NPK compound fertilizer production rotary drum dryer
Rotary dryer or rotary drum dryer is widely used to dry humidity granularity materials in the industries of mineral dressing, building material, metallurgy and chemical, coal mining, etc. Wide supply scope and simple operation are its main features, materials should be dried to 3-10% water content to meet the demands for briquetting.
Application of rotary drum dryer
Coal, coke
Clays, phosphates
Starch Pulp
Minerals, fertilizers
Beet pulp
Floatation concentrates
Animal feeds
Germ, stillage
Sludges
Etc.
How dryer works
The material is fed in the rotary drum dryer by the conveyor, and when it's coming through the cylinder, the hot air will flow from it and makes it dried,. The dried material will be collected at the output.
In this drying process, the material will move as the cylinder rotation. With the gravity, the material will fall from high-end to low-end. There are also copy boards in the dryer to raise the material, so that the material and hot air's contact surface area increases, which helps to increase the drying rate and let the material forward.
After drying, the fine particles are collected by the dust collector and the exhaust gas is discharged by the dust collector.
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