A feed mill needs to produce pellets in a hygienic way with the least costs and the highest efficiency. This cannot be realised without the close relationship between the operators in the field and the engineers at the drawing table.

1. Digital Re-print - July | August 2010
Making Feed Pellets
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2. Feed Pellets Feature Feature Feed Pellets
have to be by-passed or discarded
before pelleting.
“CPM was at the CPM has overcome this problem
forefront of this by developing the ‘Hot Start Mixer’,
which functions as a buffer in the
development start-up of the conditioning process.
with the The paddles and screw in the
introduction of first section of the hygieniser at start-
the hygieniser up turn in reversed direction until
the mash has reached the required
or super temperature and then the direction
conditioner” is changed and the mash can flow
through the hygieniser.
There is no longer any need for a
by-pass and the full batch of feed can
treatment (kneading and shearing) and ther- ditioner before pelleting and it is much be used without chance of recontamination.
mal treatment (time/temperature). cheaper than an expander, which is also
Especially the last feature has become often used. Specialist in pelleting
essential in feed manufacturing. Table 1 shows die differences between an Around 50 percent of all pellet mills
Making
Feed Pellets
Through higher temperatures the feed expander and die hygieniser. used in the world are made by CPM. So the
is hygienised and bacteria are already company, indeed, can call itself a specialist
killed in the conditioner. CPM was at the Hot start mixer in pelleting.
forefront of this development with the One small thing was still a problem: when Pelleting is not just the use of a machine
introduction of the hygieniser or super starting the conditioning process the first that turns ground and mixed ingredients into
conditioner. This piece of equipment has approximate 100 kg of a new run did not pellets, it is a process and begins after the
shown to be an extremely efficient con- reach the required temperature and would grinding process with conditioning, followed
A
feed mill needs to produce our industry - which is not specifically reduces electrical power use and reduces
pellets in a hygienic way with known for its innovative power," says the wear of dies and rollers. Furthermore, with
the least costs and the highest
efficiency. This cannot be realised
company. conditioning more difficult (cheaper and/or)
ingredients can be used. Since 1883
Roll Speed Since 1883
Quick die change
without the close relationship between Conditioning with hygieniser Conditioning is a combination of moisture
the operators in the field and the CPM is active in the grinding and pelleting addition (steam and/or water), mechanical
engineers at the drawing table. section of the Higher capacity & better quality with Replace your die in less then 20 minutes.
feed manufac- Table 1: Comparison of expander and CPM hygieniser as a
Through this cooperation equipment turing process. conditioner before pelleting Roll Speed Measurement Use the best die for each purpose
manufacturer CPM Europe, in Amsterdam, Before pel- Expander CPM hygieniser
• Enhanced control over pellet quality • Easy
The Netherlands, has been able to launch leting the feed
many ‘firsts’ which have later been adopted mash needs • Improved steam addition control
• Safe
Maximum formulation flexibility Formulation fat level 8% max
and copied to become industry standards. to be treated • Quick
Plant operators working in the feed before it enters
250 kW drive installed 2.2 kW drive installed • No more overloads
12 kWh/tone average (expander + 8 kWh per tone average (hygieniser + • Mechanical
industry often consider the handling of the pellet mill. • Cost effective
their pelleting equipment to be an art. This condi-
pellet mill) pellet mill)
• Cost saving
Manufacturers of these machines con- tioning of the $0.75 per tone wearing items No wearing items
- Quick die change clamp
sider their businesses to be closely related mash has sev- Increased parts wear with limestone - Pneumatic operated
to science. But this science can learn from eral advantages. or oyster shell die hoist
- Lineator
the pelleting ‘artists’ by developing and Proper condi- No sensitivity for abrasive elements in
implementing demands and views from tioning ensures in formulation formulation
practice. a better pellet High skill required to operate Very simple to operate
The engineers at CPM Europe are the quality (hard- Down time risk due to blocking No down time risk
last ones to deny that practice is closely ness, durability) High starch formulation increases No sensitivity for high starch
intertwined with their work on the compu- resulting in bet- blocking risk formulations
ter controlled drawing programs. ter conversion Moisture content in pellets difficult to Moisture content in pellets simple to
H2X/2100155
H2X/2100155
"Our close relationship between prac- rates with the maintain maintain
tice and our ability to translate practical animals. High temperatures effect sensitive Simple and accurate temperature
improvements into factual equipment, has Conditioning elements like vitamins control
delivered us almost always a competitive improves pellet
Controlled product retention time for CONTACT CPM/Europe BV Distelweg 89, 1031 HD Amsterdam, The Netherlands, Phone +31 20 494 61 11, Fax +31 20 636 42 94, info@cpmeurope.nl CONTACT CPM/Europe BV Distelweg 89, 1031 HD Amsterdam, The Netherlands, Phone +31 20 494 61 11, Fax +31 20 636 42 94, info@cpmeurope.nl
advantage which is especially valuable in mill capacity, Product retention time is not controlled optimum salmonella destruction ■ HIGH PERFORMANCES ■ LOW COST MAINTENANCE ■ MAXIMUM SAFETY ■ LONG LIFETIME ■ WWW.CPMEUROPE.NL ■ HIGH PERFORMANCES ■ LOW COST MAINTENANCE ■ MAXIMUM SAFETY ■ LONG LIFETIME ■ WWW.CPMEUROPE.NL
18 | July - august 2010 Grain &feed millinG technoloGy Grain &feed millinG technoloGy PREVIOUS PAGE NEXT PAGE July - august 2010 | 19

3. Feed Pellets Feature
ity without stopping With this system two people can
the production. remove a die in less than four minutes
Energy efficiency and the same people can fit a new die
is also depending in less than five minutes. The quick die
on the method of change clamp can also be mounted on
power transmission existing machines that have been supplied
in die pellet mill. by CPM in the past 10 years.
For this reason CPM
pellet mills oper- Roll speed measurement
ate with a gear box The latest innovation is the roll speed
instead of double measurement, which has been in opera-
V-belt drive. tion for testing over one year and is now
Gearbox trans- mature to sell on the CPM Pellet mills.
mission has a high The new integrated roll speed
efficient power trans- measure ment device works with very
mission. For a 250kW little maintenance and high accuracy.
with an operating It was observed that with clean die
time of 6000 hours and rollers, the roll speed measurement
per year and an ener- allowed an automatic 'zero-positioning'
gy price of eight euro- of the Lineator. Until now this 'zero-posi-
cents per kWh this tioning' proved to be a rather subjective
would mean an ener- interpre tation by various operators.
gy cost of €120,000. Different operators can 'pre-load' the
At 11 percent higher rollers differently against the die to set
efficiency this would the zero-position. With the roll speed
mean a saving of measurement the zero-position is set at
by die actual pelleting and then cooling of 13,200 in the advantage of a gear box the moment both rollers are rotating at
the hot pellets and where applicable the drive. nominal speed.
addition of fats. In practice, influencing the pellet qual-
Quick die change ity is reached by using a thicker die or
Pelleting is also about energy Every pellet plant operator knows the BOA-compactor or expander.
consumption. burden of changing a die. Not only is it Now CPM introduced another option
The way the die and the die rolls are a heavy and time consuming job, it also with roll speed measurement system
positioned largely deter mine how much adds considerably to the down-time of together with a Lineator. The operator
energy can be added to the prod- the plant. can safely move the rollers from the
uct. There is a The CPM engi- die and creating a “variable die” and so
close relationship neering group influence the pellet quality, all this can be
between energy in Amsterdam done due to the roll speed measurement.
consump tion and has developed a The roll speed measurement continu-
pellet quality. quick die change ously measures the roll speed so that it
The more ener- system for its 32" stays above a certain speed, so that the
gy is put into the and 36" pellet die doesn’t choke.
pellet the better mills. Due to this “variable die” specifications
its quality will be. The objective less die changes are needed and the dif-
At the pellet mill was to have the ferent batch are made with the optimal
this is limited to pellet mill up and “variable die.”
maximum 20kWh/ running with a
tonne. new die only 30
The consump- minutes after the
tion of energy is end of the pre- More inforMation:
also dependent on vious run. This CPM Europe B V
the roller distance to the die. means that for the actual (hot) die change Distelweg 89
An increase in roller distance will only 20 minutes are being reserved. Amsterdam, NL-1031 HD
result in higher energy consumption. To To meet this objective CPM installed The Netherlands
Tel: +31 20 4946111
be able to manage this process CPM a pneumatic die hoist, automatic knives Fax: +31 20 6364294
developed the lineator, which enables positioning, automatic roller adjust type Email: info@cpmeurope.nl
die operator to adjust the roller distanc- lineator, 18 segments die clamp type bear Website: www.cpmeurope.nl
es while pelleting and thus give himself claw and pre-assembled die with stiffen-
the opportunity to influence pellet qual- ing ring and rotary cone.
20 | July - august 2010 Grain &feed millinG technoloGy PREVIOUS PAGE NEXT PAGE

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