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