Lime Rotary kiln

The lime rotary kiln, also known as drum rotary kiln, is equipped with an advanced structure and combined flak seal on both ends. It uses complex refractory materials to achieve an air leakage factor of less than 10%, which reduces heat loss. The rotary lime kiln plays a vital role in shortening smelting time, improving product quality, optimizing smelting technology, and enhancing economic benefits.

    Working Principle

    The lime rotary kiln is composed of several parts, including the kiln body, feeding device, fabric device, combustion device, ash discharging device, electric apparatus, instrument control device, and dust removal device. The cylinder is inclined and rotates slowly, causing the limestone to enter the kiln through the kiln end and move down towards the kiln head. Fuel is burned in the kiln through the burner at the kiln head end, and the heat is transferred to the limestone through radiation, convection, and conduction. During this process, the limestone is calcined into quicklime which exits through the kiln head end. Meanwhile, the high-temperature flue gas enters the kiln tail dust removal system through the limestone kiln tail end.

    limestone rotary kiln


    High efficiency Lime Production
    The lime rotary kiln features an advanced structure and utilizes a low-pressure loss vertical preheater. This increases the preheating efficiency of limestone by 20-25% and enhances its decomposition rate, achieving efficient lime production.
    Multiple Limestone Utilization
    The utilization rate of limestone is improved by directly using preheated limestone together with fine-grained limestone, which expands the range of applicable raw materials.
    Fuel flexibility
    Rotary kiln lime can be fired with a variety of fuels, such as coal, natural gas, or oil, making it highly adaptable to different fuel sources and allowing for cost savings.
    Highly Automatic Control
    The lime rotary kiln production process is highly automated and can be effectively controlled using advanced instrumentation and control systems. This allows for precise regulation of temperature, material flow, atmosphere, and other critical parameters, resulting in improved production efficiency and stability.
    Environmental Protection and High Efficiency
    Limestone rotary kiln adopts closed design, which can effectively control the emission of waste gas and dust and reduce the pollution to the environment. At the same time, the efficient lime production process can also reduce energy consumption and improve energy utilization efficiency.
    Easy Maintenance
    Maintenance for a lime rotary kiln is straightforward with easily replaceable key components, reducing downtime and maintenance costs while improving equipment uptime and reliability.


    Design capability (t/d)1502002503003504005006007508001000
    productActivated lime light burnt dolomiteActive lime
    Specifications (m)Φ2.5x40Φ2.8x42Φ3x46Φ3.2x50Φ3.5x54Φ3.6x5Φ3.8x58Φ4.2x50Φ4.3x58Φ4.3x64Φ4.8x68
    Effective volume (m³)142190235292390430505575/5486707381005
    Combustion temperature1350/12501350/12501350/12501350/12501350135013501350135013501350

    Related Cases

    Related Products








    [email protected]

    Submit Request