The service temperature of refractory brick

Jun 21,2017
Refractory brick is a kind of shaped refractory material, with high strength, simple construction, wide use, easy to use and other characteristics, suitable for a variety of industrial furnace masonry, its use and use of different temperatures.
1. Physical and chemical indicators of ordinary refractory clay brick, the size of the allowable deviation and shape products cross-section, should meet the specifications.
Ordinary refractory clay brick for the general furnace refractory masonry. Lining materials, furnace wall, bottom, flue and other operating temperature below 1250 ℃. Combustion chamber parts, allowing the use of more than 1400 ℃.
2. Physical and chemical indicators of high alumina bricks, product dimensions, allowable deviation, etc., should meet the specifications. High aluminum bricks are used in general furnace high temperature, wear resistant areas or larger load masonry, burner bricks and special requirements of the masonry. The high temperature zone of the combustion chamber of the dome, allowing the use of temperature 1300 ~ 1650 ℃.
3. Lightweight clay brick physical and chemical indicators, product size to allow deviation and shape products cross-section requirements, should meet the specifications. Lightweight refractory clay brick, as not from the high temperature slag and erosive gas erosion of the furnace lining, depending on the capacity, the use of temperature between 1150 ~ 1400 ℃.
4. Refractory brick manufacturers of high-quality aluminum brick physical and chemical indicators, dimensions allowable deviation should meet the specifications. For working temperature less than 1350 ℃ heat-resistant lining can also be used for high temperature melt erosion and erosion of the masonry, can be directly in contact with the flame.
5. General corundum brick suitable for working pressure 3MPa below the heavy oil gasifier to the fire surface lining, salt waste incineration furnace lining an important part of the work in the high temperature of the radial burner brick. General corundum brick use temperature in the 1600 ~ 1670 ℃ below.
6. Low silicon fused corundum for strong reducing atmosphere, hydrogen high pressure, high temperature water vapor in the presence of occasions. Such as large-scale synthetic ammonia plant, a section of the converter gas trap and two-stage conversion furnace lining, high temperature lining. Low silicon fused corundum brick physical and chemical indicators, size tolerances should meet the specifications. Low silicon fused corundum use temperature below 1600 ℃ ~ 1670 ℃ below.
7. Light aluminum oxide products (such as light corundum brick) for high-temperature furnace heat-resistant, heat-resistant lining, high temperature, high pressure water vapor erosion of the lining, the general role in the non-fire surface lining. Such as mullite light brick This kind of alumina products JM130 series use temperature below 1400 ℃.
8. Silicon carbide refractory bricks have good thermal conductivity, good thermal stability, resistance to reducing atmosphere, and high strength, often as a heat-resistant, wear-resistant lining, and the need for good thermal stability, thermal conductivity and anti-reduction Sexual atmosphere of the occasion. The use temperature of silicon carbide refractory products is below 1400 ~ 1600 ℃.