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Refractory For Rotary Kiln

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refractory linings in rotary kiln

Refractory lining is needed in the rotary kiln to protect the kiln shell from damage or catastrophic failure resulting in a series of chemical or physical reactions. When the rotary kiln is working, high temperatures, the rotating of the cylinder, the heavy loads, and the abrasion and corrosion may destroy the kiln shell. Refractories such as refractory brick and castables are used as the lining materials of kiln shells because of the high resistance to high temperature, and chemical or mechanical corrosion, and the insulation layer can reduce heat loss.

In the cement industry, the downtime of the rotary kiln highly depends on the change and repair of the refractory linings. The service life of the refractory lining directly affects the safe operating and long life circle of rotary kilns. The qualified rotary kiln refractory lining and well-fitted installation are essential to prolong the service life of a rotary kiln. AGRM provides tailor-made solutions for rotary kilns to protect the kiln shell and extend the service life of the rotary kiln.

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Advantages of AGRM rotary kiln refractory lining

The high-quality refractories and the right installation from AGRM can better protect the kiln shell to prevent deformation from high-temperature flame and calcined material. The refractory lining also can reduce heat loss in the rotary kiln. It can transfer the heat received in the cylinder to the material again, playing the role of heat storage and heat transfer.

Good chemical stability

The refractory brick lining has good chemical stability to resist the corrosion from the substances in the cylinder.

Strong resistance to wear

The kiln lining can resist wearing from the material in the kiln slides and the dust friction in the airflow generated from raw materials calcination.

Good resistance to high temperature

The kiln lining maintains the required strength while resisting the high temperatures resulting from the calcinating of raw materials.

Good thermal shock stability

The good thermal shock stability can prevent the kiln shell from cracking or peeling when it is hot or cold.

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Rotary kiln refractory lining materials

Lining materials in a rotary kiln mainly include refractory bricks, castables, and other kinds of insulating materials. Because the rotary kiln is mostly used for calcining limestone and other materials, acidic refractory materials are not used as the lining of the rotary kiln, and neutral or alkaline refractory materials are usually used to assist in production, to achieve greater production benefits of the rotary kiln. They are applied in specific locations to meet the demands of the working conditions of the rotary kiln.

rotary kiln in operation
rotary kiln brick lining construction
castable construction in rotary kiln
spinel brick for roatry kiln
refractory brick for rotary kiln lining
special shape rotary kiln brick

Tailor-made solutions for Industrial kiln lining!

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Rotary kiln brick lining

Refractory brick is lined as the working layer which directly contacts with the material inside the rotary kiln. Their properties such as high density, high-temperature resistance, and corrosion resistance build a barrier between the harsh environment and the kiln shell.

In a rotary kiln, different types of refractory bricks are lined due to the varied working conditions in different sections. This is because of the large difference in axial temperature of the inner wall of the rotary kiln, and the different stresses of each stage of the rotary kiln. The rotary kiln is divided into working zones such as the drying zone, the preheating zone, the decomposition zone, the calcination zone, and the cooling zone.

rotary kiln refractory lining zone
fire clay bricks for sale

Fire clay brick

Clay brick has good thermal stability. It can withstand more rapid cooling and rapid heat changes. It can be used for pre-heat and calcination zones of lime rotary kiln.

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lightweight high alumina insulating brick supplier

High alumina brick

The Al2O3 content of high aluminum brick is higher than that of clay brick, and the refractoriness and high-temperature mechanical strength are better than that of clay brick, which is mostly used in the firing zone of lime rotary kiln.

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magnesia alumina spinel brick supplier

Magnesia alumina spinel brick

Magnesia alumina spinel brick is a magnesia brick with magnesia alumina spinel as the main mineral, which is produced by adding alumina to the mixture to improve the thermal shock stability of magnesia brick. It has the advantages of heat shock resistance, high thermal shock resistance structural spalling resistance, high strength, corrosion resistance, etc. It is commonly used in the calcination zone of a rotary kiln or the part of the cylinder that is easy to deform.

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rotary kiln castable materials

Rotary Kiln Castables

Castables are often used as the insulation layer due to their high strength, and high resistance to high temperatures. The insulation layer is needed in some rotary kilns to prevent the high-temperature heat from penetrating the brick layer to destroy the kiln shell. Compared to kiln bricks, castables have the advantages of better insulation, easy installation, quick repair, and minimum downtime to rotary kilns.

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No. 1109, Building A, World Trade Center, Southern of Zhonghua Road, Wenfeng District, Anyang City, Henan Province, China


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AGRM strives to serve the top grade refractories, furnaces and kilns, related equipment, and the most cost-effective turnkey solutions for masonry, heat protection, heating up, etc. Contact us immediately!
Phone Number: 0086 16668392162
Address: No. 1109, Building A, World Trade Center, Southern of Zhonghua Road, Wenfeng District, Anyang City, Henan Province, China

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