Box-type resistance furnace
A box-type resistance furnace and furnace technology, which is applied to furnaces, furnace types, lighting and heating equipment, etc., can solve the problems of high maintenance cost, high difficulty, and low hardness of ceramic fibers.
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[0015] Specific embodiments of the present invention are described with reference to the accompanying drawings.
[0016] as attached figure 1 As shown: it includes an outer casing 1, a furnace 7 and a heating element, the heating element is located in the furnace, the furnace 7 is located in the outer casing 1, and an air cooling layer 6 is provided between the upper part of the furnace 7 and the outer surface on both sides and the inner wall of the outer casing; The hearth 7 is a gradient ceramic fiber hearth composed of inner and outer layers of ceramic fibers, wherein the inner layer is a high-temperature type ceramic fiber layer 4 and the outer layer is a low-temperature type ceramic fiber layer 5 . The inner bottom of the outer shell 1 is provided with a backing plate 2 capable of adjusting the height and level of the furnace, the furnace 7 is located on the backing plate 2, the backing plate 2 is fixed by the adjusting screw 3 and the bottom of the outer shell 1, and a c...
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