There is a kind of important properties — acid-base properties of many physical and chemical properties of refractory materials we must fully understand.
Acid refractory material determines its using temperature environment, anti slag corrosion ability, 
refractoriness under load, changes in the volume after repeated burning and thermal shock resistance. A comprehensive understanding of the acidity of the refractory material can achieve the best material, be just perfect use.
refractoriness under load, changes in the volume after repeated burning and thermal shock resistance. A comprehensive understanding of the acidity of the refractory material can achieve the best material, be just perfect use.
How acidity refractory material? Acid refractory usually refractory SiO2 content greater than 93%. Basic refractory materials generally refers to the refractory material to Magnesium Oxide or Magnesium Oxide and calcium oxide as the main component. The main characteristics of acid refractories is erosion resistant acid slag at high temperature, but easy to react with alkaline slag. Acid refractory materials are commonly used silica refractory bricks and clay bricks. Silicon refractory brick is siliceous materials silica containing more than 93%, raw materials used in silica, silica refractory bricks, the acid resistance of slag erosion ability, 
high refractoriness under load, the volume does not shrink after repeated burning, or even a slight expansion; but vulnerable to the erosion of basic slag, thermal shock resistance difference. Silicon refractory brick is mainly used for thermal equipment of coke oven, glass kiln, acid furnace etc.. Clay refractory bricks with refractory clay as the main raw material, containing 30% ~ 46% of alumina, is a weak acid refractories, good thermal shock resistance, resistance to acid slag, wide application. Basic refractory refractory degree is higher, the ability to resist the strong alkaline residue. For example, magnesia brick, magnesia chrome brick, magnesite chrome brick, magnesite, dolomite brick, forsterite bricks etc.. Mainly used for basic steelmaking furnace, smelting furnace for non-ferrous metal and cement kiln etc.
high refractoriness under load, the volume does not shrink after repeated burning, or even a slight expansion; but vulnerable to the erosion of basic slag, thermal shock resistance difference. Silicon refractory brick is mainly used for thermal equipment of coke oven, glass kiln, acid furnace etc.. Clay refractory bricks with refractory clay as the main raw material, containing 30% ~ 46% of alumina, is a weak acid refractories, good thermal shock resistance, resistance to acid slag, wide application. Basic refractory refractory degree is higher, the ability to resist the strong alkaline residue. For example, magnesia brick, magnesia chrome brick, magnesite chrome brick, magnesite, dolomite brick, forsterite bricks etc.. Mainly used for basic steelmaking furnace, smelting furnace for non-ferrous metal and cement kiln etc.
没有评论:
发表评论