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Description of rotary dryer:

Rotary dryer which is also known as rotary drum dryer,Mainly composed of rotary body, lifting blade, driving device, supporting device and sealing ring it is the key equipment to dry different materials with humidity or granularity in various fields.

Application of rotary dryer:

Rotary dryer is widely used for drying materials in the industries of cement, mine, contruction, chemical, food, compoud fertilizer, etc. Feeding and discharging unit is installed with thermocouple to control drier temperature. The temperature change of drier's feeding end can be indicated by the thermometer to control the inner drier temperature ( generally 250-350°C)

Working principle of rotary dryer:

Material to be dried enters the dryer, and as the dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the dryer, passing through the hot gas stream as it falls. This gas stream can either be moving toward the discharge end from the feed end (known as co-current flow), or toward the feed end from the discharge end (known as counter-current flow). The gas stream can be made up of a mixture of air and combustion gases from a burner, in which case the dryer is called a direct heated dryer. Alternatively, the gas stream may consist of air or another (sometimes inert) gas that is preheated. When the gas stream is preheated by some means where burner combustion gases do not enter the dryer, the dryer known as an indirect heated type. Often, indirect heated dryers are used when product contamination is a concern.

The main technical paraeter rotary dryer:

Spec./m (Dia.×Length)	Shell Cubage (m³)	Capacity (t/h)	Installation Obliquity (%)	Highest Inlet Air Temperature (°C)	Main Motor (KW)	Weight (t)
Φ1.2×8.0	9.0	1.9 ~ 2.4	3 ~ 5	700 ~ 800	7.5	9
Φ1.2×10	11.3	2.4 ~ 3.0	3 ~ 5	700 ~ 800	7.5	11
Φ1.5×12	21.2	4.5 ~ 5.7	3 ~ 5	700 ~ 800	15	18.5
Φ1.5×14	24.7	5.3 ~ 6.6	3 ~ 5	700 ~ 800	15	19.7
Φ1.5×15	26.5	5.7 ~ 7.1	3 ~ 5	700 ~ 800	15	20.5
Φ1.8×12	30.5	6.5 ~ 8.1	3 ~ 5	700 ~ 800	18.5	21.5
Φ1.8×14	35.6	7.6 ~ 9.5	3 ~ 5	700 ~ 800	18.5	23
Φ2.2×12	45.6	9.7 ~ 12.2	3 ~ 5	700 ~ 800	22	33.5
Φ2.2×14	53.2	11.4 ~ 14.2	3 ~ 5	700 ~ 800	22	36
Φ2.2×16	60.8	13.0 ~ 16.2	3 ~ 5	700 ~ 800	22	38
Φ2.4×14	63.3	13.5 ~ 16.9	3 ~ 5	700 ~ 800	37	45
Φ2.4×18	81.4	17.4 ~ 21.7	3 ~ 5	700 ~ 800	37	49
Φ2.4×20	90.4	19.3 ~ 24.1	3 ~ 5	700 ~ 800	45	54
Φ2.4×22	99.5	21.2 ~ 26.5	3 ~ 5	700 ~ 800	45	58
Φ2.6×24	127.4	27.2 ~ 34.0	3 ~ 5	700 ~ 800	55	73
Φ3.0×20	141.3	30.1 ~ 37.7	3 ~ 5	700 ~ 800	75	85
Φ3.0×25	176.6	37.7 ~ 47.1	3 ~ 5	700 ~ 800	75	95
Φ3.2×25	201	42.9 ~ 53.6	3 ~ 5	700 ~ 800	90	110
Φ3.6×28	285	60.8 ~ 76.0	3 ~ 5	700 ~ 800	160	135

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