Section 4 - Scratch and Sizing Systems Flashcards
1
Q
Draw the scratch system
A
page 27 fig 11
2
Q
What is the scratch system fed from
A
Purifiers
3
Q
Where does the scratch system send stock to
A
Back to break rolls, sifters and purifiers
4
Q
What does the scratch system separate
A
Particles of bran and endosperm which are still stuck together after passing through the break system
Particles that are too small to have been overtailed to next break but not clean enough to go to reduction
5
Q
What is the surface on a scratch system
A
1mm/100kg/24hours for a single X passage
6
Q
What is the fluting on a scratch system
A
10-11 flutes per cm
7
Q
What is the disposition of a scratch system
A
sharp to sharp
8
Q
What is the differential of a scratch roll
A
2.5:1
9
Q
A
