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Rotary dryer-fertilizer dryer machine is an important machine in fertilizer production line.It can dry not only NPK fertilizer but also organic fertilizer and many other kinds of fertilizers.In addition,it can be widely used for mining industry,sand drying,coal drying,pharmaceutical industry and many other industries.
1.The Components of Rotary Dryers
1.1 Shell:The shell of rotary dryer can be made from a variety of materials,including carbon steel,stainless steel and a variety of alloys.
1.2 Raw material feed:The raw material feed area,also called the feed chute,is where feedstock is fed into the system,typically by a feed acrew or chute.
1.3 Drive assembly:The drive assembly is the mechanism that cause the drum to rotate.Several options are available here,but the gear and pinion are the best choice.
1.4 Riding ring:Riding ring add structural support for the drum,and serve as a place to burden the pressure of the whole shell.
1.5 Thrust rollers:Thrust rollers push on the riding ring to stop the drum from drifting,or moving horizontally.
1.6 Flights:Available in several designs,material lifter,or flights,help to maximize effiency of heat transfer between the material and the drying air.
1.7 Product discharge:The product discharge area is where product exits the dryer.Here,product can move on to the next step in the process flow.
1.8 Knocking systems:Knocking systems help to prevent build-up within the dryer,by knocking off material as the drum rotates.
2.How Rotary Dryers Work
Rotary dryers are comprised of a rotating drum,into which the material is fed,in combination with the drying air.Flights,or lifters,pick up the material from the bed,carrying it over,and dropping it through the air stream as the drum rotates to maximize heat transfer between the material and drying air.The tumbling action given by a drum offers the added benefit of polishing the pellets,further rounding them as they dry.
Characteristics of fertilizer rotary dryer
Main technical parameters of fertilizer rotary dryer
| Model |
Specification diameter *length of shell (m) |
Produc- tivity (t/h) |
Inclination (degree) |
Inlet temperature (℃) |
Water content of discharge (%) |
Rotate speed (r/min) |
Power (kw) |
Weight (t) |
| HG1212 | Φ1.2*12 | 1-2 | 2-3 | 110-300 | 1-4 | 5 | 11 | 10 |
| HG1515 | Φ1.5*15 | 3-4 | 2-3 | 110-300 | 1-4 | 4.5 | 15 | 16 |
| HG1818 | Φ1.8*18 | 5-7 | 2-3 | 110-300 | 1-4 | 4 | 22 | 25 |
| HG2020 | Φ2.0*20 | 8-10 | 2-3 | 110-300 | 1-4 | 4 | 30 | 28 |
| HG2222 | Φ2.2*22 | 10-14 | 2-3 | 110-300 | 1-4 | 4 | 37 | 45 |
| HG2424 | Φ2.4*24 | 14-16 | 2-3 | 110-300 | 1-4 | 3.68 | 55 | 56 |
| HG2626 | Φ2.6*26 | 16-18 | 2-3 | 110-300 | 1-4 | 3 | 75 | 78 |
| HG2828 | Φ2.8*28 | 18-20 | 2-3 | 110-300 | 1-4 | 3 | 90 | 98 |
| HG3030 | Φ3.0*30 | 20-30 | 2-3 | 110-300 | 1-4 | 3 | 132 | 137 |
| HG3232 | Φ3.2*32 | 30-35 | 2-3 | 110-300 | 1-4 | 3 | 150 | 144 |
Production process of NPK/Organic fertilizer production line

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Company introduction
Taian LiFeng Chemical Equipment Co.,Ltd is a professional fertilizer equipments manufacturer.We have many kinds of fertilizer equipment lines, just like NPK compound fertilizer production line, urea melt spraying granulation equipments line, high-efficiency compound (mix) fertilizer equipments line, the Bulk Blending Fertilizer (BB Fertilizer) equipment line, Organic fertilizer production line, and other fertilizer production lines.And our fertilizer equipments have exported to South Africa,India,Indonesia, Dominican Republic, Korea,Saudi Arabia,Mongolia,Spain and other countries.
Our main equipments as following:
10000-200000 tons / year NPK compound fertilizer production line
30000-200000 tons / year urea melting spray granulation production line
50000-200000 tons/year sulfur-acid NPK granulation production line
10000-120000 tons/year controlled release fertilizer production line
50000-120000 tons / year high-tower fertilizer granulation production line
10000-300000 tons/year organic fertilizer production line
10000-300000 tons/year bulk blending fertilizer production line
10000-100000 tons/year superphosphate fertilizer production line


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