TUBE BUNDLE DRYER

Tube Bundle Dryer is an indirect steam heated dryer and is well known for its efficient and gentle treatment of products.

WORKING PRINCIPLE

The steam heated tube bundle slowly rotates in a fixed housing and conveys the product to be dried axially through the dryer. Shovels transport the product along the circumference of the housing, where it falls through the heated tube bundle for each rotation.

The economic and gentle drying is achieved by contact with the tubes and convection. The heat source is typically saturated steam between 4 – 10 barg, solutions with lower steam pressure are available.

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MAIN DESIGN FEATURES

Effective self-cleaning to minimize dead zones, product accumulation and product degradation
Excellent kneading and mixing for better homogenization
Effective heat transfer
High surface renewal efficiency
Large free vapor volume
Precise and uniform temperature control due to large heat transfer areas
Continuous or batch processing
Process intensification
Processing of sticky and highly viscous products
Residence time is independent from agitator speed, wide and flexible range of average residence times
Reliable process scale-up from pilot to industrial units
Large production capacities, economy of scale
Maximum process yield per unit volume
Reliable, robust design
Short return of investment

BENEFITS

Drying only with indirect steam and sweep ambient air, means no pollution to your product.
Low installation costs through modular design and pre-manufacturing.
Gentle drying through low temperatures.
Low energy consumption in the range of 1,25 to 1.3 lbs of steam/lbs of water evaporation.
Optimal sealing and insulation secure high wet-bulb temperatures and optimize energy recovery up to 67% in further processes (e.g. evaporator).
Safe process: minimized oxygen content ensures the lowest explosion and fire risk. ATEX design if required.
Clean and environmentally friendly: Integrated dust collector to minimize dust emissions to the atmosphere – closed-loop systems are also available.
Closed gas-tight system as well as design for drying below atmospheric pressure are possible.

APPLICATIONS

Starch and Grain Industry

Alcohol / Ethanol and Brewery

Energy & Environmental

MODELS AND TECHNICAL SPECIFICATIONS

Model	Area (m²)	Drying Capacity (kg H2O/m² h)	Rotate Speed (r/min)	Power (Kw)	Dimensions (mm)
TBD0400	400	2.5~4.5	7~11	30	107802700850
TBD0500	500	2.5~4.5	7~11	37	1090028104110
TBD0600	600	2.5~4.5	7~11	45	1103030304270
TBD0700	700	2.5~4.5	7~11	55	1117032603875
TBD0800	800	2.5~4.5	7~11	75	1144034704100
TBD1000	1000	2.5~4.5	7~11	90	1220036604310
TBD1200	1200	2.5~4.5	7~11	110	1228039804730
TBD1300	1300	2.5~4.5	7~11	132	1290041604900
TBD1500	1500	2.5~4.5	7~11	132	1400046005400
TBD1600	1600	2.5~4.5	7~11	160	1450050005900