drying and processing 0905

Drying- andProcessingTechnology

P A R T N E RY O U R C O M P E T E N T

Trocknungs_Prozess_engl_04_05 26.09.2005 16:14 Uhr Seite 1

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Circulating Air Drying Oven• Design Features and Versions• with External Solvent Recovery System

Product RangeDrying and Processing Technology

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System Supplier• PINK – One meets all your Needs

Vacuum Drying Oven, Type VSD• Design Features and Versions• Accessories and Options• CIP-Cleaning Device

Isolators• Design in Combination with VSD

Vacuum Drying Oven, Type VT• Design Features and Versions

Vacuum Circulating Air Drying Oven, Type VUT• Design Features


Drying under vacuum isa widely used thermalprocess in many bran-ches.

The objective of this pro-cess is to gently dry highquality products contai-ning water or solventswithout modifying theproduct characteristics.

During vacuum drying,the overall pressure inthe drying oven is re-duced so that water orsolvents start changingfrom the liquid to thevapor phase at low tem-peratures.

The drying process canbe optimized by carefulcontrol of the heat andpressure.

As a matter of principle,a vacuum drying systemconsists of a drying ovenwith heating system, avacuum pump assemblydesigned specifically forthe drying process and amatching control.

Gentle Drying under Vacuum

PINK TechnologyOptimum for Research and Industry

Renowned research insti-tutes and industrial enter-prises around the worlduse systems and productsfrom PINK GmbH Thermo-systeme.

These custom-designedfacilities and systemshave an excellent reputa-tion for their workmanship,reliability and operatingconvenience.

PINK has set milestones inthe fields of vacuum dryingand processing technologywith its technical innova-tions and optimum per-fection in production.

The modern vacuum dry-ing ovens and circulatingair ovens from PINK have

been used successfully formany years in the chemi-cal, pharmaceutical andcosmetic industry, in pro-duction and electrical tech-nology as well as in thefood industry.

PINK offers a versatileproduct line with variablesizes in combination withdifferent equipment fea-tures.

PINK vacuum drying ovensand circulating air ovensare designed for customersand are exemplary in theirvariety of possibilities foroptimum fulfillment of allrequirements in specificapplication areas.

Phase Diagram Water

Temperature °C Pressure mbar

Pre

ssur

e m

bar

4


VT 600-950-1050-6Vacuum drying oven with six heated inserts

Shelf area: 3,42 m2

Heating: Thermal oilTemperature: 140 °C

PINK designs and delivers complete equipment for thespecific application.

All systems are optimally matched to the specific requirements in terms of their equipment features.

Here you can see a vacuum drying system from PINK asused by a well-known company in the food industry.

Heater for thermal oilheating medium steam, 3 bars, temperature max. 140°C,including indirect water cooling

Control cabinetincluding output stages as well as PLC for process control

Water cooler for condenserwith electric heater for deicing, temperature range -10°C to +20°C

Vacuum pump assemblywith vane-type rotary pump,suction speed 63 m3 ⁄ h,ultimate pressure 0.5 mbar,condenser, collection tank andpressure regulator

One Company meets all your NeedsPINK as System Supplier

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The patented vacuum drying oven Type VSD(VSD = Vacuum SystemDreisbach) ensure usersof optimum cleaning,offering ideal conditionsfor a GMP ⁄ FDA-approvedprocess.

The heated shelves andchamber walls merge with-out joints subdividing theinterior into individualcharging chambers. Allsur faces in the productarea are visible and opti-mally suited for use of aCIP cleaning device (CIP = Cleaning In Place).

VSD vacuum drying ovensare preferred in the chemi-cal and pharmaceutical

industry, process techno-logy and in the foodstuffsbranch where clean, con-tamination-free conditionsare required.

This is the reason why current certificationaccording to the EHEDGGuidelines was applied for in 2002. (EHEDG = European Hygienic EquipmentDesign Group.)

Moreover, we provide sup-port in completing yourDQ, IQ, and OQ documen-tation with the requiredtests and certificates.

Patented SystemPerfect Cleanliness

Description of VSD Principle

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Product tray

All surfaces in the product chamber can bechecked visually and manually.

Absolutely joint-free production chamber without concealed surfaces and corners.

No passages in the interior for feed andreturn of heating media.


Vacuum Drying Oven, VSDPatented as well as EHEDG-approved

Surfaces and walls are double-walled, all corners arerounded. Product compartment is completely view-able. Easy cleaning. High quality and corrosion-resis-tant stainless steel.

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This vacuum drying ovenis suitable for setup andoperation in explosion-hazard areas.

All parts of the vacuumchamber coming intocontact with the productconsist of high qualitystainless steel or specialmaterial such as Hastel-loy, Inconel or Titanium.

The sur faces are groundand polished.

The shelves and ceilingare designed with doublewalls. Heating is accom-plished with hot water orthermal oil.

The heated shelves andchamber walls merge without joints subdividingthe interior into individualcharging chambers.

The front side of the vacuum drying oven isequipped with a circum-ferential mounting framefor wall installation; theframe is welded tightly tothe vacuum chamber.

The vacuum drying oven is tested for leakage with helium or using the pressure increase method.This test is confirmed by a certificate.

Design features of the VSD

The door suspension is equipped with adouble joint hinge toensure that the doorseal makes propercontact without deformation of the O-ring.

CIP device

The door is equippedwith a circumferential,temperature-resistantround seal.

N2 introduction

Floor drain flange

Vacuum flanges


PINK Leaves You Freedom for PlanningThe Standard Dimensions of the Vacuum Drying Oven, VSD

Scale drawing of the Vacuum Drying Oven, Type VSDModel designation

8

D 100

A

C H

B

100

E

ca. 2

30

D

A

100

C

B

F

H

G

E

ca. 2

30

Brief designation Effective compartment dimensions mm

Number of compartments

Width950

Depth650

Height120VSD 12

Vacuum chamber dimensions,compartment dimensions in grid

Exterior dimensions

Effective width mm

Effective depth mm

Effective height mm

Width A mm

Depth B mm

Number of compartments

650

550

100

700

675

750

650

120

800

775

850

750

140

900

875

950

850

160

1000

975

1050

950

180

1100

1075

1050

200

1175

3456789101112131415

Height C mm

3464695927158389611084120713301453157616991822

406549692835978

1121126414071550169318361979

-

466629792955111812811444160717701933

---

526709892107512581441162418071990

----

586789992

11951398160118042007

-----

64686910921315153817611984

------

Other dimensions on request Preferred size

Version without subframe

WidthTiefe Height D

EH

≈≈≈

ABC

+ 300 mm+ 165 mm+ 270 mm

Version with subframe

WidthTiefe Height Height Height

DEFGH

≈≈===

ABCmax.max.

+ 300 mm+ 135 mm+ 270 mm

700 mm1800 mm

Temperature and heating modes

Temperature

up to 95°C

up to 250°C

Temperature mediumHot water

Thermal oil

Heating modes

- primary energy electrical or steam

- with accurate control

Higher temperatures on request


Shelf area: 2 x 15,4 m2

Temperature: 95 °CHeating: Hot water

Vacuum Drying Oven, VSDThe Versions of the Vacuum Drying Oven, VSD

Shelf area: 1,17 m2

Temperature: 95 °CHeating: Hot waterControl and display field in installation coverVacuum pump and tempering device in subframe

Shelf area: 7,2 m2

Temperature: 160 °CHeating: Thermal oil

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VSD 650-600-140-3with 3 compartments for wall installation

VSD 950-950-140-8with 8 compartments and CIP cleaning device

VSD 1050-1050-100-15with 15 compartments, prepared for CIP

VSD 1050-1050-120-14double-chamber version,prepared for CIP, 2 x 14 compartmentsfor wall installation

Shelf area: 16,5 m2

Temperature: 95 °CHeating: Hot water


Accessories and OptionsFor all Vacuum Drying Ovens, VSD und VT

• CIP cleaning device • Temperature equipment for heating and

cooling using heating medium; Temperature 95°C or 200°C; Heating: Electric, hot water or steam, also explosion-proof version

• Vacuum pump assemblies • Process control• Various materials • Various surface finishes

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Star-shaped handles with safety design. When the pressurein the chamber increases excessively (≤ 100 mbar), thespring-tensioned star-shaped handles release the door.

Safety door catch

The distribution manifold consists of a vertical distributiontube, one gas guide lance per charging chamber and islocated on the side in the vacuum chamber, connected with threaded pipe flanges.

Distribution manifold for introducing neutral gases or air

The door for the vacuum chamber is double-walled, allowing heating medium to flow through.

Door with heater

Charging cart in GMP design, stainless steel channeldesign, surfaces with fine glassbead-blasted finish, support rails to fit vacuum chamber.

Tray in pharmaceutical design (GMP design), edge with cir-cumferential inclination less than 15°, corners roundedwith radius of 10 mm, material thickness 1.5 mm, surfaceground and polished.

GMP-Approved Charging


Vacuum Drying Oven, VSDClean and simple – CIP cleaning device for the VSD

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• The cleaning lance is connected using a threaded pipeflange in the ceiling area.

• The drive moves the cleaning lance around its verticalaxis.

• The spray heads turn around their horizontal axisduring this process.

• Each compartment has a separate spray head.• One spray head can also be used for two compartments

depending on the chamber version and application. Inthis case, the cleaning lance is also moved vertically.

Installation and function

Vacuum drying oven VSD with five compartments andCIP lance. This cleaning lance has one spray head percharging compartment.

Drain flange for cleaning liquids.

Drive withvertical motion

device.

This device consists prima-rely of a cleaning lancewith driven spray headsand an electric or pneu-matic drive.

The cleaning lance is loca-ted in the vacuum cham-ber between the door andshelves; the drive is loca-ted on top of the oven.The design of the cleaninglance ensures that everypoint in the vacuum cham-ber is sprayed and therebycleaned.

Before cleaning, the lancecan be installed with a fewsimple manipulations,after completion of the cleaning operation, it isdried together with thevacuum drying oven andcan then be removed.

Vacuum drying oven VSD with eight compartments andone CIP lance. This cleaning lance has one spray headfor every two charging chambers and is also moved ver-tically during the cleaning process.


Clever CombinationIsolator with Vacuum Drying Oven, VSD

• GMP- ⁄ FDA-approved design• no cross-contamination• protection of the operator • protection of the product• ergonomic handling• dryer doors 180° turnable

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The special two door design allows ergonomic handling of the system. The doors can be turned around 180° for cleaning purpose.

The isolator can be loaded with the product through a loadlock or Rapid Transfer Ports. The trays filled with the product

will be placed onto the shelves of the vacuum tray dryer.

For drying toxic and high sensitive products, PINK developed a special solution – a vacuum tray dryer withattached isolator.

Door

Tray, filled with toxic products

Heated shelves

VacuumDrying Oven

Isolator Operator


IsolatorenThe Versions of the Isolators

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Isolator:Volume: 855 lPressure: -50 bis -120 PaGloves: 4RTP-Ports: 2

VSD:Shelf area: 0,78 m2

Temperature: -50 °C bis +60 °CHeating: Thermal oil

Isolator:Volume: 1220 lPressure: -50 bis -120 PaGloves: 6RTP-Ports: 3



VSDI 650-400-120-3Isolator with flanged Vacuum Drying Oven, VSD,designed as Freeze Dryer

VSDI 650-400-120-6Isolator with welded-on Vacuum Drying Oven, VSD

VSDIN 650-400-120-6Isolator with flanged Vacuum Drying Oven, VSDand integrated Filter Nutsch

Isolator:Volume: 2650 lPressure: -50 bis -120 PaGloves: 13RTP-Ports: 3Boyer-Door: 1



Filter Nutsch:Filling Volume: 28 lmax. Pressure: 3 barFilter cartridge removable


The vacuum drying oven VT is designed for versatile application.

This drying oven consists of an extensive chamber with easily removableinserts in the form of double-wall heating plates.

The inserts can be heated or cooled. The connections lead through the rearwall and are vacuum-tight. If desired by the customer, the side walls as wellas floor, ceiling and door can also be heated.

This concept allows production of sizes with shelf area of up to approx. 50 m2 and chamber volumes of 8 m3. The production chamber can be executed to meet GMP approval to the greatest extent.

Other versions such as push-through types, as well as versions for wallinstallation or explosion-hazard can also be realized with this model.

The vacuum drying oven is suitable for setup and opera-tion in explosion-hazard areas.

All parts of the vacuum chamber coming into contactwith the product consist of high quality stainless steel orspecial material such as Hastelloy, Inconel or Titanium.The sur faces are ground and polished.

The front side of the vacuum drying oven is equippedwith a circumferential mounting frame for wall installa-tion; the wall is welded tightly to the vacuum chamber.

The removable inserts for hot water or thermal oil aredesigned with double walls and with one inlet and outletflange each running through the rear wall and sealedvacuum-tight.

The vacuum drying oven is tested for leakage with heliumor using the pressure increase method. This test is con-firmed by a test certificate.

Vacuum Drying Oven, VTVersatile. Reliable. Quality Down to the Final Detail.

Design features of the VT

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As an option, this vacuum drying oven can also be offered with electricallyheated inserts or with electrically heated inner container.

The interior has rounded corners.

The vacuum chamber has a finely processed door flange.

The door is equipped with a circumferential,temperature-resistant

round seal.

The door suspension isequipped with a double

joint hinge to ensurethat the door seal

makes proper contactwithout deformation of

the O-ring.


Vacuum Drying Oven, VTThe Versions of the Vacuum Drying Oven, VT

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Chamber volume: 1500 lTemperature: 140°CJacket heating: Hot waterTempering device on top of oven, electrically heated,vacuum pump and control cabinet set up separately.

Shelf area: 6 m2

Temperature: 180 °CHeating: Thermal oilControl and indicator panel on top of oven, tempering device andvacuum pump assembly set up separately.

VT 1000-1000-1500push-through version with sluice function between clean room and gray room, charging via charging frame

VT 1100-1100-1250-5with 5 heated inserts and attachedroller tracks for easy charging

VT 860-1250-1700push-through version with pneumatically driven sliding doors, electric jacketheating and additional air circulation,charging with charging carts

Chamber volume: 1500 lJacket heating: ElectricTemperature: 100°CControl cabinet and vacuum pump integrated into outer housing.

Clean room viewGray room view


Temperature °C Heating modesTempering medium

up to 95° Hot water - Regulated hot-water heating- Regulated steam/hot-water

heating- Electrically heated

tempering unit

up to Thermal oil - Electrically heatedtempering unit

200°

Electrically heated and regulated inserts / inner container

up to 400° On request electrically heated

Version without subframe Version with subframe

Width Depth Height

DEH

≈ A≈ B≈ C

+ 300 mm+ 400 mm+ 250 mm

Width Depth Height Height Height

DEFGH

≈ A≈ B≈ Cmax.max.

+ 300 mm+ 400 mm+ 250 mm

700 mm1800 mm

Width A mm

735835935

10351135

660


Design versions

Width mm

max. numberof shelves

Standardnumber

EffectiveHeight mm

760 860 960 950850750650

Vacuum chamber Shelves (Heating plates)

Heater power kW/shelfDesign versions

1,01,31,31,5

1,31,31,51,8

1,31,51,82,0

1,51,82,02,2

Height C mm

650750850950

550650750850950

1050115012501350145015501650175018501950

56789

10111213141516171819

3

5

6

8

10

≈130

≈130

≈150

≈145

≈140

Depth mmDepth B mm

Scale drawing of the Vacuum Drying Oven, Type VTModel designation

Interior dimensions based on 100 mm Grid

Exterior dimensions

Temperature and heating modes

Brief designation Dimensions mm Number of shelves

Shelves Vacuum chamberWidth Depth Height

VT 850 950 1750 10

D

C H

A

B

E

100

B

F

H

E

G

DA

100

C

Vacuum Drying Oven, VTThe Standard Dimensions of the Vacuum Drying Oven, VT

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Clever Combination Vacuum Circulating Air Drying Oven, VUT

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If a product, which is con-tained in a product carrieror has poor heat couplingvia heat conduction due to its own structure, is to be dried under vacuum,the combination of two different types of drying -vacuum plus circulating air - is most practical.

The product is heated upto a certain temperatureby the circulating air. Then the product chamberis evacuated allowing evaporation or drying. This procedure can be re-peated a number of timesdepending on the dryingcurve and desired results.

Diagram for combinationvacuum and circulating airoperation

Open Drying Oven with Charging Cart

Perforated plate, adjustablefor uniform distribution ofcirculating air. Perforated plates are removable.

Beschickungswagen

Temperature

Atmosphere

VacuumTemperature curve at productPressure curve in vacuum chamber

Time


For drying under normal atmospheric pressure as wellas heating, tempering and sterilization, PINK offers aseries of circulating air ovens in different versions andmaterial qualities.

For effective utilization of the oven in the production sequence, charging can be accomplished with chargingcarts. Temperature-resistant HEPA filters up to filter classH13 DIN EN 1822-1 can be used when particular require-ments for cleanliness are placed on the circulating air.

Circulating Air DryingIn All Versions

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Heater ⁄ heat ex-changer

Fan

Exhaust air Incoming air

Design features Air circulation in circulating air oven

Version Circulating air tempering oven, e.g. barrel heating ovenCirculating air drying ovenCirculating air drying oven, gas-tight versionClean room drying ovenSterilizersClean room sterilizers

Temperature 150°C or 250°C, range higher temperatures on request

Heating ElectricHot water / Thermal oilSteam

Explosion-proof Suitable for installation and operation in zone 1version Operating chamber

Design features

Double door with easiliy exchangeable,temperature-resistantsilicon seal

Electrical control

Adjustable air diffusor panel, horizontal air flow

Air recirculating fanExhaust fan


Temperature: 200 °CHeating: ElectricFloor space: 11,62 m2

Incoming and exhaust air device with side support rails for charging

Circulating Air Oven, UTThe Versions of the Circulating Air Ovens

Temperature: 200 °CHeating: ElectricMonitoring for oxygen concentrationCooling under protective gas atmosphere with switchable,water-cooled cooling circuitChamber floor designed for max. load of 3500 kg

Temperature: 130 °CHeating: Steam 10 barFresh circulating air control via vapor-solvent concentrationCharging with charging and storage cart

Circulating Air Tempering Ovengas-tight version for inert protective gaswith pneumatically-actuated lifting door

Fresh Circulating Air Oven explosion-proof version

Circulating Air Drying Oven explosion-proof version, inner chamber GMP-approved

Circulating Air Drying Oven standard version

Temperature: 100 °CHeating: Hot water, via separate tempering unitFresh air percentage permanently setCharging with charging and storage cart

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Dependable DryingCirculating Air Drying Oven with External Solvent Recovery System

Design according to guideline 1994 ⁄ 9 ⁄ EG (ATEX 100a),suitable for operation in zone 1, temperature class T1-T4.

Vacuum processes are normally used to dry productscontaining solvents or water-based moisture. However, as not all products are suitable for drying in a vacuum, a new forced-air dryer with a very high solvent recovery rate has been developed for use atatmospheric pressure.

In contrast to other designs, external recovery allowsyou to condense, collect and dispose of solvents even if they are potentially explosive. The course of the drying process as follows:

A loading cart, which contains the product trays, is usedto load the product chamber in the dryer. A separatesupport cart can be used to avoid contamination whenthe loading cart is being moved to and in the dryer. Afterloading, the internal chamber is purged with inert gasuntil the explosive concentration falls below the ignitionpoint. The fans and heater are then turned on, and thedrying process starts. The gas atmosphere that nowcontains solvents can be fed to the external condenserin partial flow mode. The condensed vapor is collectedin an demister unit and moved to a secure container.Because the system uses a closed cycle, the remainingpartial flow is returned to the system.

Display of the Circulating Air Drying Oven with External Solvent Recovery

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Operating

chamber

Fan

Fan

Condenser with solvent recovery

Heat exchanger


Clean EnvironmentDrying in closed cycle

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No emissions into the environment

No hazardous substances are released into the environ-ment by this recovery method. Another advantage ofexternal recovery compared to internal recovery is thatthe drying temperature in the forced-air oven is notaffected by the condensation process. This has a significant effect on uniform drying of a complete batch.

Option

By drying aqueous products the oven can be used by circulating air with adjustable fresh air rate.

Design features –Circulating Air Drying Oven with External Solvent Recovery System

Single door, with easilyexchangeable, temperature-resistant silicon seal

Door handle

Temperature and pressure display

Incoming air fan for fresh air operation

Adjustable air diffuser panel, horizontal air flow


WidthDepth

Height

AB

800900

1000110012001300

C12001400160018002000

Design versions

Heating power (kW)


800 900 1000 1100 1200 1300

20 2020 24

30 32

1616

Circulating Air Drying Oven UT and Sterilizer STTemperature 150°C or 250°C

Circulating Air Drying OvenThe Standard Dimensions of the Circulating Air Drying Ovens

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Interior dimensions mm Specification

F=

C +

600

A

E = B + 400

H=

C +

950

B

D = A + 870

C

Use Heating, drying, tempering and sterilizing

Features Large range of applicationHorizontal air circulation for optimum utilization of spaceInner design for sterilizer GMP-compliant

Equipment Incoming and exhaust air equipmentCharging rack with support railsAlternative operating chamber floor with floor rails


Width

Depth

Height

Depth

Height

AB

700850

C110014001700

B10001350

C140017002000

Design versions

Heating power (kW)


800 900 1000 1100 1200 1300

202530

323240

Heating power (kW)

Design versions

162020

A

E = B + 400

H=

C +

950

B

D = A + 1120

F=

C +

600

C

Use For drying and sterilizing with high requirements for cleanliness (clean room class 3 according to VDI 2083 or clean room class 100 according to US Federal Standard 209; other clean room classi-fications on request).

Features Large surface filter wall ensures low turbulence displacement flow in operating chamber.

Equipment Suspended particle filter group in side wall, installed for easy changing; filter frame of material 1.4301, filter medium: Fiber glass, filter tested for leakage with separation rate of min. 99.97 % (particle size 0.3 µm).

Circulating Air Drying OvenThe Standard Dimensions of the Circulating Air Drying Ovens

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Clean Room Drying Oven RT und Clean Room Sterilizer RSTTemperature 150°C or 250°C

Interior dimensions mm Specification


PINK GmbH Thermosysteme • Am Kessler 6 • DE-97877 Wertheim-Bestenheid • GermanyTel. +49 (0) 93 42 ⁄ 919-0 • Fax +49 (0) 93 42 ⁄ 919-444 • Web: www.pink.de • eMail: [email protected]

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