| Soya beans are members
of the Leguminosae family and belong to the group
of papilionaceous plants. The bean itself is characterised
by a high percentage of high-grade protein and unsaturated
fats. |
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The whole
soya beans are toasted or extracted in full-fat condition.
They are used as an additive for soups, confectionery,
bakery and farinaceous products, in the production of
glutamate and as animal feed.
For the processing of full-fat
or toasted soya, Alpine employs high-speed impact beater
mills such as the Contraplex CW pin mill in combination
with the Alpine Turboplex ATP classifier. With this
machine combination, top product qualities in the fineness
range of d95
< 125 µm, alternatively d95
< 90 µm or 80% < 45 µm, can be produced.
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1 = Feed bin t
2 = Feed metering screw l
3 = Contraplex CW pin mill
4 = Turboplex ATP ultrafine classifier
5 = Rotary valve
6 = Automatic filter
7 = Fan
8 = Control cabinet
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A = Feed produc
B = Coarse materia
C = End product – fines
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Extracted soya in the form of flakes with a feed moisture
value of up to 20% H2O is
comminuted in an energetically favourable manner using
the Zirkoplex ZPS classifier mill. With this machine,
fineness values of < 125 µm, alternatively 96
µm and 65 µm (by merely altering the classifier
speed), can be achieved.
If hot air is supplied, the end product can be dried in
the machine to a final moisture value of < 10% H2O.
Alpine particle distribution diagram (RRS diagram) ZPS |
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|
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Red = 90 µm, green = 125 µm
If the feed moisture value is above 20% H2O, Alpine's
LGM long gap mill – which is operated with hot
air – is the ideal choice.
The commonly requested fineness requirement of <
125 µm can be achieved with this machine.
For higher fineness values, an Alpine Stratoplex ASP
classifier is installed downstream of the long gap mill.
Use of the Stratoplex classifier makes a concentration
of the protein also possible. By reducing the content
of fibres, the common gastric effects caused by fibros
materials is minimised.
The coarse material fraction (fibres / roughage) can
then be processed, for example, in an extruder to produce
animal feed pellets.
Alpine particle distribution diagram (RRS diagram) LGM
+ ASP
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|
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| Blue
= 90 µm, red = 150 µm |
Legend
1 = Separator by customer
2 = Feed metering screw
3 = Rotary valve
4 = Long gap mill LGM
5 = Heat exchanger
6 = Suction filter
7 = Automatic filter
8 = Fan
9 = Stratoplex ASP classifier
10 = Automatic filter
11 = Control cabinet
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A = Feed material
B = Coarse material
C = End product – fines
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