Refractory for Cement Rotary kiln

The products of LMM Group have been exported to more than 90 countries, countries & areas in America, Europe, Southeast Asia, the Middle East, Africa, Asia, etc, forming strong and core competitiveness in steelmaking, continuous casting, rolling areas to supply high value-added, green, intelligent and one-stop solution and service to global customers in iron, steel, metallurgical industries, etc.

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Refractory for Cement Rotary Kiln

The environments of transition zone, burning zone and cooling zone in cement rotary kiln are severe dueto high temperature from burning clinker and erosion of K,Na,Cl,S. The upsize of rotary kiln and usage inwaste disposal make the condition of using refractories even harsher. Yotai group developed MgO-Cr2O3series, MgO- AlO Spinel series and nonchrome series bricks for cement rotary kiln, which haveachieved remarkable results. We occupy top shares in Japan refractory market, and have expandedgreatly in China market as well.

Unit MgO-Cr2O3 Brick Dirdct-bonded MgO-Cr2O3 Brick
YMGe-10 YMGe-9 YMGe-8 YDMC-12 YDMC-10 YDMC-8
Apparent Porosity % 19.0 19.0 19.0 17.5 17.5 18.0
Bulk Density g/cm3 2.96 2.96 2.95 3.02 3.00 2.98
Cold Crushing Strength MPa 40 40 40 45 45 45
Refractoriness Under Load T2 1580 1580 1580 1700 1700 1680
Thermal Shock Resistance(1100℃-water) Cycles 5 5 5 6 6 6
Chemical Composition MgO % 70 70 72 70 75 77
F.C. 10 9 8 12 10 8

 

MgO- Cr2O3 Brick

A kind of silicate combined basic firebrick fit for dry cement rotary kiln less than 2000t/d in capacity

Unit Dirdct-bonded MgO-Cr2O3 Brick Hercynite-Brick MgO-Al2O3-ZrO2-Brick
YU38 YU36T YU34 YSP-SMT YNC-1
Apparent Porosity % 17.5 18.0 18.0 16.5 17.0
Bulk Density g/cm3 3.03 3.00 3.00 2.96 2.92
Cold Crushing Strength MPa 45 40 40 50 50
Refractoriness Under Load T2 1700 1700 1680 1700 1700
Thermal Shock Resistance(1100℃-water) Cycles 6 6 5 8 10
Chemical Composition MgO % 76 75 75 84 85
Al2O3
Cr2O3 10 10 10
Fe2O3 4
ZrO2 1

 

A kind of bas bickcs made rom purer law mtrils.shased with high pressure and sntedunder high temperature

Unit MgO-Al2O3 Spinel Brick Hercynite-Brick
YSP-NBNY YSP-LP YSP-CTK YSP-GMT
Apparent Porosity % 17.0 17.0 17.0 16.5
Bulk Density g/cm3 2.92 2.92 2.93 2.95
Cold Crushing Strength MPa 5 50 50 55
Refractoriness Under Load T2 1700 1700 1700 1700
Thermal Shock Resistance(1100℃-water) Cycles 10 10 10 10
Chemical Composition MgO % 76 85 80 85
Al2O3  16 10 15 5
Fe2O3 4

 

For environmental conservation,non- chrome bricks including MgO- Al2O3,MgO- Al2O3 Spinel,Hercynite,MgO- ZrO2 were developed and are widly used in transition zone,cooling zone andburning zone to replace MgO- Cr:O brick

As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time

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