World Grain - April 2007 - 72
FEEDOPERATIONS
reducing ingredients, since you get
more uniform performance and greatly
reduced power consumption when the
incoming ingredients fall into a narrow
band of particle size range.
USING SCREENS
Secondly, when examining the performance of those hammermills that
form part of a flow sequence in postgrind mills, you often find - contrary
to popular belief - that removing fine
material by diligent use of a screen before grinding actually enhances hammermill performance and reduces power consumption.
This is principally due to the effect
that removal of fine material has on air
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* roller mill brushes
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Mill brush manu facture r
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Johann-Sewerin-Str. 8
D-33330 Guetersloh
Fax:
E-Mail:
+49(0)52 41-203 21
info@fiIip-gmbh.com
Internet: www.filip-gmbh .com
Outside Germany: We will be glad
to name our
local representative!
flow through the mill. Fine particles
are heavy and require air at significant
velocity to assist movement through
the mill. Remove the fine product and
the mill performance becomes cleaner
and more efficient. Investment in good
screening prior to product entering
the hammermill is a sound economic
practice.
Using screens before hammermills
also enables you to decide what grist
particle size range you wish to adopt
further along in the mill.
I have done a significant amount of
Fine particles are heavy and
require air at significant velocity to assist movement
through the mill. Remove
the fine product and the mill
performance becomes cleaner
and more efficient.
work comparing the particle size ranges of different types of rations heading
for the pellet mills with the resultant
horsepower consumed at the pellet
mill. While steam acts as a lubricant
at the die, as well as being a crucial
part of the conditioning process, I have
found that under similar steam conditions relatively fine grist with a narrow
particle size range does not require as
much power to produce a pellet as does
relatively coarse grist. Essentially, the
finer you grind, the less power is used
at the pellet mill. However, as with any
generalization, there are significant exceptions to the rule.
Using particle size monitoring on
a daily basis will tell you a great deal
about your mill. I like to sample a
single ingredient passing through the
hammermills every day. By carrying
out a sieve analysis each day at the
same time, when climatic conditions
will not vary greatly, it is possible to
obtain information about the wear on
beaters and screens. This information
can help determine when to change
For more information, see Page 98.
72
April 2007 / World Grain / www.World-Grain.com
http://www.filip-gmbh.com
http://www.World-Grain.com
World Grain - April 2007
Table of Contents for the Digital Edition of World Grain - April 2007
Contents
World Grain - April 2007 - 1
World Grain - April 2007 - 2
World Grain - April 2007 - 3
World Grain - April 2007 - Contents
World Grain - April 2007 - 5
World Grain - April 2007 - 6
World Grain - April 2007 - 7
World Grain - April 2007 - 8
World Grain - April 2007 - 9
World Grain - April 2007 - 10
World Grain - April 2007 - 11
World Grain - April 2007 - 12
World Grain - April 2007 - 13
World Grain - April 2007 - 14
World Grain - April 2007 - 15
World Grain - April 2007 - 16
World Grain - April 2007 - 17
World Grain - April 2007 - 18
World Grain - April 2007 - 19
World Grain - April 2007 - 20
World Grain - April 2007 - 21
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World Grain - April 2007 - 27
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World Grain - April 2007 - 30
World Grain - April 2007 - 31
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World Grain - April 2007 - 33
World Grain - April 2007 - 34
World Grain - April 2007 - 35
World Grain - April 2007 - 36
World Grain - April 2007 - 37
World Grain - April 2007 - 38
World Grain - April 2007 - 39
World Grain - April 2007 - 40
World Grain - April 2007 - 41
World Grain - April 2007 - 42
World Grain - April 2007 - 43
World Grain - April 2007 - 44
World Grain - April 2007 - 45
World Grain - April 2007 - 46
World Grain - April 2007 - 47
World Grain - April 2007 - 48
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World Grain - April 2007 - 50
World Grain - April 2007 - 51
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World Grain - April 2007 - 53
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World Grain - April 2007 - 55
World Grain - April 2007 - 56
World Grain - April 2007 - 57
World Grain - April 2007 - 58
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World Grain - April 2007 - 60
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World Grain - April 2007 - 63
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World Grain - April 2007 - 73
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World Grain - April 2007 - 96
World Grain - April 2007 - 97
World Grain - April 2007 - 98
World Grain - April 2007 - 99
World Grain - April 2007 - 100
https://digital.world-grain.com/sosland/wg/world-grain-january-2025
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https://digital.world-grain.com/sosland/wg/world-grain-january-2022
https://digital.world-grain.com/sosland/wg/world-grain-december-2021
https://digital.world-grain.com/sosland/wg/-world-grain-november-2021
https://digital.world-grain.com/sosland/wg/world-grain-october-2021
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https://digital.world-grain.com/sosland/wg/2021_01_01
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