Sand drum dryer for drying material with humidity or granularity in the industries of mineral dressing, buliding material, metallurgy and chemcia, it can be used for drying many kinds of materials such as : silica sand, river sand, slag, frac sand,etc.
Sand drum dryer is well kown as Rotary Sand Dryer, Silica Sand Drying Machine, etc.
Sand drum dryer is handling by bringing it into direct contact with a heated gas. Sand drum dryer is made up of a large, rotating cylindrical tube,The dryer slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through the dryer smoothly.
Working principle of Sand drum dryer:
Material to be dried enters the drier, and as the Sand drum 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 silica sand 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 rotary sand 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 sand dryer machine known as an indirect-heated type. Often, indirect heated dryers are used when product contamination is a concern.
|
Model
|
Processing
Capacity
|
Input
Moisture
|
Output
Moisture
|
Main Motor
for Sand Dryer
|
Coal
Calorific Value
|
Feedinlet
Temperature
|
|
Ø1.5X14M
|
10-12
|
17-23%
|
<10%
|
15
|
>5500 KCAL/KG
|
700±50℃
|
|
Ø1.8X14M
|
15-18
|
17-23%
|
<10%
|
18.5
|
>5500 KCAL/KG
|
700±50℃
|
|
Ø2.0X16M
|
20-25
|
17-23%
|
<10%
|
18.5
|
>5500 KCAL/KG
|
700±50℃
|
|
Ø2.2X18M
|
25-30
|
17-23%
|
<10%
|
22
|
>5500 KCAL/KG
|
700±50℃
|
Notice: Any change of Sand Drum Dryer technical data shall not be advised additionally.
