Flame tube for industrial furnace radiant-heating tube - is highly heat-resistant ceramic lattice frame with more conductive ceramic in openings

摘要

The flame tube for a radiant-heating tube in an industrial furnace has a self-supporting lattice structure comprising rings (5) linked by axial bars (8). This structure is of highly heat-resistant ceramic-fibre material, vacuum-formed. The lattice openings also have a ceramic filling (6) but one of thermally more conductive material, embedded into the lattice along its edges also by a vacuum process, using a former. Filling panels can be curved or flat forming a regular polygon. They can alternatively be produced separately and fixed using ceramic pins, with edge-sealing.