Excellent Resistance in Slag Abrasion Dolomite Brick for Electric Arch Furnace

Dolomite bricks are made from qualified magnesite and dolomite as the raw materials that are processed through secondary-burning (calcinations, fine grinding, briquetting, dead burned). The MGO/CaO ratio is taken as the kind of Mag-dolomite brick or unshaped monolithics in accordance with customers requirement. Pitch or paraffin impregnation pressed by vacuum is needed after burned under high temperature. Dolomite brick have the features of high temperature performance and resistance to slag.

Dolomite Brick Characteristics:

1.Good thermal shock resistance.
2.Excellent resistance in slag abrasion.
3.Good cold crush strength.
4.High heat resistant with good refractoriness.
5.Good low creep and better flaking resistant.

Dolomite Brick Application:

Dolomite brick is widely used in alkaline converter. The fired magnesia dolomite brick is used as the lining of some off-furnace refiners. When dolomite brick is used as lining, the life of the furnace can be significantly improved by spraying white marble.

Dolomite Brick Technical Data Sheet:
 

Item		Unit	Dolomite Brick
Brand			FMB-40
Chemical Composition	MgO	%	≥30
	CaO	%	≥40
Bulk Density		g/cm3	≥2.9
Apparent Porosity		%	≤20
Cold Crushing Strength		MPa	≥100
Refractoriness		℃	1700~1800
Refractoriness Under Load		℃	1550~1610
Thermal Conductivity		KJ/m.h.℃	≤7.524