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Several common glass annealing furnaces
Glass annealing furnace insulation has a variety of forms, according to the type of heat treatment glass classification, common forms are the following:

Application of ceramic fiber materials in glass annealing furnace
● application of ceramic fiber refractory in glass annealing furnace hearth:
Glass annealing furnace refractory insulation material structure is generally:
Side wall: lightweight high alumina brick + ceramic fiber board ( aluminum silicate fiber board ). 
Furnace bottom: light high alumina brick + refractory insulation brick + insulation brick
Top: refractory ceramic fiber blanket + ceramic fiber folding block / ceramic fiber module
① ② ③ ④ furnace hearth insulation: ceramic fiber lining insulation, 250 mm thick standard ceramic fiber board, staggered seam layer structure.
⑤ furnace hearth insulation: ceramic fiber lining insulation, 370 mm thick zirconium-containing ceramic fiber board + high aluminum + standard ceramic fiber board, with staggered seam layer structure.
⑥ furnace hearth insulation: ceramic fiber lining insulation, 250 mm thick standard ceramic fiber board, staggered seam layer structure.
⑦ furnace hearth insulation: ceramic fiber lining insulation, 400 mm thick alumina fiberboard + zirconium + high aluminum + standard ceramic fiber board, staggered seam layer structure.

● Application of ceramic fiber in other parts of glass annealing furnace:
( 3 ) furnace type metal roller table heat preservation:
The metal roller table is located in the middle of the annealing furnace, and the upper and lower surfaces of the thick glass plate are heated to ensure uniform temperature during heat treatment. Metal roller way to adopt good sealing heat insulation materials for protection. The roller table heat insulation seal designed and invented by our company is carved by ceramic fiber board according to the roller table size ( small size ); Roller table sealing insulation block, wet mold forming ( large ); Is formed by buckling two-part semi-ring shapes. Good sealing property and prolonged rolling service life. Different furnace roller size, spacing is different, roller seal corresponding to a variety of specifications.

① ② Furnace flue heat preservation:
The flue is coated with light heat-insulating ceramic fiber castable, the standard ceramic fiber blanket is coated on the outside, and the outermost layer is coated with galvanized iron sheet or wrapped with glass fiber cloth and coated with heat-resistant paint.
① ② ③ ④ ⑤ ⑥ ⑦ furnace type protective gasket:
When annealing the glass parts in the furnace, ceramic fiber paper is selected as the heat insulation protection gasket at the bottom. Below 1000 ℃ choose standard ceramic fiber paper, above 1000 ℃ is to choose the corresponding specifications of high aluminum or zirconium ceramic fiber paper.
Daily glass, process glass heat treatment with insulation gasket generally choose standard ceramic fiber paper 0.5 mm, 1 mm, 2 mm thick.
Technical advantages of ceramic fiber lining

Ceramic fiber lining as a lightweight, efficient refractory insulation lining, compared with the traditional refractory lining, has the following technical performance advantages:
1. low bulk density
2. low thermal capacity
3. low thermal conductivity
4. the construction is simple and convenient, need not leave expansion joints.
5. wide application range
6. thermal shock resistance
7. resistance to mechanical shock
8. need not oven, lining construction can be put into use. 
9. sound insulation performance is good, can significantly reduce noise pollution. 
10. the high thermal sensitivity of ceramic fiber lining is more suitable for automatic control of heating furnace. 
11. the chemical properties of ceramic fiber lining is stable, in addition to phosphoric acid, hydrofluoric acid and alkali, other acids, alkali and water, oil, steam are not eroded, and lead, aluminum, copper infiltration.