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Ball mill
    Publish time 2017-07-28 21:07    
Ball mill
The main part of ball mill is a shell which is assembled on the bearing with low revolution speed. This ball mill is driven by motor through reducer and surrounding gear which can reduce the speed. Or this ball mill can be driven by synchronous motor with low speed. After gear reduces the speed, transmission assembly can rotate. There are many grinding mediums-ball- in the ball mill. Grinding mediums can be lifted to the certain height, and then thrown down or drain off under the effect of centrifugal force and friction. The materials are continuously feed into the shell, and then crushed by moving grinding medium, at last the product can be discharged by the force of overflow and continuously feeding. All the materials can go to the next process.





Performance Parameter Table of MQS Wet Grate Ball Mill

Model

MQS

MQS

MQS

MQS

0909

0918

1212

1224

1515

1530

2122

2130

Drawing No.

K9272

K9273

K9261

K9260

K92513

K92514

K9245

K92411

Diameter (mm)

900

1200

1500

2100

Length (mm)

900

1800

1200

2400

1500

3000

2200

3000

Rotation

 Left

Right

Medium Load (t)

0.96

1.92

2.4

4.8

5

10

15

20

Capacity(t/h)

0.22-1.07

0.44-2.14

0.17-4.0

0.4-5.8

1.4-4.3

2.8-9

According to the working conditions



Main Motor

Model

Y225S-8

Y225M-8

Y250M-8

Y315S-8

JR115-8

JR125-8

JR128-8

JR137-8

Power(kw)


17

22

30

55

60

95

155

210

Rotational Speed(r/min)


720

730

725

730

735

Voltage(V)


380

380

380

Outline Dimension


Length(m)

4.75

5

5.2

6.5

5.77

7.6

8

8.8

Width(m)

2.21

2.28

2.8

3.3

4.7

Height(m)

2.05

2.54

2.7

4.4

Total Weight(t)

4.62

5.34

11.4

13.43

13.9

17.4

42.2

45

Remark

The weight of motor is not concluded



Performance Parameter Table of MQS Wet Grate Ball Mill

Model

MQS

MQS

MQS

2721

2727

2736

2750

3230

3236

3245

3639

3645

3650

3660

Drawing No

K9235

K3236

K9237

SS3110

K9225

K9226

K9221

K9216

K9218

K92112

K9214

Diameter(mm)

2700

3200

3600

Length(mm)

2100

2700

3600

5000

3000

3600

4500

3900

4500

5000

6000

Rotation

Left   Right

Left    Right

Left    Right

Medium Loading(t)

23

29

39

48

46

58

65

75

90

96

120

Capacity(t/h)

According to working condition

95-110

According to working condition

230

Motor

Model

JR147

-8

JR148

-8

TDMK

400

-32

TDMK

500

-32

TDMK

5400

-36

TDMK

630

-36

TDMK

800

-36

TDMK

100

-36/

3600

TDMK

1250

-40

TDMK

1400

-40/

3250

TDMK

1600

-40

Power

(kw)

260

310

400

500

500

630

800

1000

1250

1400

1600

Speed

(r/min)

735

187.5

167

150


Voltage

(V)


3000

6000

10000

6000

Dimension


 

Length(m)

9.28

9.9

11.9

13.18

13.7

14.3

12.7

15

15.2

17.6

17

Width(m)

5.5

5.7

5.67

6.76

7.2

7.75

8.8


Height

(m)


4.5

4.4

4.5

5.1

5.2

5.7

6.3

6.5

Total Weight(t)

62

66

77

73.7

107.7

114.7

126

145

159.7

158

189

Remark

The weight of motor is not excluded


Performance Parameter Table of MQS Dry Grate Ball Mill

Model

MQG

MQG

MQG

MQG

MQG

MQG

0909

0918

1212

1224

1515

1530

2122

2714

Drawing No

K9270

K9271

K9263

K9262

K92510

K92511

K9241

K2111

Diameter(mm)

900

1200

1500

2100

2700




Length(mm)

900

1800

1200

2400

1500

3000

2200

1450

Rotation

Left/Right

Medium Loading(t)

0.96

1.92

2.4

4.8

4

8

16

3

Capacity(t/h)

0.16-0.8

0.33-1.6

0.16-2.6

0.26-6.15

1-3.5

2-6.8

5-29

3

Motor

Model

Y225S-8

Y225M-8

JQO282-8

JQO292-8

JR115-8

JR125-8

JR128-8

Y280M-6

Power(kw)

18.5

22

30

55

60

95

155

55

Speed

(r/min)

730

725

730

980

Voltage(V)

380

220/380

380

Dimension


Length(m)

3.12

3.62

5.1

6.5

5.655

7.48

8.07

6.315

Width(m)

2.21

2.23

2.8

3.26

3.3

4.839

3.562

Height(m)

2.02

2.5

2.7

3.794

4.519

Total Weight(t)

4.39

5.36

10.5

12.545

13.48

18

46.9

22.6

Remark

The weight of motor is not excluded.



MQY Wet Overflow Ball Mill


Model

MQY

0918

MQY

1224

MQY

1530

MQY

MQY

2460

MQY

2721

MQY

2130

2136

2736

2740

Drawing No

K9274

K9264

K92519

K9247

K2112

SS3125

K9234

K9238

K92310

Diameter(mm)

900

1200

1500

2100

2400  

2700

2700

Length(mm)

1800

2400

3000

3600

6000 

2100

3600

4000

Rotation

 Left         Right

Medium Loading(t)

1.66

4.8

8

18

20

39

24

39

38

Capacity(t/h)

0.37-1.8

0.36-5.18

According to working condition

Motor

Model

Y225S

-8

Y315S

-8

JR125

-8

JR137

-8

JR1410

-8

TDMK

400

-32

JR

1410

-8

TDMK

400

-32

TDMK

400

-32

Power(kw)

22

55

95

210

400

280

400

Speed

(r/min)

730

725

735

187.5

740

187.5

Voltage(V)

380

10000

380

6000

Dimension


Length(m)

5.08

6.63

7.44

8.8

9.3

10.98

9.4

11.4

11.85

Width(m)

2.3

2.8

3.34

4.7

5.67

5.6

5.7

5.667

Height(m)

2.02

2.5

2.76

4.4

4.5

4.7

4.5

4.496

Total Weight(t)

5.4

12.24

16.28

43.2

46.8

39.4

63.9

70

78.8

Remark

The weight of motor is not excluded.



MQY Wet Overflow Ball Mill


Model

MQY

MQY

MQY

3245

3254

3645

3650

3660

3690

4060

4561

5064

Drawing No

K9227

K92211

K9217

K92111

K9219

K92113

K9280

K9281

K9291

Diameter(mm)

3200

3600

400

4572

5030

Length(mm)

4500

5400

4500

5000

6000

9000

6000

6100

6400

Rotation

Left  Right

Medium Load(t)

61

73

76

86

102

163

113

151

218

Capacity(t/h)

According to working condition

Motor

Model

TDMK

630

-36

TDMK

1000

-36/

2600

TDMK

1000

-36/

2600

TDMK

1250

-40/

3250

TDMK

1250

-40/

3250

TDMK

1800

-30/

2600

TDMK

1500

-30/

2600

TDMK

2200

-32

TM

2600

-30

Power(kw)

630

1000

1250

1250

1800

1500

2200

2600

Speed 

(r/min)

167

150

200

200

187.5

200

Voltage (V)

6000

Dimension


Length (m)

14.6

15.8

15

17.157

17

19..187

16.555

16.563

14

Width(m)

6.7

7.2

7.755

7.7

9.793

8.418

9.213

8.3

Height(m)

5.2

5.1

6.3

6.326

6.3

7.493

7.429

8.132

9

Total Weight (t)

112

121

135

145

154

212

213

272

290

Remark

The weight of motor is not concluded


Weight of Each Parts(kg)

Model

Feeding

Charging

Shell

Bearing

Transm

-ission

Discharge

Foundation

Electrical

Maximum Weight


MQG0909

198

604

1082

2x311

887

618

110

50

Gear 480

MQG0918

2040

123

Shell 585

MQS0909

230

1082

562

110

Gear 480

MQS0918

2040

123

Shell 585

MQY0918

633

MQG1212

180

1374

2277

2x847

1659

2721

221

100

Discharge Cover 1550


MQG1224

4238

257

MQS1212

627

1426

2277

2x853

2475

221

MQS1224

4238

257

MQY1224

1710

Discharge Cover 1010


MQG1515

160

2030

3626

2x890

2130

2710

296

250

Discharge  1320

MQG1530

6918

378

Shell 1980

MQS1515

660

2110

3626

2590

296

Discharge Cover 1320


MQY1530

6918

378

Shell 1980

MQY1530

70

2065

6600

2270

432

MQS2122

1870

5873

10230

2x2812

6862

7623

233

150

Gear

3950

MQS

MQY

2130

1870

13770

Gear

3950

MQY2136

1461

17063

2x3200

5913

Shell4510

MQS2721

2690

9930

14900

2x1990

9150

12000

3240


Discharge Cover

6300

MQS2727

18700


MQS2736

24700

11900


Shell7580

MQY2736


11200

2x2700

2660


MQY2740


26800


Shell8250

MQS3230

5350

18380

27135

2x2700

15200

25155

3208


Discharge Cover

13000

MQS3236

32160


MQY3245

 

18300

39580

2x3400

19300

3628

 

Shell12760

MQY3254

 

47255

 

Shell14930

MQS3639

6690

24300

42700

2x3400

17500

33600

3700

 

Discharge Cover

17000

MQS3645

49300

17700

3860

 

MQS3650

56600

19600

3550

 

Shell18000

MQY3645

 

23400

49300

17500

24400

3700

 

Shell14700

MQY3650

5120

24300

56600

17700

3520

 

Shell18000

MQY3660

 

23400

67500

3860

 

Shell21400

MQY5064

 

34800

149900

2x6040

48980

37130

4370

 

ShellⅠ34700


 




MQBall mill is introduced
      Ball mill which diameter is 900-2700 uses rolling bearing. Other ball mill which diameter is 3200mm or bigger than it uses totally closed 120ºself aligning “rocker” bearing which material is Babbitt metal with high percent of lead and low percent of Sin. There is a cooling water pipe under this bearing. It has static pressure structure, and is lubricated by high-low pressure lubrication station. Main bearings are sealed by rubber and lubricating grease. This kind of ball mill uses the technology of radial seal and automatic lubrication.
     

Large grinding machine equipped with slow driving device can make the host 0.15 r/min speed, for turning, repair, or loose load, at the same time equipped with jacking jacking device for repair with rotary department.

Ball mill is the material being broken, and then to smash the key equipment. It is widely used in cement, Portland products, new building material, refractory material, fertilizer, black and non-ferrous metal ore dressing and glass ceramics production industry, of all kinds of ores and other materials may be grinding of dry or wet grinding. Ball mill is suitable for all kinds of ores and other materials, is widely used in mineral dressing, building materials and chemical and other industries, can be divided into dry type and wet type two kinds of grinding way. According to the row of ore in different ways, can be divided into grid type and overflow type two kinds.

The working principle of the ball mill

Ball mill in the aerated concrete raw material preparation equipment is the most important in ball mill, he used to lime, gypsum, sand, slag, etc material grinding. Material only after grinding fineness and to the requirements can be fully mixed interaction, MQ principle of ball mill to make the products reach intensity, grinding is an important procedure in aerated concrete production, grinding process of large power consumption, ball mill is generally aerated concrete motor capacity of the largest equipment in the factory.

Ball mill is a horizontal cylinder, in and out of the hollow shaft and top parts, cylinder for long cylinder, cylinder is equipped with the grinding body, cylinder for steel manufacturing, fixed with steel plate and cylinder, grinding medium, generally for the steel ball, and according to the different diameter and a certain proportion into the cylinder, the grinding medium steel section is also available.

With the particle size of grinding material selection, material from the mill feed (hollow shaft into the cylinder body, when the ball mill simplified turning, grinding medium because of inertia and centrifugal force effect, the effect of friction, making it near the post on the cylinder liner was taken away by cylinder, when was brought to a certain height, be cast down by its own gravity, the whereabouts of the grinding medium like projectile of cylinder body of the material to break. Material composed of feeding device through the hollow shaft spiral evenly into the mill first warehouse, the warehouse has ladder plate or corrugated plate, built in different specifications of steel ball, cylinder rotate falling after the ball to a certain height, the centrifugal force is generated on the material and grinding effect. Material in the first warehouse after reaching coarse grinding, by monolayer partition storehouse board into the second warehouse, the warehouse with a flat plate, inside the steel ball, will further grinding material. Powder through the unloading Bi board, finish grinding homework.

Cylinder in the process of turning, grinding medium has slipped phenomenon, in the process of slide to the material to grinding effect, in order to effectively use the grinding effect, the teaching material particle size and a large, generally 20 grinding fine time, the mill cylinder body with every storehouse board separated into two parts, namely become two bin, material is steel ball break into the first warehouse, material into the second warehouse, steel end for material grinding, fine grinding qualified material from the discharge end of the hollow shaft discharge, material of feed particles small mill, such as sand ii slag, crude ash, mill barrel can not set partition, into a single warehouse tube mill, grinding volume also can use the steel section.

This machine is of horizontal cylindrical rotating device, gear transmission, the outer two positions, grate ball mill. Material composed of feeding device through the hollow shaft spiral evenly into the mill first warehouse, the warehouse has ladder plate or corrugated plate, built in different specifications of steel ball, cylinder rotate falling after the ball to a certain height, the centrifugal force is generated on the material and grinding effect. Material in the first warehouse after reaching coarse grinding, by monolayer partition storehouse board into the second warehouse, the warehouse with a flat plate, inside the steel ball, will further grinding material. Powder through the unloading Bi board, finish grinding homework.

Ball mill mechanical structure

Ball mill by feeding, discharging, rotary part, transmission part (reducer, small transmission gear, motor, electric control) and other major parts. Hollow shaft adopts steel, lined with removable, rotary wheel adopts gear hobbing machining, casting cylinder body with wear resistant lining board, has a good wear resistance. The machine is stable running, reliable work.

Ball mill host including cylinder, cylinder body with useful lining made of wear resistant material, have and maintain its rotating cylinder bearing bearing, have driven part, such as motor, and the drive gear, pulley, triangle, etc.

About called blade parts, generally not main components, components on the feed end inlet with internal screw them spiral blade, can be said on the discharge end parts discharging mouth with internal screw can call them spiral blade.

In addition on the discharge end if use screw conveyer in the auxiliary equipment, in the equipment will be called spiral blade parts, but strictly speaking, it is not parts of ball mill.

According to the material and the way of mine, can choose dry ball mill and wet grate ball mill. Energy-saving ball mill, with automatic self-aligning double row centripetal spherical roller bearings, small resistance, energy saving effect is remarkable. Cylinder parts, the original cylinder increases the discharge end a cone cylinder, both increase the effective volume of grinding machine, and make a tube within the medium distribution more reasonable. This product is widely used in non-ferrous metals, ferrous metals, non-metallic mineral processing field and chemical industry, building materials for the use of material grinding.

The overflow type ball mill

Overflow type ball mill with the rotation of the cylinder and the movement of grinding medium, mineral materials, such as broken gradually spread to the right, after the last out of the right of the hollow shaft neck overflow, thus its name.

Grate ball mill

Grate ball mill grid plate is installed at the discharge end, is composed of several pieces of fan hole plate, its Bi - 20 mm hole width is 7 mm, ore through Bi hole into the grating and the space between the end cover, and the board is lifting the material, material along the slip board, after tapered block and to the right to hollow shaft neck closed to discharge.

Energy saving ball mill

Energy-saving ball mill is commonly used in mineral processing production line equipment, efficient energy-saving cone ball mill, magnetic separator, flotation machine, etc.

The installation of MQ ball mill

Ball mill should be installed on a solid concrete foundation. Ball mill on the basis of design and construction of see ball mill assembly diagrams and foundation drawing. In order to guarantee the position accuracy of ball mill parts in use process does not have big change, ball mill on the basis of the whole structure should be adopted.

Concrete foundation compressive strength after reaching more than 75% can be installed on ball mill. Before installing response of quality inspection, the defects of the strength of concrete has no effect, the number of the reserved hole position and meets the requirements, the reserved hole clutter and without water, without pollution. By using "ground", when installation, on the surface should be embedded based on "center the board". Before installation on the basis of the center line of the draw all and made on the "center the board" marked the impact point of tag, as the middle line of the benchmark when installation.

Hoisting before dealing with ball mill for full acceptance of the parts, handle in time when problems found.

1, the specific requirements of the main bearing part see main bearing parts assembly drawing.

2, barrel part see rotary part assembly drawing.

3, transmission part see part of the assembly drawing.

4, overall relative position see assembly drawing.