– To provide customers with the most professional thermal insulation solutions –
– An overview of the –
Glass melting kilns can be divided into crucible kiln, intermittent kiln and continuous basin kiln.
Generally, it is a combination of flame – electric melting glass furnace. They all include glass melting, heat supply, waste heat recovery and smoke exhaust gas four parts.
There is a large amount of waste heat when the flame leaves the furnace, which can be used to heat combustion air and gas to improve the flame temperature and save fuel. The waste heat is recovered mainly by regenerator or heat exchanger.
Glass melting furnace:
The maximum working temperature of the kiln is 1600℃, and the temperature fluctuation range of each part is 100-200℃.
Glass solution containing silica, acidic, corrosive;
Strong mechanical erosion of glass fluid flow.
Crown: Silicon sealant (wear resistant layer) + light silicon brick (thermal insulation) + ceramic fiber pouring 100mm (thermal insulation).
Pool wall: fused zirconium corundum brick, AZS brick or compact zirconite brick.
Pool bottom: the composite insulation structure with strong integrity, fused AZS brick + zirconite ramming material or fused corundum ramming material (wear-resistant layer) + clay brick (insulation layer) + ceramic fiber board 2 layers 30mm thick, staggered layer (insulation layer).
Refractory brick: high-grade magnesia brick (top) + medium-grade magnesia brick (middle) + low-porosity clay brick (bottom), Parapet and microfurnace, charging crown, liquid tunnel, cooling crown, molding crown, etc., all in different grades: silica brick, fused zirconium corundum brick, AZS-33 brick, -Al2O3 brick.
Float glass tin tank: high density firebrick or heavy castable + clay insulating brick + ceramic fiber board (insulating layer) for tin tank: 1100℃ at the front end and 600℃ at the end.
The application of amorphous refractories in glass kiln is also a developing trend. The use of fire-resistant concrete block masonry in the UK, such as thermal storage, grain-based crown, flue, small furnace tray, burner, etc., greatly reduced the joint of the furnace structure, increased furnace construction speed, and reduced cold repair time.
High alumina brick, light silica brick and fiber are widely used in glass kiln insulation abroad, mainly based on aluminosilicate fiber. In Addition to diatomite, aluminosilicate and silicate fibre materials, light products based on calcium silicate are widely used in Germany.
Float glass annealing furnace: the maximum annealing temperature of float glass is 540-570℃, and the heat preservation is 2min. Annealing furnace has no heat preservation and relies on steel shell for heat dissipation.
– 技术优势 –
Ceramic fibreboard performance:
- Low thermal capacity, low thermal conductivity
- High compressive strength and long service life
- Accurate size, good flatness
- Homogeneous structure, easy to machining
- Light insulation keeps the temperature of the solution in the kiln better