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gunning mix°°for blast furnace °Ęhot-air furnace and duct°°

item 

index

CN £≠ 140G

CN £≠ 130G

CN £≠ 120

CL £≠ 120G

acidproof gunning mix

refractoriness °ś°°°°°°°°°›

1610

1540

1540

£≠

1540

volume density g/cm 3

°›1.8

°›1.7

°›1.7

°‹ 1.4

°›2.0

chemical component

£•

Al 2 O 3 >

45

35

30

35

50

Fe 2 O 3 <

1.8

2.0

2.0

2.0

1.6

CaO <

£≠

£≠

£≠

£≠

0.5

linear change after burning£•

£≠ 0.20 °ę£ę 0.30

£≠ 0.20 °ę£≠ 0.4

£≠ 0.15 °ę£≠ 0.70

£≠ 0.33 °ę£≠ 0.92

£≠ 0.40

folding strenth

MPa

110 °śdrying°›

4.0

4.0

4.0

2.0

1.5

900 °ś °›

0.30

0.30

0.30

0.30

£≠

thermal coefficient   W/m°§k

£≠

£≠

£≠

°‹0.30£®350°ś£©

£≠

service temperature °ś

1400

1300

1200

1300

1300

part used 

top cone, gas up,  downtake liner, flue gas pipeline 

hot-air furnace mantle, gunned layer  


blast furnace warm-air pipe, hot blast main and pipe branch

blast furnace warm-air pipe 

hot blast main and pipe branch

hot-air furnace ball

gunned layer in top shell 

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