φ3.8×(6.5+3)m Technical performances of air swept coal mill
一、Technical parameters
Sepc. : φ3.8 x (6.5+3)m
Length of drying chamber：3m
Length of grinding chamber：6.5m
Capacity: 40t/h
Inlet grain size：≤25mm
Fineness of product: blind coal: R80μm Residue ≤5%
Material moisture content：Mill inlet≤10 %；Mill outlet≤1 %；
Mill rotating speed: 16.7r/min
Mill inlet air temperature：300℃（max350℃）
Mill outlet air temperature：60-100℃
Cooling water consumption
Cooling water consumption of main bearing：2 m3/h；
Cooling water consumption of slide shoe bearing：3.5 m3/h；
Cooling water consumption of thin oil station of main bearing：1.5 m3/h；
Cooling water consumption of thin oil station of slide shoe bearing：3.8 m3/h；
Cooling water consumption of lubrication station of main reducer：5.7 m3/h；
Cooling water consumption of lubrication station of main motor：1 m3/h；
Transmission device
Main motor
Type：YRKK7101-8 （Protection class：IP 54； Insulation class：F ）
Power: 1250 kW
Rotating speed:742 r/min
Voltage：10 KV
Main reducer：
Type： MBYX800
Shaft location: (supply with lubrication station)
Speed ratio： I= 5.6
Slow driving reducer
Type： YNS620-90ⅡR
Power：22
Speed ratio：90
Reducing motor (for slow driving)
Type： Y200L2-6
Power: 22kW
Rotating speed: 970r/min
Voltage： 380 V
High pressure start & lubrication station (for discharge port of hollow shaft)
Type：NC-25S
Motor Y100L1-4 (High pressure oil pump for starting) 1pc
Power: 22 kW
Voltage：380V
Motor Y90L-4 (for low pressure oil pump of lubrication station) 2pcs
Power: 1.5 kW
Voltage：380 V
Electrical heater (for high pressure start & lubrication station)
Power: 2kW×3
Voltage： 220 V
High pressure start & lubrication station: (slide shoe bearing of feed port)
Type：NC-63S
Motor Y100L1-4 (for high pressure oil pump start) 2pcs
Power: 2.2 kW
Voltage：380 V
Motor Y112M-6 (for low pressure oil pump of lubrication station) 2pcs
Power: 2.2 kW
Voltage：380V
Electrical heater (for high pressure start & lubrication station)
Power: 3kW×4台
Voltage： 220 V
二、Material quality of main parts
1、Shell Q235-B δ34mm
2、Main motor YRKK7101-8 10KV
3、Main reducer MBYX800
4、Hollow shaft：ZG230-450
5、Pinion：35CrMo
6、Pinion shaft：35CrMo
7、Supporting：
Bush body Cast steel
Bush liner (Barritt ZChSnSb11-6)
Base: cast steel
8、Liner: cast steel alloy
三、Supply range:
Seller supply full set equipments except grinder & main control
|
1、Rotary section |
1 set |
|
2、Feed device |
1 set |
|
3、Main bearing device |
1 set |
|
4、Slide shoe bearing of sliding end |
1 set |
|
5、Discharge device |
1 set |
|
6、Liner & double diaphragm device |
1 set |
|
7、Main motor YRKK7101-8 1250KW 10KV |
1 pc |
|
8、Main reducer MBYX800 |
1 pc |
|
9、Auxiliary driving |
1 set |
|
10、Thin oil station GYXZ-63A |
2 pcs |
|
11、Coupling |
1 set per pc |
|
12、Anchor bolts |
1 set |
