2023-12-14 15:35:01
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In the petrochemical industry, lightweight refractory castables with a volume density of 0.5-1.0g/cm3 are used for tubular heating furnaces, which are constructed by manual coating or spraying methods. The service life is about 5 years.
The use of refractory material spray coating for lining has also achieved good results. Especially, wear-resistant and fire-resistant castables have been applied in platinum reforming equipment, which can eliminate the heat-resistant steel turtle shell mesh system and improve its service life.
Various conversion furnace linings are used at temperatures ranging from 600 to 1500 ℃. Generally, aluminate cement refractory castables, low cement refractory castables, and corundum castables are used, with a service life of 3 to 6 years;
In the non-ferrous metallurgical industry, thermal equipment such as sealed blast furnaces, flash furnaces, electrolytic tanks, and rolling heating furnaces for lead and zinc use amorphous refractory lining materials locally.
Recently, impermeable and refractory castables have been widely used in aluminum electrolysis cells, achieving satisfactory results; The use of amorphous refractory materials in the lining of steam boilers was the earliest and most common. Generally, aluminate cement heavy or lightweight refractory castables are used, with a service life of about 10 years.
The high alumina, corundum, and SiC refractory castables and refractory plastics used in fluidized bed power generation boilers have high strength and good wear resistance, meeting the design and usage requirements. In addition, amorphous refractory materials are also used in industries such as machinery, fire resistance, and waste incineration, and have achieved good results.