Φ3.8×（7.5+1.5）Raw mill
Ⅰ. Technical parameter & technical performance
1. Specification: Φ3.8×( 7.5+1.8) m
2. Model: MHB3875
3. Production capacity 80-90t/h ( closed circuit, 10% residue from 4900 screen, Medium hard lime stone,
Feed size:≤25mm, Feedsynthetical moisture: ≤5%,
Feeding hot air: 300-330℃,Discharging moisture: ≤0.5%,
Discharging air temperature:100℃.)
4. Rotary speed of mill: 16.7r/min
5. Charging capacity of grinding medium: 100t
6. Main motor
Model: Yr1400-8/1430, Power: 1400kw, Voltage: 6000v/10000v
7. Main reducer: JD×90 i=7.1111
8. Auxiliary motor
Model: YEJ200L-6, Power: 22kw, Rotary speed: 970r/min
9. Auxiliary reducer
Model: ZSY280-Ⅰ/Ⅱ, Speed ratio: i=100
10. Cooling method: Water cooling
11. Lubricating method: Thin oil station ( GYXZ-63A)
(1) Low pressure system
Flow: 63L/min, Oil supply pressure: 0.4Mpa,
Oil supply temperature:40±3℃, Motor: Y112M-6 B35 2.2kw
(2) High pressure system
Pump model: 2.5MCY14-1B, Flow: 2.5L/min
Oil supply pressure: 32Mpa, Motor: Y112-6 2.2kw
(3) Other performance
Cooling water consumption: 5.7m3/h
Heater Power: 3kw×4
Working medium:N22-N320
12. Total weight of equipment: 200t
Ⅱ. Materials and manufacturers of main parts & components
1. Main motor: YR1400-8/1430 1400kw 6000v/10000v
Jiangxi Motor plant
2. Main reducer: JD×90 i=7.1111 Sichuan Gearbox Plant
3. Auxiliary motor: YFJ200L-6 22kw 970r/min
Dazhong Motor Plant
4. Auxiliary reducer: ZSY280-Ⅰ/Ⅱ i=100 Tailong Reducer Plant
5. Shell: Material: Q235-B, Plant thickness δ=28
Jiangsu pengfei Group
6. Hollow shaft: ZG230-450 ( ZG25 ) Jiangsu Pengfei Group
7. Bull gear: ZG310-450 ( ZG25 ) Jiangsu Pengfei Group
8. Pinion：40Cr ( Quenching and tempering ) Jiangsu Pengfei Group
9. Lining board and partition plate : Medium chrome alloy
Jiangsu Pengfei Group
10. Thin oil station: GYXZ-40A Jiangsu Pengfei Group
11. Control cabinet and starting cabinet Jiangsu Pengfei Group
Ⅲ. Scope of supply
1. Rotary part 1set
2. Feeding device 1set
3. Main bearing device 2set
4. Discharging device 1set
5. Lining board and partition plate 1set
6. Driving device ( bull gear, pinion and housing ) 1Unit/set
7. Main motor 1Unit
8. Main reducer 1Unit
9. Auxiliary motor 1Unit
10. Auxiliary reducer 1Unit
11. Thin oil station 2Pcs
12. Control cabinet 1Unit
13. Starting cabinet 1Unit
14. Shaft coupling 1Unit/set
15. Base of motor and reducer 1Unit/set
