What is the role of mullite polylight insulation bricks in industrial furnaces?

The difference in thermal insulation refractory insulation materials and quality leads to great differences in refractory insulation materials, and the thermal shock reliability of mullite insulation bricks is weak. When applying mullite insulation brick wall kiln lining, the temperature elevator speed is not suitable for too fast, otherwise the lining cracking is damaged. For the mullite insulation bricks with the wall on the surface of the lining, structural reinforcement measures must be taken. For example, it is reinforced with a thick steel plate or a metal material support rod structure.

 

Because mullite poly light insulation bricks have a high porosity, they cannot bear excessive loads when applying mullite insulation bricks, and also prevent contact with molten metal materials, slag and high temperature furnace dust; When mullite is used to insulate bricks, the brick joints and the creping joints should be properly laid out to prevent the infill wall from being crushed due to soaring. Mullite insulation bricks shall not be subject to obvious mechanical equipment vibration, collision and friction.

Features of mullite insulation brick: 

1.Low heat transfer rate, with very good thermal insulation effect; 

2.Low heat and melting, because of low heat transfer rate, mullite series products have very little light insulation bricks. Energy, the actual effect of energy saving in intermittent practical operation is remarkable;

3.The low residue content has extremely low content of compound such as iron box alkaline earth metal, so the refractoriness is high; the high aluminum content keeps it under the recovery atmosphere Good characteristics; 

4.Hot pressure test has high compressive strength; 

5. Accurate appearance, accelerate wall rate, reduce refractory mud demand, ensure the compressive strength and reliability of the infill wall, and then increase the lining The service life; 6. Can be produced into a unique shape to reduce the number of bricks and joints.

 

The mullite poly light insulation brick can be used to touch the lining of the working face of the flame kiln, which can obviously improve the practical effects of environmental protection and energy saving of the kiln.