thin film evaporator for evaporation system | de dietrich process systems

thin film evaporator for evaporation system | de dietrich process systems

Thin-film or thin-layer evaporators have been developed to purify temperatures sensitive products by evaporation. The temperature sensitive product can be both the high and the low boiling component in the mixture. The target was to operate at low evaporation temperatures means low vacuum and to minimize the residence time of the product in the evaporator. In order to reduce the evaporation temperature at the heated evaporation surface as far as possible the pressure incl. the hydrostatic pressure due to the liquid product itself should be minimized.

The rotating wiper equally distributes the down flowing liquid feed on the inner side of the wall. The film is about 0,1 to 0,5mm thick depending on the viscosity of the liquid, type of wiper system, rotating speed and liquid throughput. This thin film provides almost no hydrostatic pressure, minimum hold-up and almost no temperature and concentration gradient due to the good radial mixing performance. This provides highest evaporation rates means shortest residence time in the evaporator at lowest temperatures permitting the production of high quality temperature sensitive products. The vapors are mostly guided upwards in a counter current manner to a down coming condenser. A typical flow chart of a pilot plant like system can be seen below:

The thin film evaporators of De Dietrich Process Systems are made of highly corrosion resistant QVF borosilicate glass 3.3 or De Dietrich glass-lined steel both providing an extremely smooth surface reducing the risk of material sticking to and hence remaining and degrading on the hot evaporation surface. The transparent borosilicate glass enables on optimum adjustment of the rotating speed while observing the inner surface of the evaporator.As drive for the wiper system the proven stirrer drives with single/double mechanical or magnetic seal from our range for reactors are used providing a reliable long-term vacuum tight operation.

The evaporators can be heated with thermo-oil or steam. The maximum permissible temperature on the inside of the evaporators is set by the material and construction of the wiper system developed by us.

The maximum evaporation rates per heat transfer area depend mainly on the heat conductivity of the material of the evaporator and the maximum temperature difference between the boiling point and the temperature of heating jacket. As an orientation, evaporators made of borosilicate glass 3.3 DN300 with 1m heat transfer area permit the evaporation of up to 80kg/h of organic solvents.

Les informations recueillies sur ce formulaire sont enregistres dans un fichier informatis par De Dietrich pour entrer en contact avec vous suite votre candidature. La base lgale du traitement est lexcution de mesures prcontractuelles. Les donnes collectes seront communiques aux seuls services comptents au traitement de votre demande chez De Dietrich. Les donnes sont conserves la dure ncessaire la ralisation des finalits pour lesquelles elles ont t collectes. Vous pouvez accder aux donnes vous concernant, les rectifier, demander leur effacement ou exercer votre droit la limitation du traitement de vos donnes. Vous pouvez retirer tout moment votre consentement au traitement de vos donnes. Pour exercer ces droits ou pour toute question sur le traitement de vos donnes dans ce dispositif, vous pouvez vous adresser par courrier lectronique [email protected] Si vous estimez, aprs nous avoir contacts, que vos droits RGPD ne sont pas respects, vous pouvez adresser une rclamation la CNIL.

agitated nutsche filter and filter-dryer | de dietrich process systems

agitated nutsche filter and filter-dryer | de dietrich process systems

The filter/dryer performs a multitude of tasks including filtration, displacement or reslurry washing, vacuum or convection drying. It can discharge wet cake, slurry, liquid, or dried cake to less than 0.1% moisture.

Particularly suited for the handling of cytotoxic or highly potent material (HPAPI) , the De Dietrich solution has been designed with particular attention to ergonomics and practicality, whilst also maintaining cleanability. This makes the design particularly suited to the pharmaceutical industry.

When traditional nickel alloys (Stainless steel and Hastelloys such as C-22,C-276, B-3, ...) are not resistant enough, De Dietrich can offer a glass-lined agitated filter-dryer solution. The outstanding corrosion resistance of enamel combined with the filtration and drying know how makes for a unique solution

For products requiring sterile manufacturing conditions, filter-dryer can be specifically designed to include stem-in-place (SIP) capabilities, and eliminate all internal dead spaces. Key areas design include the side discharge valve, mechanical seal and the base design.

The Rosenmund Gas Knife System is a unique and innovative solution that enables a total product discharge without manual intervention tests. A number of blowing nozzles placed on the agitator blade are used to discharge the product with a gas stream.

Gas Knife System A unique and innovative solution that enables a total product discharge without manual intervention. Various materials of construction including 316L stainless steel, Alloy 20, C-22 and others.CIP/WIP and SIP systemsHeated agitator Various main shaft seal designs

Les informations recueillies sur ce formulaire sont enregistres dans un fichier informatis par De Dietrich pour entrer en contact avec vous suite votre candidature. La base lgale du traitement est lexcution de mesures prcontractuelles. Les donnes collectes seront communiques aux seuls services comptents au traitement de votre demande chez De Dietrich. Les donnes sont conserves la dure ncessaire la ralisation des finalits pour lesquelles elles ont t collectes. Vous pouvez accder aux donnes vous concernant, les rectifier, demander leur effacement ou exercer votre droit la limitation du traitement de vos donnes. Vous pouvez retirer tout moment votre consentement au traitement de vos donnes. Pour exercer ces droits ou pour toute question sur le traitement de vos donnes dans ce dispositif, vous pouvez vous adresser par courrier lectronique [email protected] Si vous estimez, aprs nous avoir contacts, que vos droits RGPD ne sont pas respects, vous pouvez adresser une rclamation la CNIL.

rotary vaccume peddle dryer manufacturer in india, supplier & exporter in pune, india | nes india engineers pune maharashtra india

rotary vaccume peddle dryer manufacturer in india, supplier & exporter in pune, india | nes india engineers pune maharashtra india

Chemical Reactor Limpeted Reactor Jacketed Reactor Mixing Vessel Condenser & Heat Exchanger Fixed Tube Sheet Shell & Tube Type Floating Tube Sheet Type Fin Tube Heat Exchanger Industrial Dryers Atmospheric Tray Dryer Vaccume Tray Dryer Fluid Bed Dryer Rotary Cone Vaccume Dryer Rotary Vaccume Peddle Dryer (RVPD) Ribbon Rostere Cum Dryer Blenders Ribbon Blender Double Cone Blender Octagonal Blender Centrifuge Machines Filter Pressure Nutsche Filter (PNF) Vaccume Nutsche Filter (VNE) Sparkler Filter Sigma Kneader Mixer S S Storage Tanks Herbal Extraction Plant Sifter Multimill Sifter Vibro Sifter

We Ness India Engineers from Pune, Maharashtra, India are a leading rotary paddle dryer manufacturer, supplier and exporter in India. We offer a wide range of RPVD with different specifications and capacities as per customers requirements. Our highly durable and efficient RVPD are available for multipurpose applications. As per capacity requirement, we provide rotary paddle dryer with various sizes.

RVPD is made with various kinds of parts such as paddle and shafts with hallow shaped, jacket, dust collector, condenser, vacuum pump, receiver and lump-breaker. The Lump-breaker is used to prevent lumps which are produced by materials while drying operation. It consists of a jacket arrangement for heating and cooling purposes. The heat mediums such as hot water, steam, fluids that can be travelled in dryer through the jackets.

We are supplying high quality RVPD to various industries such as pharmaceutical, chemical, electronics, food and many more for drying materials. We are widely accepted as a Rotary paddle dryer manufacturer in the markets.

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rotary vacuum dryers manufacturer energy efficient industrial batch type vacuum dryer. | welcome to singhasini dry chem engineers & consultants, manufacturer & exporters of rotary vacuum dryers, in kanpur, india

rotary vacuum dryers manufacturer energy efficient industrial batch type vacuum dryer. | welcome to singhasini dry chem engineers & consultants, manufacturer & exporters of rotary vacuum dryers, in kanpur, india

In a chemical Industry, of all the Unit Operations Drying has the widest application and a proper appreciation of the mechanism of drying and the equipment available to resolve a drying problem on an industrial scale is correspondingly important. Most manufacturing operations, particularly in the chemical and metallurgical fields, entail one or more stages where drying is one form or another is carried out.

Drying costs account for a large portion of the processing costs associated with the manufacture of Chemicals, Pharmaceuticals, Dye Stuffs and other products. A Filter Press or a Centrifuge is often used to remove as much water or solvent as possible, there by reducing the heat load in the drying process. Mostly and unfortunately the cake is normally dried in a tray dryer, where the energy consumption is excessively high. Apart from high energy costs, tray dryers also have high labor cost for loading and unloading of the product. Product loss due to manual loading and unloading long drying time and generally dirty operating area.

SDC ROTARY VACUUM DRYER offers a clean, simple and very effective method of drying wet cake, powder and even the slurry. The drying is under vacuum and hence it is possible to dry heat sensitive materials at temperatures well below 100(C without suffering the problem associated with very long drying periods. Valuable organic solvents can also be conveniently condensed and recovered. Thus production rate can be greatly increased and production bottle necks created by extended drying time can be brought down to minimum and with the result factory floor space can be put to the fullest possible use, minimum labor can be employed in view of the high cost of labor and maximum thermal efficiency can be achieved thus saving the rupees due to high fuel cost and hence over all profitability of an industry can be increased.

SDC ROTARY VACUUM DRYER consists of stationary cylindrical shell mounted horizontally in which a set of agitator blades mounted on a revolving central shaft stirs the solid being treated. Heat is supplied by circulation of hot water, steam or dowtherm through a jacket surrounding the shell and, in larger units through the hollow central shaft having hollow paddles. The agitator in case of blades is either a single discontinuous spiral or a double continuous spiral. The outer blades are set as closely as possible to the wall without touching. In case of hollow shaft having hollow paddles each paddle has specially designed scraper blades. The scraper blades in both type of agitator design scrape the entire internal surface of the dryer and move the material longitudinally and also turns the material continuously so that the same particles do not remain in contact with hot surface for long time.

Heavy duty trunnions and bearings are provided along with reduction gear box and electric motor. A helical gear pinion arrangement is provided to rotate the agitator by gear and motor at desired RPM. Agitator is supported on bearings and bearing housing in such a manner that once alignment is done in shop floor during manufacture of the dryer it can never be disturbed later on. In case of hollow shaft with paddles a provision is made of insert four breaker bars of approximately same length as dryer shell which can be used for size reduction of particles when drying is in progress. These bars prevent the material from caking and keep the heat transfer surface clean. It is necessary to use them only when the characteristics of material is such that during certain phase of drying, the material becomes distinctly sticky, but it is not possible to use them when the material becomes doughy or viscous.

Wet cake or slurry which is to be dried is charged through the feeding point while agitator is rotating in the clock wise direction. Vacuum is applied by starting the water ring type vacuum pump and the dryer comes under vacuum through receiver/condensing tank, condenser and dust catcher. The heating medium is passed in to the jacket and cooling water is let into the condenser and condensing tank/receiver. Vigorous evaporation of moisture takes place under vacuum, and vapor passes through the bag filter of dust catcher, goes in to condenser where it condenses and collected in the receiver. Evaporation under high vacuum and low temperature result in faster recovery of maximum solvents. After some time, sample canbe drawn from inside the dryer and tested for its moisture content. Two or three batches will give accurate idea regarding the exact time required for drying. When the product gets dried, it is discharged by opening the Discharge Valve .

Thus the drying in a Rotary Vacuum Dryer is a batch operation. Drying time depends on material being dried, amount of solvent or water to be removed, desired final moisture content, permissible jacket temperature etc.

Vacuum Dryer Specification: MODELAVG.WEIGHT OFAPPROX.MOTOR VD-4025 - 301.63 VD-10060 - 803.15 VD-200125 - 1504.65.0 - 7.5 VD-300175 - 2506.17.5 VD-400250 - 3258.17.5 - 10 VD-600350 - 4759.510.0 - 12.5 VD-800475 - 65010.912.5 - 15.0 VD-1000600 - 80013.512.5 - 15.0 VD-1200725 - 95014.815 - 20 VD-1600950 - 130017.820 - 25 VD-20001200 - 160021.225 - 30 VD-24001450 - 190025.725 - 40

rotary vacuum dryer manufacturer in gujarat, india | rotary vacuum dryer manufacturer in india

rotary vacuum dryer manufacturer in gujarat, india | rotary vacuum dryer manufacturer in india

Dudhat Chemequip is designer & manufacturer of Rotary Vacuum Dryer custom made as per client requirement. Rotary Vacuum dryer is easy, clean & effective way for drying wet powder & slurry by heating with a batch process.

rotary cone vacuum dryer promas engineering pvt. ltd

rotary cone vacuum dryer promas engineering pvt. ltd

A rotary cone vacuum dryer is used for drying and mixing raw materials to make a product. This machine can be used in pharmaceutical materials, making insecticides, pesticides, and also for food products and cosmetics.

Promas Engineers is a well-known organization for rotary cone vacuum dryer manufacturers, suppliers, and exporters according to ISI guidelines. We have fulfilled every customers requirements since 1990 from India and all over the world.

The RCVD encourages improved drying effectiveness, low-temperature tasks, and the economy of the procedure by complete dissolvable recuperation. It helps cGMP based working by accomplishing ideal residue control while offering different advantages of charging and releasing of materials. The drying unit furnished with lump breakers breaks huge bumps and thus powders them (in single cones). The rotating activity of the dryer along with the mechanical activity of the breakers chops down drying time and gives an irregularity free product.

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