Fire Bricks Installation Best Practices for Glass Melting Furnaces

Stable operation of a glass melting furnace is the foundation of efficient production, and the installation quality of fire bricks directly determines the furnace’s lifespan and safety. Therefore, mastering scientific installation methods is crucial to the lifespan of the kiln.

1. Key points for selecting fire bricks for glass melting furnaces

The internal working conditions of a glass melting furnace are extremely harsh. Therefore, high-quality fire bricks with strong erosion resistance and good thermal shock stability must be selected.

For example, silica bricks are suitable for the superstructure, while fused zirconia-corundum bricks or fused mullite bricks are required for the parts in contact with molten glass.

When selecting materials, it is necessary to consider not only the chemical composition and physical properties, but also to check whether the brick shape and size deviation meet the standards.

In addition, different parts should use matching refractory mortar to ensure compatibility with the performance of refractory bricks.

2. Technical control during installation

Pre-masonry must be carried out before formal masonry. Especially for complex and irregularly shaped brick parts, which should be numbered and tested.

During construction, the steel structure of the furnace body must first be cleaned, and the foundation dimensions must be checked.

During the masonry process, the thickness of the brick joints is a core control indicator. The brick joints in the molten section of the wall are usually required to be less than 1 mm. So it is necessary to check them with a feeler gauge at any time.

At the same time, at the junction of refractory bricks of different materials (such as fused zirconia-corundum bricks and silica bricks), reasonable expansion joints must be reserved in accordance with design requirements. This is to prevent the bricks from cracking due to thermal expansion later on.

In addition, the joint between the ramming mix and the refractory bricks must be smoothed to prevent molten glass from seeping in.

3. Key inspection steps after masonry construction is completed

After the masonry work is completed, a comprehensive inspection is the last line of defense to ensure quality.

First, the inside of the furnace needs to be thoroughly cleaned of debris. Check the fullness and uniformity of the brick joints, and measure the flatness and verticality of the furnace wall.

At the same time, it is important to carefully check whether the expansion joint is correctly reserved.

Only through rigorous self-inspection and specialized inspection can we ensure that the entire masonry project meets the design requirements, creating favorable conditions for subsequent kiln firing and production.

In conclusion, the installation of refractory bricks for glass furnaces is a systematic project that requires comprehensive control over materials, construction, and inspection. At the same time, choosing a high-quality refractory fire brick supplier is also crucial.

Henan Ruitai Lianxin Refractory Materials Co., Ltd. has 20 years of experience in refractory material production. It can not only provide customers with high-quality refractory bricks that meet the required standards, but also provide the most suitable kiln operating conditions solutions.

Please feel free to contact us if you have any needs. Choosing Ruitai Lianxin means choosing strength.