Unshaped refractories

      Unshaped refractories for hot blast stove include dense castable, ramming mixes, light weight castable and coatings. Characterized by good airflow erosion resistance and chemical attack resistance, prefabricated ceramic burners made of GS-H castable have been widely applied in more than ten iron and steel enterprises with good results. The dome of hot blast stove is rammed by SiC fillings, featured by good compactness, high thermal conductivity and thermal capacity. Characterized by high strength, low thermal conductivity and good thermal shock resistance, CH castable is suitable for branch blowpipes and linings of hot blast valves.

产品规格

 Properties specification of unshaped refractories for hot blast stove

 

 Type

 

SR-H

 

SR-SiC

 

SR-CH

Chemical analysis(%) ≥ 

 

Al2O3

 

70

75 (SiC)

 

92

 

Chemical analysis

(g/cm3) ≥

110℃×24h

2.60

2.30

2.90

1450℃×3h

2.50

2.80

 

Modulus of rupture Mpa≥

 

110℃×24h

 

3

 

2

 

6

1450℃×3h

 

5

2 (1000℃)

 

8

 

Compressive strength Mpa ≥

110℃×24h

30

2

40

1450℃×3h

40

3 (1000℃)

60

 

Application

Ceramic burner

 

Filling mix

Branch pipe

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