Chemical Engineering :: Refractory Technology
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Bottom of basic open hearth furnace are constructed of
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Which form of silica has the highest specific gravity ?
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Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of
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__________ is the measure of the strength of refractory under the combined effect of temperature & load.
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Fireclay bricks are not used in the
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Pick out the wrong statement.
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Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale.
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Addition of grog in fireclay brick during its manufacture is advantageous, because it results in
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Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks.
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Fireclay refractories
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A.
less shrinkage in heating, decreased apparent porosity & increased specific gravity.
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B.
high strength & thermal spalling resistance.
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C.
less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production.
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D.
all (a), (b) and (c).
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