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Since 1995, based on exploitation of kaolin in the Ukraine , and thanks to the launch of mining activities through the joint venture SP Keramnedra, research and development of ecological refractory materials began (bricks and gunning mixes). Gradually the company developed and started to produce various standards of magnesia – forsterite – spinel bricks of KML brand (KM=Kerametal + L=Lovinit) - joint production using Kerametal's know-how and the production plant Lovinit Lovinobana, thanks to their progress advantages suitable for various sectors of industry, such as the steel industry, non-ferrous metals industry and cement industry.

• Fired bricks for steel and non-ferrous industry (KML – 15F , KML – 15FT, KML – 25F , KML – 25FT)
• Carbon bricks for steel industry (KML – 10FU, KML – 12FU, KML – 15FU)
• Fired bricks for cement industry (KML – 20FC, KML – 25FC)
• Gunning mix KML GUNLIT 60

Characteristics

• KML products are highly–fired or non–fired, magnesia – forsterite – spinel, magnesia – carbon bricks with high refractoriness, high density and high abrasion resistance, and elevated thermal shock resistance
• bricks are brand new developed and are ecological, chrome – free lining material
• bricks provide satisfactory operational conditions of the kiln/ furnace
• bricks provide greater efficiency of the production process (require lower consumption of refractory materials)
• higher performance and longer service life of lining
• lower weight of lining

• lower thermal conductivity
• the existence of Si and Al in brick react like an antioxidant agent and increase refractoriness
• the reaction towards burn-out of carbon in magnesia-carbon brick by adding of Fosper is more effective than adding the antioxidant agent

• mineral forsterite in bricks increases refractoriness
• lower thermal conductivity
• higher abrasion resistance and elevated thermal shock resistance
• lower unit weight of the bricks (protects specific parts of rotary kiln against wear)
• the bricks are dense with no occurrence of tide pores

Based on positive references from various producers that have tested KML bricks to date, we can emphasize that the bricks, thanks to the aforementioned properties (chrome free), can wholly replace commonly used basic bricks magnesia – chrome and basic magnesia – carbon bricks and magnesia spinel bricks.

References

Metallurgical works, former VSZ Kosice, now U.S.STEEL s.r.o., application: ladle; used brand KML 25 F , KML 10 FU
Copper smelter, former Kovohuty Krompachy a.s, now Montanwerke Brixlegg, application: converter; used brand KML 25 F and gunning mix KML GUNLIT 60
Cement plant HOLCIM (Slovensko) a.s. Rohoznik, application: rotary kiln; used brand KML 20 FC
Metallurgical works ŽDAS, a.s. (CZ), application: ladle; used brand KML 10 FU
Trinecke steel works (CZ), application: ladle; used brand KML 10 FU
Metallurgical combine TAGANROG ( Russia ), application: ladle; used brand KML 25 F
Cement plant NOVOROSCEMENT Russia, application: rotary kiln; used brand KML 20 FC

The KML products are produced according to standard ISO 9001: 2000

Refractory Magnesia - Forsterite - Spinel Bricks KML

Typical chemical and physical values

Production variant: FT - bricks with TiO₂

Refractory Magnesia - Forsterite Spinel carbon Bricks KML

Typical chemical and physical values

Production variant: FU - magnesia-forsterite-spinel carbon bricks
*) - Residual Carbon max.%

Refractory Magnesia - Forsterite - Spinel bricks KML

Typical chemical and physical values

Production variant: FC - bricks for rotary cement kiln

Refractory Magnesia – Forsterite – Spinel Gunning Mix KML Gunlit 60

Typical chemical and physical values

Quality description and application: Gunning mix used for hot repairs of converters (min.temperatur of application 800°C). Wet gunning application.