Corundum brick and chrome corundum brick is the petrochemical industry gas furnace and the furnace key refractory lining material. Corundum brick is α-Al2O3 as the main component of the special refractory material, has been widely used in high temperature, high pressure, chemical erosion and mechanical wear serious ammonia gasification furnace, ethylene engineering gas furnace, carbon black reactor and other important petrochemical heat The lining of the device. Chromium corundum brick is pure Al2O3 and Cr2O3 as the main raw material synthesis, compared with pure corundum brick, it has better performance, such as refractoriness, load softening deformation temperature, bending strength, high temperature creep, high temperature volumetric stability And resistance to slag corrosion.
Corundum brick and chrome corundum brick is the petrochemical industry gas furnace and the furnace key refractory lining material. Corundum brick is α-Al2O3 as the main component of the special refractory material, has been widely used in high temperature, high pressure, chemical erosion and mechanical wear serious ammonia gasification furnace, ethylene engineering gas furnace, carbon black reactor and other important petrochemical heat The lining of the device. Chromium corundum brick is pure Al2O3 and Cr2O3 as the main raw material synthesis, compared with pure corundum brick, it has better performance, such as refractoriness, load softening deformation temperature, bending strength, high temperature creep, high temperature volumetric stability And resistance to slag corrosion.
Different kinds of industrial furnace.Such as:Hood furnace, heating furnace, cracking furnace, heat treatment furnace, shuttle kiln, tunnel kiln, roller kiln, enamel kiln, ceramic kiln ceiling and wall and insulation lining materials. Item Index Al2O3 75 85 SiO2 22 12 CCS Mpa 90 100 MOR Mpa 16 16 RUL 1500 1550 Thermal shock resistant 900 (times) 20 30 CC 6 5 HR W/m.k (
Checker bricks is strong is widely recognized and accepted by the world community an iron heat exchange capacity, large thermal storage area, ventilation smooth, heat regenerator many small thermal resistance and other superior characteristics. Checker bricks is a heat transfer medium, used in blast furnace stove heat storage room, usually ordered in thermal storage room, play a role in regenerative between "burning furnace cycle" in between "blast period" is Through the convective heat exchange and radiation heat exchange, the cold air heated to hot air. The checker bricks are mainly used in the regenerator of the hot blast stove, and the checker bricks are arranged in an orderly manner. According to the technical requirements of different temperature areas, the general use of silicon lattice brick, clay brick, etc., in some hot air stove, there are also selected high alumina brick, mullite brick etc.
Corundum mullite poly light brick is a new type of energy efficient refractory material, can directly contact the flame, with high temperature, high thermal shock stability, high strength, small thermal conductivity and other characteristics. Widely used in ceramic roller kiln, shuttle kiln, cracking furnace, hot stove and a variety of electric furnace lining, door bricks, kiln tiles and so on. Characteristics 1.Low thermal conductivity, with a good thermal insulation effect 2.Low hot melt, due to low thermal conductivity, mullite series of light insulation brick accumulated little heat, in the intermittent operation of energy-saving effect is obvious 3.High purity,high refractoriness,and the high alumina content make it maintain good performance in a reducing atmosphere. 4.High thermal compressive strength 5. Extend the life of the lining 6.Could make in special shape to reduce the application amount of bricks. Al2O3 62 62 KO2+NaO20.10.08 Fe2O30.50.5 Bulk Density g/cm3 0.9 1.0 Cold Compressive Strength mpa 4.5 5.5 Refractoriness Under Load 1#1500 1500 Reheating liner change 15002h,0.1Mpa -1.5 -1 Refractorinessb 1700 1750
Corundum brick (sintered corundum brick) with dense alumina clinker as raw material made of corundum brick. The brick has a high melting point, stable performance at high temperatures, room temperature and high temperature mechanical strength and wear resistance is good. Anti-metal erosion and anti-oxidation, superior performance. z
Silica mullite brick is a special high-alumina bauxite and silicon carbide as raw materials, made by a special sintering process, with a strong high wear resistance, thermal shock stability characteristics, in the course of the formation of protective layer, and other characteristics. Mainly used for cement rotary kiln transition zone, decomposition zone. Feature: High refractoriness under load Highâ temperature resistance Lowâ thermal conductivity Good insulatingâ property High flexibility Proper bulk density -
Copper Smelting furnace use High Alumina Corundum Fire Brick have stable quality and excellent durability.Copper Smelting furnace use High Alumina Corundum Fire Brick are made mainly of calcined alumina, mullite, corundum of high purity.Copper Smelting furnace use High Alumina Corundum Fire Brick have low porosity, excellent hot strength and creep resistance, and good volume stability at high temperature, Copper Smelting furnace use High Alumina Corundum Fire Brick have been developed to meet the most demanding specifications for various industrial applications. Brand Properties HT-98 HT-95 HT-90 HT-85 Chemical Composition (%) Al2O3% 98.5 95 90 85 SiO2% 0.3 3.0 9.0 13 Fe2O3% 0.2 0.2 0.5 0.5 Apparent Porosity (%) 18 18 18 20 Bulk Density (g/cm3) 3.1 2.95 2.9 2.75 Cold Crushing Strength (MPa) 90 80 80 70 Refractoriness Under Load (�ºC) 1700 1650 1650 1700 Permanent Linear Change (%) 0.1 0.2 0.2 0.3 Main Applications Carbon reactor furnace Pertrochemical furnace Industry ceramic kiln Refractory tunnel kiln Various high-temp Furnace Copper Smelting furnace use High Alumina Corundum Fire Brick 1.High refractoriness, 2.High-temperature endurable. 3.Good corrosion resistance. 4.Good spalling resistance and wear resistance. 5.Good thermal shock resistance. 6.High mechanical strength. 7.High-temperature creep rate is low. 8.Good volume stability at high temperature.
Silica bricks are the main species of silica-based refractories, where the mass fraction of sio2 is not less than 93%. Silica brick is a typical acid refractory bricks, the acid slag has a good resistance to al2o3, feo, fe2o3 and other oxides also has good resistance, but the resistance to alkaline slag is poor, easy to cao, k2o, na2o and other oxides and damage. Silicone brick softening temperature as high as l640-1680 â??, long-term use at high temperatures more stable. But the thermal resistance of silicon brick is poor, refractoriness is not high enough.
Fire clay bricks are the most widely used refractories made from clay minerals. It can be easily located out in the nature and contains suitable content ratio of silica, cyanite and alumina. Some people call them fireplace bricks as they are usedor building cooking chamber in wood fired ovens, for creating fireplaces, all sorts of fire boxes and wood heaters lining, linings in a small or the hugest industrial furnaces, you name it. Fire clay bricks have low porosity and are durable for various re-heating process.
