Specifically Engineered for Cement Kiln Burning Zones.
● Chrome-Free, Eco-Friendly Composition.
● Outstanding Thermal Shock Stability.
● Promotes...
Magnesia Spinel Brick
Magnesia spinel brick is a mainstream chromium-free basic refractory material. It uses high-purity sintered magnesia as the aggregate, together with industrial alumina and synthetic magnesia spinel fine powder as raw materials. After high-pressure forming, the bricks are fired at temperatures ranging from 1500°C to 1800°C (the exact temperature depends on the raw material types and brick dimensions). Its matrix is composed of two crystalline phases: periclase (MgO) and magnesia-alumina spinel (MgAl₂O₄). It serves as an eco-friendly substitute for traditional magnesia-chrome bricks.
Types of ZINFON Magnesia Spinel Bricks
The principal crystalline phase is magnesia alumina spinel (MgAl₂O₄). It offers a well-balanced combination of thermal shock resistance and alkali attack resistance, making it a widely used option for cement kilns worldwide.
Standard Physical and Chemical Indexes of ZINFON Products
The principal crystalline phase is magnesia iron spinel (MgFe₂O₄). It provides excellent coating adherence performance and is specifically designed for the burning zone of cement kilns.
Standard Physical and Chemical Indexes of ZINFON Products
-
![Magnesia Iron Spinel Brick]()
-
![Magnesia Alumina Spinel Brick]()
Magnesia Alumina Spinel BrickMagnesia alumina spinel brick is a basic refractory material. Its main crystalline phases are periclase and magnesia alumina spinel. It is widely used in cement rotary kilns.read more
●... -
![High-purity Magnesia Alumina Spinel Brick]()
High-purity Magnesia Alumina Spinel BrickGood thermal shock stability and alkali resistance, ideal for cement rotary kiln lining.read more -
![Fused Rebonded Magnesia Spinel Brick]()
Fused Rebonded Magnesia Spinel BrickOutstanding thermal shock and alkali resistanceread more
specially for cement rotary kiln burning zone and transition zone -
![Magnesia Spinel Brick For Lime Kiln]()
Magnesia Spinel Brick For Lime KilnRefractory bricks for the burning zone of active lime rotary kilns. Featuring high hot strength, good thermal shock stability and alkali resistance for lime calcination.read more -
![Synthetic MgO–Cr₂O₃ Brick]()
Synthetic MgO–Cr₂O₃ BrickSintered MgO‑chromite spinel brick Sintered MgO‑chromite spinel brick is a basic refractory product made of high-purity magnesia clinker and synthetic magnesia-chromite spinel as main raw...read more -
![Sintered MgO–spinel Brick]()
-
![Synthetic Al₂O₃–spinel Brick]()
Synthetic Al₂O₃–spinel BrickSynthetic alumina-magnesia spinel brick is an alumina-based refractory product manufactured with synthetic alumina-magnesia spinel and high-alumina raw materials as main raw materials, by...read more -
![Synthetic MgO–spinel Brick]()
Synthetic MgO–spinel BrickSynthetic magnesia-alumina spinel brick is a basic refractory product made of synthetic magnesia-alumina spinel and high-purity magnesia clinker as main raw materials, through high-pressure...read more
Quality Control Process for ZINFON Magnesia Spinel Brick Production
All inspections during ZINFON spinel brick production:
1.Raw material incoming inspection: chemical composition test (XRF), particle size, moisture,
with supplier certificates attached.
2.Mixing process test: mixture moisture and homogeneity check.3.Pressing QC: forming pressure record, green brick size, weight and surface defect inspection.
4.Sintering process control: kiln temperature curve record, semi-finished brick appearance and
bulk density test after firing.
5.Dimensional & asymmetry test: measure each brick’s size and flatness, stack 10 bricks to record
stacking deviation data.
6.Finished product physical & chemical test: cold crushing strength, bulk density, thermal shock
resistance, load softening temperature and full chemical re-analysis.
ZINFON Magnesia Spinel Brick Dimensions
ZINFON supplies both standard-size and standard-shaped refractory bricks. The standard dimensions are 230 × 114 × 65 mm. Custom-shaped and non-standard bricks can also be manufactured according to customer drawings and specifications.
In addition, we provide a full range of shaped refractory bricks commonly used in cement rotary kilns and various high-temperature industrial furnaces. Available models include 216, 316, B320, B620, BP+20, BP+22, A216, and others.
Applications of ZINFON Magnesia Spinel Bricks
Magnesia Alumina Spinel Bricks
|
Industry |
Applications |
|
Cement Industry |
Transition zone of cement rotary kilns |
|
Iron & Steel Metallurgy |
Ladle walls, ladle bottoms, secondary refining furnaces such as RH and VOD units, permanent linings of electric arc furnaces (EAFs), and converter linings |
|
Glass Industry |
Glass melting furnaces and checker bricks in glass furnace regenerators |
|
Non-Ferrous Metallurgy |
Linings of copper smelting furnaces, lead-zinc smelting rotary kilns, and other non-ferrous metal smelting equipment |
|
Other High-Temperature Furnaces |
Active lime rotary kilns, lime calcining kilns, and various industrial high-temperature tunnel kilns |
Key Features and Suitable Conditions:
Chromium-free and environmentally friendly
Excellent thermal shock resistance
Strong resistance to alkali slag penetration
Particularly suitable for kilns and furnaces subject to significant temperature fluctuations and frequent start-up and shutdown cycles
Primary Application:
Specifically designed for the burning zone of cement rotary kilns
Key Features and Suitable Conditions:
The brick contains iron-bearing components, which enhance its resistance to pulverization under reducing atmospheres and provide significantly better kiln coating adherence than magnesia-alumina spinel bricks. It promotes the formation and retention of a stable kiln coating that protects the brick body, greatly reducing abrasion and erosion caused by clinker scouring.
How To Cooperate With Us?
7*24 hours online response
Provide professional after-sales protection
Our address
Qinghua Management Dist., Dashiqiao City, Yingkou City, Liaoning, China
Phone Number
+8613700131695
info@zinfon-refractory.com
As one of the most professional magnesia spinel brick manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to buy bulk customized magnesia spinel brick from our factory. Contact us for sample.
Refractory for Zinc oxide rotary kiln, mgo product, Dry process Cement Rotary Kiln