Alumina Rotary Kiln - Professional Calcination Equipment for Alumina Production
The alumina rotary kiln is a core calcination equipment specially designed for the alumina production process, mainly used for high-temperature calcination of alumina raw materials (such as bauxite) to convert them into qualified calcined alumina, which is widely applied in aluminum smelting, refractory materials, ceramics, electronic materials and other industries. As a key equipment in the alumina production line, it directly determines the quality, output and production efficiency of alumina products.
Our alumina rotary kiln is developed and manufactured based on years of industrial experience and advanced technology, adhering to the concepts of energy saving, environmental protection, stability and efficiency. It is perfectly matched with preheater, cooler, ball mill, vibrating feeder and other auxiliary equipment to form a complete automatic alumina production line, providing one-stop solutions for global alumina manufacturers.
Core Technical Advantages
1. High Calcination Efficiency: Adopting advanced combustion system and thermal insulation structure, the thermal efficiency is as high as 85% or more, which effectively reduces fuel consumption and shortens the calcination cycle. The uniform temperature distribution in the kiln ensures stable quality of calcined alumina, with uniform particle size and high purity.
2. Energy Saving & Environmental Protection: Equipped with intelligent temperature control and waste heat recovery system, it can fully utilize waste heat to reduce energy consumption by 15%-20% compared with traditional rotary kilns. The sealed kiln body design minimizes dust leakage and exhaust gas emissions, complying with international environmental protection standards (such as EU CE certification and Russian environmental standards).
3. Stable Operation & Long Service Life: The kiln body is made of high-quality high-temperature resistant steel and refractory materials, which can withstand long-term operation under high temperature (1200-1400℃) and high load. The optimized transmission system and supporting wheel structure ensure smooth operation, low failure rate and easy maintenance, with a service life of more than 15 years.
4. Customizable Design: According to the customer's raw material characteristics, production capacity (from 50t/d to 1000t/d) and site conditions, we provide customized specifications and configurations. The kiln diameter ranges from 2.5m to 5.0m, and the length can be flexibly adjusted to meet different production needs.
Technical Parameters (Customizable)
| Product specifications(m) | Kiln dimensions | Capacity(t/d) | Rotation speed(r/min) | Motor power(kw) | Total weight(t) | Note |
| Diameter(m) | Length(m) | Obliquity(%) |
| Φ2.5×40 | 2.5 | 40 | 3.5 | 180 | 0.44-2.44 | 55 | 149.61 | Kiln with shaft cyclone preheater |
| Φ2.5×50 | 2.5 | 50 | 3 | 200 | 0.62-1.86 | 55 | 187.37 | ---- |
| Φ2.5×54 | 2.5 | 54 | 3.5 | 204 | 0.48-1.45 | 55 | 196.29 | ---- |
| Φ2.7×42 | 2.7 | 42 | 3.5 | 320 | 0.10-1.52 | 55 | 198.5 | ---- |
| Φ2.8×44 | 2.8 | 44 | 3.5 | 400 | 0.437-2.18 | 55 | 201.58 | Outside disassemble kiln |
| Φ3.0×45 | 3 | 45 | 3.5 | 500 | 0.5-2.47 | 75 | 210.94 | ---- |
| Φ3.0×48 | 3 | 48 | 3.5 | 700 | 0.6-3.48 | 100 | 237 | Outside disassemble kiln |
| Φ3.0×60 | 3 | 60 | 3.5 | 300 | 0.3-2 | 100 | 310 | Alumyte-alumina forge kiln |
| Φ3.2×50 | 3.2 | 50 | 4 | 1000 | 0.6-3 | 125 | 278 | Outside disassemble kiln |
| Φ3.3×52 | 3.3 | 52 | 3.5 | 1300 | 0.266-2.66 | 125 | 283 | Kiln with preheater precalcine |
| Φ3.5×54 | 3.5 | 54 | 3.5 | 1500 | 0.55-3.4 | 220 | 363 | Kiln with preheater precalcine |
| Φ3.6×70 | 3.6 | 70 | 3.5 | 1800 | 0.25-1.25 | 125 | 419 | Generating kiln for using ofterheat |
| Φ4.0×56 | 4 | 56 | 4 | 2300 | 0.41-4.07 | 315 | 456 | Kiln with preheater precalcine |
| Φ4.0×60 | 4 | 60 | 3.5 | 2500 | 0.396-3.96 | 315 | 510 | Kiln with preheater precalcine |
| Φ4.2×60 | 4.2 | 60 | 4 | 2750 | 0.4-3.98 | 375 | 633 | Kiln with preheater precalcine |
| Φ4.3×60 | 4.3 | 60 | 3.5 | 3200 | 0.396-3.96 | 375 | 583 | Kiln with preheater precalcine |
| Φ4.5×66 | 4.5 | 66 | 3.5 | 4000 | 0.41-4.1 | 560 | 710.4 | Kiln with preheater precalcine |
| Φ4.7×74 | 4.7 | 74 | 4 | 4500 | 0.35-4 | 630 | 849 | Kiln with preheater precalcine |
| Φ4.8×74 | 4.8 | 74 | 4 | 5000 | 0.396-3.96 | 630 | 899 | Kiln with preheater precalcine |
| Φ5.0×74 | 5 | 74 | 4 | 6000 | 0.35-4 | 710 | 944 | Kiln with preheater precalcine |
| Φ5.6×87 | 5.6 | 87 | 4 | 8000 | Max4.23 | 800 | 1265 | Kiln with preheater precalcine |
| Φ6.0×95 | 6 | 95 | 4 | 10000 | Max5 | 950×2 | 1659 | Kiln with preheater precalcine |
Application Scenarios
Our alumina rotary kiln is widely used in the calcination process of alumina production, suitable for various raw materials such as bauxite, kaolin and alumina hydroxide. It is an essential equipment for large and medium-sized alumina plants, and has been exported to Russia, Central Asia, Southeast Asia, the Middle East and Africa, winning high recognition from global customers with stable performance and cost-effective advantages.
We provide full-process services including equipment design, production, installation, commissioning, technical training and after-sales maintenance. With professional technical team and rich overseas project experience, we are committed to helping customers reduce production costs, improve product quality and achieve sustainable development.
