4.8×110m Rotary Kiln forNickel Laterite
Technical Parameters
1. Equipment name:Roasting Reduction kiln
2. Specification:φ4.8×110m(Inner Diameter of shell body ×Length)
3. Use:The Rotary kiln should be used in removing free water and crystal
water of Laterite Nickel Ore, and its materials is reduction and roasting, and then output the
calcine is used to product nickel iron ore by the heat furnace.
4. Materials properties: Laterite Nickel Ore(Heap specific gravity
1.1~1.4t/m³,Natural heap up angle is 38°,Moisture is 25%~27%,Granularity is less 50mm,Granularity of reduction coal is 5~15mm)
5. Stay time of the materials: 90minutes
6. Amount of into kiln ore:140~150t/h
7. Rotary speed of main driving:0.5~1.53r/min(Variable frequency)
8. Rotary speed of auxiliary driving:~9.9r/h
9. Slope:3.5%
10. Using fuel: Coal gas
11. Length of preheating zone/ temperature of the materials:0~15m/80~100°C
Length of drying zone/temperature of the materials:40~45m/150~550°C
Length of roasting reduction/temperature of the materials:40~45m/600~1000°C
Length of cooling zone/temperature of the materials:8~10m/800~850°C
12. Filling rate:10%~11%
13. Capacity:100~105t/h(Calcine)
14. Outlet temperature of calcine:800°C~850°C
15. Outlet temperature for flue gas:~400°C
16. Flue gas volume of outlet:430000Nm³/h~450000Nm³/h
17. Number of supporting seat:4 pieces
18. Driving type: Bilateral rigid driving
19. Sealing type: The kiln head and kiln end are used to labyrinth
fish scale type flexible seal (2 layers stainless steel plus heat-resistant ceramic fiberall labyrinth fish scale type flexible seal (2 layers of stainless
steel and heat-resistant ceramic fiber))
20. Type of catching wheel: Bilateral hydraulic
21. Kiln head cooling: Air cooling
22. Type of tyre: Filled rectangle
23. Motor of main driving
Quantity:2sets
Type:YSNP450L1-6,B3
Power:355 kW×2
Voltage:380V
Speed:980r/min
Speed range:300~980r/min
Control mode: Frequency control
Protection grade:IP54
Insulation grade: F
Cooling method:IC416
Starting torque:2.5times
Manufacturer: Shanghai Nanyang Motor
24. Main reducer
Quantity:2 sets
Type : P318W-80
Center distance:1535mm
Nominal ratio:80
Actual ration:78.464
Manufacturer: Nanjin High Gear CO. Ltd.
25. Auxiliary driving motor
Quantity:2 sets
Type:Y225S-4
Power:37 kW
Voltage:380V AC
Speed:1480r/min
Protection grade:IP54
Insulation:F
Manufacturer:SIEMENS(China) Co. Ltd.
26. Reducer for auxiliary driving
Quantity: 2sets
Type:YNL305-14Ⅰ/Ⅱ
Center distance:305 mm
Nominal ratio:14
Manufacturer: Nanjin High Gear CO. Ltd.
27. Equipment weight:1288t(Excluding the weight of feeding & discharging cover and refractory
materials and anchor parts)
28. Inner lining of rotary kiln: lining thickness of roasting zone
is 300mm, the rest lining thickness are 230mm (Total weight of the kiln body and refractory materials:~1350t)
| Model | Capacity (t/h) | Speed (rpm) | Slope (%) | Support No. | Gearbox | Motor model | Power (kw) | Remark |
| Ø1.6×32m | 2 | 0.58-2.85 | 4 | 3 set | ZQ75-50 | YCTZ50-4A | 18.5 | |
| Ø1.6/1.9×36m | 2.5~3 | 0.53-1.59 | 4 | 3 set | ZQ110-7 | YCTZ50-4B | 22 | |
| Ø1.9×39m | 3~3.5 | 0.53-1.59 | 4 | 3 set | ZQ125-7 | YCT315-4A | 37 | |
| Ø2.2×38m | 5~6 | 0.214-1.64 | 3.5 | 3 set | Main ZS125-5-II | Main YCT315-4A | 37 | ★ |
| Auxiliary ZQ40-40 | Auxiliary Y112M-4 | 4 |
| Ø2.2×45m | 4~5 | 0.214-1.64 | 3.5 | 3 set | Main ZS125-5 | Main YCT315-4B | 45 | |
| Auxiliary ZQ40-40 | Auxiliary Y112M-4 | 4 |
| Ø2.5×40m | 6~7 | 0.62-1.5 | 3.5 | 3 set | Main ZS165-5 | Main YCT355-4A | 55 | ★ |
| Auxiliary ZS50-1 | Auxiliary Y160M-6 | 7.5 |
| Ø2.5×50m | 5~6 | 0.62-1.5 | 3.5 | 3 set | Main ZS165-5 | Main YCT355-4A | 55 | |
| Auxiliary ZS50-1 | Auxiliary Y160M-6 | 7.5 |
| Ø2.8×43m | 7~8 | 0.62-1.5 | 3.5 | 3 set | Main ZS165-6 | Main YCT355-4B | 75 | ★ |
| Auxiliary ZS50-1 | Auxiliary Y160L-6 | 11 |
| Ø2.8×55m | 6~7 | 0.62-1.5 | 3.5 | 3 set | Main ZS165-6 | Main YCT355-4B | 75 | |
| Auxiliary ZS50-1 | Auxiliary Y160L-6 | 11 |
| Ø3×50m | 9~10 | 0.5-1.5 | 3.5 | 4 set | Main ZS165-3 | Main ZSN-280-11B | 125 | ★ |
| Auxiliary ZS50-1 | Auxiliary Y160L-6 | 11 |
| Ø3×60m | 7~8 | 0.5-1.5 | 3.5 | 4 set | Main ZS165-3 | Main ZSN-280-11B | 125 | |
| Auxiliary ZS50-1 | Auxiliary Y160L-6 | 11 |
| Ø3.2×53m | 10~12 | 0.4-1.5 | 3.5 | 3 set | Main ZL130-16 | Main ZSN4-280-11B | 125 | ★ |
| Auxiliary ZL50-10 | Auxiliary Y180L-4 | 22 |
| Ø3.2×64m | 8~10 | 0.4-1.5 | 3.5 | 3 set | Main NZS995-28VBR | Main ZSN4-280-21B | 160 | |
| Auxiliary ZL50-9-2 | Auxiliary Y180L-6 | 15 |
| Ø3.5×70m | 12~14 | 0.4-1.5 | 3.5 | 3 set | Main ZSY500-40 | Main ZSN-315-072 | 250 | |
| Auxiliary ZSY180-31.5 | Auxiliary Y180L-4 | 22 |
| Ø3.6×55m | 14~16 | 0.4-1.5 | 3.5 | 3 set | Main ZSY500-40 | Main ZSYN-315-072 | 250 | ★ |
| Auxiliary ZL65-16 | Auxiliary Y180L-4 | 22 |
| Ø3.8×58m | 18~20 | 0.4-1.5 | 3.5 | 3 set | Main ZSY500-40 | Main ZSN315-072 | 250 | ★ |
| Auxiliary ZL50-14 | Auxiliary Y180L-4 | 22 |
| Ø4.0×60m | 104 | 0.4-1.5 | 3.5 | 3 set | Main ZSY630-35.5 | Main ZSN4-355-092 | 315 | ★ |
| Auxiliary ZL65-16 | Auxiliary Y200L-4 | 30 |
Remark:According to the requirement, the kiln length and driving
system can be revised.
★ means the rotary kiln match with vertical pre-heater
Main spare parts is 1, sealing plate, 2. Oil sealing, 3. Nylon pin
4, Rubber block 5, Kiln head back plate.
