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The main factors that affect the formation of the kiln skin are as following:

1. The chemical composition of raw materials: The kiln skin is the product of the process formed from liquid phase into solid phase of the material. The more the aluminum and iron components is, the more the liquid phase, the easier the kiln skin formed.

2. Flame temperature: if the flame temperature is low, the formation of liquid phase is relatively small, and it is not easy to form the kiln skin; if the flame temperature is too high that will make the temperature of kiln skin higher than the liquid phase of solidification temperature, and kiln skin easily fall off.

3. Flame shape: kiln skin temperature is influenced by flame shape, heat dissipation of kiln shell and other related factors. Generally speaking, too short, too fast and too thick wide flame has relatively serious erosion on kiln skin; Long flame is more favorable to kiln skin, however, it will disperse the heat of the kiln which is not good to refractory bricks.

4. Position of burner: unreasonable installation will directly affect the shape, length and firm level of kiln skin in glass furnace, and even affect the quality and life of refractory bricks. Generally, burner is installed in the third quadrant close to 0 place and 200 - 300mm entering the kiln, and coal pipe inclination need be slightly lower than the kiln slope.

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