Overview of Magnesia-alumina Spinel Brick for Cement Rotary Kiln

Magnesia-alumina Spinel Brick for Cement Rotary Kiln is manufactured from 99%+ pure aluminum oxide (Al₂O₃), delivering exceptional mechanical strength and thermal stability. These advanced ceramic parts maintain dimensional stability in extreme environments up to 1800°C, making them perfect for demanding applications in semiconductor equipment, aerospace components, chemical processing, and high-temperature industrial machinery.

Features of Magnesia-alumina Spinel Brick for Cement Rotary Kiln

Ultra-High Temperature Resistance – Withstands continuous operation up to 1800°C

Exceptional Mechanical Strength – Superior hardness and wear resistance compared to metals

Corrosion & Chemical Proof – Resists acids, alkalis, and harsh industrial chemicals

Electrical Insulation – Excellent dielectric properties for electronic applications

Customizable Designs – Available in complex geometries with tight tolerances (±0.01mm)

(Magnesia-alumina Spinel Brick for Cement Rotary Kiln)

Specification of Magnesia-alumina Spinel Brick for Cement Rotary Kiln

Magnesia-alumina spinel bricks are essential for concrete rotary kilns. They hold up against severe warm and severe problems. These bricks are made mostly from magnesia and alumina basic materials. High pureness magnesia is important. Calcined alumina is additionally key. These materials get blended with each other. After that they are pressed into block forms. The blocks are terminated at really heats. This firing process develops the spinel mineral stage. Spinel formation is important. It gives the bricks their unique residential or commercial properties.

The primary make-up is magnesia (MgO). It is normally 70% to 90%. Alumina (Al2O3) comprises most of the rest. A small amount of other oxides might be existing. These blocks have very high refractoriness. They withstand melting also above 1750 ° C. This is essential for the burning area. Excellent thermal shock resistance is another major benefit. Concrete kilns experience constant temperature level changes. These bricks manage that stress and anxiety well. They withstand cracking from unexpected home heating or cooling.

High strength is one more function. They maintain architectural stability under lots. This is essential in the kiln cellular lining. Great quantity stability is critical too. The blocks don’t shrink or increase excessively throughout use. This prevents gaps creating in the lining. Superb resistance to chemical strike matters substantially. Concrete clinker fluid stage and kiln gases are really corrosive. Spinel bricks provide strong defense against this deterioration. They last longer than fundamental magnesia blocks.

Reduced thermal conductivity is a valuable residential or commercial property. It aids conserve heat inside the kiln. This improves power effectiveness. Great layer adherence is likewise valuable. A steady coating layer kinds on the brick surface area. This coating safeguards the blocks even more. Using magnesia-alumina spinel blocks expands rotating kiln project life. It reduces expensive downtime for repairs. These blocks are the preferred option for the transition and burning areas. They manage the hardest conditions dependably.

(Magnesia-alumina Spinel Brick for Cement Rotary Kiln)

Applications of Magnesia-alumina Spinel Brick for Cement Rotary Kiln

Magnesia-alumina spinel bricks are unique refractory bricks created challenging spots in cement rotating kilns. They incorporate magnesia and alumina to create a spinel mineral structure. This structure gives them exceptional buildings for the extreme kiln environment. Heats inside the kiln are no worry for these blocks. They handle extreme warmth extremely well.

Thermal shock resistance is another crucial stamina. Concrete kilns warm up and cool usually. Unexpected temperature level adjustments can split weak materials. Spinel bricks withstand this fracturing far better than older standard bricks. They stay solid through lots of home heating cycles. This indicates longer service life for the kiln cellular lining.

Chemical strike is a significant problem in concrete production. Alkalis and sulfur compounds inside the kiln assault refractories strongly. Spinel bricks are highly resistant to this chemical disintegration. The spinel framework stops alkalis and sulfur from permeating deeply. This safeguards the brick structure over time. Much less wear methods less constant repair work.

These blocks perform best in the shift area and burning zone of the rotary kiln. These areas see the highest temperature levels and the most extreme chemical conditions. Older magnesia-chrome blocks functioned right here also. Nonetheless, chrome can develop harmful hexavalent chromium under kiln conditions. Spinel bricks supply a risk-free, chrome-free option. They prevent this environmental and health issue completely.

Making use of spinel bricks improves kiln procedure. Their security reduces unexpected closures for lining repair services. Operators get more consistent production runs. The kiln runs longer in between major maintenance quits. This conserves considerable money and time. Cement plants see real expense benefits from this dependability. The first investment pays off with decreased downtime and reduced substitute costs.

Company Profile

Alumina Technology Co., Ltd,. We focus on the research and development, production and sales of alumina products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2005, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Alumina Boat, Alumina Crucible, Alumina Dish, Alumina Foam Filter, Alumina Plate, Alumina Rod, Alumina Bar, Alumina Balls, Filter Alumina, Nano Alumina Powder, Spherical Alumina Powder, ect. please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

T/T, Western Union, Paypal, Credit Card etc.

Shipment Methods

By air, by sea, by express, as customers request.

5 FAQs of Magnesia-alumina Spinel Brick for Cement Rotary Kiln

What makes magnesia-alumina spinel bricks good for cement kilns?
These bricks handle high heat very well. They resist chemical attacks too. Cement kilns have harsh conditions. The spinel phase inside the brick gives it strength. This strength fights wear from clinker and gases. It also helps the brick resist cracking when temperatures change fast. This is crucial near the burning zone.

How long do these bricks typically last?
Their lifespan is usually longer than basic magnesia bricks. Good quality spinel bricks last 8-12 months often. Sometimes they last even longer. The exact time depends on kiln operation. Stable kiln conditions help them last longer. The spinel formation protects the magnesia grains. This protection reduces erosion significantly.

Can they handle the hottest kiln areas?
Yes, they are designed for the burning zone. This zone has the highest temperatures. Magnesia-alumina spinel bricks withstand temperatures over 1700°C. Their high refractoriness is key. The spinel bond stays strong under extreme heat. This makes them a top choice for the toughest spots.

Is installing them difficult?
Installation follows standard bricklaying practices. It’s similar to other refractory bricks. Proper installation is vital. Gaps must be minimal. Mortar must be applied correctly. Careful drying and heating up are essential steps. Skipping these steps can damage the bricks. Trained crews should do the work.

Do they need special care during operation?
Good kiln operation is the best care. Avoid rapid temperature changes. These changes stress the bricks. Keep the kiln coating stable. The coating protects the bricks. Watch for unusual hot spots. Consistent operation extends brick life. Regular inspections help spot problems early.

(Magnesia-alumina Spinel Brick for Cement Rotary Kiln)