Overview

The patented HF-Inverting Filter Centrifuge, introduced in 1977, completely eliminated some of the inherent flaws of conventional centrifuge technology. The result-- the first centrifuge with a filter cloth that was axially moveable. This allowed for the filter cloth to be inverted while under rotation completely discharging the solids, leaving the filter cloth free of a residual heel while maintaining a totally-enclosed gastight system.

In the 1990’s Heinkel introduced the PAC (Pressure Added Centrifugation) System. The PAC system is an option that is able to drive off additional moisture from the filter cake by introducing compressed gas (typically Nitrogen) into the bowl of the machine (up to 6bar) while the centrifuge is still in rotation. Additionally, this system can perform as a Fixed Bed Dryer by introducing heated Nitrogen (up to 120deg C). There are documented processes that have been able to completely eliminate the need for a down-stream dryer by utilizing the PAC system.

Heinkel’s Inverting Filter Centrifuge technology offers the industry the most versatile centrifuge on the market. Difficult-to-filter material that traditionally could not be processed on a centrifuge can now be manufactured in an economical and efficient manner.

The Heinkel Inverting Filter centrifuge operates on the principle of “Thin Cake Filtration” delivering the following benefits:

• No minimum amount of material is required
• High dewatering rates
• Ability to process highly compressible material
• Very consistent quality batches
• Lower residual moisture levels

Optimizing a process utilizing Heinkel’s “Thin Cake Filtration” along with the PAC system provides the capability to turn the most difficult-to-filter materials into free flowing powder.
In 2007, Heinkel introduced the newest generation of Inverting Filter Technology. The new F Series centrifuge takes all the benefits of the past HF machine and incorporates them into a more compact, operator-friendly machine with higher g-forces, 50% fewer parts, and greater production rates.