VetterTec GmbH

VetterTec offers spray dryers based on 30 years of experience and 150 references world-wide in the food, chemical, pharmaceutical and starch industry.
The special knowhow in the design of the atomizers provides high reliability and a sophisticated solution to give the particle characteristics for the desired application.

VetterTec is able to build spray dryers from pilot plant size to industrial units.

We provide a full range of spray drying units and services as:

• precise engineering and manufacturing
• project management from kick-off to commissioning
• expertise in atomization and particle engineering
• plant and process optimization
• plant commissioning
• test centres for customer trials (particle design)
• retrofits for efficiency improvement
• CFD flow simulations (e.g. for troubleshooting)
• after-sales service as well as spare parts
• training and seminars

VetterTec’s experienced team of spray drying experts is always dedicated to develop the best solution for the specific needs, as e.g. dust free powder, agglomerated powder etc.
With the deep know-how in particle engineering our customers are always getting particles of the desired shape, size and density.

Further we offer:

• werco® nozzle atomizer
• werco® rotary atomizer
• homogeniser
• customized solution for each product
• tunes retention time
• integrated systems
• many different designs possible

The VetterTec spray dryers are designed to dry liquids to powder by means of an atomizer in a high efficient range.
This very gentle drying is mainly used to dry heat sensitive products.

The VetterTec spray dryers offer a high flexibility of design.
Atomisation is provided by centrifugal wheels, pressure nozzles or two-fluid nozzles.
This range of systems allows the specific particle size requirements to be met for each application.
Direct or indirect heating systems are supplied depending upon the industry standards for the product.
Inlet temperatures may range from 100°C for very heat sensitive products to 750°C for some inert chemicals.

Closed circuit and self-inertised dryers are supplied to allow organic solvents to be dried and to meet the environmental specifications.
Different chamber configurations are used along with a range of residence times to provide the desired particle size and moisture content in the finished powder.
Agglomerated products are produced by using integrated fluid beds, fines recycle systems and external fluid beds.. These powders are widely used in the food industries.

VetterTec spray dryers are reliably operating in the drying of:

• Fodder yeast
• Lignin
• Brewer's yeast, yeast extract and cells, malt extract
• Malto-dextrines, modified starches, soluble wheat proteins, polyols
• Pigments, dyestuffs, in-/organic chemicals, polymers
• Resins, catalysts, ceramics, tannins, lubricants
• Flavourings, soup mixes
• Gum arabic
• Enzymes
• Herb extracts
• Protein hydrolysates
• Soya products
• Fats

Your application is not on the list?
We have desired test facilities, combined with our long term experience in the drying
we would be pleased to consult for the best drying solution for your product.
Feel free to contact us or meet us at the Powtech 2019 in Nuremberg.

Ring dryers are flash type dryers which incorporate a centrifugal classifier to increase the product residence time selectively for the wetter and larger material. Within the classifier, the drier and finer particles are separated out from the air stream to be selectively returned back into the drier for further drying.
The finer and drier material is removed from the ring dryer through the bag filter or cyclone collection system.
Adjustment blades in the classifier allow the degree of separation to be set to optimize the dryer performance.

Ring dryers can be fitted with high speed hot disintegrators (fixed beater type mill), located within the hot air stream, to provide screenless grinding.
Ring dryers thus provide extended residence times, allowing many materials to be effectively dried which would not be suitable for flash drying.

Applications:

• gluten (wheat or corn based)
• high protein fodder DDGS
• minerals
• silica
• food ingredients
• proteins
• soy products

Flash dryers are used to produce fine granular or powdered material when short residence times are acceptable.
A stream of turbulent hot air dries the product in a continuous process.

A variety of wet material feeder devices are available, optimized according to product characteristics and feed quantities.
These include sling feeders (used for non-abrasive and friable materials), cold disintegrators and direct screw feeders.

The final dried material is separated from the drying air using either bag filters or cyclone technology.
Two-stage collection (e.g. cyclones plus wet scrubber) is also available where required to optimise product recovery or minimise particulate emissions to atmosphere.

Applications:

• native and modified starch
• Flour
• Lignin
• pigments (iron, copper)
• fly ash
• chemicals (e.g. sodium sulphate)

Your application is not on the list?
We have desired test facilities, combined with our long term experience in the drying
we would be pleased to consult for the best drying solution for your product.
Feel free to contact us or meet us at the Powtech 2019 in Nuremberg.

VetterTec tube bundle dryers are used for various products, preferably when steam should be utilized as heating media and lowest temperatures are required.
Tube bundle dryers are highly efficient, dry with less air thus lowering emissions, and show flexible operation possibilities and highest availability due to modular design. The tube bundle dryer is pre manufactured in the workshop and minimizes erecting cost on customer’s site.

Function and Principle of Operation:
The central element in our tube bundle dryers is the steam heated tube bundle. It dries the product by rotating inside a firm housing. The product is only in contact with the tubes, not with the heating medium steam.

VetterTec tube bundle dryers are used for pourable product that does not stick to the tubes or tend to clog at the temperatures required for the drying and conditioning process (up to 180°C steam temperature). Depending on the material properties, many materials can be "made" pourable by mixing them up with material that has been previously dried (recycling system).

Steam-heated tube bundle dryers can be used as conditioners or as pre-desolventizers. The wide spectrum of applications requires adaptation to special requirements. We achieve this by varying the spacing and diameter of the tubes, shovel arrangements, and filling levels inside the tube bundle housing.

VetterTec tube bundle dryers are reliably operating in the drying of:

• Corn germs, corn fibres, gluten and feed (fibres mixed with CSL)
• Wheat fibres with bran and syrup
• High protein feed, DDGS
• Conditioning of broken soya beans, sun flower seeds, whole or flaked rape, and other oil
  seeds, pre-desolventizing of oilseed coarse meal prior to the toaster, drying of oilseed coarse meal after the toaster
• Spent grains, mixture of spent grains / yeast
• Granulates
• Lignin
• Wood chips
• Olive husks
• Pig manure
• Drying of extracted roots
• Citrus peels
• Leaves
• Fibrous extracts
• Cellulose materials

Your application is not on the list?
Feel free to contact us: we have desired test facilities, combined with our long term
experience in the drying we would be pleased to consult for the best drying solution for your product. 

VetterTec screw presses are used to dewater fibrous materials of different consistencies, by maintaining mechanical force. The mechanical is the most efficient way to get rid of the water.

Special features:

• high dewatering effect
• robust design
• can be uses for a broad range application
• efficient procedure
• space-saving design

Fields of Application:

• Corn husks, corn germs and wheat gluten
• Brewery spent grains
• Spent coffee grounds (extracted)
• Potato pulp (shredded potatoes and potato peel)
• Residues of salad, vegetables, onions and fruit
• Citrus fruit peel and pectin
• Barley mash
• Pharmaceutical products
• Plastic granulate, cellulose fibres, mineral matter fibres
• Eucalyptus fibres
• Drug residues
• Chicken feathers
• Compost, organic waste
• Leaves
• Citrus and orange peels
• Reject sludge, rejects
• Olive husks
• Ensilage material (grass, rye, corn)
• Leaching of alcalics (Cl, S, etc) prior to combustion plants

Your application is not on the list?
We have desired test facilities, combined with our long term experience in the drying
we would be pleased to consult for the best drying solution for your product.
Feel free to contact us or meet us at the Powtech 2019 in Nuremberg.
 

VetterTec offers a comprehensive service to ensure, that even after a long operating time VetterTec equipment maintains its reliability and performance.

We offer:

• Installation and Commissioning
• Genuine spare parts and components
• Repairs and refurbishment
• Consultation for process optimization and plant expansion
• Preventative maintenance and inspections
• Plant modernization and modification of equipment
• Safety analysis
• Tailored trainings (maintenance and operation)
• Seminars