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Rotary Calcination Kiln

Continuous and Controlled Calcination for High-Capacity Gypsum Production

ENIVO Rotary Calcination Kilns are designed for the continuous, controlled, and efficient calcination of gypsum rock in high-capacity gypsum production lines. As the material moves through the kiln in a controlled manner and the temperature profile is managed evenly throughout the process, stable process conditions and consistent product quality can be achieved in large-scale production.

This technology offers a strong solution for gypsum calcination with its continuous operating capability, high-capacity design, and flexible configuration adaptable to different process requirements.

100–1000
tons/day
Capacity
Continuous
Process
Flexible
Fuel Compatibility

Process Description

In a rotary calcination kiln, gypsum rock is continuously fed into the kiln through a controlled feeding system and subjected to a temperature-controlled calcination process as it moves through the rotating cylindrical body. Thanks to the rotary structure, the material remains in continuous motion, is mixed, and stays in contact with the hot gas stream throughout the process.

The feeding system ensures that gypsum rock is introduced into the kiln at a controlled and adjustable rate. Inside the rotary kiln, the material moves in the same direction as the hot gas flow while being continuously redistributed and exposed to the hot gas. This structure helps different particle sizes remain in the kiln for the duration required for proper calcination. Fine material generated during the process and dust collected in the filter can be reintroduced into the process through a suitable line configuration, supporting product efficiency.

Inside the kiln, the material is subjected to thermal treatment for different durations depending on particle size. Finer particles react more quickly, while larger particles remain in the kiln longer and are calcined over a longer period. This natural classification effect helps different particle sizes calcine for appropriate durations and contributes to a more balanced process.

During calcination, crystal water is removed in a controlled manner, and at the end of the process, gypsum rock is converted into calcined gypsum / hemihydrate in line with the targeted quality criteria. The temperature distribution and residence time inside the kiln can be adjusted according to product requirements, allowing the process to be optimized for capacity and product characteristics.

Rotary Calcination KilnRotary Calcination KilnRotary Calcination Kiln

Technical Data

Capacity: 100–1000 tons/day
Process: Continuous and controlled calcination
Feeding system: Continuous and adjustable feeding system
Heating system: Design suitable for different fuel and heating scenarios
Process control: Residence time and temperature profile optimized according to the target product

Key Advantages

Operating principle suitable for continuous production
Stable process performance in high-capacity applications
Consistent product quality through homogeneous temperature distribution
Flexible process structure adaptable to different raw material and capacity requirements
Optimization of product properties through controlled residence time
Suitability for plaster production with optimizable setting time and product behavior
Process structure suitable for operation without pre-drying
Flexible raw material use with wide feed particle size tolerance
Structure suitable for improving energy efficiency through heat recovery
Reliable operating structure for large-scale plants

System Features

Cylindrical rotary kiln body
Mechanical structure suitable for continuous material flow
Burner and heating infrastructure suitable for controlled temperature management
Drive and speed control system designed according to process requirements
Durable steel construction and wear-resistant internal structure
PLC-based process control infrastructure

Why ENIVO Rotary Calcination Kilns?

ENIVO Rotary Calcination Kilns offer a reliable and efficient calcination solution for producers requiring high-capacity production. With continuous operation, controlled material movement, and adjustable process parameters, they support stable production while helping maintain product quality within the targeted range.

These systems can be configured according to different raw material characteristics, capacity expectations, and plant requirements, making them a strong alternative for both new plant investments and the improvement of existing lines. ENIVO provides not only equipment, but also a long-lasting, controlled, and sustainable production solution in rotary calcination kilns.