Refractory precast are a kind of functional material developed on the basis of traditional amorphous refractory materials. They are made in the factory through pouring, curing, baking and other processes, and then directly transported to the site for installation. Combining the shape diversity characteristics of amorphous products and the superior performance characteristics of shaped products, it is more flexible to use. Compared with other refractory materials, it has many significant advantages, which are mainly reflected in the following aspects:
Not restricted by the shape of equipment: Refractory precast parts can be made into various blocks according to the shape of the equipment to meet the use requirements of various kiln-specific special-shaped parts. It inherits the advantages of amorphous refractory materials and can achieve special shapes.
Stable quality: During the production process of precastd components in the factory, the raw materials, proportions and process conditions are strictly controlled, so the product quality is stable and reliable. This strict production control ensures the high performance and long life of precast parts in use.
Longer service life: Since the production process has been carried out in the production enterprise, it overcomes the disadvantages of tight construction time and rough management on site. After sufficient curing and strict baking, the performance of refractory materials can be fully exerted. Therefore, the service life of refractory precast parts is usually longer than that of refractory materials cast on site.
Not limited by ambient temperature: The construction of castables is limited by ambient temperature, while precast parts have no requirements for the environment and can be constructed in any season, with a wider range of uses.
Easy to replace and disassemble: In actual production, if the precast block is damaged, the damaged unit can be directly replaced in a very short time, reducing production interruptions caused by maintenance.
Modular design: Refractory precast parts adopt modular design, simple assembly and excellent construction conditions.
Good integrity and sealing: The connection between precast parts is tight, which not only prevents leakage, but also has expansion joints, better integrity and sealing.
Save construction time: The use of refractory precast parts can significantly shorten the construction period and improve construction efficiency. The precast parts have completed the pouring, curing, drying and baking of the precast parts in advance at the supplier’s side when they are delivered. Only installation and assembly are required on site, and there is no need for on-site pouring, support and disassembly of molds and construction machinery, which greatly reduces the on-site construction time.
Reduce on-site labor: Precast components are produced in factories, which can reduce the workload of on-site construction personnel and material handling, and reduce labor intensity.
Refractory precast components have been widely used in various industrial furnaces and equipment in the petrochemical, metallurgical, building materials, electric power and other industries due to their flexibility in shape and design, superior quality and service life, convenience of construction, strong environmental adaptability, convenience of maintenance and replacement, and modular design.