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The Fluid Bed Dryer TG 200 is used in quality control, sample preparation and R&D departments. It permits the gentle drying of organic, inorganic, chemical or pharmaceutical bulk materials.
Suitable materials can be coarse, fine, crystalline, fibrous or leafy. The powerful fan ensures optimal air throughput so that the products to be dried are loosened up and thoroughly mixed. The TG 200 can also be used for drying laboratory items such as test sieves.
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Imtech DryGenic helps the industry to produce better quality products in controlled temperature/humidity environment while minimizing utility usage and maximizing production rates.
The Imtech DryGenic dryer has the characteristics of high efficiency and low energy.
The design and the selection of the dryer is decided by the wet and the dry product flow characteristics,
lump / crust formation tendency and the thermal sensitivity. The dryer capacity and size and performance depends on the available heat transfer area and the operating conditions for the specific product. The combination of temperature cycles and drying times can be adjusted accordingly as to control the final product’s physical properties.
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The Atritor Dryer-Pulveriser has been in continuous manufacture for 80 years. It has a quite unique design with pulverising occurring predominantly by attrition. The mill is a very compact air-swept flash dryer and temperature differentials of over 500° C ensure high evaporative capacity and thermal efficiency.
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Imtech DryGenic is a divison of Ventilex B.V.:
Ventilex Fluid Bed Dryer
Ventilex manufactures the highest quality Fluid Bed Dryers, Fluid Bed Coolers, Flash Dryers, Jet-Bag Air Filtration, and Bokfard™ Steam Sterilization Equipment available. Our equipment is custom designed to meet your highest production standards. Ventilex serves the Food, Dairy, Chemical, Pharmaceutical, and Aggregate markets worldwide.
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The CRX hot air dryers are constructed of stainless steel, heat insulated and provided with heat insulated sliding lid, temperature controller, safety thermostat and ventilation connection with adjustable lever. Adjustable bafflers ensure thorough drying.
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Vacuum dryers are used for parts with complicated form or which do not tolerate the higher temperature of hot-air dryers. Combined dryers with hot-air and vacuum or infra-red and vacuum are used with light weight parts that do not posses enough heat to evaporate the water in vacuum. The vacuum dryers can be equipped with pneumatically operated door and automatic valves.
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The air-swept tubular dryer is a new concept in drying technology. Manufactured in the United States, it will process anything from low solids slurries to low moisture powders. The flow of material through the dryer is controlled so that the product may be a fine, dry powder or a moist granular material.
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After the mass finishing process, the processed work pieces are nearly almost wet and have to dry. The Trowal drier range is composed of various types.
BF-HL RANGE
Applications
Normally, the processed work pieces have to be dried after the finishing process. Trowal hot air belt-driers are designed to dry the work pieces with hot air. Most suited for components, which may not impinge on each other. For
- components with difficult to reach cavities where drying medium
may lodge
- long and bulky parts
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Imtech DryGenic unite dehumidification and product drying expertise and customer focused service to each application. For over 50 years Imtech DryGenic has manufactured Dehumidification systems and Drying tunnels / Belt dryers and is recognized globally for expertise, quality, service and in providing innovative solutions for complex drying processes.
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Novatec’s production includes a wide range of standard installations.
Cleaning and Drying Systems: ultrasonic cleaning and rinsing both standard and according to the customer’s specific requests. Modular surface treatment systems for immersion and/or spray treatment with single or cascading stages. Hot air dryers, infra-red and vacuum dryers, centrifugal dryers. Solvent dryers, ultrasonic degreasing machines, spray-cleaning machines. – Compact ultrasonic cleaning Tanks for laboratory or research applications.
Ultrasonics: piezoelectric and magnetostrictive ultrasonic generators, flanged or bulkhead mount submersible transducers. Available work frequencies from 18 to 100 kHz. Modular construction of the piezoelectric units allow to supply a generator also with different frequencies.
Automation: 2 or 3 axes handling systems with load capacity up to 1000 kg.
Air and Water treatment: water softeners, reverse osmosis, active carbon water filtration systems and manual or automatic water demineralising systems, ultra-filtration systems and evaporators under vacuum which allow to work environment-friendly. Extraction, filtration and air treatment systems (powders and vapours), clean rooms.
Painting: manual or automatic water veil or dry cabins, pre-drying modules and dryers.
NDT: Automatic FPI Dye-Pen, wash and developer systems.
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The Krauss-Maffei Helix Dryer BD is a special variant of the helical mixer dryer HD.
A study group including leading european pharmaceutical manufacturers and KMPT developed a joint requirement profile providing the benefits of different drying equipment in one machine. The Krauss-Maffei Helix Dryer BD offers major benefits in comparison to conventinal drying systems in the production of active pharmaceutical ingredients.
It is designed for the processing of small batches that requires a precisely controlled operating environment and total product containment. Key features of the dryer are its compact dimension for mobility and the optional setup with a central drying station hosting drive unit, vacuum connection and heating/ cooling supply in combination with a stationary lifting device and multiple, mobile product vessels with vapor filters.
By connecting the product vessels with appropriate isolation valves to a mechanical separation equipment such as Krauss-Maffei Pharma Centrifuge, the product remains fully contained throughout the complete processing sequence. Different dryer vessel sizes can be connected to the central drying station for added operating flexibility. No product transfer is required from the filtration step to the drying/ mixing operation and to the final discharge point which can be provided with various high-containment devices. The entire process train can be placed on one individual floor or inside a single clean room.
Main Applications
API's, antibiotics, amino acids, pharmaceutical intermediates, fine chemicals.
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The ES Junior series of continuous vacuum driers are the ISVE mini-driers traditionally used by small craftsmen.
They enclose all the technology and experience developed over twenty years of research into the application of the vacuum process in the treatment of wood.
The machine, operating at low temperatures, allows the timber to lose its water content without subjecting it to thermal changes which can cause cracking and warping.
The evaporated water which remains in suspension in the container keeps the drying material surface continuously humidified, avoiding in this way the formation of small cracks which, in other drying systems is quite frequent.
The humidity level which is necessary between environment and material is constantly maintained by a condenser which precipitates the steam in suspension.
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In general, after vibro-abrasion, the parts are wet and must consequently be dried.
Several solutions are then possible among those, the most used here:
- Vibrating driers of the series G
- Driers of series BF-HL
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Vacuum belt / band driers consist of a housing with built-in conveyer belts for the product running over heating plates. Automatic belt control ensures precision belt operation. The belts run parallel to one another and a metering pump with oscillating application nozzle is assigned to each individually controlled belt.
The shift in the boiling point under vacuum provides for a low evaporation temperature and therefore gentle product temperature.
Pumpable products usually run through a highly viscous, frequently sticky phase during the drying process. This formation of vapor bubbles in the product results in a dry cake on the belt toward the end of the drying process. The temperature to which the product is subjected during the drying process has a significant effect on the achievable product quality. The belts run over a number of heating zones and over a cooling zone at the end. Steam, pressurized water or thermal oil can be used for heating; each zone can be controlled separately, allowing the temperature of the heating surfaces to be adapted to the specific requirements of the product.
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Whether the product is a wet powder or a slurry, specially designed feeders transfer the product into the dispersion section of the dryer. A high speed rotor disperses the product in the drying zone. An induced hot gas stream as high as 600 °C provides the energy for instantaneous evaporation of the moisture within the feed material. Evaporation capacity of the largest unit is over 6000 kg/hr. Dried particles enter the classifying zone at the top of the dryer and fine de-agglomerated particles leave the dryer outlet to be collected down stream. Coarse particles are rejected by the classifier and are returned to the dispersion zone for further processing.
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Drum Dryers are available in single and double drum models. Single drum units may be dip or splash fed, or equipped with applicator rolls. The latter is particularly effective for drying high viscosity liquids or pasty materials such as mashed potatoes, applesauce, fruit-starch mixtures, gelatin, dextrine-type adhesives, polyacrylamide, synthetic resins, and various starches.
Double drum dryers are the most versatile and widely applied. These dryers are used to dry many food, chemical, and pharmaceutical materials of widely varying densities and viscosities: dilute solutions, heavy liquids, pasty materials, or fairly heavy sludges. The movable drum permits complete control of product film thickness. Feed may be by perforated tube trough, pendulum, or special engineered devices.
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International Surface Preparation offers the Walther Trowal line of mass finishing driers. After the mass finishing process the finished work pieces are typically wet and require drying.
International Surface Preparation offers these three series of Walther Trowal driers:
- G Series - Heated vibratory bowl style driers for stain-free drying and secondary polishing of the processed work pieces with the use of heated media. Click here for more information on the G Series.
- DLT Series - Rotary drum style driers typically used with a heated drying media. Parts are transported continuously through a rotating screen drum. Click here for more information on the DLT Series.
- BF-HL Series - Hot air tunnel belt driers. Processed parts are transported through a drying tunnel on a wire mesh belt as hot air is circulated via a blower fan evenly throughout the drying tunnel.
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The Mikro-LGM long gap mill assures superior product quality and peak operational efficiency. Built upon the strength of Hosokawa's unparalleled experience in size reduction, thermal processing and classification, the Mikro-LGM long gap mill is designed to meet the exacting demands of a wide variety of industrial applications.
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Preserving of foods by drying is a very old system applied since ages which is learnt by mankind from nature.Drying systems of GOKSER MACHINE have the characteristics of convection drying systems. The difference from other convection systems is equally distributed air. With our special design, aflatoxin is prevented. For a detailed information, please contact us.
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Key's Automatic Dryers lead our fresh-cut suite of solutions and provide the industry standard in efficient and effective fresh-cut drying. This system offers gentle handling and a simple sanitary design combined with a fully controlled and automated drying solution.
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FLUID BED DRYER DESIGN
The rectangular fluid bed dryer system, CONTACT FLUIDIZERTM incorporates back-mix and plug flow sections. A rotary distributor disperses the wet feed evenly over the back-mix section equipped with contact heating surfaces immersed in the fluidized layer.
The heating surfaces of this fluid bed dryer are designed to avoid deposits and obtain a high heat transfer in the fluidized layer, and they provide a significant portion of the required energy.
Fluid Bed Dryer - CONTACT FLUIDIZER
Therefore it is possible to reduce both the temperature and the flow of gas through the system. This is particularly important for heat sensitive products.
Specially designed perforated gill plates allow handling of oversizes and minimize powder holdup by grade changes.
The heating panels can be inspected or cleaned externally.
Cleaning in place (CIP) of the whole plant is often provided.
Subsequent plug flow sections are used for postdrying and cooling, if required.
ADVANTAGES
Advantages of the CONTACT FLUIDIZERTM - compared to fluid beds without heating surfaces, two-stage flash/fluid bed dryers, or rotary dryers - include its compact design, high thermal efficiency, and low gas throughput
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The plants are characterized by an enormous flexibility. By means of individual adaptation of the inlet air conditions which can be adjusted section-wise, the weir adjustment for optimization of the retention time distribution and the integrated filter concept, particles can be formulated exactly according to the customer's demands.
In order to meet the requirements of the EC Directive 94/9 (ATEX 95), the continuous fluidized bed plants can be equipped with certified explosion suppression systems according to the available product data and depending on the risk assessment for dust explosions.
The GMP design allows simple and quick cleaning, especially as WIP systems for automatic cleaning can be integrated.
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LABORATORY FLUID BED SYSTEMS
The higher your requirements to be met in the fields of drying, granulation and coating/layering, the more you profit from the OYSTAR HÜTTLIN fluid bed technology. The spraying system of the three-component nozzle guarantees an optimum mixture and a homogeneous coating. The patented process gas distributor blade Diskjet prevents adhesion of the product and offers the best conditions for reliable and reproducible processes.
Regardless which size of fluid bed you require the unique advantages of Oystar Hüttlin laboratory fluid bed systems are identical to the production fluid bed systems. This bears the advantage of precise scale up calculations using the Oystar Hüttlin developed software NexStep.
PILOTLAB
Pilot Fluid Bed for batch sizes ranging from 4 to 50 kg
* 10 bar shock-resistant as standard
* Process air equipment and circuit cabinet with integrated PLC for separate installation
* Diskjet
* Three-component spray nozzle
* Dynamic filter
* Pneumatic and gravimetric charging
* Pneumatic discharging
* Top-spray - optional
* UltraClean - optional
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LABORATORY FLUID BED SYSTEMS
The higher your requirements to be met in the fields of drying, granulation and coating/layering, the more you profit from the OYSTAR HÜTTLIN fluid bed technology. The spraying system of the three-component nozzle guarantees an optimum mixture and a homogeneous coating. The patented process gas distributor blade Diskjet prevents adhesion of the product and offers the best conditions for reliable and reproducible processes.
Regardless which size of fluid bed you require the unique advantages of Oystar Hüttlin laboratory fluid bed systems are identical to the production fluid bed systems. This bears the advantage of precise scale up calculations using the Oystar Hüttlin developed software NexStep.
UNILAB
Laboratory Fluid Bed for batch sizes ranging from 0.2 to 6 kg
* Mobile unit with operating panel
* Process air equipment and circuit cabinet with integrated PLC for separate installation
* Diskjet
* Three-component spray nozzle
* Dynamic filter
* Pneumatic discharge system
* Top-spray - optional
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LABORATORY FLUID BED SYSTEMS
The higher your requirements to be met in the fields of drying, granulation and coating/layering, the more you profit from the OYSTAR HÜTTLIN fluid bed technology. The spraying system of the three-component nozzle guarantees an optimum mixture and a homogeneous coating. The patented process gas distributor blade Diskjet prevents adhesion of the product and offers the best conditions for reliable and reproducible processes.
Regardless which size of fluid bed you require the unique advantages of Oystar Hüttlin laboratory fluid bed systems are identical to the production fluid bed systems. This bears the advantage of precise scale up calculations using the Oystar Hüttlin developed software NexStep.
MYCROLAB
Laboratory fluid bed for batch sizes ranging from 0.05 to 1 kg
* Process filters with various types of filter materials and cleaning by means of compressed air
* Filling manually or by pneumatic suction. Manual discharging
* Optional data transfer to and recording on external PC with MycrOP software
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DRY PLAST 3000 is the most versatile drier of its category. In fact it can be easily positioned on the original press hopper, or it can be combined with a silo to increase its drying capacity. It has a heating capacity of 2500 W and is suitable for drying small-medium quantities of material. The IAD 3000 heating unit is designed to be combined with the isolated hopper to be installed directly on the transformer machine.
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EH-A SERIES
HOT AIR DRYING
The EH-series hot air dryers have been expressly designed for the treatment of non-higroscopic thermoplastic materials in granulate form. The temperature can be adjusted electronically. The possibility for separate control makes these dryers particularly useful. The special “piggy-back” design makes for a very compact machine. The low voltage electrical system permits compliance with CE standards. The units can be installed in the machine or alongside. 12 different models of power generator and 19 di ferent hopper sizes provide a response to every drying need
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DRYING WITHOUT AGGLOMERATION
The Nara-designed Media Slurry Dryer makes it possible to dry from slurry to fine powder in one step – i.e. without additional desagglomeration. This is due to the following process: The slurry is fed by a pump into the media beads which are in fluidised state by means of the incoming hot air. The slurry is dispersed and forms a film on the media surface. Because of the very large surface area of the media, the volatile slurry component dries in a short time. The left-over dried solids are peeled from the media surface because of the continuous collisions the media particles undergo. The peeled-off solids are transported to the dust separator by entrainment into the exhaust air.
Special features of the NMSD:
• its compactness
• the good thermal efficiency
• easy maintenance
• the nearly same size of the powder particles and the solid particles in the slurry
Materials this drying method is most suited for are: inorganic materials like calcium carbonate, calcium phosphate, glass powder, magnesium hydroxide, silica and zinc sulphide. But also materials like animal blood, emulsion resins, dyes, pigments and medicines can be dried very effectively in this way.
The capacity of the dryer depends on the fluid bed area, the temperature and the material. The evaporated water quantity of actual plants ranges from 2 kg/h (laboratory type) up to 1.4 t/h.
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The Paddle Dryer, developed and supplied by NARA, is an indirect dryer. It offers a wide range of possibilities for material treatment. The NPD is applied to dry, heat or cool organic or inorganic pellets, granules and powders. Filter cakes, thick pastes and even thick slurries having a sticky phase to pass during processing are handled in the machine. The raw material temperature changes when it gets into direct contact with the revolving, wedge-shaped rotating paddles and the jacket. All powder contacted surfaces are heated or cooled. Actually there are plants running with heating areas from 1,5 up to 280 m² and effective volumes between 0,0089 and 34 m³.
The NARA Paddle Dryer is well known for its compact construction and the consequently small need of installation space. This results from the high heat transfer coefficient and heat efficiency. These features combined with the self-cleaning effect of the paddles assure a homogeneous product, cooling or heating process for continuous and/or batch unit operations.
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DRYMAX D30, D60 and 100 Compact Dry Air Dryers
The DRYMAX Series dry air dryers are equipped with two desiccant beds to supply continuous
dry process air and constant quality for the perfect drying of plastic resin.
- Ambient Independent Dew Point to -60°C
- Motorized Switchover Valve – Operation without compressed air lines and optimized control of drying and regeneration cycles in both desiccant beds.
- Energy Saving Counter Airflow Regeneration – Reduced energy costs through fastest dehumidification of the desiccant beds during the regeneration phase.
- Material Protection Function – Avoids over-drying and thermal degradation of the plastic resin through short term lowering of the drying temperature during the production stoppages of the processing machine.
– Micro Particle Filter in Return Air – Dust separation efficiency of up to 99.9% for high process safety.
- SmartReg Energy Saving Function – For the time optimized control of regeneration and cooling of the desiccant beds (on DRYMAX D60 and 100).
- SmartFlow Intelligent Air Distribution – Automatic air distribution to adjust to different materials and fluctuating material demands (available on units with 2 drying hoppers).
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