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Application of nano heat insulation board in steel industry
Application of nano heat insulation board in steel industry
Nano - thermal insulation panels are widely used in steel industry. this paper lists several common applications for your reference:
Application of 1 nanometer heat insulation board in ladle
The use method comprises the following steps: cleaning the inner wall of the ladle, coating a high-temperature adhesive on the ladle wall, pasting nano microporous heat insulation felt, and sequentially laying a permanent layer and a working layer. Use effect:
1 ) reduce that heat loss of the ladle shell.
2 ) reduce that tapping temperature of the convert
3 ) reduce that heat required by ladle bake
4 ) reduce that temperature of the ladle shell and increasing the service life and safety of the ladle
5 ) replace too thick insulating brick, increase the volume of molten steel
6 ) reduce that temperature difference between the hot and cold surfaces of the refractory brick and prolonging the service life of the refractory brick
Case 130 tons ladle
Refractory structure: ( from outside to inside )
( 1 ) 7 mm nano microporous thermal insulation felt
( 2 ) 60 % high alumina brick 63 mm
( 3 ) castable 25 mm
( 4 ) magnesia carbon brick 150 mm
Effect: that temperature of the clad shell is reduced by 80 - 100 deg c; The acidification attachment is obviously reduced; The ladle doe not need to be bake again in that continuous casting period; The service life of ladle peripheral equipment is prolonged; The capacity of molten steel is increased.
Application of 2 nm heat insulation board on tundish
The application method comprises the following steps of: laying a layer of nano microporous heat insulation board on the inner side of the tundish wall, avoiding claw nails on the tundish wall, and then installing casting materials.
The application effect is that the heat loss in the continuous casting process is reduced, the temperature change of molten steel is reduced, and the continuous casting quality is improved.
3 torpedo application
The application method comprises the following steps of: tiling a layer of nano microporous heat insulation board on the inner side of a torpedo cladding wall, and then installing refractory bricks.
The application effect is that the heat loss in the process of transporting the molten iron is reduced, the temperature of the molten iron when the molten iron reaches the converter is improved ( about 40 deg c reduction ), the energy consumption of the converter is reduced, and conditions are created for dephosphorization treatment in the process of transporting the torpedo ladle.
Application of 4 step heating furnace water cooling column
The application method comprises the following steps of: wrapping two layers of nano microporous heat insulation boards on a water cooling pipe, fixing the nano microporous heat insulation boards by thin iron wires, and then installing castables.
Use effect: the heat removed by the cooling water is reduced by about 24 % compared with the ceramic fiber insulation layer.
Application of 1 nanometer heat insulation board in ladle
The use method comprises the following steps: cleaning the inner wall of the ladle, coating a high-temperature adhesive on the ladle wall, pasting nano microporous heat insulation felt, and sequentially laying a permanent layer and a working layer. Use effect:
1 ) reduce that heat loss of the ladle shell.
2 ) reduce that tapping temperature of the convert
3 ) reduce that heat required by ladle bake
4 ) reduce that temperature of the ladle shell and increasing the service life and safety of the ladle
5 ) replace too thick insulating brick, increase the volume of molten steel
6 ) reduce that temperature difference between the hot and cold surfaces of the refractory brick and prolonging the service life of the refractory brick
Case 130 tons ladle
Refractory structure: ( from outside to inside )
( 1 ) 7 mm nano microporous thermal insulation felt
( 2 ) 60 % high alumina brick 63 mm
( 3 ) castable 25 mm
( 4 ) magnesia carbon brick 150 mm
Effect: that temperature of the clad shell is reduced by 80 - 100 deg c; The acidification attachment is obviously reduced; The ladle doe not need to be bake again in that continuous casting period; The service life of ladle peripheral equipment is prolonged; The capacity of molten steel is increased.
Application of 2 nm heat insulation board on tundish
The application method comprises the following steps of: laying a layer of nano microporous heat insulation board on the inner side of the tundish wall, avoiding claw nails on the tundish wall, and then installing casting materials.
The application effect is that the heat loss in the continuous casting process is reduced, the temperature change of molten steel is reduced, and the continuous casting quality is improved.
3 torpedo application
The application method comprises the following steps of: tiling a layer of nano microporous heat insulation board on the inner side of a torpedo cladding wall, and then installing refractory bricks.
The application effect is that the heat loss in the process of transporting the molten iron is reduced, the temperature of the molten iron when the molten iron reaches the converter is improved ( about 40 deg c reduction ), the energy consumption of the converter is reduced, and conditions are created for dephosphorization treatment in the process of transporting the torpedo ladle.
Application of 4 step heating furnace water cooling column
The application method comprises the following steps of: wrapping two layers of nano microporous heat insulation boards on a water cooling pipe, fixing the nano microporous heat insulation boards by thin iron wires, and then installing castables.
Use effect: the heat removed by the cooling water is reduced by about 24 % compared with the ceramic fiber insulation layer.
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