The BOLZ-SUMMIX conical screw dryer is a vacuum contact dryer. Due to its contained closed system and indirect heating of the product it is particularly suited for drying hazardous and toxic products to a very low final moisture content. As a result of its unique, very gentle mixing character, even mechanically sensitive products are not destroyed. The product quality after the drying process is reproducible and as good as that of the initial product, whereas the driving forces required are very low.
The achievable, high end vacuum ensures low drying temperatures which is a clear advantage when drying temperature-sensitive products. It also ensures good heat transfer rates and short drying times, while at the same time requiring only little energy. The short drying times and the high containment level of the fully closed system make the conical dryer the best choice in instances where environmental and/ or product requirements are strict and remarkably high.
Temperatures | Orbital system: Operating temperature 160°C Central shaft: Operating temperature 240°C |
Pressure | Operating pressure: -1 bar up to +6 bar (10 bar ESP explosion shock proof design, different pressure acc. customer requirement) |
Materials | Stainless steel such as:
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Surface finish | Product contact – fine polish / electro-polish Externals – sanitary polish / glass blast bead |
Variations | Optimized versions and specialized details for chemical and pharmaceutical application or according customized requirements |
Rotary shaft seals | From single- or multiple lip seal assembly to dry, gas-purged or liquid quench, non-contact lift-off mechanical seals. Preferred in a safe and quick change cartridge design. |
Regulations/ Standards |
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DE DIETRICH is the world's leading provider of engineered systems, process equipment and solutions for the pharmaceutical, food, green chemistry and chemical industries.
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