The difference between refractory castables and refractory bricks used in boilers

Boilers are common thermal equipment used in many industries such as metallurgy, электричество, and building materials to provide heat sources. Different industries choose different types of boilers. Regardless of the type of boiler, it needs to burn materials to provide heat sources for recycling. The boiler lining needs to have wear-resistant refractory materials. Whether it is refractory bricks or refractory castable masonry, it must meet the use requirements of the boiler lining.

Boiler refractory castables

Refractory castable is a kind of amorphous refractory material. It is a granular material formed by mixing refractory raw materials such as refractory aggregate and refractory powder with binder admixtures. When in use, add the appropriate amount of water, stir as required, and then pour into the installed mold. It is put into use after curing, baking, формование, and other processes.

Refractory castables can produce suitable casting materials according to the boiler’s application location. By selecting high-quality raw materials, various refractory castables can be processed, such as high-alumina castables, mullite castables, corundum refractory castables, и т. д..

Types of boiler wear-resistant castables?

Wear-resistant refractory castables for boilers are generally high-aluminum wear-resistant castables and corundum wear-resistant castables. The appropriate refractory castable can be selected for casting the lining according to the requirements of the used part.

Boiler refractory bricks

Refractory bricks are the main refractory materials used in industrial furnaces. Refractory bricks can be made by selecting several high-quality refractory aggregates as the main refractory raw materials according to the requirements of the use site, adding powder, binder, и т. д., stirring, pressing and forming, сушка, and then sending them into a high-temperature kiln for firing. Refractory bricks can be designed in a variety of brick shapes according to the masonry site, and refractory mud is used to bond the refractory bricks together. Refractory bricks can be built to the required thickness according to demand.

Refractory bricks for boilers also need to follow the principles of wear resistance, устойчивость к эрозии, устойчивость к термическому удару, и т. д.. They need to have high-temperature performance and resist long-term scouring and erosion by materials and airflow placed in the boiler.

Advantages of refractory bricks and refractory castables in boilers

The advantages of refractory castables for boilers are a short production cycle and easy construction. They can be poured according to the construction site and construction requirements. Однако, the construction process is more important. The quality of construction is closely related to the long service life of the lining cast by refractory castables for boilers.

The advantages of boiler огнеупорный кирпич are convenient masonry, good integrity of the masonry lining, and the refractory raw materials are fully integrated during the firing process. The fired refractory bricks are better able to resist the erosion of slag. Однако, the requirements for boiler refractory bricks are high and the price of refractory bricks is relatively expensive.

From the difference between refractory castables and refractory bricks, in the long run, it is better to choose refractory castables for boiler refractory materials.