Mullite Bricks

Mullite Brick is a refractory material characterized by excellent performance (especially high temperature creep performance), is made from pure mullite and also alumina powder is added according to different types, finally sintered at high temperature. The features of our mullite bricks are with high mechanical intensity; high refractoriness, contact with flame directly; high porosity, low volume density, low thermal conductivity; low creep rare at high temperature, good thermal shock stability; chemical corrosion resistance and long service life.

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 -

With the breakthrough of the suspension preheating and pre-decomposition technology in the cement industry and the increasing size of the equipment, the heat load of the kiln is significantly increased, the rotation speed is accelerated, the alkali corrosion is severe, and the lining life and equipment operation cycle are shortened, thus the requirements for refractory materials. More demanding. Its performance advantages are mainly manifested in: 1. High refractoriness under load and excellent high temperature resistance; 2. High strength, abrasion resistance, and easy to peel off and erosion; 3. Low thermal conductivity and good heat insulation effect; 4. Strong flexibility and heat resistance Excellent seismic performance; 5, moderate density, reduce the cylinder load.

Mullite lightweight brick It was made of mullite and other fine raw refractory materials with advanced techniques. It is a kind of new popular energy-saving material widely used in metallurgy, ceramics, glass and chemical industry, glass and chemical industry as high temperature liner, such as in pyrolyzers, chemical industry furnace, metallurgy industry furnace, heating furnace, electric resistance furnace, roller kiln, tunnel kiln and shuttle kiln.

Description Mullite insulation bricks are high alumina refractories mainly made from good quality and pure raw materials.In generally, alumina accounts 65%-75%. Besides mullite,there are also glass phase and christobalite as well as corundum which are good grade fillings. Mullite insulation bricks are widely used for lining in high temperature kilns such as shuttle kiln,roller kiln,glass kiln and petroleum kilns. Specifications 1.Low thermal conductivity, good heat insulation. 2.Low thermal melting point. Lightweight mullite insulating bricks save heat and energy. 3.Low impurity content,high temperature resistance; higher alumina content ensures good performance. 4.Customized shapes to reduce bricks quantity and cost. 5.Dense,compact and accurate structure,low porosity rate. 6.High loading temperature,corrosion resistance. Application Due to its lightweight and good insulating performance,our mullite insulation bricks has broad use for fire resistance lining in heat side and insulating layers, thus increases energy efficiency greatly. Mullite lightweight bricks are popular in hot blast kiln crown,flame side and bottom parts; glass melting furnace regenerator,ceramic sintering kiln,Petroleum cracking system corners and linings,ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns, 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

Descriptions: Mullite bricks have the properties of high purity, good mechanical strength, high refractoriness under load and low thermal conductivity. Mullite bricks are the best suited for reducing atmospheres and have resistance to slag and alkali attack. It has superior resistance to abrasion and thermal shocks. The effect on energy saving is significant. Applications: It is the ideal to be used as both insulating linings and working linings of high temperature kilns like glass tank furnace, kiln furnitures for firing ferrites, high alumina ceramics, carbon black reactor, cement kiln, burner blocks.

It is produced by foam coagulation technique. Features: 1. It has advantages with small bulk density, high cold crushing strength, and high refractoriness under load, small dimension tolerance and good thermal shock resistance. 2. It has the lowest and most stable thermal conductivity in various insulating refractory bricks. 3. It can reduce the total weight of furnace body and the thickness of furnace wall effectively, improve heat efficiency, lower energy consumption, improve work conditions and production efficiency, and considerable economic benefit can be obtained. Application: It is not only widely used in insulating layers of various of thermal processing equipments, such as hot blast furnace, coke oven, glass kiln, etc, but also apply to linings in parts of furnace without strong high-temperature molten material erosive. Item High Alumina Insulating LG-1.0 LG-0.9 LG-0.8 LG-0.7 LG-0.6 LG-0.5 LG-0.4 Al2O3 % 48 Fe2O3 % 2.0 Bulk Density g/cm3 1.0 0.9 0.8 0.7 0.6 0.5 0.4 Cold Crushing Strength Mpa 3.92 3.43 2.94 2.45 1.96 1.47 0.78 Thermal Conductivity Coefficient w/m.k 0.45 0.45 0.35 0.35 0.3 0.25 0.20 Test Temperature of Permanent Linear Change Rate 2% C 1400 1400 1400 1350 1350 1250 1250

1.Description Fire clay refractory brick is made from flint clay clinker and binder, through high temperature sintering. Al2o3 content is 30%-48%, sio2 content is 50%-65%, and a small number of alkali metals, alkaline earth metal oxides, etc. Mineral composition is usually mullite, quartz and glass phase. Its refractoriness is 1580-1750¡ãc, refractoriness under load is 1250-1450 ¡ãc, line expansion coefficients is low, with good thermal shock resistance and strong ability to resist erosion acid slag. 2.Feature 1. High refractoriness, high-temperature endurable; 2. Good thermal shock resistance; 3.Good volume stability at high temperature; 4. Good corrosion resistance; 5. Good spalling resistance and wear resistance; 6. High mechanical strength; 7. High-temperature creep rate is low; 3.Applications Fire clay refractory brick is widely used in blast furnaces, hot blast stove, ladle lining, reheating furnace, cement kiln, tunnel kiln, boiler, coke oven, waste incinerators , carbon furnace, glass kiln , steel smelting furnace and various kiln lining and thermal technology equipment etc. On wooden pallets with plastic cover Pallet size:1.05*1.05m