Bond Ball Calcs

English F!" #ic$%ns S& WI" '(h)s* + c$i*ical s,eeMill ID" .* Ball T%, Si/e" inches0 Ball T%, Si/e" ## Me*$ic F!" #ic$%ns S& WI" '(h)#* + c$i*ical s,eeMill ID" # Ball T%, Si/e" ## Ball T%, Si/e" inches

BOND BALL TOPSIZE CALCULATION FOR WET OVERFLOW MILLS case 1 case 2 1496

1550

[(√  √   F   K 

S g W  i ( %C  s √ 3. 281

3.17

2.57

18.50676

14.2

77.2

76

12.6

19.3

1. 1.3

1.0

32.5

26.4

1870

1550

2.85

2.57

Sg = ore !e"i#i" gra$it%

15.66

15.6

& = &riti"al !eed

73

76

5.88

5.88

30.4

26.4

1.2

1.0

 

B=

where B

3

= ball dia ( mm )

F = F80 ( mm Wi = Work ork Ind In d

'

= 'iameter inide hell(

(

= 350 #or )et o$er#lo) = 330 #or )et grate di" = 335 #or dr% grate di"

S g W  i ( %C  s √  3. 281  D

)]

´ 2 5 . 4

dia ( mm )

  F80 ( mm ) = Work Index ( kWh/t ) !e"i#i" gra$it% "al !eed eter inide hell( m ) #or )et o$er#lo) mill #or )et grate di"harge mill #or dr% grate di"harge mill