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IP-044 | Biomass Rotary Drum Dryer (Three-Pass System)
IP-044 | Biomass Rotary Drum Dryer (Three-Pass System)
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Three-pass drum dryer for continuous biomass drying with indirect heat supply
The biomass drum dryer is designed as a continuous drying stage for moist bulk material or biomass. The current reference design is based on a discharge capacity of 500 kg/h at approx. 10% residual moisture. Heat is supplied indirectly via a biomass boiler with a hot water circuit and an upstream air/water heat exchanger; flue gases are not introduced into the product stream.
Technical specifications
- Type: Three-pass drum dryer / three-pass system
- Operating mode: continuous
- Input material: biomass / bulk material
- Discharge capacity: 500 kg/h
- Input moisture: 50–55%
- Residual moisture: approx. 10%
- Wet material throughput: approx. 900–1,000 kg/h
- Water evaporation: approx. 400–500 kg/h
- Thermal power requirement: approx. 350–450 kW
- Thermal design point: 450 kW
- Total length: approx. 6,172 mm
- Total width: approx. 1,132 mm
- Total height: approx. 1,590 mm
- Max. outer diameter: approx. 1,105 mm
- Drum diameter: approx. 1,036 mm
- Machine weight: approx. 3,550 kg
Design features
- rotating three-pass drying principle
- indirect heating without flue gas in the product stream
- hot water heat supply via biomass boiler and air/water heat exchanger
- temperature-controlled process air supply
- load adjustment via the hot water circuit / 3-way control valve
- separate exhaust air treatment or cyclone provided as a downstream process stage
- designed for accessible and cleanable heat transfer with dust- and fiber-containing biomass
Thermal system basis
- Heating water reference: 100 / 85 °C
- Heating water volume flow: approx. 26 m³/h
- Process air: approx. 25,000–27,000 m³/h
- Air temperature reference: approx. 20 °C inlet / 75–85 °C outlet
- Heat exchanger: finned tube register in cross-flow, multi-row
- Target air velocity at the register: approx. 2.5–4 m/s
- Target pressure loss air side: < 1,500 Pa
Technical Deliverables
Technical Deliverables
• Technical assembly drawing SN-026479 – Rotary Drum Dryer (Three-Pass)
• Concept DN-002724 – Drum drying 500 kg/h with heat supply via biomass boiler and air/water heat exchanger
• Documented process and mass balance data for 500 kg/h discharge output
• Documented thermal design basis up to 450 kW
• Product-related license and usage documentation
• Further CAD/STEP data, manufacturing drawings, parts lists, or native design data only to the extent expressly agreed upon in the specific scope of the license
• Concept DN-002724 – Drum drying 500 kg/h with heat supply via biomass boiler and air/water heat exchanger
• Documented process and mass balance data for 500 kg/h discharge output
• Documented thermal design basis up to 450 kW
• Product-related license and usage documentation
• Further CAD/STEP data, manufacturing drawings, parts lists, or native design data only to the extent expressly agreed upon in the specific scope of the license
Technical Documentation
Technical Documentation
- IP-ID
- IP-044
- Drawing reference
- SN-026479
- HELiOS / document reference
- Drawing SN-026479; Concept DN-002724; Engineering Asset Database DN-002646; Shop Revision REV01
- Product family
- Rotary Drum Dryers
- Category
- Thermal Process Stage / Biomass Drying
- Technology maturity
- Industrial Application
- Development status
- System Development
License & Usage Rights
License & Usage Rights
Use is permitted exclusively on the basis of a license agreement. Unless otherwise agreed, the standard basis is a non-exclusive, perpetual license to use the asset. The permitted scope may include project execution, quotation preparation, development of technical solutions and further development of existing systems. Manufacturing, series-production, disclosure, sublicensing and other commercial exploitation rights for the respective asset are defined expressly in the specific license agreement. The license fee is determined on an asset- or project-specific basis according to the scope of rights and commercial use.
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