Energy-saving rotary tube bundle dryer for grain, feed, chemical and biomass materials. Stable operation, low consumption and customized design available.

Product Overview

   The GHG Series Rotary Steam Tube Bundle Dryer uses  indirect steam heating — steam flows inside tube bundles while material circulates outside. Zero flue gas contact ensures clean, gentle drying ideal for heat-sensitive materials (DDGS, protein powder, germ, bone meal). Patented full-shell heat exchange reduces energy consumption to only 65% of conventional dryers (35% steam savings).

Key Advantages

1,Zero contamination — Indirect heating, no flue gas contact; products meet export feed/food standards

2,35% energy saving — Full-shell heat exchange; only 65% energy of conventional tube bundle dryers

3,Gentle drying — Precise steam temperature control; heat-sensitive materials retain full nutrition & value

4,Long service life — Tubes bear no material weight; ultra-low leakage; start under load

5,360° uniform heating— Rotating tube bundles stir material with zero dead zones

6,20+ materials — One dryer for DDGS, corn fiber, germ, bone meal, sawdust, cassava, straw, etc.

7,Evaporation rate up to 4.9 kgH₂O/m²·h— High-efficiency dehydration

Working Principle 

1. Steam Entry— Saturated steam enters tube bundle via central shaft.
2. Indirect Heat Transfer— Steam condenses inside tubes; heat passes through tube walls to material outside.
3. Uniform Stirring — Drum rotates at 1–8 r/min; tube bundles lift, stir, scatter material for 360° heating.
4. Full-Shell Exchange— Entire drum shell participates in heat exchange.
5. Moisture Evaporation — Water evaporates; extracted by induced draft fan.
6. Continuous Discharge — Dried material + condensate exit separately.
7. Steam Recycling — Condensate returns to boiler.

Why Choose Wangu?
1,National Standard Drafter for Grain Dryers (China).
2,National High-Tech Enterprise.
3,ISO 9001 Certified.
4,2,000+ engineering projects worldwide.
5,27 years of drying technology.
6,200 sets/year production capacity.