Clay bricks for glass kilns:

The main components of clay bricks are Al₂O₃ and SiO₂. The content of Al₂O₃ is between 30% and 45%, and the content of SiO₃ is between 51% and 66%. The operating temperature is 1350~1500℃. In the glass industry, clay bricks are used to build the bottom of kilns. The pool wall of the working part and the passage, the wall of the regenerator, the sill, the lower lattice brick and the flue. As the temperature increases, the volume of clay bricks also expands. When the temperature exceeds 1450°C, the volume shrinks again.

High alumina bricks for glass kiln:

The main components of high alumina bricks are also SiO₂ and Al₂O₃, but Al₂O₃ should be greater than 46%. It is made of corundum, high alumina bauxite or sillimanite minerals (Al₂O₃-SiO₂) as raw materials. The density is 2.3~3.0g/cm³, the apparent porosity is about 18%~23%, and the maximum operating temperature is 1500~1650℃. When the porosity of the high alumina brick is low, the corrosion resistance is better. High-alumina bricks can be used to build the pool wall of the cooling section, the regenerator, and the regenerator wall.

Mullite bricks for glass kilns:

The main component of mullite brick is Al₂O₃, and its content is about 75%. Because it is mainly mullite crystal, it is called mullite brick. The density is 2.7~3.2g/cm³, the open porosity is 1%~12%, and the maximum operating temperature is 1500~1700℃. Sintered mullite is mainly used to build regenerator walls.

Fused mullite is mainly used for building pool walls, observation holes, wall stacks, etc.

Fused zirconium corundum brick for glass kiln:

Fused zirconium corundum bricks are also called white iron bricks. Generally, fused zirconium corundum bricks are divided into 3 grades according to the content of zirconium: 33%, 36% and 41%. The zirconium corundum bricks used in the glass industry contain 50%~70% Al₂O₃ and 20%~40% ZrO₂. The density is 3.4~4.0g/cm³, the apparent porosity is 1%~10%, and the maximum operating temperature is about 1700℃. Fused zirconium corundum bricks with zirconium content of 33% and 36% are used to build kiln pool walls, flame space parapets, small furnace craters, small furnace flats, small furnace stacks, tongues, etc. The zirconium content is 41%. % fused corundum bricks are used to build the corners of the pool wall, liquid holes and other parts where the glass liquid has the most severe erosion on the refractory material. This material is the most widely used fused cast refractory in the glass industry.

Fused alumina brick for glass kiln:

It mainly refers to fused α, β corundum, fused β corundum fused cast refractory bricks, mainly composed of 92%~94% Al₂O₃ corundum crystal phase, density 2.9~3.05g/cm³, apparent porosity 1%~10%, the highest The operating temperature is around 1700°C.

Fused alumina has excellent resistance to glass dialysis and hardly pollutes the glass liquid. It is widely used in the working part pool wall, pool bottom, runner, working part forehearth pool wall, forehearth pool bottom and other parts of glass melting furnace that are in contact with glass liquid and require no refractory contamination.

Quartz brick for glass kiln:

The main component of quartz brick is SiO₂, which contains up to 99%, the density is 1.9~2g/cm³, the refractoriness is 1650 °C, the working temperature is about 1600 °C, and it is resistant to acid erosion. Flame space thermocouple hole brick, etc.

Alkaline refractories for glass kilns:

Alkaline refractories mainly refer to magnesia bricks, alumina magnesia bricks, magnesia chrome bricks, and forsterite bricks. Its performance is resistant to the erosion of alkaline materials, and the refractoriness is 1900~2000℃. It is widely used in the upper wall of the regenerator of the glass melting furnace, the turret of the regenerator, the body of the regenerator, and the partial structure of the small furnace, etc.

Insulation bricks for glass furnaces:

The heat dissipation area of glass furnaces is large and the thermal efficiency is low. In order to save energy and reduce consumption, it is necessary to use a large number of thermal insulation materials for comprehensive thermal insulation. Especially in the regenerator, melting part, working part and other parts of the pool wall, pool bottom, turrets, walls should be insulated to reduce heat dissipation. The porosity of the thermal insulation brick is very large, the weight is very light, and the density does not exceed 1.3g/cm³. Due to the poor heat transfer performance of air, thermal insulation bricks with large porosity have a thermal insulation effect. Its thermal conductivity is 2 to 3 times lower than that of general refractory materials, so the larger the porosity, the better the thermal insulation effect. There are many different types of insulation bricks, including clay insulation bricks, silica insulation bricks, high alumina insulation bricks, etc.