FIELD: furnaces and plates.
SUBSTANCE: invention relates to a roller hearth furnace. Furnace comprises a plurality of cooled furnace rollers (1), which in the transportation direction (T) are located at a distance from each other and which on an axis installed with possibility of rotation, comprise a row of support rings, wherein rollers (1) in the direction of the axis between two support rings are made with insulation from insulating fibrous material, as well as funnels (2) for scale located under furnace rollers (1). At that, in free spaces between each two furnace rollers (1), located one after another in direction (T) of transportation, furnace is equipped with barriers (4) for scale, wherein furnace rollers (1) and scale barriers (4) are arranged across transportation direction (T).
EFFECT: considerable reduction of the effect of scale or scale particles on the insulating fibrous material of the furnace rollers and, thus, increased service life of the furnace rollers.
4 cl, 1 dwg
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