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(1)

Performance Data

of Crushing Equipment

Redbook version 4.3

24.09.2007

(2)

Metso Minerals (Tampere) Oy

Red Book

Research and Test Centre

VHL 24.9.2007

METSO MINERALS RED BOOK

Performance Data of Nordberg Crushing Equipment

0. Introduction

Metso Minerals Red Book is meant to be used by marketing and service personnel of Metso

Minerals, to help them to apply products and to estimate their performance and operation costs in

use.

The curves published in this file are mainly based on the tests carried out at Metso Minerals

(Tampere) test plant and laboratory. The feed material in most of the tests has been clean, middle

hard granite rock or gravel with different fractions. Tests have been carried out by crushers

working in open circuit.

In the crushing tests the feed fraction depends on the crusher. The maximum feed size has

normally been near by maximum easily crushable feed size of the crusher. The lower limit of the

feed fraction has been equal to close side setting (css) or lower. Only some of the secondary

G-Cone crushers have been tested by zero-based material which is often used in usual crushing

work.

Table of Contents

Rock Tests and Correlations...1

C Jaw Crushers ...2

GP100 and GP100S Cone Crushers ...3

GP200 and GP200S Cone Crushers ...4

G-Cone Crushers, 11 Series...5

GP300 and GP300S Cone Crushers ...6

GP500 and GP500S Cone Crushers ...7

GP550 Cone Crushers...8

(3)

Metso Minerals (Tampere) Oy

C Jaw Setting Limits

VHL 9/26/2007 9:46 AM Crusher Min c.s.s. (mm) Max c.s.s. (mm) Min o.s.s. (mm) Max o.s.s. (mm) Max power (kW) Max feed (mm) Att. C80 40 175 64 199 75 410 1/28/2002 JKM C96 60 180 92 212 90 460 8/22/2007 VHL C100 70 250 102 282 110 610 1/28/2002 JKM C106 70 200 102 232 110 560 8/22/2007 VHL C116 70 166 108 204 132 582 8/22/2007 VHL C110 70 200 106 236 132 680 1/28/2002 JKM C3054 70 200 102 232 160 640 8/22/2007 VHL C125 100 250 139 289 160 760 1/28/2002 JKM C140 130 250 172 292 200 860 1/28/2002 JKM C145 125 285 161 321 200 880 1/28/2002 JKM C160 150 285 189 324 250 960 1/28/2002 JKM C200 175 300 225 350 400 1200 1/28/2002 JKM Last change

This table contains up to date C Series jaw crusher setting limits. If some other document has different information, it is incorrect or old. Minimum close side settings (c.s.s. are valid for Metso Minerals (Tampere) Oy reference material (granite, Wi (Bond) = 15, Shatter = 30, LosA = 20, Crushability = 35) and these values are generally determined by a power limit. The settings are nominal values with new standard jaws. The closed side setting is meant to be shortest distance between the fixed and movable jaws by measuring the setting in accordance with the recommended method for each corresponding set. The maximum feed size is a maximum recommended material size (medium dimension), again also when the crusher is equipped with new jaws. Typically this value is about 80% of the feed opening depth.

(4)

Nordberg-Lokomo Oy

GP Cone Setting Limits

JKM 8.8.2005 15:43

Cavity

Stroke

(mm)

Min c.s.s.

(mm)

Max c.s.s.

(mm)

Max power

(kW)

Max

pressure

(bar)

Max feed

(mm) Att.

16

5

18

90

35

32

9.12.1999 KoV

20

6

16

90

35

32

9.12.1999 KoV

25

7

14

90

35

32

9.12.1999 KoV

16

5

17

90

35

40

9.12.1999 KoV

20

6

15

90

35

40

9.12.1999 KoV

25

7

12

90

35

40

9.12.1999 KoV

16

7

20

90

35

85

9.12.1999 KoV

20

9

18

90

35

85

9.12.1999 KoV

25

11

15

90

35

85

9.12.1999 KoV

16

10

20

90

35

105 Not tested

9.12.1999 KoV

20

11

18

90

35

105 Not tested

9.12.1999 KoV

25

12

15

90

35

105 Not tested

9.12.1999 KoV

16

13

24

90

35

120

9.12.1999 KoV

20

15

22

90

35

120

9.12.1999 KoV

25

17

19

90

35

120

9.12.1999 KoV

16

20

43

90

28

170

9.12.1999 KoV

20

24

41

90

28

170

9.12.1999 KoV

25

28

39

90

28

170

9.12.1999 KoV

16

24

48

90

28

210

9.12.1999 KoV

20

29

46

90

28

210

9.12.1999 KoV

25

34

44

90

28

210

9.12.1999 KoV

18

24

46

160

13

230 Not tested

13.12.1999 KoV

25

27

43

160

13

230 Not tested

13.12.1999 KoV

32

30

39

160

13

230 Not tested

13.12.1999 KoV

18

26

52

160

13

270

13.12.1999 KoV

25

29

49

160

13

270

13.12.1999 KoV

32

32

45

160

13

270

13.12.1999 KoV

20

5

23

160

40

35

25.6.1997 KoV

25

7

21

160

40

35

25.6.1997 KoV

30

9

18

160

40

35

25.6.1997 KoV

20

7

24

160

40

70

25.6.1997 KoV

25

9

21

160

40

70

25.6.1997 KoV

30

11

19

160

40

70

25.6.1997 KoV

20

14

28

160

40

100

7.11.1996 KoV

25

16

26

160

40

100

7.11.1996 KoV

30

18

23

160

40

100

7.11.1996 KoV

20

15

29

160

40

170

7.11.1996 KoV

25

17

27

160

40

170

7.11.1996 KoV

30

19

24

160

40

170

7.11.1996 KoV

20

15

29

160

40

150 Not tested

7.11.1996 KoV

25

17

27

160

40

150 Not tested

7.11.1996 KoV

30

19

24

160

40

150 Not tested

7.11.1996 KoV

20

18

32

160

40

190 Not tested

7.11.1996 KoV

25

20

30

160

40

190 Not tested

7.11.1996 KoV

30

22

27

160

40

190 Not tested

7.11.1996 KoV

20

20

51

160

40

190

7.11.1996 KoV

25

25

49

160

40

190

7.11.1996 KoV

30

30

46

160

40

190

7.11.1996 KoV

25

6

22

250

22

32

7.12.1999 KoV

32

8

19

250

22

32

7.12.1999 KoV

40

10

15

250

22

32

7.12.1999 KoV

25

8

28

250

22

50

8.12.1999 KoV

32

11

25

250

22

50

8.12.1999 KoV

40

14

21

250

22

50

8.12.1999 KoV

25

13

29

250

22

100

7.12.1999 KoV

32

15

26

250

22

100

7.12.1999 KoV

40

17

22

250

22

100

7.12.1999 KoV

25

15

29

250

22

120

7.12.1999 KoV

32

17

26

250

22

120

7.12.1999 KoV

This table contains original GP Cone setting limits. If some other document has different information, it is incorrect or old. Minimum

close side settings are valid for Nordberg-Lokomo reference material (granite, Wi (Bond) = 15, Shatter = 30, LosA = 20) and the

value is determined by the power or pressure limit, which gives higher minimum setting. Maximum close side setting is the nominal

value for new liners, when the main shaft is in position 4mm upwards from the lowest position. Manufacturing tolerances cause

variation to the maximum setting.

GP300 M

GP300 MF

GP300 F

GP300 EF

G2211LS

G2211

G1811

G2011

G1211

G811

G411

GP200S EC

GP200S C

GP100 MF

GP100 EF

Last change

GP100S C

GP100S M

GP100 C

GP100 M

GP100 F

(5)

Nordberg-Lokomo Oy

GP Cone Setting Limits

JKM 8.8.2005 15:43

Cavity

Stroke

(mm)

Min c.s.s.

(mm)

Max c.s.s.

(mm)

Max power

(kW)

Max

pressure

(bar)

Max feed

(mm) Att.

Last change

25

18

37

250

22

140

7.12.1999 KoV

32

21

34

250

22

140

7.12.1999 KoV

40

24

30

250

22

140

7.12.1999 KoV

25

22

41

250

22

200

8.12.1999 KoV

32

26

37

250

22

200

8.12.1999 KoV

40

30

33

250

22

200

8.12.1999 KoV

18

25

47

250

17

240

8.12.1999 KoV

25

29

44

250

17

240

8.12.1999 KoV

32

33

40

250

17

240

8.12.1999 KoV

40

250

17

240

8.12.1999 KoV

18

28

53

250

17

320

8.12.1999 KoV

25

32

50

250

17

320

8.12.1999 KoV

32

36

46

250

17

320

8.12.1999 KoV

40

250

17

320

8.12.1999 KoV

25

8

27

320

22

35

9.12.1999 KoV

32

10

23

320

22

35

9.12.1999 KoV

40

12

19

320

22

35

9.12.1999 KoV

25

11

30

320

22

70

9.12.1999 KoV

32

13

27

320

22

70

9.12.1999 KoV

40

15

23

320

22

70

9.12.1999 KoV

25

12

32

320

22

110

9.12.1999 KoV

32

15

28

320

22

110

9.12.1999 KoV

40

18

24

320

22

110

9.12.1999 KoV

25

16

42

320

22

140

9.12.1999 KoV

32

20

39

320

22

140

9.12.1999 KoV

40

24

35

320

22

140

9.12.1999 KoV

25

18

47

320

22

170

9.12.1999 KoV

32

22

44

320

22

170

9.12.1999 KoV

40

25

40

320

22

170

9.12.1999 KoV

18

40

77

320

17

320 Not tested

13.12.1999 KoV

25

45

74

320

17

320 Not tested

13.12.1999 KoV

32

50

70

320

17

320 Not tested

13.12.1999 KoV

18

50

82

320

17

420 Not tested

13.12.1999 KoV

25

55

79

320

17

420 Not tested

13.12.1999 KoV

32

60

75

320

17

420 Not tested

13.12.1999 KoV

25

10

27

220

22

Not tested

8.8.2005 JKM

32

12

22

280

22

Not tested

8.8.2005 JKM

40

14

18

315

22

Not tested

8.8.2005 JKM

25

11

35

220

22

75

8.8.2005 JKM

32

14

31

280

22

75

8.8.2005 JKM

40

16

26

315

22

75

8.8.2005 JKM

25

12

38

220

22

100

8.8.2005 JKM

32

15

35

280

22

100

8.8.2005 JKM

40

18

29

315

22

100

8.8.2005 JKM

25

16

41

220

22

140 Not tested

8.8.2005 JKM

32

20

38

280

22

140 Not tested

8.8.2005 JKM

40

24

32

315

22

140 Not tested

8.8.2005 JKM

25

18

43

220

22

200

8.8.2005 JKM

32

22

39

280

22

200

8.8.2005 JKM

40

25

35

315

22

200

8.8.2005 JKM

25

22

46

220

22

250 Not tested

8.8.2005 JKM

32

25

43

280

22

250 Not tested

8.8.2005 JKM

40

28

39

315

22

250 Not tested

8.8.2005 JKM

GP550 C

GP550 EC

GP550 EF

GP550 F

GP550 MF

GP550 M

GP500S EC

GP500S C

GP500 C

GP500 M

GP500 MF

GP500 F

GP500 EF

GP300S EC

GP300S C

GP300 EC

GP300 C

Page 2 of 2

(6)

Metso Minerals (Tampere) Oy

Red Book

Research and Test Centre

VHL 24.9.2007

1. Rock Tests and Correlations

This section contains knowledge about rock tests at Metso Minerals (Tampere) rock laboratory,

characteristics of different rock materials, and some correlation curves between different rock test

methods.

Correlation between Flakiness Index (EN933-3) and 1:3 test method (Earlier DIN 52114,

nowadays Shape Index EN 933-4)

For this chart we have carried out 42 crushing tests with GP200S and HP300 crushers and

measured products by both methods. From those tests we get total of 377 points to the chart.

Rock Laboratory

Some years ago we got some new testing equipment to the rock laboratory in Tampere. For the

implementation we made large research project for 12 different rock materials. In the project we

carried out all the rock tests, old and new, in our laboratory and some other tests in Technical

Universities in Tampere and in Helsinki. Summary of the results is printed in a table and all the

correlation charts are based on this table.

Correlation Figures

Due to long history of testing different rocks, it has been possible to create the correlation between

most common rock test methods. This obviously gives us chance to make only those rock tests

that are really required.

There can be seen difference between Tampere and Milwaukee Abrasion Indexes. This results

from the different steel paddles used in Tampere and Milwaukee laboratories.

Also Bond Work Index is in different level if Tampere and Mâcon results are compared. Reason for

this is unclear. Anyway, be sure that you read test result from right laboratory, when it is question

of other tests than Crushability and Abrasiveness.

Liner Lifetime

In this book all the liner lifetimes are based on medium hard granite what has a lifetime factor of 1.

When material to be crushed is tested in our laboratory the liner lifetime factor can be estimated

from this chart. This chart does not give exact number because the abrasion index test is not real

compressive crushing test. Please note that the figure has been changed quite a lot especially in

high abrasive applications. This figure bases on real test data.

(7)

Metso Minerals (Tampere) Oy

JKM 28/11/01

Page 1/3

ABRASIVENESS AND CRUSHABILITY

Main principle

The purpose of test is to establish Abrasiveness and Crushability according to NF P18-579.

The Abrasiveness gives an indication of the abrasiveness of the rock material. The

Crushability value can be used for estimating how easily the tested material breaks down.

The Abrasiveness Tester

Test Paddle

The dry and cleaned paddle 50 mm x 25

mm x 5 mm is weighed before the test.

Material

Material for the test:

4 – 6,3 mm

500 g

Test Procedure

The paddle is clamped in the slot of the

hub. A 500 g sample of material to be

tested is placed in the drum. The paddle

rotates for 5 minutes (4500rpm). After 5

minutes rotation the drum is emptied and

the tested material is screened by 1,6 mm

screen. Material which passes 1,6 mm

screen is weighed. The test paddle is also

cleaned and weighed.

Result Calculation

ABR

= (M

before

– M

after

) * 1000 / 0,5 [g/t]

ABR

=

Abrasiveness

M

before

=

the mass of the cleaned and dried test

paddle before the abrasion test

M

after

=

the mass of the cleaned and dried test

paddle after the abrasion test

CR

= M-1,6 mm / 500

[%]

CR

=

Crushability

CR

=

percentage of material –1,6 mm after test

M

–1,6 mm

=

the mass of material which passes the

screen of 1,6 mm after test

BOWL

TEST PADDLE

(8)

Metso Minerals (Tampere) Oy

JKM 28/11/01

LOS ANGELES TEST

Main Principle

The purpose of this test is to establish a Los Angeles value. Los Angeles value gives an

indication of the resistance of material to abrasion and impact.

Los Angeles test (in Nordberg-Lokomo) is based on ASTM -standard C131 - 89 “ Resistance

to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles

machine”.

Los Angeles Machine

The Los Angeles testing machine consists

of a hollow steel cylinder closed at both

ends having inside diameter of 711 mm

and inside length of 510 mm. The machine

rotates 30 (- 33) rpm for 500 revolutions.

On the interior surface of the cylinder there

is a steel shelf plate (height 89 mm), which

carries material and steel spheres until

they are dropped to the opposite side of

the drum.

To the drum with material is also placed 11 steel spheres which average diameter is 47 mm

and each weight between 390 g - 445 g.

Material Preparation

The material to be tested:

9,52 mm - 12,7 mm

2500 g

12,7 mm - 19 mm 2500 g

Total:

5000 g

Test Procedure

The 5000 g test sample with the 11 steel spheres is placed into the Los Angeles machine.

The machine rotates 500 revolutions (takes about 16 minutes). After prescribed number of

revolutions the material is emptied from the drum and the tested material is screened on a

1,68 mm screen. Percentage of material passing through the screen is Los Angeles value.

Result Calculation

Los A - value =

M

-1,68mm

/ 5000 g * 100 [%]

M

-1,68mm

=

material from Los Angeles machine which

passes a 1,68 mm screen.

Steel sphere

(9)

Metso Minerals (Tampere) Oy

JKM 28/11/01

Page 3/3

FLAKINESS INDEX (IN TAMPERE)

Main Principle

The purpose of a Flakiness Index Test is to establish a Flakiness Index for whole sample or

given fractions. Flakiness index announces percentage of flaky particles in the sample.

Measurement of Flakiness Index in Tampere is based on EN –standard (EN 933-3).

Table 1. Screen bars used in flakiness index

FRACTION

(SQUARE

OPENING)

BAR SCREEN

(GRID SPACING)

64*/80

40

50/64*

31,5

40/50

25

32*/40

20

25/32*

16

20/25

12,5

16/20

10

12.7*/16

8

10/12.7

6,3

8/10

5

6.3/8

4

5/6.3

3,15

4/5

2,5

*) Differs from EN-standard.

Test Procedure

Dry sample is sieved for different fractions by using sieve series according to table 1.The

material in each fraction is weighed.

After weighing each fraction is screened by the bar screen, where distance between bars is

also given in the table on the previous page. In each fraction the mass of flaky particles which

pass through the bar screen is weighed.

Result Calculation

Flakiness index announces percentage of flaky particle in the whole sample or in the given

fraction (as the percentage by weight).

An example of calculation:

FRACTION

[MM/MM]

MASS

[G]

BAR SCREEN

[MM]

MASS

[G]

FLAKINESS INDEX

[%]

10/12.5

1 596

6,3

190

11,9

8/10

1 173

5

212

18,1

6.3/8

597

4

120

20,1

5/6.3

338

3,15

67

19,8

4/5

224

2,5

56

24,9

Total:

3 928

---

645

16,4

(10)

Metso Minerals (Tampere) Oy

JKM 28/11/01

Bond Work Index [kWh/t]

Crushability [%]

very easy

0-7

very easy

50-easy

7-10

easy

40-50

medium

10-14

medium

30-40

difficult

14-18

difficult

20-30

very difficult

18-

very difficult

-20

Los Angeles value

Ai- 8mm product

very easy

27-

very easy

60-easy

22-27

easy

45-60

medium

17-22

medium

30-45

difficult

12-17

difficult

15-30

very difficult

-12

very difficult

-15

Shatter Index

very easy

40-easy

35-40

medium

30-35

difficult

25-30

very difficult

-25

French Abrasiveness [g/ton]

Abrasion Index

non abrasive

0-100

non abrasive

-0.1

slightly abrasive

100-600

slightly abrasive

0.1-0.4

Crushability Classification

(11)

Metso Minerals (Tampere) Oy

FLAKINESS INDEX EN 933-3 vs. SHAPE INDEX EN 933-4

JKM/ 8.10.04

0

10

20

30

40

50

60

0

10

20

30

40

50

60

Flakiness index (EN 933-3)

S

hape Index (EN 933-4

)

Metso Minerals (Tampere) Oy

ROCK TEST RESULTS OF DIFFERENT ROCK TYPES

JKM/ 8.10.04

Finland Finland Finland Finland Finland Germany Finland Finland Finland Cyprus France Finland Finland

Specimen Sorila Lakalaiva Ritakallio Pyhällönvuori Riitiala Hirschentantz Kuru Parainen Koskenkylä Pyhäsalmi Kemi

Stone Granite Mica-gneiss Mica-gneiss Gneiss Plagioclase- Basalt Granite Limestone Tonalite Diabase Limestone Sulphur ore Chrome ore porphyr

Specific gravity (t/m3) 2.69 2.73 2.78 2.72 2.80 3.00 2.64 2.71 2.66 2.77 2.61 4.65 3.71

Shatter index (8mm) 26.6 35.9 29.3 35.0 25.7 24.3 34.5 56.5 21.5 20.7 46.4 79.9 56.1

Shatter index (4mm) 10.9 14.5 11.3 14.0 9.4 8.7 14.3 31.9 9.4 6.7 20.3 58.9 30.1

Los Angeles value 17.2 20.0 15.1 20.9 10.5 8.5 21.8 43.3 11.7 7.2 30.1 59.8 47.1

Los Angeles value (cubicity 100 %) 16.7 19.4 13.6 19.5 9.6 7.8 20.7 42.3 10.9 6.4 29.7 58.2 48.1

Bond Work Index (kWh/t) 16.0 13.9 12.7 14.6 16.1 16.1 13.4 9.5 15.6 22.0 9.3 5.9 7.1

Bond work index maximum 24.9 21.2 27.3 24.9 26.6 21.3 23.5 14.3 29.6 34.6 13.4 10.2 10.2

Lokomo Work Index (kWh/t) 13.7 10.8 10.8 10.1 15.8 14.5 12.9 6.6 14.5 19.1 9.9 4.2 7.9

Lokomo work index maximum 22.2 22.3 22.7 18.7 23.9 27.4 18.4 11.2 22.0 30.7 14.1 8.2 12.3

Abrasion index (Lokomo) 0.82 0.56 0.73 0.48 1.08 0.80 0.82 -0.02 1.10 0.52 0.03 0.24 0.04

-2mm after abrasion test 19.4 23.0 17.4 26.6 11.2 8.8 19.8 70.1 11.8 11.2 54.5 81.8

-8mm after abrasion test 22.8 27.0 18.8 32.2 16.9 14.2 23.0 98.3 15.0 13.9 66.0 93.4 97.2

Anisotropy index 1.16 1.36 1.21 3.19 1.06 1.04 1.15 1.23 1.05 1.80 1.14

Schmidt hammer value (boulder) 56 63 55 65 63 60 66

Schmidt hammer value (solid) 58 59 54 56 59 59 61

Grain size medium medium medium medium medium fine medium coarce fine medium medium

Strenght by

microscopic examination medium-good soft-medium medium medium soft-medium medium medium-good soft soft-medium good soft soft

Nordic ball mill 11.4 14.3 8.8 18.2 5.8 7.7 8.4 49.6 5.1 8.2 37.3

Uniaxial compressive strength (MPa) 193.9 63.7 260 89 284 125.5 76.9 308.4

Young's modulus (GPa) 70 72.4 81.5 60.5 87.7 57.5 70.2 73.4

Poisson's ratio 0.25 0.27 0.24 0.26 0.25 0.21 0.26 0.23

Tensile strength (MPa) 13.5 11.4 17.6 13 22.8 12.9 6.3 19.9

(12)

Metso Minerals (Tampere) Oy

LOS ANGELES value vs. CRUSHABILITY

JKM 8.10.04

0

10

20

30

40

50

60

70

80

90

100

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

Los Angeles value

C

rushability [%

]

Metso Minerals (Tampere) Oy

Ai -8 mm vs. CRUSHABILITY

JKM / 8.10.04

10

20

30

40

50

60

70

80

C

rushabilit

y

(13)

Metso Minerals (Tampere) Oy

LOS ANGELES value vs. UCS

JKM/25.10.04

0

50

100

150

200

250

300

350

400

450

0

5

10

15

20

25

30

35

40

45

50

Los Angeles value

U

niaxial Compressive Strength [MPa

]

Metso Minerals (Tampere) Oy

LOS ANGELES value vs. NORDIC BALL MILL

JKM/ 25.10.04

0

5

10

15

20

25

30

35

40

45

50

0

5

10

15

20

25

30

35

40

45

50

Los Angeles

N

ordic Ball M

ill

(14)

Metso Minerals (Tampere) Oy

CRUSHABILITY vs. BOND WORK INDEX (Tampere lab.)

JKM / 8.10.04

0

5

10

15

20

25

30

35

0

10

20

30

40

50

60

70

80

Crushability

B

ond Work Index [kWh/ton] Tampere la

b

Metso Minerals (Tampere) Oy

CRUSHABILITY vs. BOND WORK INDEX (Mâcon lab.)

JKM / 8.10.04

5

10

15

20

25

30

35

B

ond Work Index [kWh/ton] Macon la

(15)

Metso Minerals (Tampere) Oy

TAMPERE vs. MILWAUKEE ABRASION INDEX

JKM / 8.10.04

0.0

0.2

0.4

0.6

0.8

1.0

1.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

Metso Minerals (Tampere) Abrasion Index [Ai]

M

etso Minerals (Milwaukee) Abrasion Index [A

i]

Metso Minerals (Tampere) Oy

ABRASION INDEX vs. ABRASIVENESS

JKM 8.10.04

0

500

1000

1500

2000

2500

3000

3500

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

Metso Minerals (Tampere) Abrasion Index [Ai]

A

brasiveness (g/

(16)

Metso Minerals (Tampere) Oy

TAMPERE Ai vs. SiO

2

content

JKM / 8.10.04

0

10

20

30

40

50

60

70

80

90

100

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Metso Minerals (Tampere) Abrasion Index

S

iO

2

content [%

]

Metso Minerals Abrasiveness [g/ton]

0

200

400

600

800

1000

1200

1400

1600

1800

2000

Metso Minerals (Tampere) Oy

INDICATIVE LIFETIME FACTOR

JKM 8.10.0414:01

0.1

1

10

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

Metso Minerals (Tampere) Abrasion Index

L

ifetime facto

r

Lifetime Factor

Metso Minerals Abrasiveness [g/ton]

(17)

Metso Minerals (Tampere) Oy

Properties of Crushed Material

JKM 25.10.04

Material to be crushed must be brittle like rock. That means that the tensile strength is about 10% of the compressive strength.

0

50

100

150

200

250

300

350

400

450

500

550

600

0

1000

0

2000

0

3000

0

4000

0

5000

0

6000

0

7000

0

8000

0

9000

0

10000

0

11000

0

12000

0

Young's modulus (MPa)

C

ompressive strength (MPa

)

0 10 20 30 40 50 60 70 80 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 1000 0 1100 0 1200 0 1300 0 1400 0 1500 0 1600 0 1700 0 (kpsi) (kps i) Test results Conrete Litterature

Accepted Area

for Compressive

Crushing

Sigma2/E<1.5 and Sigma<400 MPa

(18)

Metso Minerals (Tampere) Oy

Red Book

Research and Test Centre

VHL 26.9.2007

2. C Jaw Crushers

Capacity

The capacities of C jaw crushers are based on field tests carried out by some of middle size jaw

crushers. The other sizes are calculated by a computer program analogous to these field tests.

The capacities in this chart are maximum momentary capacities for clean, medium hard granite

with a product bulk density of 1.6 t/m

3

. The upper limit of the feed fraction is equal to 80% of the

feed opening and the lower limit is equal to closed side setting. The capacities are shown

according to both closed side setting (css) and open side setting (oss). The setting has been

measured from top to valley with gravel jaws (C80-C125) and from top to top with quarry jaws

(C140-C200). The capacity curves are shown only for valid setting range by new jaw dies.

The long-term capacity depends on the feeding system, jaw plate wear and ability of the operating

personnel. In practice these momentary values must be reduced. A normal reduction is about

20-40%.

Product Gradation

The jaw crusher section includes also the general product gradation chart for all jaw crushers. This

is based on Richards diagram, where the crusher product includes 68% of fractions smaller than

css. This is valid for normal feed fraction (lower limit equal to css and upper limit equal to 80% of

the feed opening). If there is fine fractions in the feed, the product includes also more fines.

To find out the right product gradation for specific css:

1.

Find the point, where css (vertical line) crosses 68% (horizontal line).

2.

Draw parallel curve to the other curves crossing this point. This curve is the product gradation

to be found.

Power Consumption

The power consumption chart is indicative for C jaw crushers. The power consumption depends on

the rock material and the feed fraction.

Life Time of Jaw Dies

The lifetime of jaw dies depends on the material to be crushed. In this chart values are valid for

medium hard granite (Lokomo Ai = 0.5, SiO

2

content = 70%).

The lifetime of side plates is 3 ... 4 times the lifetime of jaw dies.

Correction Figures

(19)

Metso Minerals (Tampere) Oy

JKM /08.08.05

EXAMPLES OF USING REDBOOK CORRECTION FACTORS

FOR C JAW TYPE OF CRUSHER

In this chapter, the use of correction factors has been presented more

precisely. It should be noted that there are still different factors that

effect on the C jaw performance than just the given ones. For example,

jaw profile type (measuring method of CSS), wear rate of liners, open

side setting etc. have always a meaningful effect on jaw performance.

Bruno v3 process simulation program uses these correction factors.

EXAMPLE 1: Use of POWER correction factors.

Use of power correction curves has been shown with the help of an example. In this example,

selected crusher is C110, used CSS = 100-mm. To get comparable power results, C110 is

used in two different applications, which are:

Application 1 (later case-1): Feed curve 200/600, rock crushability 30%

Application 2 (later case-2): Feed curve 0/400, rock crushability 50%

Both feed curves, case-1 and case-2, have been shown in figure 1. Feed fraction 50%

passing point (F

50

) has been also drawn in figure 1. In this example,

F

50

(case-1) = 380-mm

F

50

(case-2) = 120-mm

Figure 1. Two different feed curves, case 1 and case 2.

To get nominal average power value for C110 (CSS 110-mm), power as a function of CSS

has to be defined with the help of figure 2.

(20)

Metso Minerals (Tampere) Oy

VHL /24.09.07

In this example, nominal value (motor size recommendation) is 120-140 kW (see figure 2).

Please note that there is complete power figure (motor size figure), for C jaw range in

Redbook.

Figure 2. Nominal motor size of C110 crusher.

Final power correction curve has been shown in figure 3. To find right correction factor, a

crushing work ratio (CWR50) has to been defined. Crushing work ratio is calculated by the

formula;

(21)

Metso Minerals (Tampere) Oy

JKM /08.08.05

Figure 3. Power correction factor for C jaw series. Moisture content 0…1,5%.

The power consumption estimation is now calculated as a multiplication of nominal power and

power correction factor.

Indicative average power (case-1) = 0.97 x 130 kW = 126 kW

Indicative average power (case-2) = 0.50 x 130 kW = 65 kW

This power is valid, when the jaw crusher is choke fed. The average power draw is lower if

choke feed cannot be arranged.

EXAMPLE 2: Use of CAPACITY correction factors.

Use of capacity correction curves has been presented with the help of an example. Same

cases have been used as in example 1. Feed fraction 50% passing points were like follows;

F

50

(case-1) = 380-mm

F

50

(case-2) = 120-mm

Before using correction factors, nominal capacity for C110 crusher has to be defined (CSS

100-mm). Nominal capacity can be read from the C jaw performance curve, figure 4.

In this example, the nominal capacity is;

Capacity = 260 mtph

Due to fluctuation of feed gradation, rock material, moisture, wear part-wearing etc., the

recommended electric motor size has to be confirmed by factory.

(22)

Metso Minerals (Tampere) Oy

JKM /08.08.05

Figure 4. Nominal capacity curves for C jaw crushers.

Capacity correction curves have been shown in figure 5. To find out the right correction factor,

a crushing work ratio (CWR50) has to be defined. Crushing work ratio is calculated by the

formula;

CWR50 = F

50

/CSS.

CWR50 (case-1) = 380-mm/ 100-mm = 3.8, rock material crushability 30%

CWR50 (case-2) = 120-mm/ 100-mm = 1.2, rock material crushability 50%

(23)

Metso Minerals (Tampere) Oy

JKM /08.08.05

Average capacity (case-1) = 0.92 x 260 mtph = 240 mtph

Average capacity (case-2) = 0.94 x 260 mtph = 245 mtph

Final results are indicative.

EXAMPLE 3: Use of product gradation correction factors.

Correction figures for max particle size* in product of C jaw has been presented in this

section. Previously used example cases have been utilised also in this example. Crusher feed

fraction 80% passing point and closed side setting sets the maximum product size* in

different applications.

*Max product size = Middle dimension of maximum product particle size (95-98-%

passing), defined by square screen opening. In practise there are lot of fluctuation in

feed system of jaw crusher. This means that there are few precents of product size,

which is bigger than calculated maximum particle size (2-5-% oversize, lumps).

These "lumps" are such that the middle and maximum dimensions are remarkably

bigger than the shortest dimension. Thus, the particle looks like a plate. Lump size

isn't limiting the feed into secondary cone crusher.

In given applications, the feed grading F

50

points were;

F

50

(case-1) = 380-mm

F

50

(case-2) = 120-mm

Instead of these points, feed fraction 80-passing point has been used to describe the

development of product maximum. In given examples the F

80

points were;

F80 (case-1) = 480-mm

F80 (case-2) = 240-mm

Product gradation correction factors have been shown in figure 6. To find right correction

factor, a crushing work ratio (CWR80) has to been defined. Crushing work ratio is calculated

by the formula;

CWR80 = F

80

/CSS.

CWR80 (case-1) = 480-mm/ 100-mm = 4.8, rock material crushability 30%

CWR80 (case-2) = 240-mm/ 100-mm = 2.4, rock material crushability 50%

(24)

Metso Minerals (Tampere) Oy

JKM /08.08.05

Figure 6. Product gradation correction factors for GP-cone crusher. Moisture content

0…1,5%.

Product maximum particle size factors according to figure 6 are;

Case 1: 2.0

Case 2: 1.25

This final value for product maximum product size is got when the previously given factor is

multiplied by the jaw crusher setting (css). Finally, the maximum product sizes has been

calculated in following:

(25)

Metso Minerals (Tampere) Oy

C Jaw Capacity, CSS

VHL 9/26/2007 10:03 AM

Feed material granite. Feed fraction lower limit is equal to css and upper limit is equal to max. feed size. Open circuit.

0

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

40

60

80

100

120

140

160

180

200

220

240

260

280

300

Closed Side Setting (mm)

Ca

pa

c

ity

(MTP

H

)

C200 C160 C145 C140 C125 C3054 C110 C116 C106 C100 C96 C80

Metso Minerals (Tampere) Oy

C Jaw Capacity, OSS

VHL 9/26/2007 10:03 AM

Feed material granite. Feed fraction lower limit is equal to css and upper limit is equal to max. feed size. Open circuit.

0

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

60

80

100

120

140

160

180

200

220

240

260

280

300

320

340

360

Open Side Setting (mm)

Ca

pa

c

ity

(MTP

H

)

C200 C160 C145 C140 C125 C3054 C110 C116 C106 C100 C96 C80

(26)

Metso Minerals (Tampere) Oy

C Jaw Capacity 1, CSS

VHL 9/26/2007 10:17 AM

Feed material granite. Feed fraction lower limit is equal to css and upper limit is equal to max. feed size. Open circuit.

0

50

100

150

200

250

300

350

400

450

500

550

600

40

50

60

70

80

90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250

Closed Side Setting (mm)

Ca

pa

c

ity

(MTP

H

)

C3054 C110 C116 C106 C100 C96 C80

Metso Minerals (Tampere) Oy

C Jaw Capacity 2, CSS

VHL 9/26/2007 10:17 AM

0

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

40

60

80

100

120

140

160

180

200

220

240

260

280

300

Ca

pa

c

ity

(MTP

H

)

C200 C160 C145 C140 C125 C3054 C110

(27)

Metso Minerals (Tampere) Oy

C Jaw Capacity

VHL 9/26/2007 10:21 AM

Setting

Product Capacity (MTPH)

(CSS) C80 C96 C100 C106 C116 C110 C125 C140 C145 C3054 C160 C200 40 mm 63 t/h 50 mm 80 t/h 60 mm 97 t/h 120 t/h 70 mm 114 t/h 140 t/h 150 t/h 168 t/h 185 t/h 190 t/h 240 t/h 80 mm 131 t/h 160 t/h 171 t/h 190 t/h 207 t/h 212 t/h 268 t/h 90 mm 148 t/h 180 t/h 192 t/h 213 t/h 230 t/h 235 t/h 295 t/h 100 mm 165 t/h 200 t/h 213 t/h 235 t/h 252 t/h 257 t/h 290 t/h 323 t/h 110 mm 182 t/h 220 t/h 233 t/h 257 t/h 274 t/h 279 t/h 314 t/h 351 t/h 120 mm 199 t/h 240 t/h 254 t/h 280 t/h 297 t/h 302 t/h 338 t/h 378 t/h 130 mm 216 t/h 260 t/h 275 t/h 302 t/h 319 t/h 324 t/h 362 t/h 400 t/h 414 t/h 406 t/h 140 mm 233 t/h 280 t/h 296 t/h 324 t/h 341 t/h 346 t/h 386 t/h 427 t/h 442 t/h 434 t/h 150 mm 250 t/h 300 t/h 317 t/h 346 t/h 363 t/h 368 t/h 410 t/h 454 t/h 470 t/h 462 t/h 520 t/h 160 mm 267 t/h 320 t/h 338 t/h 369 t/h 386 t/h 391 t/h 434 t/h 481 t/h 498 t/h 489 t/h 550 t/h 170 mm 284 t/h 340 t/h 358 t/h 391 t/h 408 t/h 413 t/h 458 t/h 508 t/h 527 t/h 517 t/h 581 t/h 180 mm 360 t/h 379 t/h 413 t/h 435 t/h 482 t/h 535 t/h 555 t/h 545 t/h 611 t/h 779 t/h 190 mm 400 t/h 436 t/h 458 t/h 506 t/h 563 t/h 583 t/h 572 t/h 641 t/h 816 t/h 200 mm 421 t/h 458 t/h 480 t/h 530 t/h 590 t/h 611 t/h 600 t/h 672 t/h 853 t/h 210 mm 442 t/h 554 t/h 617 t/h 639 t/h 702 t/h 890 t/h 220 mm 463 t/h 578 t/h 644 t/h 667 t/h 733 t/h 927 t/h 230 mm 483 t/h 602 t/h 671 t/h 695 t/h 763 t/h 965 t/h 240 mm 504 t/h 626 t/h 698 t/h 723 t/h 793 t/h 1002 t/h 250 mm 525 t/h 650 t/h 725 t/h 752 t/h 824 t/h 1039 t/h 260 mm 780 t/h 854 t/h 1076 t/h 270 mm 808 t/h 884 t/h 1113 t/h 280 mm 836 t/h 915 t/h 1151 t/h 290 mm 864 t/h 945 t/h 1188 t/h 300 mm 1225 t/h

Feed material granite. Feed fraction lower limit is equal to ccs and upper limit is equal to max. feed size. Open circuit.

Metso Minerals (Tampere) Oy

C jaw Capacity factor

JaR JKM 9/26/2007

0.7

0.75

0.8

0.85

0.9

0.95

1

1.05

1.1

1.15

1.2

1

1.5

2

2.5

3

3.5

4

F50/Setting (mm/mm)

Red Book CAPACITY correction factor

Crushability 20% Crushability 30% Crushability 40% Crushability 50%

(28)

Metso Minerals (Tampere) Oy

C Jaw Electric Motor Design

VHL 9/26/2007 10:34 AM

Feed material granite. Feed fraction lower limit is equal to css and upper limit is equal to max. feed size. Open circuit.

0

20

40

60

80

100

120

140

160

180

200

220

240

260

280

300

320

340

0

20

40

60

80

100

120

140

160

180

200

220

240

260

280

300

320

Closed Side Setting (mm)

M o tor S ize [k W ]

C80

C100

C106

C110

C125

C140

C145

C160

C200

C96

C3054

C116

Metso Minerals (Tampere) Oy

C Jaw Power factor

JaR JKM 9/26/2007

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1

1.5

2

2.5

3

3.5

4

4.5

5

F50/Setting (mm/mm)

Red Book correction factor

Crushability 20% Crushability 30% Crushability 40% Crushability 50%

(29)

Metso Minerals (Tampere) Oy

C Jaw Product Gradation

JKM 8.8.2005 14:28

Feed material granite. Feed fraction lower limit is equal to css and upper limit is equal to max. feed size. Open circuit.

0

10

20

30

40

50

60

70

80

90

100

0

1

2

3

4

5

6

7

8

9

Square Screen Opening (mm)

Percent

Passing

2

4

8

16

32

64

128

256

1.25 1.6 2 2.5 3.15 4 5 6.3 8 10 12.5 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400

CSS

Metso Minerals (Tampere) Oy

C Jaw Maximum Product Size Correction Factor.

JaR / JKM 8.8.2005

Gradation correction factor is INDICATIVE. Particle size is defined according to particle middle dimension.

0,6

0,8

1

1,2

1,4

1,6

1,8

2

2,2

2,4

2,6

2,8

3

0

1

2

3

4

5

6

7

Feed 80% [mm] / CSS [mm]

Max. product particle size / CSS

Crushability 20

Crushability 30

Crushability 40

Crushability 50

(30)

Metso Minerals (Tampere) Oy

Lifetime of Fixed Jaw (a)

VHL 9/26/2007 11:18 AM

Feed material medium hard granite, specific gravity 2.7 t/m3,

Metso Minerals (Tampere) Oy Ai 0.5, Metso Minerals Abrasiveness 1000 g/ton, SiO2 content 70%, moisture < 2-%.

10000

100000

1000000

0

50

100

150

200

250

300

350

Closed Side Setting (mm)

A

verage Lif

e

ti

me of

Jaw D

ie (

tons)

C116

C80

C100

C106

C110

C3054

C96

Metso Minerals (Tampere) Oy

Lifetime of Moving Jaw (a)

VHL 9/26/2007 11:18 AM

10000

100000

1000000

0

50

100

150

200

250

300

350

A

verage Lif

e

ti

me of

Jaw D

ie (

tons)

C116

C80

C106

C100

C110

C3054

C96

(31)

Metso Minerals (Tampere) Oy

Lifetime of Fixed Jaw (b)

JKM 20.12.04 13:10

Feed material medium hard granite, specific gravity 2.7 t/m3,

Metso Minerals (Tampere) Oy Ai 0.5, Metso Minerals Abrasiveness 1000 g/ton, SiO2 content 70%, moisture < 2-%.

100000

1000000

10000000

0

50

100

150

200

250

300

350

Closed Side Setting (mm)

A

verage Lifetime of Jaw Die (tons

)

C125

C140

C145

C160

C200

Metso Minerals (Tampere) Oy

Lifetime of Moving Jaw (b)

JKM 20.12.04 13:10

Feed material medium hard granite, specific gravity 2.7 t/m3,

Metso Minerals (Tampere) Oy Ai 0.5, Metso Minerals Abrasiveness 1000 g/ton, SiO2 content 70%, moisture < 2-%.

100000

1000000

10000000

0

50

100

150

200

250

300

350

Closed Side Setting (mm)

A

verage Lifetime of Jaw Die (tons

)

C125

C140

C145

C160

C200

(32)

Metso Minerals (Tampere) Oy

Red Book

Research and Test Centre

VHL 24.9.2007

3. GP100 and GP100S Cone Crushers

Capacity

The capacities based on field tests. The capacity, power and pressure values of individual tests

have been analysed together and the corresponding charts are based on this analysis. The

capacity chart includes maximum momentary capacities in following conditions:

The product bulk density is 1.6 t/m

3

.

The feed material is medium hard granite.

The crushing cavity is full all the time.

The feed material is clean and dry.

The feed fraction corresponds to the feed fraction in the footer of the chart.

If the conditions are different from above:

If the feed material bulk density differs from 1.6 t/m

3

, the coefficient for bulk density is

actual bulk density

t

m

_

_

.

1 6

3

.

If the feed material is extremely hard or extremely soft, the capacity is a little bit lower or a bit

higher.

The moisture content of the feed material has an effect in the fine crushing. If the humidity is

higher than 3%, the packing in the crusher is more probable and it decreases the capacity.

In normal situation if the feed includes fine fractions, it increases the capacity up to 30%. If

the feed fraction is extreme coarse, the capacity must be reduced by 10%.

The long-term capacity depends on the feeding system, liners wear and ability of the operating

personnel. In practice these momentary values must be reduced. A normal reduction is about

20-40%.

The capacity lines shown are only valid for setting range by new liners.

Power and Pressure

The power chart and the pressure chart are based on the same field tests as the capacity chart.

Product Gradation and Product Cubicity

The product gradation chart and the product cubicity chart are examples of a couple of tests.

Life Time of Liners

The lifetime of liners depends on the material to be crushed. In this chart values are valid for

medium hard granite (Lokomo Ai = 0.5, SiO

2

content = 70%).

In this chart the lifetime is the medium value of the lifetimes of mantle and bowl liner. The deviation

can be +/-25% of the curve.

Correction Figures

(33)

Metso Minerals (Tampere) Oy

JKM /15.12.04

EXAMPLES OF USING RED BOOK CORRECTION FACTORS

FOR GP-CONE TYPE OF CRUSHER

In this chapter, the use of correction factors has been presented more

precisely. It should be noted that there are still different factors that

effect on the GP-cone performance than just the given ones. For

example, cavity profile type, wear rate of liners, eccentric shaft speed

etc. have always a meaningful effect on GP-cone performance.

Bruno v3 process simulation program uses these correction factors.

EXAMPLE 1: Use of POWER correction factors.

Use of power correction curves has been shown with the help of an example. In this example,

selected crusher is GP300 M, used CSS = 20-mm, and Stroke = 25-mm. To get comparable

power results, GP300 M is used in two different applications, which are:

Application 1 (later case-1): Feed curve 10/100, rock crushability 50%

Application 2 (later case-2): Feed curve 20/60, rock crushability 30%

Both feed curves, case-1 and case-2, have been shown in picture 1. Feed fraction 50%

passing point (F

50

) has been also drawn in figure 1. In this example,

F

50

(case-1) = 70-mm

F

50

(case-2) = 43-mm

Figure 1. Two different feed curves, case 1 and case 2.

The GP300M power draw estimation in given applications starts from the definition of nominal

power draw. This is made with the help of figure 2. Please note that there are separate power

draw figures for each crusher and cavity in Redbook.

In the given example (GP300 M, CSS 20-mm, Stroke 25-mm) the nominal value is 155 kW.

Example, GP300 M Feed Curves

0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 100

Square Screen Opening [mm]

C umulative Passing [% ] CASE 1 CASE 2 Case 2, F50 = 43-mm Case 1, F50 = 70-mm

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Figure 2. Nominal power consumption of GP300 M crusher.

Power correction curve has been shown in figure 3. To find right correction factor, a crushing

work ratio (CWR50) has to been defined. Crushing work ratio is calculated from the formula;

CWR50 = F

50

/CSS.

CWR50 (case-1) = 70-mm/ 20-mm = 3.5, rock material crushability 50%

CWR50 (case-2) = 43-mm/ 20-mm = 2.15, rock material crushability 30%

GP300 M Power

40 60 80 100 120 140 160 180 200 220 240 260 280 12 14 16 18 20 22 24 26 28 30 32 Setting (mm) P ower (kW ) Power Limit Stroke 40 mm Stroke 32 mm Stroke 25 mm 155 kW

Power Correction Factor. GP300-series

0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 R

ed Book POWER correction facto

r Crushability 20% Crushability 30% Crushability 40% Crushability 50% CASE 2 CASE 1 0.90 0.71

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The power consumption estimation is now calculated as a multiplication of nominal power and

power correction factor.

Average power (case-1) = 0.71 x 155 kW = 110 kW

Average power (case-2) = 0.90 x 155 kW = 140 kW

EXAMPLE 2: Use of CAPACITY correction factors.

Use of capacity correction curves has been presented with the help of example. Same cases

have been used as in example 1. Feed fraction 50% passing points were like follows;

F

50

(case-1) = 70-mm

F

50

(case-2) = 43-mm

Before using correction factors, nominal capacity for GP300 M crusher has to be defined

(CSS 20-mm and Stroke 25-mm). Nominal capacity can be read from the GP300 M

performance curve, figure 4.

In this exercise, nominal capacity is;

Capacity = 180 mtph

Figure 4. Nominal capacity curves for GP300 M cone crusher.

GP300 M Capacity 120 140 160 180 200 220 240 260 280 300 320 12 14 16 18 20 22 24 26 28 30 32 Setting (mm) C apacity (MTPH ) Stroke 40 mm Stroke 32 mm Stroke 25 mm 180 mtph

Due to fluctuation of feed gradation, rock material, moisture, wear part-wearing etc., the

recommended electric motor size is approximately 1.2-1.5 times calculated average power.

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Capacity correction curves have been shown in figure 5. To find out the right correction factor,

a crushing work ratio (CWR50) has to be defined. Crushing work ratio is calculated from the

formula;

CWR50 = F

50

/CSS.

CWR50 (case-1) = 70-mm/ 20-mm = 3.5, rock material crushability 50%

CWR50 (case-2) = 43-mm/ 20-mm = 2.15, rock material crushability 30%

Figure 5. Capacity correction factors for GP-cone crusher. Moisture content 0…1,5%.

The capacity estimation is now calculated as a multiplication of nominal capacity and capacity

correction factor.

Average capacity (case-1) = 0.82 x 180 mtph = 148 mtph

Capacity Correction factor. GP-cones

0.6 0.7 0.8 0.9 1 1.1 1 1.5 2 2.5 3 3.5 4 F50/Setting (mm/mm) R

ed Book CAPACITY correction fact

or Crushability 20% Crushability 30% Crushability 40% Crushability 50% 0.99 0.82 Case 2 Case 1

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EXAMPLE 3: Use of product gradation correction factors.

Use of product gradation correction factor has been presented in this section. Previously used

example case has also been utilised in this exercise. Feed fraction 50% passing points in

GP300 M were like follows;

F

50

(case-1) = 70-mm

F

50

(case-2) = 43-mm

Product gradation correction factors have been shown in figure 6. To find right correction

factor, a crushing work ratio (CWR50) has to been defined. Crushing work ratio is calculated

from the formula;

CWR50 = F

50

/CSS.

CWR50 (case-1) = 70-mm/ 20-mm = 3.5, rock material crushability 50%

CWR50 (case-2) = 43-mm/ 20-mm = 2.15, rock material crushability 30%

Figure 6. Product gradation correction factors for GP-cone crusher. Moisture content

0…1,5%.

Product Gradation correction factors according to figure 6 are;

Case 1: 1.03

Case 2: 1.15

This correction factor is used to multiply the setting to change the position of grading curve in

logarithmic figure. Output curves as function of setting for GP300 M has been shown in figure

7.

Product Gradation Correction for GP-Cones

0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1 1.5 2 2.5 3 3.5 4 F50/Setting (mm/mm) R

ed Book correction facto

r Crushability 20% Crushability 30% Crushability 40% Crushability 50% 1.03 1.15 Case 1 Case 2

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Figure 7. GP300 M grading curves.

To find out the effect of feed fraction and material crushability, previously calculated gradation

correction factors are used as follows:

Case 1: 20-mm x 1.03 = 20,6 mm

Case 2: 20-mm x 1.15 = 23 mm

In practise, this means that when the 20-mm setting is used in cases 1 and 2, the product

gradation is little bit coarser in both cases.

Original and Case 2 corrected product gradations have been shown in figure 8.

0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 -4 -3 -2 -1 0 1 2 3 4 5 6 7

Square Screen Opening (mm)

P ercent Passin g Setting 15 mm Setting 20 mm Setting 25 mm Feed 0.125 0.25 0.5 1 2 4 8 16 32 64 0 .0 8 0 .1 0.12 5 0 .1 6 0 .2 0 .2 5 0 .31 5 0 .4 0 .5 0 .6 3 0 .8 1 1.2 5 1 .6 2 2.5 3.1 5 4 5 6.3 8 10 12. 5 16 20 25 32 40 50 64 80 10 0 20-mm setting 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 P ercent Passin g Setting 20 mm Feed 0 .0 8 0 .1 0 .12 5 0 .1 6 0 .2 0 .2 5 0 .31 5 0 .4 0 .5 0 .6 3 0 .8 1 1.2 5 1 .6 2 2.5 3.1 5 4 5 6.3 8 10 12. 5 16 20 25 32 40 50 64 80 10 0 20-mm setting Case 2

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Metso Minerals (Tampere) Oy

Gradation Correction factor. GP-cones

JaR / JKM 2.11.04

Gradation correction factor is INDICATIVE

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

1

1.5

2

2.5

3

3.5

4

F50/Setting (mm/mm)

R

ed Book correction facto

r

Crushability 20%

Crushability 30%

Crushability 40%

Crushability 50%

Crushability 60%

Metso Minerals (Tampere) Oy

Capacity Correction factor. GP-cones

JaR / JKM 2.11.04

Capacity correction factor is INDICATIVE

0.6

0.7

0.8

0.9

1

1.1

1

1.5

2

2.5

3

3.5

4

F50/Setting (mm/mm)

R

ed Book CAPACITY correction facto

r

Crushability 20% Crushability 30% Crushability 40% Crushability 50%

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Metso Minerals (Tampere) Oy

Power Correction GP100-series

JaR/JKM2.11.04

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.3

1.4

1.5

1

1.5

2

2.5

3

3.5

4

4.5

5

F50/Setting (mm/mm)

R

ed Book correction facto

r

Crushability 20% Crushability 30% Crushability 40% Crushability 50%

References

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