A reliable discharge device is critical to the smooth operation of calciner plants to ensure a solid, constant inventory and assist in fluidizing solids. The discharge device is used to control the flow of hot alumina at the furnace seal pot.
Increased plant performance, availability, and safety
Improved product quality
Stabilized furnace inventory
Longer life span
The discharge device is controlled by measuring furnace differential pressure and operates as a variable cross-section valve. We developed the first CFB calciner in the early 1970’s. We have designed and constructed 51 calciners with continuous developments and innovation in material selection and design over 5 decades. We possess a proven track record with project execution excellence globally, most projects delivered as EPC contracts.
Our latest generation discharge device is embedded in the rich history of Outotec alumina calcination and has been developed to reflect a state-of-art Outotec design.
Enhanced material selection for lance tip, lance tube, and nozzle bricks, in alignment with plant temperature and customer preferences
Optimization of Cv value for a variable cross-section
Improved actuator control using the latest pneumatic actuator and positioner design
Compatible with existing communications protocol(4-20 ma + Hart, Fieldbus, etc.) refining feedback
New center purging air design embedded in the lance tube, eliminating manual purging lance, or can be used in combination with manual purging lance
Incorporation of the latest machine safety regulations
The new discharge device has shown increased plant performance, availability, and safety. Product quality and homogeneity is improved by stabilizing the furnace inventory. The longer life span of the device and components saves costs and reduces maintenance with a fast and easy exchange of the device.
The additional features and longer life span of the device and components saves costs and reduces the maintenance period with a fast and easy exchange of the new device.
Improved, standardized spare parts
Coupled with the development of the discharge device, we have also improved and standardized the key components and spare parts. The eCatalogue, spare part procurement and management can be optimized and accelerated with an adequate stock holding of most critical spare parts.