With new dry firing technology as the core, it realizes cement production automation and high efficiency and environmental protection, including a pre-decomposition system outside the kiln, rotary kiln system, and cooling system.
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セメント産業
Refractories for the new dry-process cement rotary kiln:
![](https://www.rsnewrefractory.com/wp-content/uploads/2023/05/Cement-Industry.webp)
Pre-Heater
High-strength alkali-resistant castable crust-resistant castable
Alkali-resistant bricks
Decomposing Furnace
High alumina low cement refractory CastableAnti-strip high alumina bricks
Tertiary Duct
Special castable for tertiary air duct
Silicon mullite bricks
High-strength alkali-resistant bricks
Rotary Kiln
Special castable for kilneyetabular
Corundum castable
Steel fiber reinforced refractory castable
Silicon mullite bricks
High-Wear resistant bricks
Magnesium iron spinel bricks
Direct bonded magnesia chrome bricks
Anti-strip high alumina bricks
Kiln Hood
Anti-strip high alumina bricks
Mullite low cement castable
Grate Cooler
Anti-strip high alumina bricks
Mullite low cement castable
Refractory bricks for the cement industry
There are many kinds of refractory bricks used in the cement industry: Direct-Bonded Magnesite chrome Bricks, Magnesite chrome bricks, Magnesia spinel bricks, Anti-strip alumina bricks, Silicon mullite bricks, Series alkali proof brick.
Direct-bond magnesite chrome bricks
Direct-bond magnesite chrome brick is a product made from fused magnesite and chrome concentrate sintered from high purity or secondary purity. It is sintered under high temperature and ultra temperature with fewer foreign materials, where the glass phase is centered in the triangular space, and the crystalline phase bonds directly with the crystalline phase. Featured by low porosity, 高い圧縮強度, 強い耐摩耗性, good erosion resistance, and thermal shock resistance capacities as well as anti-strip properties, it applies to the calcining zone of dry-process cement rotary kiln.
アイテム | DMC-4 | DMC-6 | DMC-9a | DMC-9b | DMC-12 |
MgO% ≥ | 80 | 75 | 70 | 70 | 60 |
Cr2○3 % ≥ | 4 | 6 | 9 | 9 | 12 |
SiO2 % ≤ | 2.5 | 2.8 | 2.8 | 3.0 | 3.2 |
Apparent Porosity % ≤ | 18 | 18 | 18 | 19 | 19 |
MPa CCS ≥ | 40 | 40 | 40 | 40 | 35 |
0.2MPa Refractoriness Under Load ℃ ≥ | 1600 | 1600 | 1600 | 1580 | 1580 |
耐熱衝撃性, Cycle (1100℃, water quenching) ≥ | 4 | 5 | 5 | 5 | 5 |
Magnesite chrome Brick
Magnesite chrome brick is a product sintered under a temperature above 1600℃ till as is the main material, and its host crystal phase is periclase and magnesia-chrome spinal. solidifying procedures or be packed with sheet steel externally. Featured by good thermal shock resistance, 耐食性, and anti-strip properties, it applies to the calcining zone of dry-process cement rotary kin.
アイテム | Magnesia-chrome brick | |||
MGe-8 | MGe-12 | MGe-16 | MGe-20 | |
MgO % ≥ | 60 | 55 | 45 | 40 |
Cr2○3,% ≥ | 8 | 12 | 16 | 20 |
見かけの気孔率 % ≤ | 21 | 21 | 21 | 21 |
CCS ,MPa以上 | 30 | 30 | 30 | 30 |
0.2MPa Refractoriness Under Load ℃≥ | 1530 | 1550 | 1550 | 1550 |
Magnesia Spinel Brick
アイテム | MLJ-70 | MLJ-75 | MLJ-80 |
MgO % ≥ | 70 | 75 | 75 |
アル2○3 % | 8-13 | 8-13 | 8-13 |
鉄2○3 % ≤ | 1.5 | 1.5 | 1.5 |
CaO % ≤ | 2.0 | 2.0 | 1.5 |
SiO2 % ≤ | 3.0 | 2.0 | 1.5 |
Apparent Porosity %≤ | 19 | 18 | 17 |
かさ密度 g/cm3 ≥ | 2.95 | 2.95 | 3.00 |
MPa CCS ≥ | 45 | 45 | 50 |
0.2MPa Refractoriness Under Load ℃ ≥ | 1600 | 1650 | 1650 |
耐熱衝撃性, Cycle (1100℃, water quenching) | 8 | 10 | 10 |
Anti-striping alumina brick and silicon mullite brick
The anti-striping alumina brick produced by our company is produced with special bauxite chamotte by adding aragonite or ZrO2 and molding under high pressure according to a certain proportion. Featured by strong anti-strip capacity, calcium, sodium, sulfur dioxide, chlorine and basic salt resistance, and low thermal conductivity, it is an ideal material for the transition zone and decomposing zone of cement kiln.
The silicon mullite brick produced by our company is produced with special bauxite chamotte by molding under high pressure and sintering under high temperatures. Featured by high ambient compressive strength and high structural strength. With good thermal shock resistance and wear resistance as well as strong anti-strip, it is an ideal material for the transition zone and decomposing zone of cement kin. cement kiln.
アイテム | Anti-strip High Alumina Brick | シリコンムライトレンガ | |
RSBR-70 | AZM-1650 | AZM-1680 | |
アル2○3 % ≥ | 70 | 63 | 60 |
ZrO2% | 6-8 | — | — |
耐熱衝撃性, Cycle (1100℃, water quenching) ≥ | 1790 | 1790 | 1790 |
かさ密度, グラム/センチメートル3 ≥ | 2.5 | 2.55 | 2.60 |
見かけの気孔率,% | 24 | 20 | 21 |
CCS MPa ≥ | 60 | 65 | 70 |
0.2MPa Refractoriness Under Load ℃ ≥ | 1700 | 1650 | 1680 |
CC CWT ≤ | – | 6 | 5 |
耐熱衝撃性, Cycle (1100℃, water quenching) ≥ | 30 | 20 | 25 |
MPa MOR ≥ | – | 12 | 15 |
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