φ3.4×(6+3)m Coal mill
(Edge driving)
一、Technical parameters & performances of cement mill
1、Sepc. :φ3.4×6+3m
2、Capacity: 30-38t/h (mill inlet raw coal grain size ≤25mm,residue 3-5%, mill outlet coal powder fineness 80μm, mill inlet raw coal moisture content≤12%, mill outlet coal powder moisture content≤1%, mill inlet air temperature <350℃, mill outlet air temperature: 60-80℃)
3、Mill rotating speed:17.5r/min
4、Grinder load:70t
5、Main motor: (Jiangxi Motor Factory)
Type:YR800-8/1180 Power:800kW Rotating speed:740r/min
Voltage:6KV
6、 Main reducer (Sichuan Reducer Factory)
(1) Type:JDX710
(2) Transmission power:800KW
(3) Transmission ratio:I=6.3
7、 Auxiliary motor
(1) Type:YEJ200L2-6
(2) Motor power:22kW
(3) Motor rotating speed: 970r/min
(4) Voltage:380V
8、 Auxiliary reducer
(1) Type:ZSY280
(2) Speed ratio:I=100
9、 Cooling type: water cooling
10、Lubrication type of main bearing: thin oil station (GYXZ-40A)
(1)Low pressure system
Flow rate:40L/min Oil supply pressure:0.4MPa
Oil supply temperature:40±3℃
Motor:Y112M-6 2.2kW
(2)High pressure system
Pump type:2.5MCY14-1B
Flow rate:2.5L/min
Oil supply pressure:32MPa
Motor:Y112M-6 2.2kW
(3) Other performances
Cooling water consumption:3.6m3/h
Heater power:3kW×3
Working media:N22-N320
11、 Equipment weight:-t
二、 Main spare parts & material quality
1、 Main motor YR800-8/1180 800kW 6KV
2、 Main reducer JDX710
3、 Bull gear:ZG310-570(ZG45)
4、 Pinion:42CrMo( Hardening & tempering)
5、 Shell Q235-B
6、 Hollow shaft ZG230-450(ZG25)
7、 Liner & diaphragm: Chroinum alloy
8、 Main bush: Lower base HT250
Bush body HT250
Bush liner( Barritt ZchSnSb11-6)
9、 Thin oil station GYXZ-40A
10、 Control cabinet & start cabinet
三、 Supply range
1、 Rotary section |
1 set |
2、 Feed device |
1 set |
3、 Main bearing device |
2 sets |
4、 Discharge device |
1 set |
5、 Liner & diaphragm |
1 set |
6、 Bull gear & pinion |
1pc for each |
7、 Main motor |
1 pc |
8、 Main reducer |
1 pc |
9、 Auxiliary motor & auxiliary reducer |
1pc for each |
10、Thin oil station |
2 pcs |
11、Control cabinet & start cabinet |
1 pc |
12、Coupling |
1 set per pc |
Jiangsu Pengfei Group Co., Ltd |