High Alumina for Blast Furnaces

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Al2O3,%              不小于min




Fe2O3,%              不大于max




耐火度,℃            不低于
Refractoriness        min




荷重软化开始温度,℃  不低于min




重烧线变化,%         1500℃x2h
P.L.C                 1450℃x2h

0— -0.2

0— -0.2

0— -0.2

显气孔率,%           不大于
A.P                   max




常温耐压强度,        MPa不小于
CCS                   min  




Properties of products:High alumina bricks for furnaces were mainly made Yangquan Bauxite,being high pressure pressed and sintered in high temperature.Main minerals compositions are mullite and corundum phases.These products were widely used in all parts of furnace lining of their excellent physical/chemical properties in high temperature.

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Q:What are the differences between diatomite brick and ordinary refractory bricks?
The volume density of diatomite brick is 3.9 * 10-6, good compressive strength, belongs to the small outer insulation, spinel brick.
Q:Is there any special requirements for the building blocks of the smoke and gas wells, how about the refractory bricks?
There are no special requirements. Not necessarily need refractory bricks, red bricks are ok. The building size of the flue is according to the smoke exhaust rate.
Q:T38 size of high alumina refractory brick
Q:several refractory brick of rotary kiln several is damaged, how many refractory bricks should be replaced?
The life of refractory bricks in rotary kiln is generally short.
Q:What is the size of mechanism brick and general refractory brick?
The ordinary refractory brick is 230mm long, 53mm thick; red brick is 240mm long, 115mm wide, 65mm thick,
Q:what kind of refractory brick is suitable for 1300 degrees converter?
The furnace cap tapping shaft part should use MgO-C brick with high slag resistance and thermal shock resistance, the steel side can be slightly thin, bottom carbon content may be appropriate less.
Q:cement concrete What kind of cement should be used to manufacture high temperature resistant Kang cement?
Sulphate aluminium cement is the best choice.
Q:How to built refractory bricks as fitting between square and circle ducts
Build a big mushroom, and build the legs as square
Q:why the color of refractory brick is white after high temperature firing when the meteorite is black after the burning?
There are different reasons. Meteorolites can mainly be divided into three types, iron meteorites (iron nickel alloy): Stone meteorites (the main component is silicate), and stony iron meteorites(the mixture of iron and silicate)
Q:is it good to use firebricks to preserve the heat of rto furnace? Is there any other good ideas?
1. what variety and grade of refractory materials should be chosen to build all parts of the industrial furnace?; 2. is the origin of these materials be assured? mesothern resistance furnace, lightweight refractory brick, refractory fiber, bead brick of 1000 degrees; fuel heating furnace, refractory clay brick, high alumina brick, silica brick, carborundum brick, refractory castable, the plastic refractory of 1300 degrees; heat treatment furnace, refractory clay brick, refractory fiber of 1100 degrees; high temperature salt bath furnace, refractory clay brick, high alumina brick, zircon brick, refractory castable of 1300 degrees; high temperature resistance furnace, lightweight refractory brick, high aluminum bricks, lightweight alumina brick, lightweight refractory clay brick of 1400 degrees; molybdenum wire furnace, alumina brick, corundum brick, carborundum brick, finished alumina hollow ball product of 1650 degrees; cupola, refractory clay brick, carborundum brick, dolomite Brick, carbon brick, graphite brick of 1650 degrees; arc furnac, high alumina brick, silica brick, magnesia brick, magnesia brick, magnesia chrome... Corundum brick, carbon brick, magnesia chrome brick, magnesia brick, high aluminum brick, silica brick, finished alumina hollow ball product of 1700 degrees; cupola, refractory clay brick of 1650 degrees;

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