Ball Mill

SiO2/Silika specific gravity = kapasitas ball mill = actual daya =

y =

-0.000000049 6.2 g/cm^3 = 20 ton/jam = 370 hp

0.001346248 2.094957579 0.223990381 lb/inch^3 12.444 lb/det

Diameter Rata - Rata

1 2 3 4 5 6 7 8

Mesh .-1/2 in + 3/8 in .-3/8 in +3 mesh .3 mesh + 8 mesh .-20+48 .-48+65 .-65+100 .-100+200 .-200

inch

cm

0.448

1.138

0.317

0.805

0.178

0.452

0.0222

0.056

0.010

0.025

0.007

0.018

0.0044

0.011

0.0029

0.007

1 inch =

mikrometer  

2.54 cm

11379.2 8051.8 4521.2 563.88 251.46 177.8 110.49 73.66

n

2.09556 2.09538 2.09520 2.09499 2.09497 2.09497 2.09496 2.09496

Spesific Surface of Quartz 12    n    o    i    t    c    a    r    F    s    s    a    M    e    v    i    t    a     l    u    m    u    C

10 8

y = -0

6 4 2 0 0

5000

10000

1500

Diameter Average

Fraksi Massa

Feed (% massa) 25 27.3 19.2 8.9 0 0 0 0

Produk (% massa) 0 0 0 0 2.1 8.2 21.9 67.8 Total =

Rittingan number = A1 A2 Δ A

= = =

W perhitungan = W actual = Efisiensi =

=

Specific Surface

Feed Ball Mill Produk Ball Mill Feed Ball Mill

Produk Ball Mill

0.25

0

31.3

0

0.273

0

48.3

0

0.192

0

60.5

0

0.089

0

225.0

0

0

0.021

0

119.038

0

0.082

0

657.378

0

0.219

0

2825.226

0

0.678

0

13119.873

0.804

1

365.2

37.7 inch^2/ft-lbf   4544.446 inch^2 208089.949 inch^2 203545.503 inch^2 5399.085 ft-lbf 370.00 hp 0.0265 2.65 %

=

9.816518131 hp

16721.514

efisiensi ?

.000000049x 2 + 0.001346248x + 2.094957579 R² = 0.958625656

Diameter Average 20000

25000