Φ4.6×( 10+3.5 )m Middle discharging raw mill

( Center driving )

. Technical performance ( Drawing number: NCM88 )

1.    Specification: Φ4.6×( 10+3.5)m

 ( Grinding chamber + Drying chamber )

2.    Grinding method: closed circuit middle discharging raw mill

3.    Production capacity: 190t/h ( Fineness of finished product:

12-14% residue from 80μm screen)

   4. Feeding material:   Fineness: ≤25mm ( 85% passed ),

                      Moisture: ≤5%

   5. Feeding air temperature: 350

   6. Dis charging material moisture: ≤1%

   7. Rotary speed: 15.1 r/min

   8. charging capacity of grinding medium: 180t ( max: 189t )

   9. Main motor:   YRKK1000-8,   Rated power: 3550kw,

Rated rotary speed: 745 r/min

Rated voltage: 6kv

   10. Main reducer: MFY355A

      Transmitted power: 3550kw,  Roted rotary speed: 745r/min,

      Output rotary speed: 15.1r/min, Lubricating device: XYZ400GZ

11. Slow driving device: MJB710

12. Thin oil station for lubricating sliding shoe bearing:

   Model: NC-63S High & Low pressure thin oil station

   Quantity: 2Pcs

   Main parameter:

   High pressure pump: Y110L1-4, Power: 2.2×2kw, 2.5L/min, 32Mpa

       Low pressure pump: Y112M-6, Power: 2.2×2kw, 63L/min

     13. Cooling water consumption for sliding shoe bearing: 2×3.5m3/h

     14. Weight of equipment: 304t ( excluding motor, reducer and grinding medium )

. Weight of parts and scope of supply

1.    Feeding device ( Including support ): 4930kg

2.    Sliding shoe bearing ( 2 sets ):   Total weight:  27600kg

Including:

Supporting bushing body: ZG270-500       3920kg

Babbitt alloy ZSnSb11Cu6                340kg

Convex and concave sphere  34CrNi2MoA  720kg

Sphere seat ZG310-570                   3980kg

Bottom plate Q235-B  Thickness: 85mm     6120kg

Supporting roller 45                      3680kg

3.    Rotary part                             24400kg

Including:

Shell                                   103000kg

Max overall size of shell:

Φ4990 (Max.OD ) ×13505 ( Total length)mm

        Mainly including

        Steel plate for shell Q235-C  38520kg; Thickness: 84  19800kg

        Sliding ring of sliding shoe 20g-Z25, Thickness: 95    19420kg

        Web plate of sliding ring 20g; Thickness: 90          18530kg

        Shell of drying chamber Q235-C; Thickness: 22       8840kg

        Wear resistant casting

ZG42Cr2MnSi2MoRe ( ak≥49J/cm2;  51-57HRC )     86300kg

        ZG230-450                                      5700kg

        ZG340-640                                     4050kg

     4. Discharging cover                                 5260kg

     5. Materials returning device                          16500kg

     6. Lubricating system for sliding shoe bearing ( 2sets )      3980kg

     7. Main motor YRKK1000-8 ( Jiangxi Motor Plant )

       Rated rotary speed: 745r/min;    Rated power: 3550kw;

Rated voltage: 6kv;   Weight: 31000kg

     8. Base of main motor

       Weight of weld assembly: 1460kg

     9. Lubricating device for main motor ( purchased otherwise )

        Model: XYZ-16

     10. Reducer MFY355A ( Nanjing High-speed Gearbox plant )

        Transmitted power: 3550kw,  Rated rotary speed: 745r/min;

        Output rotary speed: 15.1 r/min,  Lubricating device:XYZ400GE

      11. Slow driving device: MJB710  45kw   Speed ration: 193.3

         Weight: 5000kg

       12. Diaphragm coupling

ball mill/Middle discharging raw mill