Double Drum Rotary Dryer

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The double drum rotary dryer has high thermal efficiency and shows remarkable energy-saving effect.
Materials exchange heat with the hot air in the form of radiation, convection or conduction in the inner drum, while in the outer drum, heat exchange is performed through both conduction and convection.
The lifting blades of multiple designs make the materials exchange heat with the hot air more fully.
The length of this double drum rotary dryer is reduced by about 40% compared with single drum product. This is conducive to processing set-up, reduces the plant construction area, and saves construction investment.

Technical Parameters

Specification	m	Ф2.0×7m		Ф2.5×7.5m	Ф3.2×8m	Ф3.6×8.5m	Ф4.2×9m
Diameter of the outer drum	m	2.0		2.5	3.2	3.6	4.2
Length of the outer drum	m	7		7.5	8	8.5	9
Drum volume	m3	21.98		36.8	64.3	86.48	124.6
Drum speed	rpm	4-10		4-10	4-10	4-10	4-10
Initial moisture content of material	%	8-20		8-20	8-20	8-20	8-20
Final moisture content of material	%	≤1		≤1	≤1	≤1	≤1
Maximum air intake temperature	℃	750-900℃		750-900℃	750-900℃	750-900℃	750-900℃
Capacity	T/h	Slag	12-18	22-25	30-38	40-48	55-65
		Fly ash	8-10	15-20	25-30	35-40	40-50
		Coal	8-10	13-18	23-28	33-38	40-45
		Yellow sand	15-20	23-28	35-43	40-50	60-70
Motor model		Yr160m-4		Yr132m-4E	Yr132m-4E	Yr160m-4E	Yr160m-4E
Motor power	KW	5.5×2		7.5×2	7.5×4	11×4	15×4
Reducer model		XWD-6		XWD-6	XWD-6	XWD-6	XWD-6
Reducer speed ratio		23-29		23-29	23-29	23-29

Related Names
Industrial Drying Machine | Energy Efficient Dryer | Hot Air Dryer