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
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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
APPLICATION FIELDS
DOWNLOADS
DOWNLOADS
ENGLISH
ENGLISH
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DISC DRYER
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The Disc dryer efficiently dries liquid products containing solids in suspension creating solid, dried material.
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FORCED CIRCUL. EVAPORATOR
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The forced circulation evaporator uses a pump to circulate liquid through steam-jacketed tubes at high pressure created to prevent boiling.
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WFF EVAPORATOR
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A wiped film evaporator (WFE), is used ot separate and concentrate components from a liquid mixture using evaporation.
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TUBE CRYSTALLIZER
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Continuous scraped surface crystallizer is generally used in cooling crystallization and viscous cooling duties.
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STEAM TUBE DRYER
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Steam Tube Dryer (STD) is an indirect heat dryer using steam tubes heated by steam as heat source disposed inside the rotating shell.
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DTB CRYSTALLIZER
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DTB crystallizer is for the production of large-size crystalline materials such as ammonium sulfate, potassium chloride and diammonium phosphate.