Durco Filters Enviro-Dri Sludge Dryers are designed for supplemental dewatering of filter cake (>25 wt% solids) up to 90%, greatly reducing waste volume and weight. Waste disposal costs can be reduced by 75%.

The Enviro-Dri Sludge Dryer is typically used in conjunction with a filter press where the filter press discharges its cake directly into the dryer. This integrated design provides a small footprint.

Low-pressure steam (25 psi) contained in a steam jacket provides heating energy while the sludge cake is mixed within the dryer. Manual or hydraulic operation is available for inlet and outlet doors.

Applications

• Metal Hydroxides
• Inorganic sludge cakes
• Organic sludge cakes
• Solvent Removal

Enviro-Dri Sludge Dryer Rotor

Features

Benefits

Closed Drying Process

• Continuous, homogeneous drying reduces volume, controls emissions, minimizes dusting and eliminates leaks or spills

Quicker Drying Cycle

• Quicker drying cycles allow smaller models to handle larger press loads by using inexpensive hoppers

Indirect Heating

• Low temperature heat transfer eliminates incineration and volatile problems
• Single operation
• All stages take place in the dryer

Low Pressure Steam Operation

• Provides efficient heat source with uniform controlled temperature
• Does not require boiler operator

ASME Code Jacket

• ASME Code Stamped trough jacket provides efficient heat transfer service

Heavy-Duty Drive Assembly

• Double helix, heavy-duty rotor and drive assembly
• Includes adjustable and replaceable wiper blades

Dryer Sized To Filter Press

• No intermediate material handling
• Batch drying operation is independent from press operation

Sliding or Pneumatic Lift Hatch

• Easy access to dryer rotor

Control Timer

• Permits adjustable drying time

Modular Design

• Easy to retrofit in place