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φ3.8×13m Cement Mill (Central driving) 一、Technical parameters and performances of cement mill 1、Specification:φ3.8×13m 2、Capacity: 65-70t/h (closed circuit, 42.5 normal Portland cement, inlet grain size ≤25mm,inlet moisture content≤0.5%,inlet temperature≤50℃, air speed inside of...


φ3.8×13m Cement Mill

(Central driving)

一、Technical parameters and performances of cement mill


2、Capacity: 65-70t/h (closed circuit, 42.5 normal Portland cement, inlet grain size ≤25mm,inlet moisture content≤0.5%,inlet temperature≤50℃, air speed inside of mill≥0.5m/s,Blaine≥350m2/kg,Configures O-Sepa separator)

3、Rotating speed of mill:17r/min

4、Grinder load:186t(max)

5、Main motor:(Jiangxi Motor Factory)

Type:YR2500-8/1730  Power:2500kW  Rotating speed:740r/min


6、Main reducer:

(1) Type:JS130-C-F1

(2) Transmission power:2500KW

(3)Output rotating speed:17r/min

7、Slow speed driving device

(1) Type:JMS660

(2) Motor power:37kW

(3) Motor rating speed 970r/min

(4) Transmission ratio:98.58:1

8、Diaphram coupling


9、Oil station (configures reducer)

(1) Nominal flow rate:350L/min

(2) Oil pump type:XBZ-350

(3) Motor power:11kW

(4) Motor rotating speed:1460r/min

(5) Cooling area:20m2

(6) Cooling water volume:32t/h

(7)Heater power:4×6=24

10 Cooling types: water cooling

11、Lubrication station(GYXZ-63A)

(1)Low pressure system

Flow rate:63L/min   Oil supply pressure:0.4MPa

Oil supply temperature:40±3℃

Motor:Y112M-6  B35  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:5.7m3/h

Heater power:3kW×4

Working media:N22-N320

12、 Equipment weight:320t

二、 Main spare parts and material quality

1、 Main motor  YR2500-8/1730   2500kW   10KV

2、 Main reducer JS130-C

3、 Shell Q235-B  δ=40mm

4、 Hollow shaft  ZG230-450(ZG25)

5、 Main bush: Lower part HT250

Bush body HT250

Bush liner( Babbitt Metal ZchSnSb11-6)

6、 Liner:ZGMn13Cr2( 1st chamber)

ZGMn13-A( 2nd, 3rd chamber & diaphragm, etc. )

7、 Thin oil station  GYXZ-63A

8、 Control cabinet & start cabinet

三、 Supply range      

1、 Rotary section

1 set

2、 Feeding device


3、 Main bearing device


4、 Discharge device


5、 Liner & diaphragm


7、 Main motor


8、 Main reducer


9、 Thin oil station

2 cs

10、 Control cabinet & start cabinet


11、 Coupling

1 set per pc

12、 Base of motor & reducer

1 set per pc

dia. 4.2*13m Cement mill           

1.Driving method: Center driving

2.Production method: Closed Circuit

3.Production capacity: 75-80 t/h (Feeding size of clinker: ≤25mm,synthetical moisture:≤0.5%, Feeding temperature: ≤50 ℃, )

Wind speed in the mill: ≥0.5 m/s,

Fineness of finished products: 300-350 m2/kg.)

4.rotary speed of mill: 16.3r/min

5.Effective volume of mill: 143m3

6.Charging capacity of mill ball: 191t

7.cooling water consumption for main bearing: 2×2 t/h

8.Thin oil station ( Equipping main bearing )

① Model: XGD-A2.5/140

② Cooling water consumption: 2.4m3/h

③ High-pressure oil pump: Flow: 2.5L/min Pressure: 32Mpa Motor: Y112M-6  Power: 2.2kw

④Low-pressure oil pump: Flow: 40L/min  Pressure: 0.6Mpa Motor: Y100L-4   Power: 3kw

⑤Electric heater: SRY2-220/4  Power:3×4kw

⑥Control box of thin oil station connecting with DCS commuication

9.Model of main motor: YRKK900-8  Power: 2800kw

Rotary speed: 745 r/min    Voltage: 10kv

Protection degree: IP44

Model of oil station: XRZ-10

Cooling water consumption: 0.6m3/h

Flow : 10L/min     Pressure:0.4Mpa

Motor: Y801-4B    Power: 0.55kw

Power of electric heater: 2kw

10.Main reducer JS140-A ( Sichuan Gearbox Plant )

Transmitted power: 2800kw       

Input rotary speed: 740r/min 

Output rotary speed: 16.3r/min

11.  Model of slow-speed driving device: JMS660

Motor power: 37kw   Rotary speed of motor: 740r/min

12.  oil station ( Equipment main reducer )

①Nominal floe: 350L/min

②Model of oil pump: XBZ-350

③Motor power: 11kw

④Rotary speed of motor : 1460 r/min

⑤Cooling area: 20m3

⑥Cooling water consumption : 32t/h

⑦Power of heater: 4×6=24kw

φ4.6×14m Cement Mill 

Technical Performances of φ4.6×14m Cement Mill(Central Driving)

A. Technical Performances

1. Specification: Ф4.6×14m

2. Grinding method: closed circuit(with O-sepa separator)

3. Capacity:  140-150t/h(inlet granularity ≤25mm,inlet comprehensive moisture content ≤1%,inlet temperature ≤60℃,finished product fineness ≥3500cm2/g)

4. Rotating speed: 15.1r/min

5. Grinder load: 280t(Max.290t)

6. Main motor: YRKK1000-8

Rated power: 4500kW  Rated rotating speed: 745r/min, Rated voltage: 10KV

7. Main reducer:  JS160-C

Transmission power: 4500kW,rated rotating speed: 745r/min,output rotating speed: 15.1r/min

8. Slide shoe bearing lubrication thin oil station:

Type: XGD-A2.5×2/80

QTY: 2pcs

Main parameter:

High pressure pump: Y112M-6 

Power: 2.2×2kW    2.5L/min   32MPa

Lower pressure pump:  Y112M-4 

Power: 3×3kW   80L/min

9. Slide shoe bearing cooling water consumption: 2×4m3/h

10. Equipment weight: 350t(except motor, reducer and grinder)

B.  Weight of spare part & supply range

1. Loading device (including bracket) 5930kg

2. Slide shoe bearing (2sets) total weight: 35900kg


Supporting bush: ZG270-500 5800kg

Babbitt alloy ZSnSb11Cu6  500kg

Concave sphere, convex sphere   34CrNi2MoA   1050kg

Sphere block  ZG310-570  4500kg

Bottom plate  Q235-B  Thickness 85mm  7200kg

Supporting idler  45 5600kg

3. Rotary section 287000kg


Shell 103000kg

Mainly including:

Shell steel plate Q235-C  115000kg

Slip ring of slide shoe 20g-Z25  19800kg×2

Web of slip ring 20g  8950kg×2

Liner  Chrome alloy

4. Discharging cover 17600kg

5. Lubrication system of slide shoe bearing (2sets)  3980kg

6. Main motor  YRKK1000-8  

Rated rotating speed: 745r/min,rated power: 4500kW, rated voltage: 10KV

7. Reducer: JS160-C

Transmission power: 4500kW,rated rotating speed: 745r/min,output rotating speed: 15.1r/min

Main reducer system weight: 110000kg 

8. Total equipment weight: 350000kg(except grinder & driving device)

Ф5×15 m Cement Mill

A. Technical Performance

Mill specification: Ф5×15 m

Grinding mode: closed circuit (90% clinker, 5% gypsum, 5% limestone)

Capacity:   150 t/h  ( inlet material: ≤25mm(90% passing)

Rotating speed:   14.5 r/min

Loading of grinder: 350 t

Installed power: 6300 kW

Driving: central driving

Equipment weight:  **** t (except main motor, main reducer, lubrication station of slide shoe)

B. Weight & material of various parts

1. Rotary section: total weight: 387840㎏

Material of shell: 20g, thickness of steel plate: 62mm

Material   slide ring of loading port and discharging port: 20g-Z25, 20g

Grate plate of double diaphgram    material: chrome alloy cast steel

Diacharging grate plate  material: chrome alloy cast steel Liner  material: chrome alloy cast steel

2.Support device of loading slide shoe

Supporting bush

Material of bush: ZG270-500  Material of bush liner: ZSnSb11Cu6

Concave sphere, convex shpere   Material: 34CrNi3MoA

Bottom plate    Material:Q235B

Supporting idler  Material: 45

Slide shoe cover  Material; structural part

3. Supporting device of discharging slide shoe

Supporting bush

Material of bush body: ZG270-500   Material of bush liner:ZSnSb11Cu6

Concave sphere, convex shpere       Material:34CrNi3MoA

Bottom plate                  Material: Q235B

Supporting idler      Material: 45

Fixed block          Material:HT200

Slide shoe cover        Material: structural part

4. Loading device      Material: structural part

5. Discharging cover    Material: structural part  

6. Erection tool of slide shoe    

7. 7. Lubrication station of slide shoe bearing

Specification: GDRH-8/125 High pressure & low pressure thin oil station  2pcs

High pressure pump motor type: ABB motor    2pcs

Electromagnet    220V 5A   one point

High pressure pump motor power (Kw): 5.5

Nominal pressure of high pressure pump (Mpa):  31.5

Nominal flow rate of high pressure pump (L/Min): 8

Low pressure pump motor type:  ABB motor  2pcs

Low pressure pump motor power (Kw): 5.5

Nominal pressure of low pressure pump (MPa):  1

Nominal flow rate of low pressure pump (L/Min): 125

Electrical heater power(K):4KwX3pcs

Oil box volume(M3):2.5

Filtering accurancy(mm): 0.08

Media viscosity(C.S.T):N680

Media temperature(℃): 40±3

Return oil temperature(℃):≤65

Cooling area(M2):20

Cooling water temperature(℃):≤33

Cooling water pressure(MPa):0.4

Cooling water consumption(M3/h): 11.25

Cooling water consumption: slide shoe bearing cooling water consumption(M3/h):          

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