The present invention provides novel process for preparation of olmesartan medoxomil i substantially free of olmesartan acid impurity ii comprising, reacting trityl olmesartan medoxomil iii with acid, filtering the precipitate of trityl alcohol, subjecting the filtrate to agitated thin film drying and recovering olmesartan medoxomil i. Atfdagitated thin film dryers chem process systems. The splashed feed will form a film over the surface of the cylinder and due to the gravity effect, film will slide over the cylindrical vessel. The typical agitated thin film evaporator consists of a tubular heat transfer area with an external heating jacket and a fastrevolving, inner rotor with flexible or rigidread more. Agitated thin film dryeratfd for evaporation of watersolvents to make concentrated liquid to dry powder upto 5% moisture. Performance evaluation of an agitated thin film evaporator. A horizontal agitated thin film dryer atfdh has a centrally located rotor having closely fitting blades. Different types of evaporators and their applications.
Obtainable products are enormously valued in domestic market for their variety. Agitated thinfilm evaporators atfe are frequently employed in the industrial. Modeling of dryer, penetration theory, scraped surface, thinfilm evaporation, vacuum contact drying. Agitated thin film evaporators are successfully used for the purification of organic compounds that are heat sensitive, viscous and have high boiling points. Us8981110b2 process for the preparation of olmesartan. Heat transfer coefficients in an agitated thin film evaporator. The design of agitated thin film dryer atfd is difficult both mechanically and process engineering point of view. Agitated thinfilm evaporators are considered ideal for materials that are not easy to handle. Constant renewal of layerfilm near the wall which helps in reducing the fouling. I have to design an agitated thin film evaporatordryer.
The feed is converted into a thin film, which is intensely agitated due to action of the highspeed rotor. The outstanding heat transfer rate for hot solid products enables cooling of large amounts of solids in a compact machine compared to usually. Established in 2014, concept process equipments is a fast growing company and captivated in manufacturing of a wide range of agitated thin film evaporator, agitated thin film dryer, short path distillation unit, paddle dryer and many more. Agitated thin flim dryer atfd agitated thin film dryer atfd. Agitated thin film dryer manufacturer and supplier. Evaporation is an operation used to remove a liquid from a solution, suspension, or emulsion by boiling off some of the liquid. Our dryers are widely used throughout the process industries to convert liquids, slurries, and pastes to freeflowing solids in continuous, single pass operation. Agitated thin film dryer atfd manufacturer in hyderabad. Agitated thin flim dryer atfd agitated thin film dryer. Agitated thinfilm dryers atfds are used to produce dry freeflowing powder from slurrysolutiontype feed and widely implemented in. Simulation of an agitated thin film evaporator for. Our dryers have selfcleaning heating surfaces such that the. Concentration is one of the important operations in food industry with applications ranging from the production of condensed milk, paste and purees from fruits. Mathematical modeling of agitated thinfilm dryer core.
Agitated thin film evaporatordryer design posted in student. The key elements of a vertical thin film evaporator are shown here processdesign, mechanicaldesign and physicalproperty parameters must all be taken into account william b. Agitated thinfilm drying atfd has been proposed for efficient and mild drying of viscous liquid foods, pastes or pureed foods. Agitated thin film dryer design is the ideal apparatus for continuous processing of. The key elements of a vertical thinfilm evaporator are shown here processdesign, mechanicaldesign and physicalproperty parameters must all be taken into account william b. Agitated thin film dryer manufacturer comprises of cylindrical and vertical body with warming coat and a rotor within the shell which is outfitted with columns and pendulum cutting edges. Horizontal thin film dryers are suitable also for applications other than drying like solid particle cooling and product melting. Request pdf agitated thinfilm drying of spinach juice agitated thin film dryers atfd has been considered as an effective technology for drying viscous liquid foods, pastes or pureed foods. We define the evaporation process as one that starts with a liquid. Thin film dryers are characterized by a mechanically agitated thin product layer inside the dryer fig. Agitated thin film dryers agitated thin film evaporators and dryers are used to concentrate, refine or recover a valuable product through distillation or similar thermal separation processes.
Agitated thin film dryer manufacturer and supplier by. Atfd agitated thin film evaporators manufacturer in india. Agitated thin film dryer manufacturer and supplier atfd is represents evaporation of watersolvents to make concentrated fluid to dry powder or pieces. The design process a variety of computerized, manual, thermal and mechanical. Welcome to the world of agitated thin film dryer atfd and other heat transfer equipments. Vacuum pump manufacturers in mumbai, india erpl india. Flow pattern and heat transfer in agitated thin film dryer.
Author links open overlay panel nongluk chawankul a supaporn chuaprasert a peter douglas b. Being a leading company of vacuum pump manufacturers in mumbai, india, we design and manufacture a wide range of products such as water ring vacuum pumps, industrial vacuum pumps, rotary vacuum pumps, liquid ring vacuum pumps and many other types of pump products. The feed enters the shell tangentially and gets spread along the inside surface of the shell into a thin film. The rotor blades not only deposit the liquid on the wall, but also promote turbulence in the liquid. Agitated thin film dryer vertical atfdv vacuum dryer. The typical agitated thin film evaporator consists of a. Film dryer agitated thin film dryer manufacturer from. Shachis team of engineers understand that the physical design of the fluid dryer is critical for the drying efficiency and effectiveness. Our customized design maintains the crucial thermal equilibrium, controlling the correct moisture content of material and thus ensures complete drying in minimal time. The feed in the form of solution, slurry or wet cake is converted into a thin film, which is intensely agitated due to action of the highspeed rotor.
Manufacturer of agitated thin flim dryer atfd agitated thin film dryer atfd, atfd agitated thin film dryer offered by ketav consultant, ahmedabad. Due to its inherent design features, it is ideal for thermal treatment of solutions and heat sensitive products, where reduced operating temperatures and vacuum operating pressures are desirable. Ketav consultant leads by virtue of superior engineering design capabilities, manufacturing excellence and a project based approach committed to deliver high performance total evaporation solution customized to our client requirement. The rotor encapsulated inside the heating shell wipes the fluid film from the walls. The typical agitated thin film evaporator consists of a tubular heat transfer area with an external heating jacket and a fastrevolving, inner rotor with flexible or rigid. Dryer feeding equipment drying in the process industry. Agitated thin film dryer manufacturer of industrial. Agitated thinfilm drying atfd has been proposed for efficient and mild drying of. Manufacturer of waste water effluent evaporation system with atfd for complete zero discharge. Although tubular evaporators work efficiently with a range of materials, they have met little success in handling heatsensitive, fouling, viscous, and highboiling liquids.
Typ cpdryer purified glycerine dewatering deocolumn condes. Find details of companies offering agitated thin film dryer at best price. Firstprinciples nonequilibrium dynamic modelling of agitated thin. Manufacturer of evaporators plant, mee,multi effect evaporator,atfd,atfe,agitated thin film dryer,agitated thin film evaporator, heat exchanger,zero liquid discharge system,etp,effluent treatment plant,short path distillation, ahmedabad, gujarat, india. Ofi technical scientific conference istanbul tuesday may, 2014. It is thus a thermal separation, or thermal concentration, process. Atfe mannufacture mee,multi effect evaporator,atfd.
This precisely agitated thin film dryer has made it conceivable to dry item with complete dissolvable recuperation. Agitated thinfilm drying of spinach juice request pdf. Find here information of agitated thin film dryer selling companies for your buy requirements. Fruit and vegetable processing spray dryer flash dryer rotary dryer continuous fluid bed dryer paddle dryer steam tube bundle dryer rotary vacuum dryer cone screw dryer agitated thin film evaporator falling film evaporator forced circulation evaporator multi effect evaporator cone screw. A vertical agitated thin film dryer atfdv has a centrally located rotor having closely fitting blades. Designed for product recovery and other severe service applications such as yours, this drying technology arises from over years experience in soap plant glycerin and inorganic salt recovery.
The combination of short residence time, high turbulence and rapid surface renewal permits the agitated thinfilm dryer to handle the heatsensitive, viscous and fouling feed streams successfully. Unlimited viewing of the articlechapter pdf and any associated supplements and figures. Slurries, thick concentrates, viscous materials can be concentrated dried in this equipment. The present invention relates to an improved process for the preparation of metformin hydrochloride by removing solvent from a solution comprising metformin hydrochloride using agitated thin film dryer. Atfd agitated thin film dryers heat transfer surface condensers heat exchangers pressure vessels zero liquid effluent discharge systems caustic concentration systems salt recovery plants. Request pdf mathematical modeling of agitated thinfilm dryer agitated thinfilm dryers atfds are used to produce dry freeflowing. Agitated thinfilm evaporators free download as word doc. Please help me with the design equations procedures for this. Simulation of an agitated thin film evaporator for concentrating orange juice using aspenplus tm. In handbook of industrial drying, 4th ed crc press.
Agitated thinfilm evaporators thin film heat transfer scribd. Agitated thin film dryers atfds are widely used in chemical, pharmaceuticals and food industries to produce dry free flowing powder. Mathematical modeling of agitated thinfilm dryer request pdf. Atfe systems experience the key to the successful use of the atfe is the proper selection and installation of ancillary equipment and instrumentation required to allow the atfe to operate. Agitated thin film dryer manufacturer,agitated thin film. Besides, our quality evaluators test the quality of these obtainable. The fluid to be handled is spread on the inner wall of the dryer evaporator with the multi armed agitator resulting into a thin film on the walls.
The outstanding heat transfer rate for hot solid products enables cooling of large amounts of solids in a compact machine compared to usually used cooling screws and without cooling air. Wo2014041566a2 an improved process for the preparation. Established in the year 2010, kep engineering services private limited is a leading manufacturer and service provider of industrial evaporator, agitated thin film dryer, chemical process equipment, industrial reverse osmosis system, agitated thin film dryer installation services, water treatment plant commissioning services and much more. Due to its inherent design features, it is ideal for thermal treatment of solutions and heat sensitive products, where reduced operating temperatures and. These products are manufactured using topgrade quality raw material, which is procured from the most reliable and authentic vendors in the market. Agitated thin film dryer atfd is a very modernized and a dynamic. Product experience in atfd pharma aos pharma effluent methanol grain effluent syrup ground water ro reject. We present comprehensive variety of agitated thin film dryer that are available in varied sizes and specifications. Normally, the drying process in a vertical thin film dryer consists of. Based on application either recovered solvent or dry product is important. Flow pattern and heat transfer in agitated thin film dryer request pdf. Agitated thin film evaporator typically used for fluids which are difficult to handle due to higher sensitivity and viscosity. We report a study on the influence of product and process. Economical option against evaporator with dryer for small capacity plants.
Company is manufacturer of multiple effect evaporation plant for waste water zero discharge from more than 12 years. Centpro engineering pvt ltd provides pilot plants and agitated thin film dryer atfd to all industries i. Request pdf mathematical modeling of agitated thinfilm dryer agitated thin film dryers atfds are used to produce dry freeflowing. The fed feed will get into contact with the hinged blades attached to the shaft, the high rpm blades shall splash the feed onto the surface. Contact verified agitated thin film dryer manufacturers, agitated thin film dryer suppliers, agitated thin film dryer exporters wholesalers, producers, retailers and traders in india. The liquid is distributed in the form of a thin film on the heated wall where the heat transfer takes place. Welcome to the world of agitated thin film dryer atfd and other heat transfer equipment. The hinged rotor blades keep the film under intense agitation preventing any scale formation. Ketav consultant leads by virtue of superior engineering design capabilities, manufacturing excellence and a project based approach committed to to deliver high performance total evaporation solution customized to our client requirement.
1347 1480 144 197 375 1351 320 930 1321 570 484 315 1393 349 144 463 979 4 357 1109 32 272 164 617 797 151 328 602 663 893 2 749 188 499 422 978 817 602 519 821 662 906 1476 951 720 650 1196 8