Glass kiln firebrick

Glass tank kiln refractory bricks in various parts of the application as described below.

1, pool wall brick

Melted soda calcium silicon material, boron material pool pool kiln ideal brick wall material is fused zirconia corundum brick. Tilting castings with 33% ZrO2 content, sprue outwards, underneath. Melting alkali-free or low-alkali glass fiber due to acid erosion, pool wall brick material should choose AZS brick or dense zircon stone brick, fused silica brick can also be used.

2, bottom brick

Bottom brick requirements can be wear-resistant and integrity. Now use multi-layer composite pool bottom structure. Multi-layer structure is generally in the main layer - clay brick masonry insulation layer below. Top of the clay brick with protective layer and wear layer. Protective housing with zirconium ramming material or fused corundum ramming material. Wear layer in the protective layer above to protect the ramming pool bottom, direct contact with the glass of liquid. Commonly used with good corrosion resistance, wear resistance of the AZS brick. The use of composite bottom structure of the effect is: to reduce heat loss, extending the life of the bottom. In the melting of heavy metals containing glass (such as lead glass) or erosion of heavier glass (such as milk glass) in order to prevent leakage, in the original protective layer, wear layer and then add a protective layer and Wear layer. The original protective layer and wear layer, also known as sub-paving layer, available sintered AZS brick or zircon brick.

3, feeding pool brick

Feed tank brick by the powder and glass material erosion of the erosion of the material layer, the flow erosion and the impact of the flame, so the damage is more serious. High-temperature wear-resistant corrosion-resistant materials need to be used, commonly used shrinkage-free zirconia corundum brick containing ZrO2 41%, and increase the brick thickness, and strengthen the air-cooled. In addition to corner brick. Other parts can be used ordinary cast 33-AZS brick. The lower feed tank brick liquid can be considered with cast kaolin brick.

4, fluid hole brick

In the pool kiln, the flow velocity of the liquid glass is the largest and the convection is obvious, so the abrasion is serious and the erosion is accelerated. Therefore, the flow hole cover tile should be non-shrinkage AZS-41 brick, liquid hole sidewall brick is best to use the same material with the cover brick. At least it seems that the use of non-shrinkage fused brick. Molten borosilicate glass fused silica brick.

5, cooling pool and forming pool brick

Cooling, forming pool is already melting, Cheng Hao good glass. Has entered the later stage of the melting process. at this time. Glass must not cause any defects (including bubbles, stripes, stones). The 33-AZS brick produced by the oxidation process for the cooling pool requires a glass phase precipitation temperature of 髙 and does not impart bubbles to the glass solution

6, kiln roof and chest wall with brick

The damage characteristics of this part of the brick erosion (the main visit alkaline sulfate agglomeration, the formation of honeycomb-like erosion) and burning. It is required to use a material that is extremely stable to alkali vapor at high temperature and has a high load softening temperature and creep resistance. You can choose from silica bricks, high quality silica bricks and fused AZS-33 bricks.

7, front wall and wall tiles with flowers

This is the front of the melting chamber, the latter two walls. They also have two damage features, erosion and burn-in. In addition, the front face wall is subject to wear and erosion of the batch material and erosion of the overflow flame, which is one of the weaker parts of the pond kiln. Currently used 33 # fused zirconia corundum brick. There are also high-quality composite sintered AZS and AZS (such as L-shaped wall.) In addition to using the front wall of high-quality silica brick also need to meet the air-cooled.

8, stove with brick

Small brick brick town into the jet mouth, small neck, nozzle brick and other parts to consider. Fireplace brick requirements can be high temperature, corrosion resistance, erosion resistance, but also have a certain degree of thermal shock resistance. If the furnace gas (heat load is small) can be used silica brick, or even kaolin brick, if the burning of high calorific value fuel (heat load), the fire mouth 碹 brick, fire mouth wall brick, floor brick, Inclined sandwich sandwich brick, tongue brick and pushers with 33 # fused zirconia corundum brick, the bottom plate can also be sintered compact corundum brick.

9, the selection of special parts of refractory materials

Pool kiln masonry some special parts. Such as the bubbling hole, kiln ridge, electrode holes, inspection holes, measuring holes and so on. They have a special purpose, but also have their own damage characteristics. Bubble brick is subject to intense wear and tear of the fast circulating fluid flow caused by bubbling. The larger temperature difference between the inner and outer surfaces of the foam cell brick can cause mechanical stress. Easily lead to crack. Kiln bricks will also suffer from intense high temperature liquid flow damage. Both types of bricks can be preclude the use of oxidation production of non-shrinkage 41 # fused zirconia corundum brick. Electrode hole brick due to the strong erosion of the circulating fluid around the electrode, but also due to electrode cooling caused by the large temperature difference within the brick, resulting in large mechanical stress. Radiation cracks appear around brick holes. Therefore, the requirements of brick corrosion, wear-resistant, but also have a certain thermal shock resistance and high resistance. In addition to considering the selection of materials, their electrical properties. Also consider the glass liquid glass conductivity and electrode arrangement. Generally preclude the use of the oxidation of non-shrinkage hole # 41 fused zirconia corundum brick, the material of the poor thermal resistance, consider the use of fused silica brick or sintered dense zirconium brick production. Measuring hole, check the hole brick by the long-term erosion of the flame overflow kiln, easily be burned and cracked, commonly used custom with 33 # fused zirconia corundum brick.