ZPS APP ClassifierMills
Transcript of ZPS APP ClassifierMills
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POWDERAND
PARTICLEPROCESSING
M ULTIPROZESSANLAGEN
FILMRECYCLING
PROCESSES
Hosokawa Alpine is a member of the Hosokawa Micron Group, responding to
global need s through emphasis on materials science and engineering. The
Group is an international provider of equipment and technology for powder
and particle processing, plastics processing an d confectionery products . The
Group maintains facilities for research, engineering, manufacturing and
service in each of th e world's major industrial markets .
© Hosokawa Alpine 2004. Printed in Germany.
HOSOKAWA
ALPINE Aktiengesellschaft &Co. OHG
P.O. Box 10 11 51
D – 86001 Augsburg, Germany
Delivery address:
Peter-Dörfler-Straße 13 – 25
D – 86199 Augsburg, Germany
Phone. : +49 (0) 821 /59 06-0
Fa x : + 4 9 (0 ) 8 21 /5 7 3 5 7 8
E-mail: [email protected] .com
www.alpinehosokawa.com
Subject to chang e without no tice.
All information in this brochure is purely
informative and non-binding. Our quotations are
authoritative with regard to orders.
A L P I N E C L A S SI F I E R M I L L S
Z I R K O P L E X ® Z P S A ND P O W D ER P LE X ® A P P
PROCESS TECHNOLOGIES FOR TOMORROWSM
Z P S / A P P 0 2 . 0 4 / 1 e
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PROCESS TECHNOLOGIES FOR TOMORROWSM 2 /3
WE ARE YOUR COM PETENT PARTNER
POWDER & PARTICLE PROCESSING
Formed in 1898, Hosokaw a Alpine's range
includes the development, design and
manufacture o f components and t urnkey
systems to produce powders, granules and
bulk materials for the chemical, pharmaceu-
tical, food, minerals, metals and recycling
industries. Whether the task is comminution,
classification, dust removal, handling,
meter ing , weigh ing or packing, you wi l l
a lways f ind Hosokawa Alpine to be a
competen t and innovat ive par tner .
Hosokawa A lpine h as been in bu siness for over 100 years. Regardless of
the field , i.e. blow n film pro cessing or powd er & part icle processing, we are tradit ional
t rendset ters on the market . The dr iv ing force behind ref in ing our technologies is the
experience we gain an d the challenges we face as market leaders
DIVISIONAL STRUCTURE
The na me ALPINE stands fo r compete nce in
all areas of comm inution technolog y. The
long years o f c lose cooperat ion between our
engineers and the development depar tments
of our customers have made us leading spe-
cialists for pow der and particle processing
technology around the wor ld . Because our
aim is to offer our customers the very best in
professional and accomplished advice tai-
lored to their specific branch of industry, our
pow der and particle processing division is
divided into five subdivisions:
BLOWN FILM PROCESSING
As a specialist for f ilm blowing lines to
manufacture thin plastic film, Hosokawa
Alpine ranks among the world's foremost
suppliers in this market segment.
The vast fund of know -how, the high
qual i ty s tandards , the con t inuous innova-
t ion and h igh deg ree o f re l iabi li ty are al l
reasons for the cons tan t growth o f th is
business division.
EVERYTHING FROMONE SINGLE
RESPONSIBLE SOURCE.
- PHARMA &FOOD
The manufa cture of powd ery substances for
the pharmaceutical industry is a job for
specialists. Hosokawa Alpine confo rms with
international pharma standards and
supplies a wide range of products and
performance, including special processes for
the food industry. Whatever method of size
reduction is used, we are the specialists.
- CHEMICALS
The rang e of chem ical products is just as
wide and d iverse as are the d i f feren t
demands on the proper t ies o f pigments or
pow ders. We supply process-technological
solutions for the chemical industry as a
single-source pa rtner. Our comprehe nsive
range o f products means that w e are able
to meet a vas t number o f d i f feren t
requirements. We also offer competent
advice on solutions for basic chemical
products and auxiliary products, as well
as for toners, paints, pigments, herbicides
or fertilisers.
- MINERALS & METALS
We supply complete dry and wet processes
with sta te-of-the-art mills and classifiers for
processing mineral raw materials. Our
machines and systems for fillers, ceramic
raw mater ials, metal l ic compounds and
al loys al l meet the h igh demands set by
our customers. We are not just manufac-
turers, however, but also competent
par tners for the engineer ing and d es ign o f
complete turnkey systems.
- RECYCLING & GRAN ULATORS
We design, build and deliver complete
granulator systems to include all necessary
system components. Whether the feed
mate rial is injection mou ldings, sprues,
film webs or film edge trims, our granula-
tors are des igned for even the most
difficult cutting ta sks. In add ition, we also
supply in-line recycling solutions for rub ber
or cable which are ta i lored to the
individual requirements.
- SERVICE
Our service division g ives support during
the entire lifetime of any Hosokawa Alpine
system or machine. Our extensive range of
services includes spare parts supply,
maintenance, inspection, servicing, repairs,
general overhauls, system upgrading, and
training. A fairly recent addition to our
portfolio of services is a range of
pre-owned ALPINE machines.
No matter what pa r t o f the wor ld you are
in or what your processing challenge is,
Hosokawa Alpine is never far aw ay w i th the
best solutions and support. Our range of
services includes project management,
installation, commissioning, training,
main tenance and system upgrades .
H OSO K AW A A L PI N E
O N E C O M P A N Y - T W O B U S I N E S S D I V I S I O N S
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50 ZPS
P RA CTI CA L P O WD ER F IN EN ES S % < µm * FE ED
EXAMPLES Measured point of particle size distribution kg /h
Minerals
Limestone 97% < 8 50% < 3.5 2 - 12.5
Limestone (soft, crystalline) 97% < 15 50% < 4.5 8 - 10
97% < 120 50% < 9 30
Talc 97% < 12 50% < 7.5 10 - 15
Graphite 97% < 70 50% < 22 8 - 10
Chemicals
Aluminium hydroxide 97% < 22 50% < 9 30 - 35
Lead sulphate 97% < 8 50% < 2.6 10 - 15Calcium stearate 97% < 11 50% < 4.7 10 - 15
Copper oxide chloride 97% < 12 50% < 4.8 15 - 20
Phenolic resin 97% < 60 50% < 24 20 - 30
Tricalcium phosphate 97% < 9 50% < 3 .2 5 - 10
Zinc chromate 97% < 4 50% < 1 .6 3 - 5
Zinc phosphate 97% < 12 50% < 5.9 15 - 20
Foodstuffs
Lactose 97% < 25 50% < 8 20 - 25
Starch derivatives 97% < 110 50% < 50 20 - 25
Sugar 97% < 15 50% < 5.2 3 - 5
* All values are non-binding reference values
LABORATORY M ACHINE SIZES50 ZPS AND 70 ZPS
PROCESS TECHNOLOGIES FOR TOMORROWSM 4 /5
OVERVIEW
As the na me implies, a classifier mill consists of a mechanical impact
mill and a n air classifier. With these ma chines, the end-product fine-
ness is dictated by the air classifier, independent of t he conditions in
the grinding zone, meaning that the product quality is extremely
constant. The simple method of adjusting the f ineness as a function
of the classifier speed ma kes the classifier mill extremely flexible in
app lication . The Zirkoplex ZPS classifier mill works to t his principle.
If a high deg ree of flexibility is not required, the classifying w heel can
co-rotate with the grinding disc, without having to accept any trade-
offs in prod uct qu ality. This describes the Po wderplex APP machine,
CLASSIFIER MILL POWDERPLEX® APP
The simple and rob ust classifier mill for high volumes of medium
fineness. Single-rotor classifier mill for a pow der fineness betw een
d97 = 20 and 200 µm with a n integrate d air classifier designed for
a high precision of cut for fine products without spatter grain.
TABLE RO LLER MILL AWM WITH
INTEGRATED C LASSIFIER TOP S ECTION
For an end-product fineness of between
approx. 10 and 100 µm. Preferred fineness
range d97 = 50 µm.
- See separate b rochure.
CLASSIFIER-
MILL ZIRKOPLEX® ZPS
The flexible classifier mill for for high f ineness
values, cool grinding and varying production parameters. Impact
beat er mill with a single- or multi-wheel Turboplex classifier inte-
grated into the top section for exact top-size limitation.
FLUIDISED BED OPPOSED JETMILL
AFG OR TTG
Classifier mill for ma nufacturing ultra-pure
powd ers with steep pa rticle size distributions
and a sharp top-size limitation in the
range between < 5 and 200 µm.
- See separate b rochure.
which is somewhat simpler in design than the ZPS because only one
drive is necessary.
Alpine has created new sta ndards w ith their Zirkoplex ZPS and
Powd erplex APP classifier mills in terms of a chievable absolute fine-
ness, sharp top-size limitation, energy
ut i l isat ion and wea r-res is tance .
10
10 100 1000
20
30
40
50
60
70
80
90
100
ZPS
UPZ
Particle size distribution
Particle size distribution d in µm
T h r o u g h p u t D i n %
CLASSIFICATION
OPPOSED JETMILLING INFLUIDISED BED
SPIRAL JETMILL
COMBINED IMPACTGRINDING/CLASSIFICATION
CONTINUOUSIMPACTGRINDING
ALPINE MULTI-PROCESSING SYSTEM ALLOWS 5 PRO CESSES
(ALSO SU ITABLE FOR CIP/SIP)
I t on ly takes a few minutes to convert the mach ine to exact ly that
process which the respective prod uct calls for.
A) Combined impa ct grinding/classifying (ZPS) for mat erials to a
Mohs' hardness of 3.5 and a fineness between 8 and 120 µm.
B) Opposed jet milling in fluidised bed (AFG) for mat erials to a
Mohs' hardness of 10 and a fineness between 2 and 40 µm.
C) Continuous impact gr inding (UPZ) for mater ials to a Mohs '
hardness of 3 and a fineness between 10 and 1500 µm
(dependent on design).
D) Spiral jet mill (AS) for a fineness betwe en 5 and 30 µm.
E) Ultrafine classifying (ATP) for materials to a Mo hs' hardness
of 10 and a f ineness between 2 and 120 µm.
With th is concept, the installat ion table,
meter ing equipment , gr inding ai r
and bearing ri nsing elements, drive,
produc t col lec t ion f i l t er , fan and
electric contr ol unit can all be used joint ly
fo r several processes.
Zirkoplex Classifier Mill Type ZPS 50 70
End-product fineness d97 = [µm] 8-100 8-100
Sca le-up f a ct o r F = a ppro x. - 0,15
Bea t er unit Ø [mm] 100 140
Ma x. mill speed ma x. [rpm] 22000 16000
Mill d rive [kW] 1 2,2
Possible Combinatio ns
UPZ ZPS AS AFG ATP
100 50 100 100 50
– 70 140 140 70
160 100 200 200 100
POWDERAND
PARTICLEPROCESSING
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PROCESS TECHNOLOGIES FOR TOMORROWSM 6 /7
POWDERAND
PARTICLEPROCESSING
ZIRKOPLEX ® ZPS CLASSIFIER MILL
PRINCIPLE OF OPERATION
The size-reduction element s comprise an
impact beater unit plus a stationary triangu-
lar-ribbed grinding track that surrounds the
grinding chamber. The impact b eater unit is
designed such that the grinding process is
extremely gentle a nd energy-saving. The
impact beaters themselves are exchangea-
ble. The grinding track is in segmented
design . A Turbop lex ultrafin e classifier with
one or more horizontally arranged classify-
ing wheels is integrat ed into the top section
of th e mill. The feed product, conveyed to
the machine by a system-sided fee d metering
unit, enters at the filling socket and is inter-cepted by the impact beater s o f the beat er
disc. The combined a ction of the beat ers and
the grinding track serves to comminute the
product, which is then transported via the
Classif ier mill for f ine grindi ng with in tegrat ed classif ier for
soft materials to a M ohs' hardness of 3.5.
Spatter-grain-free end pro ducts with steep part icle
size distribut ions at precise top-size limitat ion
classifier to th e product discharge. The a ir
introduced into the machine at the air inlet
socket cools, transports and also classifies
the feed product in the integrated classifier.
Dependent on the problem specification,
the feed prod uct can also be introduced into
the ma chine entrained in the air. In this case,
the intake socket is either blanked off or is
not a vailable at all. The fines, extracted in
accordance with t he cut point set at the clas-
sifier, are d ischarged via the fines discharge.
The end product must be separa ted from t he
air in a dow nstream, system-sided collection
device. Particles that a re too coa rse are rejec-ted by the classifying wheel and are commi-
FEATURES
- Optimum accessibility.
- Easy cleaning; a big plus if the product
is changed o f ten .
- Designed with sticky products in
mind that tend to depos i t .
- Special f luid isat ion equipment
at critical points.
- Depos it- free a nd g en t le process ing o f
pigments, w ax, resins,
powder coat ings , e tc .
- High air f low rate = coo l gr inding.
- Excellent precision of cut.
- Stable classifying characteristics:
once set, the classifying finenessremains constant.
PRODUCTEXAMPLES
- Synthetic resins (epoxy, phenolic, acrylic,
polyester resins), wa x
- Plastics such as Teflon h alf-polymers
- Precipitated produ cts such as SiO2,
Al2O3, aluminium hydrate
- Sugar , lac tose , cocoa b lends
- Thickening age nts, gelat ine, alginat e
- A l g a e
- Animal feed
- P i g m e n t s
- Protein shifting in flours
- Phosphate
- PVC
Zirkoplex Classif ier M ill Type ZPS 100 140 200 200/4 315 400 500 630 750 1000
Sca le-up f a ct or F = a pprox. 0.33 0.5 1 4.2 2 3 4.2 6.5 9 13
Bea t er un it Ø [mm] 200 280 400 1000 630 800 1000 1250 1530 2000
Ma x. mill speed [rpm] 11200 8400 5600 2250 3350 2800 2250 1800 1460 1120
Mill drive [kW] 3/ 7.5/ 11/ 55/ 22/ 45/ 55/ 110/ 160/ 250/
4 11 15 75 30 55 75 132 200 315
End-product fineness d97= [µm] 8-100 8-100 8-120 8-120 8-120 8-120 8-120 10-180 10-200 15-200
Turboplex Type ATP 100 140 200 4 x 200 315 400 500 630 750 1000
Max. c lass ifying wheel speed [min-1] 11200 8500 6000 6000 4000 3000 2250 2000 1600 1200
Cla ssif ier drive [kW] 1.5/2.2/ 2.2/3/ 4/5.5/ 4 x 5.5/ 5.5/ 7,5/ 15/ 22/ 30/ 45
3/4 4 7.5 7.5 7.5 11 22 30 37
To ta l m ax. ga s f lo w ra t e [m∆/h] 300 500 1200 5000 3000 4800 9000 12000 18000 25000
nuted by the beater unit until such time as
they can pass through the classifying wheel
and thu s correspond to the required fineness
as specified by the classifying w heel speed.
The fee d product en ters the classifying
chamber from the side via a rotary valve,
whereby a ny particles which already display
the end-product fineness are discharged
immediately by the Turboplex ultrafine clas-
sifier, without having to pa ss through the
grinding unit. The air is supplied t o t he mill
by a socket on the side of the machine.
APPLICATIONSZirkoplex classifier mills are universal in use
for materials to a Mohs' hardness of approx.
3, when the requirements call for extremely
high end-product fineness values at the
lowest possible energy consumption.
SHIPPINGA 1000 ZPS
SCHEMATIC
750 ZPS
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PROCESS TECHNOLOGIES FOR TOMORROWSM 8 /9
POWDERAND
PARTICLEPROCESSING
ZPS SPECIAL DESIGNS
CONTROL AND VISUALISATION
The importa nce of system control an d visualisation is constant ly
increasing. Nowadays, more and more control panels with visuali-
sation po ssibilities are being used. The individual pro cess steps,
flow charts and stat uses can all be visualised optima lly with moni-tors. Individual operating statuses can be retrieved at any time. All
error messages are registered and can be printed out.
ZPS WITHMULTI-WHEELCLASSIFIER
HEAD
The system can be d ismantled into its com-
ponent par ts , and al l product-con tact com-
ponents can be sterilised in an autoclave.
FEATURES:
- Product-contact parts in AISI 316L,
surface f inish Ra = 0.4 - 0.8 µm
- Other system pa rts in AISI 304, surface
finish Ra = 0.8 - 1.2 µm
- Stainless steel control cabinet in special
des ign suitable f or wet c lean ing
- Moto rs encased in polished stainless
steel sheet
- Seals made of silicon, EPDM, Chemraz®
configurat ion and the main tenance cos ts
can be minimised. With this concept, the
machines, cyclones, filters and ductings are
all in pressure-shock-proof design to 10 bar
overpressure. All the relevant slide and g ate
valves are not only pressure-shock-proof,
but are also f lame-propagat ion-proof ,
making it possible to reliably contain the
maximum explosion pressure that can occur
in the system.
ATEX
All ZPS sizes a re certif ied: EC Desig n Test
Certif icat e No. IBExU03ATEX 1152 X and
ma rked EX II 1(I) D /2 (o) DG c IIC T5.
MULTI-WHEEL CLASSIFIER HEAD
Alpine has succeeded in satisfying the
requirements in dry production opera-
t ions for h igh throughputs at maximum
end-product fineness values by employ-
ing several eq ui-sized turbo classifying
whe els. This multi-whe el concept w as
applied by Alpine for the first time with
the Turboplex classifier, thus m aking it
possible to achieve superfine products
(especially tho se products in t he 3 - 6 µm
range) wi th an ex tremely h igh f ines
yield at maximum precision of cut in an
extremely cos t-effec t ive manner wi th
only one single classifier.
- Operat ion in c leanrooms: abso lute
filter for filter exhaust air, sterile filter
with po lished stainless steel housing
for suction air
EXPLOSION PROTECTION
Special system safety measures must be
taken if the products being processed are
potent ially explosive. The opt ions are: pres-
sure relief, explosion suppression or pressu-
re-shock-proof design. Our preference is to
manufacture the re levan t components in
pressure-shock-proof design, beca use in this
way, the system can be set up in any desired
PHARMA DESIGN/GMP DESIGN
The smooth design characterised by its
lack of dead zones simplif ies thorough
empt ying, cleaning and sterilisat ion
PRESSURE-SHOCK-PROOF TO10 BAR (G )
100 ZPSIN PHARMA DESIGN
200 ZPS INPHARMA DESIGN
ALSO SUI TABLE FOR WIP,CIP AND SIP
GRINDING TRACKWITH CERAMIC
WEAR PROTEC-TION
ENHANCED WEAR PROTECTION
The use of oxide ceramic material for w ear
protection of the product-contact surfaces
ensures a long service life of the machine.
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Air intake silencer
Pow derplex APP classifier mill
Mater ial conveying fan
Control cabinet
Product feed
End product to f lue gas channelB
A
4
3
2
1
PROCESS TECHNOLOGIES FOR TOMORROWSM 10 /11
POWDERAND
PARTICLEPROCESSING
POWDERPLEX ® APP CLASSIFIER M ILL
Pow derplex Type APP 160 200 315 400 500 630 750
Sca le-up f a ct or a ppro x. F = 1 1.75 3.1 4.6 6.6 9.7 13
Drive pow er [kW] 11 18.5 30 55 75 110 160
Grind ing d isc Ø [mm] 320 448 630 800 1000 1260 1500
Ma x. speed [rpm] 7000 5000 3600 2800 2250 1800 1460
Max. tota l air volume [m∆/h] 750 1500 3000 4800 7500 12000 18000
End-product fineness d97 [µm] 13 15 19 20 20 20 20
DESIGNS
- Pressureless/pressure-shock-proo f
to 10 bar (g)
- Mild steel/stainless steel
- Wear pro tected
(aluminium oxide, polyurethane)
Single-rotor classif ier mill f or pow der finen ess values
between d 97 = 20 and 200 µm wit h an integrat ed air classif ier
designed for a high prec ision of cut for f ine p roduc t
w i thout spat ter grain
PRINCIPLE OF OPERATION
Because the classifying wheel of the Pow der-
plex mill sits on and co-rotates w ith the g rin-
ding disc, only one rotor, one bearing unit
and one drive are necessary with this machi-
ne. Dependent on the required product fine-
ness, the APP is equipped w ith a classifying
wheel designed fo r coarse, medium or fine
separa tions to ma tch the ord er. The classifying
wheel is connected rigidly with the grinding
disc by means of a spacer. Fed by an air-sealed
feed unit, the feed product is introduced to
the machine via the feed port at the feed
socket onto the w ear plate of the b eater disc,
where it is uniformly distributed, interceptedby the impact beaters and catapulted against
the g rinding t rack. Comminution is a result of
the product impacting against the impact
beaters and against the grinding track. After
entering the machine via the socket, the wor-
king air flows between the beater disc and
the grinding track into t he grinding chamber.
The comminuted product is conveyed out of
the grinding zone by the air flow, from whe-
re it is transported along the outside of the
deflection cone and upwards before being
deflected to the classifying w heel. The w or-
king air extracts the fines portion from the
product in the classifying zone a nd conveys it
through the vanes of the classifying wheel tothe fines discharge, from where it exits the
machine. The coarse ma terial is rejected by
the classifying wheel and gravitat es down-
wa rds for renewed comminution. The pro-
duct that is discharged entrained in the w or-
king air must be separated from the a ir in a
downstream collection unit (usually a
filter). A narrow gap between thelabyrinth seal and the classifying
wheel prevents unclassified product
from migra ting into t he fines. To order,
this gap can be rinsed by means of auto-
matically intaken air. Rinsing (com-
pressed) air at the connection pro-
tects the bearings from product
ingress.
FEATURES
- Single-rotor classifier mill of
simple overall design.
- Gr inding d isc wi th beaters o f
hardened stainless steel; can be
removed eas i ly from above.- Heigh t-adjus table gr inding tr ack for
long service life.
- Sharply separat ing , in tegrated a ir
classifier for fines without spatter grain.
500 APP
SCHEMATIC
APPVANE RING
APPLICATIONS
Pow derplex classifier mills are universal in
use for materials to a Mohs' hardness of
approx. 3.5, especially when t he require-
ment is for a mach ine which once set to a
certain fineness, is capable of manufactu-
r ing an end product over a long per iod o f
time to exactly this end fineness.
PRODUCTEXAMPLES
- Chemicals , base mater ials , laboratory and
industrial chemicals
- Chemical in termediates
- Inorgan ic sal ts
- Powder coat ings
- D ye s
- Resins, adhesives
- Minerals (to Mohs' hardness 3,
quar tz- free)
- Fertilisers
- Foodstuffs and luxury foods
- Animal feed
S Y S TE M E X A M P L E
Sodium hydrogen carbonate is used in
baking powder, pharmaceutical products,
fire extinguishers and for neutralisation
processes in the chemical and pharmaceu-
tical industries.
It is also used frequently at a particle size
of d50 19 - 25 µm to neutralise the acidic
constituents in flue-gas desulphurisation
processes.The system shown below w as designed
and del ivered for process ing sodium
hydrogen carbonate .
A Powd erplex 160 APP classifier mill wa s
chosen to meet the req uirements. This
mach ine del ivers a s teep par t ic le s ize
distribution at simultaneously precise top-
size limitation. The modu lar design ensu-
res ease of accessibility for cleaning and
main tenance.
Dependent on the end-product f ineness
and mach ine s ize , the per formance r angeof the APP product line lies between 200
kg/h and 2.5 t /h.
PROCESS SPECIFICATION
Feed size: < 2 mm
Throughpu t: a pprox. 200 kg/h
End product: d 50 19 - 25 µm
1 2
3
4
A
B
PROCESSING OF SODIUM H YDROGEN CARBONATE
(SODIUM BICARBONATE)
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SYSTEM EXAM PLE: PHOSPHATE
PROCESS TECHNOLOGIES FOR TOMORROWSM 12 /13
SYSTEM EXAM PLE: POTATOSTARCH AND
POTATO PROTEIN
Around 60% of the applications for potato
starch are to be found on the technical sec-
tor, e.g. in the paper, textile and film indu-
stries, as we ll as for plastic film, deterg ents
and ad hesives. The foodstuf fs and pharma -
ceuticals industries account for the remai-
ning 40%:
- i n b a b y f o o d ;
- in soups, sauces and dried veget ables;
- as a basis for powde r, filler, and splitting
agen ts in the manufacture o f ta ble ts , e tc.
Another appl icat ion area is the addi t ion o f
potato pro tein to the milk used for rear ing
calves. The pota to prot ein is recovered from
the starch by wet processing. After drying,
the protein is processed to an end-product
fineness of 99.5% < 75 µm. Alpine's Zirko-
plex ZPS classifier mill has proved t o be ide-
al fo r this task. This machine is not o nly
used for processing the pot ato s tarch, whe-
reby an end product fineness of 99.5% <
150 µm is required, but also for the above-
mentioned pro tein . In view o f the fac t that
potato s tarch and potato pro tein are orga-
nic products, suitable explosion-protection
measures must be taken .
PHOSP HATE PROCESSING
Although phosphate is mainly used in fer-
tilisers, it is also employed as a n ad ditive in
the production of adhesives, plant protec-
tors, plastics, foodstuffs, medicines and
cosmetics. Besides the flexibility of the
manufacturing process itself, the vast ran-
ge of applications calls for versatile pro-
cessing systems that can deliver the des-
ired particle size distribution from the
Feed screw
Rotary valve
Metal separator
Classifier mill ZPS
Suction filter
Automat ic reverse-jet filter
Bin activator
Rotary valve
Radial fan
Motorised butterfly valve
Silencer
Safety sieving machine
Metal separator
Supply bin with act ivated discharge
Sack filling and w eighing unit
Automat ic reverse-jet filter
Rotary valve
Butterfly valve
Radial fan
Silencer
Control cabinet21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
previously dried feed material. For many
years, Hosokawa Alpine has been using
the Zirkoplex classifier mill ZPS for this
task. Thanks to t he integra ted classifier,
this machine can be set to the fineness
that is required in each individual case
and is thus universal in use.
Feed bin with dedusting unit,
explosion rupture disc and fluidisation
unit in the filter bin
Feed rotary valve
Metal separator
Feed screw
Rotary valve
Zirkoplex ZPS classifier mill
Explosion pressure relief
Explosion venting valve
Air filter with silencer
Spark detector
Flame extinguisher (chem. ba rrier)
Automatic reverse jet filter
with rupture disc
Fan
Exhaust silencer
Sampler
Control cabinet
Feed product
End productB
A
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
As thei r most important ingredient ,
potat oes generally contain an average
of 15% starch. Potato starch is the
polysaccharide stored in th is tuberous plant
PROC ESSING PO TATO STARCH AND P OTATO P ROTEIN
111
910
6
20
19 18
16
17
18
12
7
8
1
2
3
Fe
5
4 21
18
18
18
13
Fe
14
15
A
14
13
8
12
16
3
Fe4
5
7
6
11
10
89
B
2
2
15
P h o t o : A g r i c u l t u r a l C h a m b e r o f W e s t p h a l i a - L i p p e
POWDERAND
PARTICLEPROCESSING
The flowcha rt below show s a schematic
of such a grinding-classifying system.
The system layout ba ses on the follo-
wing specifications:
Feed material: ex-dryer with a moisture
content of 3.5% H2O
Feed size: < 4 mm
Desired end product: d 97 10 - 45 µm
System throughput :
ap prox. 1300 kg/h at 45 µm
Machine size u sed: 630 ZPS
The appl icat ion area for th e di f ferent
kinds of pho sphates is extremely w ide
and varied.
-
8/20/2019 ZPS APP ClassifierMills
8/8
SYSTEM EXAM PLE: EM ULSION PVC
POWDERAND
PARTICLEPROCESSING
APP LICATION TESTING C ENTRE
The design of a grinding a nd classification system is normally based
on results from a progra mme of t rials conducted in the HOSOKAWA
ALPINE Test Centre. The t rials can be complex and time consuming
and can include evaluat ion o f a wide r ange o f mach ine opt ions .
This way, customers can be assured tha t all process options have
been cons idered and that the sys tem offered represen ts the opt i-mum solution.
Our test centre is extensively equipped with a wide range of diffe-
rent grinding and classification systems, available both on a labora-
tory and produ ction scale. The test facility is supported by a
modern tes t ing laboratory that includes a wide r ange o f analyt ical
equipment enabling accurate measurement of particle size, particle
shape, density, etc.
Skilled and vastly experienced Alpine Engineers conduct the trials,
recording al l operat ing data that enables ongoing d iscuss ions wi th
the customer during the trial. Upo n completion of the trial a com-
prehensive test report is prepared which can then be used for
system des ign and a s the bas is for a per formance guaran tee .
It is essential that test facilities are kept at the leading edge of tech-
nology i f opt imum basel ine data is to be provided for sys tem
design. Our range of machines and systems is continuously upgra-
ded and is extended by new developments .
ALPINE TESTINGCENTRE IN AUGSBURG
ALPINE LABORATORY -SCANNING ELECTRONMICROSCOPE
ALPINE LABORATORY -AIR JETSIEVE 200 LS-N
PROCESS TECHNOLOGIES FOR TOMORROWSM 14/15
ZPS CLASSIFIER MILL
FOR PROCESSING E-PVC
E-PVC is required as an end product at a
fineness value of < 63 µm and < 40 µm with
the lowest possible residue. But because
these requirements cannot be met by
" spraying" a lone, gr inding and c lass i fying
technology is employed in addition.
The flow chart show s a specially designed
system for the follow ing feed /end-product
fineness: Feed material with spray-quality
fineness of approx. 90% < 63 µm.
SYSTEM END-PROD UCT
PERFORMANCE
- Fineness 0.1% > 63 µm ap prox. 1600 kg/h
- Fineness 1% > 40 µm a pprox. 1200 kg /h
The grinding and classifying p rocess is
accomplished w ith a Zirkoplex 630 ZPS clas-
sifier mill. The classifier is integrat ed int o
the to p section of t he mill. The machine is
equipped with special fluidisation equip-
ment at all critical points, a measure which
reliably prevents any coating formation.
Zirkoplex classifier mills are a bsolutely idea lfor these applications, because they offer
optimum accessibility, easy cleaning, cool
grinding and an excellent precision of cut.
Feed bin
Feed metering unit
Rotary valve
Zirkoplex ZPS classifier mill
Hydraulic pump
Air intake filter
Suction /exha ust silencer
Automatic reverse jet filter
with fluidising element
Fan
Control cabinet
Feed product
End productB
A
10
9
8
7
6
5
4
3
2
1
Subsequent to spray d rying, th e PVC (E-PVC) is discharged
as a powder. The most import ant app lications for E-PVC
are plastisols and calendered art icles, sections,
f loor coverin gs, wall coverings, coated mater ials and
sealing compo unds.