Petrochemical cracking furnaces are core equipment in the petrochemical industry, subjected to high temperatures and chemical corrosion for extended periods. Under these extreme conditions, refractory fire bricks, as crucial lining materials, play a vital role in protecting the furnace structure and maintaining thermal efficiency.
1. Harsh operating conditions of cracking furnaces
The internal temperature of cracking furnaces typically exceeds 1200℃. Simultaneously, frequent temperature fluctuations and chemical corrosion occur during operation. Therefore, refractory bricks must possess excellent high-temperature strength, thermal shock resistance, and chemical corrosion resistance.
refractory brick
Furthermore, due to the long operating cycle of cracking furnaces, the service life of refractory bricks is a key consideration. High-quality refractory bricks not only extend the furnace lining life but also effectively reduce heat loss and improve overall energy efficiency.
Meanwhile, good volumetric stability prevents furnace deformation caused by thermal expansion.
2. The role of fire bricks in key parts of cracking furnaces
(1) Furnace chamber
High-alumina or corundum refractory bricks are typically used in the furnace chamber. These bricks have high density and outstanding high-temperature resistance.
(2) Furnace top
The furnace top area has a complex structure and bears significant thermal stress. Therefore, a composite structure of lightweight and heavyweight refractory bricks is often used in this area to ensure strength while reducing weight.
(3) Furnace lining sidewalls
Special refractory bricks resistant to acid and alkali corrosion are often used here.
It should be noted that the price of refractory bricks varies greatly depending on the material and manufacturing process. Therefore, a balance between performance and cost must be considered when selecting refractory bricks, meeting process requirements while controlling the procurement budget.
3. Considerations for refractory brick supplier selection
Choosing a suitable refractory brick manufacturer or supplier not only affects the price of refractory bricks but also the stability of product quality and technical service support.
Various Refractory Bricks
Professional suppliers can usually provide complete selection advice and a quality assurance system. At the same time, attention should be paid to the supplier’s production qualifications, technical strength, and after-sales service capabilities during the procurement process to ensure the long-term stable operation of the pyrolysis furnace. In addition, long-term cooperative refractory brick suppliers can provide regular technical support and inventory guarantees.
Henan Ruitai Lianxin Refractory Materials Co., Ltd. has 20 years of experience in refractory material production. They not only provide customers with high-quality refractory bricks that meet quality standards, but also offer solutions tailored to specific kiln operating conditions.
Please feel free to contact us if you have any needs. Choosing Ruitai Lianxin means choosing strength.
