Φ4.0×5.4m Overflow ball mill

Introduction

Pengfei group has developed large-scale autogenous mill, semi autogenous mill, overflow mill and air swept mill by increasing cooperation with scientific research institutions for many years. Widely used in metallurgy, mining, cement, power and other industries. "Pengfei" brand ball mill takes full account of the operating conditions of users, improves the internal conditions of the mill continuously according to the partition plate and discharge grate plate, provides new liner plate as required, adjusts the mill speed, optimizes the gear design and bearing pad lubrication parameters, increases the stability and service life of the mill, and improves the grinding efficiency.

Technical

I. Technical performance
1. Specification: φ4.0×5.4m
2. Production capacity: According to the process condtion
3. Mill rotating speed: 16.36r/min
4. Grinding media load: 83t
5. Slurry moisture content: 25-35%
6. Main motor: Xiangtan motor
Model: YRKK560-6   Power: 1250kW  Rotating speed: 991r/min
Voltage: 10KV   Biaxial stretching (Imported bearing)
7. Main reducer: NGC Transmission or Boneng reducer
Transmitted power: 1250kW   Ratio: 7.658
8. Auxiliary motor:
Model: YEJ180L-4  Power: 22kW  Speed: 1470r/min Voltage: 380V
9. Auxiliary reducer:
Model: NGW123-00  Ratio: 281.4:1  Output speed: 5.22r/min
10. Cooling water consumption of main bearing: 2×3m3/h
11. Cooling water consumption of reducer: 3m3/h
12. Main bearing lubrication: thin oil station (GDR-63)
 (1) Low pressure system
Flow: 63L/min     Charge oil pressure: 0.4MPa  
Pump type: CB-B63    Oil supply temperature: 40±3℃
Motor: Y112M-6     B35     4kW
(2) High pressure system
Pump type: 2.5MCY14-1B       Flow: 5L/min
Charge oil pressure: 32Mpa      Motor: Y112M-6  4kW
(3) Others
Oil tank capacity: 1m3     Filtration accuracy: 0.08mm  Filter area: 0.19m2
Cooling area: 5m2
Consumption of cooling-water: 3.6m3/h
Power of heater: 3kW×3
Working medium: N22-N320
13. Girth gear lubrication: Fog lubrication GPZ-Z (with air compressor)
14. Mill control cabinet: High pressure start cabinet, liquid resistance cabinet, hydraulic station, oil station control cabinet, and PLC control
15. Equipment weight: 200t (Exclude grinding media)
II. Scope of supply
i. Rotary part
1. Shell body       16Mn    δ=32mm            1pc
2. End cover:   ZG230-450                      2 pcs
3. Hollow shaft head    ZG230-450     2 pcs
4. Girth gear ZG42CrMo HB=180-210       1 set
4. Liner   ZGMn13-4/ chromium molybdenum alloy        1 set
5. Lining-plate bolt                                 1 set
ii. Main bearing part
1. Bearing bush   chPbSb16-6-22 pcs
2. Bearing seat    Assembly               2 sets
3. Thin oil station  GDR-63  1 set
iii. Transmission part
Pinion device:
1. Pinion     40CrMo  HB=210-250               1pc
2. Pinion shaft   42CrMo      HB=217-255             1pc
3. Bearing support      Assembly                 1 set
Transmission:
1. Main motor  YRKK560-6  1250KW 10KV (rolling bearing) 1pc
2. Main reducer  i=7.658                           1pc
3. Auxiliary reducer   NGW123                     1pc
4. Auxiliary motor   YEJ180L-4                     1pc
5. Coupling     Assembly            1 set
6. Transmission base       Assembly   1 pc
iv. Girth gear cover    Assembly             1pc
v. Feeder unit (with trolley mechanism feed tube QT600)      1 set
vi. Discharge device  Assembly      1pc
vii. Girth gear lubrication: Fog lubrication GPZ-Z (with air compressor）  1 set
viii. Control cabinet: High pressure start cabinet, liquid resistance cabinet, hydraulic station, oil station control cabinet, and PLC control              1 set
ix. Hydraulic jacking device (Two brackets, jack)        1 set
x. Foundation bolt, shim plate, etc.                       1 set