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Xiaoyi City Jingang Refractory Materials Co., Ltd. was established in 2019. It is a provincial-level specialized, refined, distinctive, and innovative enterprise, a national high-tech enterprise, an innovative small and medium-sized enterprise, and a municipal technology center.

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Product Description

Commodity name: Alumina in a rotary kiln

The rotary kiln is installed at an incline and rotates continuously, making it widely used for the high‑temperature calcination of bauxite. It offers advantages such as low energy consumption, simple operation, minimal environmental pollution, high operational availability, and strong fuel flexibility.

Rotary Kiln Bauxite · Technical Manual

Rotary kiln Bauxite

Kiln type Tilt-rotary continuous type

Functional zoning Drying · Preheating · Calcination · Cooling

Fuel adaptability Coal gas · Coal powder · Fuel oil

Energy-saving advantages Reduces coal consumption by 40% compared to a reverse-flame kiln.

Structure and Composition of the Kiln Body

Component

Function Description

Feed section

Raw material enters, and the material is continuously fed into the kiln.

Dust collection chamber

Collect particulate matter from flue gas to reduce emissions.

Kiln body

Placed at an incline and continuously rotated, it completes the entire process of drying, preheating, and calcination.

Kiln head trolley

Support and Sealing Structure at the Kiln Head End

Hot smoke chamber

Collects high-temperature flue gas and distributes heat to each functional section.

Cooler

Rapid cooling of high-temperature finished products and recovery of waste heat.

Functional Zoning Process

Dry belt →

Preheating zone →

Calcination zone →

Cooling zone

Core Advantages of Rotary Kilns

Low energy consumption, high product quality

It can reduce unit coal consumption by 40% compared with conventional down-draft kilns, delivers high‑quality products with excellent stability, and enjoys a strong price‑competitive edge in the market.

Simple operation, minimal manual intervention.

The operation is simple and reliable, requires minimal manual intervention, and ensures a stable process.

Low environmental pollution and high operational efficiency.

Low environmental impact, minimal maintenance requirements, and high equipment availability.

Strong fuel adaptability

It is applicable to a variety of fuels, including coal gas, pulverized coal, and fuel oil.

Supports automated upgrades

After upgrading to an automated control system, the system has become more refined and stable.

Main applications of bauxite

One

Aluminum smelting industry

Used in national defense, aerospace, automotive, electrical appliances, chemical industries, and everyday consumer goods, among others.

Two

Precision casting

Bauxite clinker is ground into a fine powder, formed into casting molds, and then used in precision casting for applications in the defense, aerospace, telecommunications, instrumentation, machinery, and medical device industries.

Three

Refractory products

High-alumina bauxite clinker exhibits a refractoriness as high as 1780°C, with excellent chemical stability and favorable physical properties.

Four

Aluminum silicate refractory fiber

It boasts advantages such as light weight, high-temperature resistance, excellent thermal stability, low thermal conductivity, small heat capacity, and resistance to mechanical vibration.

Five

Ladle monolithic casting

Using magnesia and calcined bauxite as raw materials, with an appropriate binder added, this material delivers excellent performance when used to cast the monolithic lining of steel ladles.

Six

Cement, Abrasives, and Chemicals

It is used in the production of aluminous cement, abrasive materials, and various aluminum compounds in the ceramics and chemical industries.