Paddle dryer for industrial sludge

Achieve consistent drying and pasteurization of complex materials with this advanced paddle dryer, designed for thorough heat transfer and hygienic treatment, ensuring your production line maintains optimal quality and efficiency.

Processes Sludge and Biomass with Efficient Heat Transfer

The ANDRITZ Gouda Paddle Dryer is engineered for maximum efficiency in drying applications, particularly suitable for sludge and biomass processing. Featuring rotating heated paddle shafts in a heated trough, this equipment ensures exceptional heat transfer and uniform product quality by maintaining consistent temperature control without back-mixing. Its specialized paddle design enables hygienic treatment and pasteurization, handling materials such as industrial and municipal sludge, polymers, gypsum, and more. Capable of drying products to specific moisture levels, it aids in producing biosolids pellets, fertilizer granules, and other end-products. Designed for continuous operation, this paddle dryer includes a vacuum option allowing for low-temperature processing, optimizing energy consumption. Constructed with corrosion-resistant materials, it stands up to high temperatures and heavy-duty use, certified by ASME, TÜV, and other international standards. With automatic integration possibilities, the unit offers a clean operation that aligns with environmental compliance and operational safety.

Benefits

  • Ensures consistent product quality through precise temperature control and uniform heat distribution.
  • Enhances operational safety and hygiene with fully enclosed, vacuum-capable processing.
  • Offers flexible drying options to achieve desired moisture levels for various end-products.
  • Optimizes energy usage with an efficient heat transfer system, minimizing operational costs.
  • Provides long-term reliability and durability even in corrosive environments, backed by global certifications.

General


Applications
Chemicals,Polymers,Food,Metal powders,Cocoa,Sugar,Minerals,Milk,Industrial sludge,Drilling mud,Flour,Starch,Municipal sludge,Gypsum,Paper sludge,Digested manure,Biomass
End products
Processed animal feed,Metal alloy powders,Modified starch,Cocoa powder,Dried polymers,Recycled paper fibers,Granulated sugar,Dried drilling cuttings,Mineral concentrates,Bread flour,Dried milk powder,Compost,Gypsum wallboard components,Fertilizer granules,Biosolids pellets
Steps before
Concentration,Separation,Pre-treatment
Steps after
Pasteurization,Hygienic treatment,Incineration,Recycling,Packing
Input ingredients
sludge,industrial sludge,municipal sludge,drilling mud,paper sludge,biomass,digested manure,chemicals,polymers,gypsum,minerals,metal powders,food,milk,starch,cocoa,flour,sugar
Output ingredients
dried sludge,dry solids,pasteurized sludge,hygienically treated sludge
Market info
ANDRITZ is known for its expertise in supplying industrial ETO equipment and services, specializing in sectors like pulp and paper, hydropower, and metals. It has a strong reputation for innovation and engineering excellence.

Technical Specifications


Heat Transfer
Excellent due to specially shaped paddles
Sludge Retention Time
Long
Average Sludge Temperature
100°C
Dry Solids Level
35-40%
Temperature Control
Excellent
Product Quality
Uniform
Machine Design
Hygienic
Operational Mode
Fully continuous
Plug Flow
Good
Temperature Range
Low temperature possible due to vacuum
Energy Efficiency
High
Construction
Robust with accurate constant tolerances
Lifespan
Long,continuous lifecycle
Heat Exchanging Surface
High relative to volume
Self-cleaning Capacity
Yes,due to wedge-shaped paddles
Shear Forces
Yes,on paddle surface
Flow Characteristics
Even plug flow
Automation
Metris addIQ control systems
Modification,Upgrades
Available

Operating Characteristics


Drying method
Once-through drying technology
Heat transfer efficiency
Excellent,due to specially shaped paddles
Flow type
Plug flow
Operation type
Fully continuous
Temperature control
Uniform product temperature
Moisture level control
Any residual moisture level
Automation level
Manual / Metris addIQ control systems
Retention time
Controlled for uniform end product
Hygienic design
Ensures pasteurization and hygienic treatment
Energy efficiency
High,due to compact design

Material Compatibility


Abrasion resistance
Yes
Biological compatibility
Hygienic design
Cleanability
Self-cleaning capacity
Corrosive resistance (e.g. acids)
High
Density/particle size
Handles various densities

Physical Characteristics


Machine footprint
Compact
Shape
ω- (omega) shape trough
Discharge method
Adjustable overflow
Paddle type
Rotating heated paddle shafts
Construction
Robust

Custom Options


Control panel type
PLC interface
Integration possibilities
Metris addIQ control systems
Discharge method
Adjustable overflow
Footprint
Compact design