Collection: Hollow Paddle Dryer

Product Overview
The Hollow Paddle Dryer is an energy-efficient, indirect-heat conduction drying system designed for high-moisture materials such as sludge, pastes, and granules. 

How It Works
The dryer features two hollow shafts fitted with wedge‑shaped paddle blades. Heating media (e.g., 0.6 MPa saturated steam) flow through both the shaft/blades and the jacketed housing. As the shafts rotate slowly, the paddles continuously mix, break, and convey the material forward while transferring heat directly. The self‑cleaning action of the paddles keeps the heat transfer surfaces clean.

Key Advantages

• High thermal efficiency (80–90%), low steam consumption (~220 kg/h)

• Self‑cleaning design – minimal material build‑up

• Low dust carryover – environmentally friendly

• Handles initial moisture up to 80%, reduces to 10–20% in one pass

• Continuous, adjustable residence time

Applications

• Municipal and industrial sludge drying

• Chemical pastes and filter cakes

• Food and pharmaceutical residues

• Adhesive and polymer industries

• Any heat‑sensitive or high‑viscosity material requiring low‑temperature, dust‑free drying