



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.
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.








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.