Düsseldorf . Deutschland
Steam Peelers,
Combinations of Mechanical and Steam Peelers
Two
Possibilities for Economic Optimisation of Steam Peeling
Lines
for
Peeling Root Vegetables and Tubers
Steam
peelers generally consist of a steam vessel in which the
outer layer of the tubers and root vegetables to be peeled
are “parboiled” (slightly steamed) for a short time.
After that, the softened outer layer is usually
brushed off. This
is often followed by a washing machine, in which any parts
still clinging to the vegetables are washed off.
Steam
peelers are valuable aids in the food manufacturing industry
when it comes to removing the peel from larger quantities of
tubers and root vegetables.
But
steam peelers cannot cope with every situation in most
companies – particularly not when there are deep damaged
spots, deep-set “eyes”, “scabs”, rotten spots, and
diseases on the tubers and root vegetables.
The tubers and root vegetables leaving the steam
peeler are then not clean enough – even when one steams
them longer.
I.
Special mechanical DORNOW post-treatment peelers,
integrated in steam peeling lines
The
above-mentioned damaged or imperfect tubers and root
vegetables are sorted electronically or by hand and then
peeled again in special mechanical post-treatment peelers (several
times if necessary).
Economic
Advantages:
| 1. |
The steam peelers can be run at maximum capacity. – High capacity of the steam peeler, and add to that the capacity of the post-treatment peelers! |
| 2. |
The “good” tubers and root vegetables thus don’t stay in the steam vessel any longer than necessary and peeling produces minimum waste. Waste is minimised! |
| 3. | Even the “bad” goods are not steamed longer, which wouldn’t make them any cleaner anyway. No unnecessary loss of energy! |
| 4. |
The goods receiving post-treatment go, after being sorted electronically or by hand, into the special DORNOW roller post-treatment machine, which largely removes the damaged layer in a very short time. – Quality improvement! Higher overall capacity of the combined peeling line! |
| 5. |
Even goods which one would normally throw away as waste can be sent through the post-treatment machine. By doing this, one can normally “rescue” up to 50% of the very bad waste products and peel them so they become “good produce”. Higher yields! |
| 6. |
The post-treatment machines can be adjusted so that the goods leaving them have a smooth surface. The visible surface is comparable to the appearance of steam-peeled goods. – The steam-peeled or mechanically-peeled goods can be put together again, e.g. for packing in jars. – No loss in quality! |
2.
Special Dornow roller peelers at the end of steam
peeling lines as an integral component of these plants
For
many products, it makes sense to set up special DORNOW
roller peelers as an integral component at the end of steam
peeling lines. After
the partial removal of the “parboiled” layer (mostly
with a machine using brushes), all tubers and root
vegetables go through a DORNOW roller peeler specially set
up for this purpose.
Possibility
1:
Good-quality tubers and root vegetables can be quickly sent
through the roller peeler (by adjusting the in-built screw
conveyer to fast!). One
then sets the peeling rollers to slow, so that their mode of
operation (= speed) is not aggressive.
Possibility
2:
If the tubers or root vegetables have deep damaged spots,
deep-set “eyes”, rotten spots or even scabs, they will
stay longer in the roller peelers and the peeling effect is
adjusted to be more aggressive!
Economic
Advantage:
With
the combination described above, the percentage of waste and
the cleanliness of the end product can be controlled better.
What is achieved is a minimum percentage of waste
whilst also attaining a high degree of cleanliness!
- The inclusion of the post-treatment plant improves
these standards!
Capacities of DORNOW Roller Peelers:
There are DORNOW roller peelers with very high capacities: with internal spaces of up to approx. 2500 mm in diameter!
This
paper contains non-committal notes. We do not lay claim to
completeness. Alterations reserved.
Our order confirmation, accepted by our customers, is in
effect upon delivery. The presentation of a new edition of this treatise will
substitute for any previous versions.
Copyright
by DORNOW food technology GmbH, D-40549 Düsseldorf
DORNOW on the Web: www.dornow.de
Q 172 E1
Dornow food technology GmbH,
Willstätterstr. 12,
D-40549 Düsseldorf - Germany, USt-Id.-Nr. DE119264470
Tel. ++49-211-527060, Mobile ++49-172-2614932,
Fax ++49-211-596883, email office@dornow.de,
Internet: www.dornow.de,
Commerzbank
AG, Konto-No. 1452333, BLZ 300 400 00, Managing Director Karl-Dietrich
Dornow, Amtsgericht Düsseldorf, HRB 22597