Разница между рефрактерными лицами котла и рефрактерными кирпичами

What kind of refractory material should be used in boilers? Should we choose boiler refractory castables or refractory bricks? What is the difference between refractory castables and refractory bricks for boilers?

Boiler introduction

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

Огнеупорный литейный материал is a kind of amorphous refractory material, which is a granular material formed by mixing refractory raw materials such as refractory aggregate and refractory powder, adding binder admixtures, и т. д., and then pouring into the installed mold after kneading. It is put into use after curing, baking, demoulding, and other processes. Refractory castable can produce suitable casting materials according to the application part of the boiler. By selecting high-quality refractory raw materials, refractory castables of various materials can be processed, такой как high-aluminum castable, mullite castable, corundum refractory castable, и т. д.. 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 according to the requirements of the application part to cast the lining.

Boiler refractory bricks

Refractory bricks are the main refractory materials used in industrial kilns. 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 the long-term scouring and erosion of materials and airflow placed in the boiler.

Advantages of boiler refractory castables and refractory bricks

The advantages of boiler refractory castables are short production cycle, easy construction, and can be cast according to the construction site and construction requirements. Однако, the construction process is more important, and the quality of construction is closely related to the long-term use of the lining cast by the boiler refractory castables.
The advantages of boiler refractory bricks 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.