Refractory bricks come in a wide variety, encompassing different materials and models, specifically designed for use in various high-temperature kilns and hot zones. Among them, insulation bricks, a type of refractory brick, play a crucial role in kilns and low-temperature equipment. Despite belonging to the same refractory brick family, insulation bricks and refractory bricks have distinct focuses in terms of functionality and application. This article will elaborate on the performance differences and functional characteristics of both:
Insulation bricks primarily serve the purpose of thermal insulation, effectively slowing down heat loss, and they generally do not directly bear the impact of flames.
On the other hand, refractory bricks directly face the flames, primarily used to resist the scorching effects of high temperatures.
As essential refractory and insulating materials in high-temperature environments, both refractory bricks and insulation bricks are widely used in kilns and low-temperature equipment. Although they belong to the same category, their functions and uses are明显 different. Here is a professional analysis of their performance and differences:
Insulation bricks secondary function is to reduce heat loss through insulation, while refractory bricks mainly bear the direct impact of flames.
In terms of thermal conductivity, insulation bricks have a coefficient of 0.2-0.4 w/m.k, significantly lower than the 1.0 w/m.k of refractory bricks.
In high-temperature kilns and equipment, insulation bricks and refractory bricks perform their respective roles, providing essential thermal insulation and refractory functions. Here is a detailed comparison of their differences:
Insulation bricks have a lower thermal conductivity, ranging from 0.2 to 0.4 w/m.k, while refractory bricks are above 1.0 w/m.k.
In terms of refractoriness, insulation bricks can withstand temperatures below 1400°C, whereas refractory bricks can handle temperatures above 1400°C.
Refractory bricks and insulation bricks have distinct characteristics in industrial applications, with insulation bricks known for their lightweight and excellent insulation properties, while refractory bricks are famous for their high strength and resistance to high temperatures. Here are the specific parameter comparisons between the two:
Insulation bricks have a density of 0.8-1.0 g/cm3, making them lightweight and insulating.
Refractory bricks have a density exceeding 2.0 g/cm3, offering high mechanical strength and a long service life.
Refractory bricks are the ideal choice for high-temperature environments in industries such as fertilizer plants and steel production, thanks to their superior high-temperature resistance, mechanical strength, and chemical stability. Here is a professional overview of their application characteristics:
Refractory bricks can withstand temperatures up to 1900°C and have good chemical stability, not reacting with materials.
In fertilizer plants, they play a role in dispersing gases and liquids, supporting, and maintaining catalysts in high and low-temperature shift converters and reformers.
In the steel industry, they are essential in hot blast furnaces and heat conversion equipment, contributing to the industry's efficiency and productivity.
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