There are too many types and models of industrial furnaces, and different industries have different requirements for refractory materials used in furnace construction. What kind of refractory material is good for industrial kiln construction? What is a high-performance lining refractory material? Rongsheng refractory brick manufacturers have summarized the following points based on years of experience in the production, sales, and construction of refractory materials. First of all, it is necessary to clarify the types and uses of industrial kilns. According to the actual working conditions, select the appropriate refractory lining material. Including various refractory bricks, refractory castables, refractory plastics, refractory ramming materials, refractory insulation materials, etc.
The high-performance refractory lining material
The lining of industrial kilns is made of refractory materials, which provides effective protection to ensure the normal operation of the kiln for a long time. So, what is a high-performance refractory lining material?
The furnace lining is selected according to the operating conditions. The refractory bricks used for lining masonry should be selected according to a number of indicators. What factors can determine the quality refractory bricks? These factors also affect the performance of refractory lining materials.
In order to ensure that the lining refractories can better serve various types of kiln equipment, Rongsheng refractory manufacturers have carried out a series of optimized configurations to extend the service life of the kiln. Refractory materials are an important basis for lining structure design, and the quality of lining refractory materials is directly related to whether the entire project can be put into production smoothly. Therefore, it is particularly important to combine the performance of lining refractory materials and related process design. It requires not only a complete process but also a reasonable configuration of refractory materials. Even high-performance refractory linings will inevitably be affected by changes in ambient temperature during use. Such as oven, temperature rise, temperature change during operation, steam purging, start and stop temperature rise and fall, etc. The operation is stable, avoiding damage to the lining caused by rapid cooling and heat, improving the thermal stability of the material, and prolonging the service life of the lining. The gasket is used in a high-temperature environment, so that it expands under high-temperature conditions, thereby being squeezed to generate thermal stress. If the internal stress of the lining exceeds its own strength, peeling damage will occur.
Due to the special and harsh conditions of use, the performance requirements for lining refractory materials are also getting higher and higher. Construction furnace materials mainly include general building materials such as refractory materials, heat-insulating refractory materials, steel, wood, cement, and other auxiliary materials. Grasp the variety, specification and performance of various furnace materials, reasonably select and correctly use various refractory materials. Strengthening the scientific management of refractory materials and reducing material loss are the main prerequisites for ensuring the quality of industrial furnace masonry projects and improving the service life of furnaces. General principles for selecting refractory materials for furnace construction: (1) Refractory materials must have technical properties that can meet the requirements of industrial furnaces, and their performance indicators should comply with current standards or design requirements. (2) The selected refractory materials must have good construction performance and meet the construction technical requirements and engineering quality requirements. (3) The refractory materials used must comply with laws, regulations, and technical specifications related to labor protection and environmental protection.
The quality of refractory materials determines the service life of kiln lining and the quality of bricks. How to judge?
Judging the quality of refractory bricks by seeing the color and black spots. From material selection, batching, molding, drying, firing, cooling, and other processes, the personnel involved in the production process are highly mobile. Even with operating specifications in place, the color of refractory bricks can vary during a fully automated production process. The firing temperatures of various refractory bricks are different, and it is impossible for the entire kiln to fire the same product. The requirements of production equipment are often mixed with other indicators of refractory bricks, which leads to some refractory bricks being under-fired or the firing temperature being too high. When reaching a certain temperature during high-temperature use, the color will return to normal. All refractory bricks have a certain degree of high-temperature expansion or contraction, and products fired at too high a temperature eliminate this problem and ensure the airtightness of the block during use. In this way, it can be seen that the difference in the color of different refractory bricks negates the quality of the refractory bricks.
A single indicator judges the quality of refractory bricks. Refractory bricks are a kind of inorganic non-metallic materials with a refractory temperature not lower than 1580°C, which are mixed according to a certain scientific ratio. Its comprehensive index factors have been strictly screened in many aspects, the process is complex, high-temperature firing or mixed, and the factors that determine the index change are stable physical and chemical changes. Different types of refractory bricks, such as clay bricks, high alumina bricks, mullite bricks, lightweight insulation bricks, etc., each manufacturer has its own physical and chemical index specifications. This single indicator should be the main material content, refractory temperature, etc., and the quality of refractory bricks cannot be denied because a certain indicator does not meet the requirements of the indicator. The comprehensive performance of the product should be considered under the condition of meeting the production environment. The weight of refractory bricks judges the quality of refractory bricks. All refractory bricks have standard sizes, have a bulk density, and can calculate their unit weight.
In the fierce competition in the market, the buyer of refractory bricks directly purchases refractory brick products from the manufacturer, which is guaranteed in terms of product quality, corporate reputation, and after-sales service. Rongsheng refractory brick manufacturer is a powerful refractory brick production and sales enterprise. If you need to purchase high-quality and high-performance refractory lining materials, please contact us. You will not be disappointed.
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