Monolithic refractories for furnace repair
Monolithic refractories for furnace repair
Monolithic repair material is roughly classified into 4 types. Of these, Krosaki Harima is earnestly promoting technical development related to wet gunning, which is highly rated by our customers.
1.Wet gunning materials
Image of wet gunning
△You can see an enlarged image when you click it
The water content and porosity of insalled body
△You can see an enlarged image when you click it
Advantages of wet gunning
・Possible to install the castables without using a form
・Possible to obtain high density which is equivalent to lower
cement castable
・Possible to install with no dust emission
・Possible to install rapidly
・Possible to install in hot conditions
・Possible to install at height
・Possible to install in any thickness
Major applications
・Blast furnace trough
・Torpedo ladle
・Steel ladle
・Tundish
・Incinerator
2.Dry gunning materials
Advantages of dry gunning
・Possible to install over a wide temperature range from normal up to high temperature
・Possible to obtain high adhesion rates and high adhesion strength using bond-type materials in conjunction with the application
Major applications
・Blast furnace
・Electric arc furnace
・Converter
・RH degasser
・DH degasser
・Steel ladle
・Tundish
3.Ramming materials
As the ramming material for electric arc furnace bottoms, several materials are available, such as MgO, MgO-CaO or MgO-CaO-Fe2O3, and also Al2O3-MgO materials especially for ramming in inductor furnaces.
4.Hot casting materials for converter
Quick hardening type hot casting materials, which are thrown into the converter, are available for repairing the bottom, belly and taphole peripheral portions of the converter.
