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Rotary drum dryers

Rotating drum – or rotary – dryers consist of a drum, several metres in length and ~2 m in diameter, which is inclined at 3–4° to the horizontal and rotates around its axis at a speed of 4-8 RPM. The drum is fitted with internal structures (fins, paddles or blades) which agitate and break up the sludge solids and help them pass along the length of the drum while being dried by a stream of warm air passing along the length of the drum.

Rotary drum dryers related videos

Benenv sludge dryer and carbonization system Source: Benenv Co.,Ltd. / YouTube

Benenv sludge dryer and carbonization system

Film to demonstrate the Benenv rotary dryer for industrial waste and sludge drying. This rotary dryer features a crushing and mixing mechanism developed by Benenv.

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Rotary drum dryers features and blogs

Schematic of intensification of AD by thermal hydrolysis, showing thickening, TH, AD and post-AD DW. Coversion of biogas be CHP engine included.
Blog

Pretty intense: the intensification of sewage sludge processes

Sludge intensification processes increase the sewage sludge solids concentration through thickening/dewatering or the biogas generation by digestion. But at what point do you stop extracting more water from the sludge or enhancing biogas production?

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