1Presentation Title

WHAT IS MATERIAL BALANCE?

MACHINEX Y

Z

X = Y + Z

2Presentation Title

BENEFITS OF MATERIAL BALANCE

•Maximum efficiency of machine•Optimum capacity of machine•Control of product losses•High conformance in process

consistency•Good quality of products•Low maintenance cost•Minimum breakdown•Good housekeeping, safe &

conducive working environment.•No pollution

3

MATERIAL BALANCE DATA

ITEMS % TO FFB

Empty Bunch 20 - 23

Bunch Ash 0.5

Sterilizer Condensate 16

Sterilized Fruitlet 67

Crude Oil 65 - 75

Sludge 40 - 45

Decanter Solid 3

Oil 23

Cyclone Fibre 13 - 15

Nut 10 - 14

Shell 6 - 7

Kernel 5 - 6

Effluent 80

4

CONSUMPTION

Electricity 15 – 20 kW/FFB

Water 1.3 – 1.5 m3/FFB

Steam Turbine 25 – 35 kg/kW

5

BULK DENSITY OF PALM MATERIAL

MATERIAL Kg/m3

Fresh Fruit Bunch 430

Fresh Loose Fruit 655

Empty Bunch 357

Sterilized Fruitlets 640

Presscake ex-Press 303

Nut ex-Depericarper 640

Wet Shell 670

Dried Kernel 622

Wet Kernel 660

Cyclone Fibre 140

Cyclone Dust 529

Waste Water 1014

Crude Oil ex-Press 978

Sludge before Centrifuge 1010

6

EXAMPLE – NUT ELEVATOR

NOTATIONDIMENSION

(mm)

a 250

b 200

c 100

h 150

b

a c

h

CAPACITY OF NUT BUCKET

Volume of bucket

(b + c) x h/2 x a 0.00563 m3

Wt. of nut per bucket

0.00675 x 640 3.60 kg

7

NUT ELEVATOR …… cont

NOTATION DESCRIPTION VALUE

E Mill Capacity 60 tph

F Bucket to Bucket 400 mm

G Gearbox Output 45 rpm

H Driven Sprocket 28 T

I Drive Sprocket 16 T

J Chain Sprocket 12 T

K Chain Size 100 mm

8

NUT ELEVATOR ……cont

DESCRIPTION FORMULA VALUE

Chain Sprocket Speed G x I / H 25.71 rpm

Chain Speed 25.71 x J x K 30,852 mm/min.

No. of Buckets 30,582 x 60 / F 4,628 Bph

Nut Conveyed 4,628 x 4.32 / 1000 / 2 10 tph

% to FFB 10 x 100 / E 17 %

9

NUT ELEVATOR - CONCLUSION

Capacity of elevator is more than sufficient because it can

handle maximum of 17% Nut/FFB ratio against standard requirement of 14%. This also implies that nut spillage at the

elevator is unlikely to occur when there is recycling. In

other words, the elevator can do 70 tph milling capacity.