With its flexible design, different agitator designs and material grades, the BOLZ Cylindro Conical Dryer CCD from Heinkel can reportedly be adapted to almost any process requirement in the chemical, fine chemical, pharmaceutical and food industry. It is used as vacuum contact dryer and evaporator as well as sterilizer or alkalizer, providing high quality and short drying times. The products processed range from slurries and pastes to filter cakes, granulates and powders.
The Cylindro Conical Dryer’s gentle yet intensive mixing ensures short drying times without significant product debris. Drying is affected at a very low pressure of less than 30 mbar absolute and the final moisture content is no more than a few ppm, depending on the application, according to the company.
The efficient Cylindro Conical Dryer is often used after mechanical solid-liquid separation but can also be operated without a preceding mechanical separation stage. It is an all-purpose dryer that meets various process requirements due to the different agitator designs, including helix, double helix, paddle or segmented helix. Different application-specific materials are available for the product contacted parts, from stainless steel to (super) duplex, Hastelloy or titanium.
The central mixing helix is the core technology of the BOLZ Cylindro Conical Dryer with its central shaft agitator. Precisely adapted to the vessel design and running close to the wall, the helix ensures optimum mixing of the product. The mixing helix feeds the product upwards along the heated vessel wall, while the center of the vessel vertical ensures mixing by gravity. Rotation results in a horizontal flow component. The three-dimensional mixing principle means new material is continuously fed to the heated vessel wall, leading to a homogeneous temperature in the dryer. In combination with a heated mixing helix, the optimized agitator achieves perfect mixing results and reduced drying times.
