Our cyclone preheater calciner systems are easy to operate, highly reliable, and are suitable for alternative fuels if required. Optimised for fuel and power consumption, they also deliver effective emissions control. The full range of cyclone preheaters is flexibly designed for easy upgrades.
FLSmidth Low NO(x) Calciner
The Low NOX Calciner is our latest, most advanced in-line calciner. It is the result of extensive research, advanced CFD modelling and field experience gained from more than 50 years of helping cement producers lower their NOX emissions. This in-line calciner is suitable for upgrades and new installations.
In-Line Calciner Preheater System
FLSmidth’s In-Line Calciner Preheater System can help you lower NOx and CO emissions and optimise your fuel and power consumption. First introduced in 1976 and continually updated and improved, it is the standard for pyroprocess systems today. This preheater calciner system can be used for a new production line or retrofitted to any existing kiln.
Cast central pipe for high-temperature cyclones
Our cast central pipe improves separation and thermal efficiency, enabling your plant to save fuel and reduce power consumption. Use it to decrease energy costs or to increase production for a fast return on investment.
Our cyclone preheater calciners have flexible design for easy upgrades
As your preheater needs change and grow, our line of systems is ready to adapt and grow with you.
New, more stringent emissions requirements? Our cyclone preheater calciner systems offer effective emissions control for NOx and other gases. Fuel and power prices changing? Our systems optimise fuel and power consumption to save you money and improve efficiency. Using alternative fuels? Our systems are highly suitable for solid waste, including textile waste and paper waste.
We’re proud of our flexible design that makes upgrades easy. And our preheater calciner systems are thoroughly tested and one of the most reliable in the business. They’re also straightforward and easy to operate.
Optimised for you
Every one of our FLSmidth preheater calciner systems is optimised for the individual situation in which it will be used. We made our first FLSmidth In-Line Calciner in 1976 and have decades of experience delivering solutions for each plant’s specific challenges.
We can also upgrade almost any existing kiln system to a cutting-edge ILC, even if it originally came from another supplier. Whether you have a conventional suspension preheater or another type of calciner system or even a long dry and wet kiln system, we can help you bring it up to date.
Why we use LP cyclones
Our preheaters are all based on proven low pressure (LP) cyclones. The unique design of the LP cyclone gives you high thermal efficiency and low pressure drop, but it also offers you a flexible and space-saving layout.
LP cyclones have no horizontal surfaces on the inside for material to collect, which helps keep operation stable. The top stage is specially-designed to provide the lowest dust loss possible while maintaining a low pressure drop. And if you have an existing preheater, we can individually fit an LP cyclone just for you, without the investment of a new preheater system
Solid waste fuel for preheater calciner systems
More and more cement plants are burning alternative fuels, particularly solid waste, to achieve a variety of benefits.
Our ILC preheater calciner systems can integrate with our HOTDISC combustion device to achieve remarkable fuel flexibility with very little impact on process stability and performance. No need to shred lumpy waste material: our calciner system burns all types of solid waste in sizes up to 1.2 metres.
