Hollow Paddle Dryer for Environmental Processing
Category: Other engineering industries
QUANPIN KJG hollow paddle drying applies indirect heat to slurries, pastes, granules and powders.
Case Details
Equipment Overview
A jacketed, enclosed shell contains two hollow shafts with heated paddles. Wedge-shaped elements mix the material and renew contact with heat-transfer surfaces.
Equipment Features
Indirect heating limits carrier-air demand and dust entrainment. Insulation reduces heat loss. Steam, thermal oil, hot water or cooling water supports heating or cooling duties; batch or continuous arrangements follow the process. Closed recovery may be specified for suitable solvents. Compression and expansion around the paddles promote stable heat transfer and mixing.
Confirmed Technical Data and Operating Results
| Parameter / result | Confirmed value | Material / comparison basis |
|---|---|---|
| Specific steam consumption | 1.2 kg steam per 1 kg water evaporated | Confirmed reference slurry duty; preserve the operating-condition basis. |
Material and Process Review
Hollow paddle drying transfers heat through heated surfaces while paddles agitate the material. Feed consistency, heating duty and vapor handling are important selection inputs. For a hollow paddle dryer, assess conductive drying through representative material trials; compare indirect contact dryers using the complete heating and vapour-handling duty, particularly for sludge drying.
Provide feed composition, initial and final moisture, throughput, temperature limits, utilities and cleaning requirements so QUANPIN can define the project operating conditions.
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