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When product-sensitive and energy-saving applications are involved, the EVAPplus plate falling film evaporators are exactly the right choice. State-of-the art technology ensures high-efficiency concentration of juice from sugar beet and cane. The special feature of EVAPplus is the combination of tube and plate evaporators. The plates are arranged in such a way that two separate flow channels result: a tubular channel with 6 or 9 mm diameter for the juice and a corrugated channel for the condensing steam or
vapour. The plate packs are fully welded without the need for gaskets.
Retrofitting Robert-type evaporators
The advantages of the EVAPplus can also be used to achieve greater efficiency by retrofitting existing Robert evaporators. In most cases no changes are necessary to buildings, foundations or the static design of the plant. The calandria from the old Robert evaporator is simply removed and replaced with an EVAPplus plate pack and the respective distributor. With minimum expenditure the heating surface area and the system efficiency is considerably increased.
Simple to clean
The EVAPplus can be easily and quickly cleaned to maintain its maximum performance. Evaporators used for processing beet sugar juices are cleaned at the end of each campaign. When processing cane sugar juice, a sensible cleaning cycle is every one to two weeks.
Outstanding features
- High density of heating surface (170 m²/m³ or 240 m²/m³)
- Outstanding overall heat transfer values
- Low temperature differences
- Short residence time of the of the juice in each effect
- Low juice colour formation
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One of the most important fibers, polyamide 6, is produced by polymerization of caprolactam. Large quantities of extraction effluents are produced in this process. The effluents are cleaned in evaporation plants: the valuable substance is recovered, waste products are minimized, and existing energies from the caprolactam production can be used.
Moreover, evaporation plants are used in this process as sump evaporators for distillation plants.
The particular features of GEA Wiegand plants are:
Economic conception in order to minimize the caprolactam losses
Long operating periods thanks to an optimum temperature
Many years of experience in the application of mechanical vapor recompressors
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GEA Wiegand designs and constructs complex plant systems for the treatment of effluent and the recovery of solvent. The concepts of the different operating processes mainly focus on high degrees of purity, the energetic situation and low residual product quantities.
For the treatment of industrial effluent, our process engineers develop concepts for plant systems that are especially designed for the relevant effluent problem on the basis of a detailed analysis of the current situation.
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Steep and wash water that contain a high proportion of valuable nutrients are produced during the processing of corn, potatoes and rice. For recovering these nutrients, steep and wash water are concentrated in evaporation plants, namely corn steep water to 50 % TS, wash water from the production of wheat starch to 20 - 30 % TS and potato starch effluent up to 60 - 70 % TS.
5-effect falling film evaporation plant for monosodium glutamate heated by thermal vapour recompressor, evaporation rate: 25,000 kg/hr
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GEA Wiegand designs and constructs complex plant systems for the treatment of effluent and the recovery of solvent. The concepts of the different operating processes mainly focus on high degrees of purity, the energetic situation and low residual product quantities.
For the treatment of industrial effluent, our process engineers develop concepts for plant systems that are especially designed for the relevant effluent problem on the basis of a detailed analysis of the current situation.
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For the production of fruit juice, fruit and vegetable juice is concentrated from stone, pomacious and soft fruit from approx. 11 % TS to approx. 72 % TS or citrus juice is concentrated from 10 % TS to 60 - 70 % TS. Normally evaporation plants are used for this.
Before or during the evaporation process, volatile aroma substances are extracted from thin juice. These aroma substances are removed and added to the fruit juice later on for intensifying the typical fruit flavor.
The concentration of fruit and vegetable juice means:
the possibility of compensating differences in quantity and quality of different vintage.
the possibility of compensating fluctuations in price in years of cheap and expensive fruit (large and small harvest)
the possibility of storing 6 or 7 times as much harvest in the existing tank space available
considerably less requirements on the storage process
reduction of investment costs, because the apparatures for the production of concentrate are cheaper and involve lower manufacturing costs than the storage tanks that would be necessary otherwise.
simpler and cheaper transportation, because weight and volume of the juice are reduced to a fraction.
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For the production of starch conversion products, the starch molecules are either entirely or partially broken down into their basic constituents by hydrolysis, i.e. by catalytic action of acids and enzymes in an aqueous suspension.
Dextrose
pure D-glucose, a final product that cannot be hydrolytically decomposed any further.
Glucose syrup (starch syrup)
contains D-glucose, maltose, isomaltose and high molecular sugar and it is produced by prematurely stopped hydrolysis. The decomposition degree of this product ranges from 20 to 65 DE. The DE value (dextrose equivalent) indicates the degree of conversion. It refers to the content of D-glucose relative to the total dry substance.
Maltodextrine
a starch decomposition product of less than 20 DE and more than 3 DE.
Maltose syrup
consists of approx. 72 % maltose, 18 % glucose, 10 % iso-maltose. It is produced by enzyme conversion of starch of different origin.
Isoglucose syrup
partially isomerized glucose juice (FCS = high fructose corn syrup).
Typical composition:
D-glucose 53 %
D-fructose 42 %
oligo-saccharide 5 %
The indexes 42, 55 or 70 indicate different fructose contents.
D-sorbitol
reduction product of D-glucose (starting material for vitamin C synthesis).
D-mannitol
reduction product of D-glucose.
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Evaporators
Since 1908, evaporators are planned, designed and delivered world wide for different fields of application at the location of the ANA-Verfahrenstechnik GmbH.
This longtime experience is to you at the disposal. We design the evaporating plants according to customers’ requirements. We deliver units ready to use as well as single components.
ANA- evaporators come up to all requirements in view of product attributes, operator convenience, reliability and economics. Such requirements are very different in several ranges where we operate.
Industrial applications follow in the food industry, pharmaceutical and chemical industry.
Evaporating plants of ANA-Verfahrenstechnik GmbH are used to concentrate:
* milk, whey and derivatives
* fruit juice like e.g. from citrus fruits incl. aroma recovery
* starch and beet sugar juices
* essences from coffee and plants
* glue and gelatine
* acids, bases and salts like sodium aluminates, sodium sulphite and – hydrosulphide
* organic and inorganic solutions like lactam water as well as
* sewage
In ANA- evaporators following constructions are used:
* down-draught evaporator
* cimbing evaporator
* recirculation evaporator
* forced-circulation evaporator
* falling film evaporator and
* agitator evaporator
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Fives Cail has been providing outstanding evaporators to its customers for more than 150 years. Drawing on this long experience, the Group continues to revolutionize evaporator technology by efficiently adapting the falling film to cane sugar processing. It has built the world's largest evaporator, with an exchange area of 7,540 m2.
Fives Cail now offers 3 distinct evaporator designs perfectly adapted to beet and cane sugar plants and refineries: rising film evaporators, and distinct falling film models for beet and cane sugar.
With more than 500 units sold, Fives Cail evaporators are acknowledged for their excellent heat-exchange performance, minimal colour increase and entrainment.
Easy installation
Local fabrication ensures rapid delivery and lower cost
Easy adaptation: small footprint; outdoor installation possible; easy integration in existing multiple effect stations
Outstanding performance
High heat-exchange coefficient for both beet and cane applications thanks to specific and well adapted designs
Low ΔT on all juices (high or low brix)
Unrivalled reliability
Integrated skirt protects the tube bundle from vibrations
Proven designs ensure maximum sugar yield
Easy maintenance
Falling film (beet design): low risk of fouling and minimal juice colour increase thanks to short retention time
Falling film (cane design): removable upper part facilitates cleaning (cleaning frequency reduced by 2 to 3)
Fives Cail's equipment for evaporation :
Falling Film Evaporator
Rising Film Evaporator
Tubular Juice Exchanger
Barometric and multi jet condenser
Optimise your boiling house
Control brix in your evaporator by installing our Hydrotrac or Monotrac probes.
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Advantages of PPC's Ion-Beam-Sputtered (IBS) Dielectric Thin Films
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Durable, dielectric thin films are easy to clean and chemically resistant
Dense, non-porous structure is insensitive to moisture
Low scatter and absorption losses result in high-damage thresholds
Repeatable, highly controlled process for precise layer control
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At PPC, we use ion-beam sputtering (IBS) technology because IBS is a repeatable and controllable process that results in dense, durable, high-damage-threshold thin films. Since the materials are directly sputtered onto the substrate, the process can be precisely controlled and easily automated so that films can be deposited with extremely high accuracy and repeatability.
Unlike conventional evaporative and ion-assisted films that have porous microstructures, IBS films have extremely densely packed structures that make them impervious to water vapor, resulting in an insensitivity to changes in heat and humidity, even in a vacuum environment.
Types of coatings that PPC does every day on standard or customer-supplied substrates:
High reflectors
Anti-reflection (ARs)
Beamsplitters
Polarizers
Partial reflectors
Dichroic mirrors
Non-polarizers
Low dispersion
Broadband dielectric
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OptoSigma supplies a wide selection of optical thin film coatings. These coatings are often provided as part of the optical component but they may also be ordered separately to be applied to an uncoated element. For example, it is possible to apply an Anti-Reflection coating to any uncoated lenses, windows or optical fibers. Also reflecting coatings may be applied to uncoated substrates to form mirrors or partial reflectors. To make this process simple we have listed some of our most common standard coatings. To order you simply append the coating suffix to the base part number and specify the surfaces to be coated. If you don't find the exact coating you need please ask us to provide you with a custom solution. Our coating engineers will use the latest design software and production techniques to provide you with the coating you require.
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Optida Co offers various types of AR, HR, PR, filter or polarizing coatings. The coating could be provided on customer substrates or our own.
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Thin film coating is a vacuum deposition procedure used to enhance the transmissive properties of an optical surface. The most common types of dielectric coatings are anti-reflection and high reflection coatings, but beam-splitter, band pass filter, edge filter, and polarizing coatings are also available. Because thin film coatings are more durable than optical glass, coatings also help protect an optic surface from scratches and the environment.
Optimax produces optics up to 300mm in diameter with a wide variety of narrow and broadband anti-reflection coatings including doublet interface coatings. Both metal and dielectric mirror coatings are also available. For custom coatings, we utilize TFCalc thin film design software. Please see the reverse side for sample reflectance curves.
Optimax performs test runs of all coatings before beginning production to ensure a good design. We use a Perkin-Elmer Lambda 900 Spectrophotometer to check the performance of the coating upon completion. Adhesion, abrasion, and humidity tests are available to verify coating durability in accordance with sections of MIL-C-675C, MIL-C-48497A, and MIL-C-13508C specifications. Laser damage testing is also available upon customer request.
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Standard Specifications
Diameter: 0.995" +/- 0.005"
Thickness: 0.030" & 0.020" +/- 0.005"
Surface Quality: 60/40 S & D
Surface Accuracy: 1/4 over 85% clear aperture
Edge Bevel: 0.010" Maximum @ 45°
P2S: High Polish two sides
Quantity: Volume Discounts available
Custom: VPG manufactures custom witness/diffusers with varying thickness, dimensions, materials, flatness and surface finish. Call for pricing on your special requirements.
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he offered HALIDES are useful as starting materials for production by thermal evaporation of transparent thin-film interference coatings, which improve the optical characteristics of workpieces made of glass, quartz, single crystals, semiconductors, etc.
Used for deposition of mono- and multilayer optical coatings, they are effective in ultraviolet, visible and infrared spectral regions. Halides, fluorides in particular, is the most early class of film-forming materials, used as one of the first as thin-film dielectric antireflecting coatings in optics.
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Corona treater model BHSN ( BOPP-PET industry).
The field of BOPP-PET film has always been for years a key-field for ME.RO. Only an history and a very long experience can allow you to manufacture treaters able to guarantee a complete reliability as these big producing plants require. It is not by chance that nowadays ME.RO can be considered the most important mufacturer for this application. This is demonstrated by the fact that the most important producers of BOPP film around the world have joined our technology to reach important treatment results with no stops of production for years.
MAIN CHARACTERISTICS:
- Web width up to 10.500 mm.
- Specific power (energy density) kept strictly constant during running.
- Special electrode design to give the best transfer of power on the film and to maintain it clean during running.
- Special electrodes in AISI 316 stainless steel able to heat expand without modification of the pre setted air gap (easy heat expand system).
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AcXys Technologies offers a fully integrated device, which can be combined with plasma equipment in order to realize coatings.
This device features a nozzle and a heating unit. Coating deposition is feasible on many materials. Small spots or wider areas can be processed as well.
Use appropriate nozzle for patterning applications.
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