between 30.degree. and 60.degree. with the plane of the coupling fins, wherein the auxiliary fins are interrupted at intervals over vertical sections of the tubes, wherein a first portion of said refractory bricks is provided with vertical recesses which correspond to the auxiliary fins both in width and in thickness but extend from the bottom upwards only to a fraction of their height and wherein another portion of said refractory bricks is provided with vertical recesses which extend to their full height, and wherein the bricks of the first portion are anchored to the upper portion of the auxiliary fins and the bricks of the other portion engage said auxiliary fins above a brick of said first portion.
A method of construction of a device for shielding boiler baffles for refuse incinerator furnaces, comprising the steps of welding a longitudinal fin between pairs of tubes, interrupted at intervals over a fraction of its height, cutting the fin connecting each pair at the center so as to form an auxiliary fin of small width on each tube, disposing the tubes in parallel relation in a plane, with the auxiliary fins inclined at an angle between 30.degree. and 60.degree. with respect to said plane and oriented towards each other, joining the tubes to each other by means of coupling fins welded between adjacent tubes, engaging a refractory brick on the upper portion of a pair of auxiliary fins, providing said refractory brick with vertical recesses which correspond in width and in depth to the thickness and the width of the auxiliary fins and which extend only over a fraction of their height from the bottom upwards, and engaging at least one other refractory brick provided with vertical recesses extending to its full height on the pair of auxiliary fins above the first refractory brick and repeating the operation up to the full height of the tubes.
Dependencies are inferred from the claim text.