Rotary Kiln Bauxite RKB 83/80/75/70

Introduction of Rotary Kiln Bauxite RKB 83/80/75/70

A rotary kiln is a kind of industrial equipment used for material heating and processing, which is widely used in cement, metallurgy, chemical industry, etc. Rotary Kiln Bauxite RKB 83/80/75/70 refers to various parts and components which are necessary for maintaining and repairing the normal operation of the rotary kiln, such as cylinder, baffle wheel, pallet, sealing device and so on.

Features and advantages of Rotary Kiln Bauxite RKB 83/80/75/70

High-temperature resistance: Due to the extremely high temperature of the working environment of the rotary kiln, the spare parts are usually made of refractory materials or special alloys to ensure that they can work stably under high temperatures.

High abrasion resistance: Long time material friction and chemical erosion require spare parts to have excellent abrasion resistance to prolong service life.

High structural strength: in order to withstand heavy loads and the pressure of continuous operation, the design of spare parts will place special emphasis on structural strength and reliability.

Easy to install and maintain: Considering the need for frequent replacement, many spare parts are designed to be simpler and easier for quick installation and maintenance.

Strong adaptability: different industries have different needs for rotary kilns, so spare parts need to have good versatility and adaptability to meet diverse application conditions.

(Rotary Kiln Bauxite RKB 83/80/75/70)

Specifications of Rotary Kiln Bauxite RKB 83/80/75/70

Rotating Kiln Bauxite RKB 83/80/75/ 70 is a high-grade calcined bauxite item created for refractory, rough, and commercial applications. It is generated by calcining raw bauxite in rotary kilns at controlled temperatures, guaranteeing optimum thickness, firmness, and thermal stability. Below are the vital specifications and homes of the RKB collection:

** Alumina (Al ₂ O ₃) Material **: The numerical classification (83/80/75/ 70) suggests the minimal alumina portion in each quality. RKB 83 includes ≥ 83% Al ₂ O ₃, RKB 80 ≥ 80%, RKB 75 ≥ 75%, and RKB 70 ≥ 70%. Greater alumina qualities use superior refractoriness and mechanical stamina.

** Bulk Thickness **: RKB 83 has a bulk density of ≥ 3.15 g/cm ³, RKB 80 ≥ 3.05 g/cm ³, RKB 75 ≥ 2.95 g/cm ³, and RKB 70 ≥ 2.85 g/cm ³. The thick structure makes certain durability in high-temperature environments.

** Refractoriness Under Lots (RUL)**: All grades exhibit excellent thermal stability. RKB 83 and RKB 80 withstand temperatures surpassing 1750 ° C, while RKB 75 and RKB 70 are rated for approximately 1700 ° C and 1650 ° C, respectively.

** Noticeable Porosity **: Reduced porosity (≤ 5% for RKB 83/80, ≤ 6% for RKB 75/70) decreases slag infiltration and boosts corrosion resistance in refractory linings.

** Fragment Size **: Available in common dimensions (0– 1 mm, 1– 3 mm, 3– 5 mm, 5– 8 mm) or tailored circulations to meet application needs.

** Chemical Security **: Reduced iron (Fe ₂ O ₃ ≤ 2.5%) and silica (SiO ₂ ≤ 8%) web content make certain high purity, lowering sensitivity with molten metals or slags.

** Applications **: Suitable for producing refractory blocks, castables, and monolithic linings in steelmaking, cement kilns, and non-ferrous metallurgy. Lower qualities (RKB 70/75) are used in abrasives, proppants, and welding changes.

** Packaging **: Provided in 1-ton jumbo bags or 25– 50 kg woven bags, with moisture-proof choices.

** Conformity **: Satisfies global requirements like ASTM C867 and ISO 9001 for quality uniformity.

Rotary Kiln Bauxite RKB qualities are crafted to deliver high performance in severe thermal and mechanical problems, supplying longevity and cost performance for commercial procedures.

(Rotary Kiln Bauxite RKB 83/80/75/70)

Applications of Rotary Kiln Bauxite RKB 83/80/75/70

Rotating Kiln Bauxite (RKB) 83/80/75/ 70 is a high-quality calcined bauxite item created via regulated thermal therapy in rotating kilns. These grades– 83%, 80%, 75%, and 70% Al2O3 material– are engineered to fulfill varied commercial requirements, using remarkable thermal security, mechanical strength, and chemical resistance. Below are crucial applications of RKB grades across markets:

** Refractory Products **: RKB 83 and RKB 80, with greater alumina material, are ideal for making refractory blocks, castables, and monolithic linings. Their high refractoriness (as much as 1800 ° C) and low porosity make them suitable for lining heating systems, kilns, and burners in steel, concrete, and glass industries. Their thermal shock resistance makes sure resilience in extreme temperature level changes.

** Abrasives Market **: RKB 75 and RKB 70 are extensively used in unpleasant tools like grinding wheels, sandpapers, and blasting media. Their solidity (Mohs range 8-9) and toughness boost reducing performance and life-span. These grades are also used in anti-skid surfaces for roads, runways, and commercial flooring due to their high friction residential properties.

** Building and construction and Ceramics **: Reduced alumina qualities (RKB 70/75) serve as economical basic materials in high-alumina concrete, ceramic proppants for oil exploration, and insulating firebricks. Their well balanced alumina-silica ratio boosts sintering habits and mechanical integrity in ceramic tiles and sanitaryware.

** Shop and Metalcasting **: RKB grades work as molding sands and core additives in shops, giving high warm resistance to develop specific steel molds. Their low thermal growth reduces casting defects in iron, steel, and non-ferrous metal production.

** Environmental Applications **: RKB is utilized in concrete manufacturing as a bauxite restorative agent to change raw dish chemistry. It additionally supports waste incineration systems as a bed product, ensuring efficient burning and decreasing dangerous emissions.

** Roadway Appearing **: RKB 70/75 is an essential part in aggregate blends for high-traffic roads and airport paths. Its angular framework and wear resistance boost skid resistance and sidewalk longevity.

Rotating Kiln Bauxite’s versatility comes from its adjustable alumina web content, making it possible for markets to select grades that optimize performance and expense. Whether for high-temperature refractory solutions or durable building materials, RKB 83/80/75/ 70 supplies integrity, efficiency, and versatility throughout global industrial applications.

Company Introduction

Established in 2001, plant Machinery Equipment Co.,ltd. focus on metal research and mining machinery spare parts. 2 factories over an area of 13,300 square meters, based on 100+ sets of equipment, our production capacity reaches 12000 Tons/Year. has passed ISO 9001 quality managment system certification in 2008.

Our mainly products are dragline excavator spare parts,rotary kiln spare parts, large modulus gear (gear shaft), gearbox ect. 40+ patents with over 45 years experience to help focus on improve the service life of spare parts. We belive that more than 80% reason of mechanical parts’ working life depends on hot processing (steel making/forging/casting/welding/heat treatment). Eight material engineers will control the quality from the original resource.

If you are interested, please feel free to contact us.

5 FAQs of Rotary Kiln Bauxite RKB 83/80/75/70

What is Rotary Kiln Bauxite RKB 83/80/75/70? Rotary Kiln Bauxite (RKB) is a high-grade calcined bauxite produced by heating raw bauxite in a rotary kiln at extreme temperatures (1,500–1,700°C). The numbers 83/80/75/70 denote the alumina (Al₂O₃) content percentages (83%, 80%, etc.), with remaining components being silica, iron oxide, and other trace elements. It is used primarily in refractory applications due to its thermal stability, hardness, and resistance to abrasion and corrosion.

What industries use RKB 83/80/75/70? RKB is widely used in refractory materials for steel, cement, glass, and foundry industries. It forms the base for monolithic refractories, bricks, and castables in furnaces, kilns, and incinerators. Higher alumina grades like RKB 83 are ideal for extreme-heat zones, while lower grades (e.g., RKB 70) suit less demanding applications like insulation layers or secondary linings.

How does the alumina content affect performance? Higher alumina content (e.g., RKB 83) improves refractoriness, load-bearing capacity, and resistance to slag erosion, making it suitable for critical high-temperature zones. Lower grades (e.g., RKB 70) offer cost efficiency for applications with moderate thermal stress. The choice depends on operational temperatures, chemical exposure, and mechanical wear in the specific industrial process.

What are the key advantages of RKB over raw bauxite? Calcination in rotary kilns removes volatile impurities, increases alumina crystallization, and enhances density (≥3.0 g/cm³), resulting in superior thermal shock resistance, mechanical strength, and longevity. Unlike raw bauxite, RKB has low porosity and consistent chemical composition, ensuring reliable performance in harsh environments.

How to select the right RKB grade for my application? Evaluate operational conditions: temperature, abrasion, chemical exposure, and budget. For blast furnaces or steel ladles requiring extreme durability, opt for RKB 83/80. For lower-temperature zones or cost-sensitive projects, RKB 75/70 suffices. Consult technical specifications or a refractory expert to align grade properties with your process requirements.

(Rotary Kiln Bauxite RKB 83/80/75/70)