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{ "products": [ { "_id": "607c10460c227700019f8dbd", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Spin Flash Dryers", "description": "Spin Flash Dryers if the wet cake is a paste or sludge, swirl flash dryer is the most suited for drying application. The dryer is fitted with a mechanical agitator which helps to disperse the wet cake without any need for back mixing of the dry powder. \n\nthe feeding system includes a feed tank with agitator and a screw feeder for feeding into the drying unit. The heart of drying process is cylindrical drying chamber, where the drying air enters the air distributor. The tangential air distributor of special design introduces the air as an intense swirl flow. \n\nthe simple spin flash dryer is designed to handle materials that can be suspended directly in air. The drying process usually is completed in 0. 5 - 2 sees, and the final moisture is generally in the constant rate drying zone. Various types of spin flash dryers designs are available based on uniform / non uniform particle size of the feed / product. \n\nthe feeding of cake is through specially designed paddle mixer / screw conveyor with / without rotary injector depending on rheology of feed material. For difficult to handle feed materials part of dried powder can be re-cycled. Spin flash dryers are suited for filter cakes, semi dried powders.", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": null, "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 29, "imageuri": "https://productimages.withfloats.com/actual/607c104ae6a6ad000178d53e.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/607c104ae6a6ad000178d53e.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2021-04-18T10:56:06.353Z", "updatedon": "2021-04-18T10:56:06.353Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN/products/spin-flash-dryers/29", "availableunits": -1.0, "iscodavailable": false, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "None", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5ead0b14d13f650001817462", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Forced Circulation Systems:", "description": "Forced circulation Evaporator is used where boiling of the product is steering clear due to its bad foul characteristics. When the mixture flows through the heat exchanger it get partially vaporized because of the decrease in pressure. In this process powerful circulation pump forces the liquid through the help of tubes. The heat is picked by the shell side which carries steam. The height of the liquid is designed in a way thio stay away from the nucleate boiling inside the evaporator tube bundle. This type of equipment can be mounted vertically or horizontally according to the client’s need. Additionally they can also strengthen the solid substance into the liquid but before drying. They ensure moisture free complete process. But in this high power pump as well as high flowing velocity in the tubes are required. The efficiency of forced circulation evaporators is completely dependent on the heat temperature of the steam and the solution. Advanced Drying System. have a total quality management system that has the responsibility of matching the designs of our products to the international market standards. We integrate those forced circulation evaporator design to deliver the best quality service from our side. Meticulous Features Of Forced Circulation Evaporator: Ideal For Crystallization Concentrated Values Steam Economy Multiple Arrangements For High Performance High Capacity Minimum Consumption Of Energy Applications Of Forced Circulation Evaporator Waste Water Concentration Concentration Of Inorganic As Well As Organic Salt Solutions Evaporative Crystallization", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": null, "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 24, "imageuri": "https://productimages.withfloats.com/actual/5ead0b1efc0e6300013ba11d.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/5ead0b1efc0e6300013ba11d.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2020-05-02T05:54:28.027Z", "updatedon": "2020-05-02T05:54:28.027Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN/products/forced-circulation-systems-/24", "availableunits": -1.0, "iscodavailable": false, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "None", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5cef5847b4600a00010339aa", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Laboratory Spray Dryers :", "description": "Used for spray drying & encapsulation and others; Designed for solvent and aqueous feeds; Visible process due to glass assembly; Easy to handle glassware High performance cyclone; High yields; Self contained and supplied complete and ready for immediate operation; Compact design and easy to move around; Fast drying process [up to 1000 ml / hr]; Shorter times to optimize formulations. Reproducible powder production at lab scale; Ideal for scale up to pilot or production; All units feature a simple and intuitive touch screen opration system with recipe funtions and USB data logger. One of the reasons for the reproducibility of the Lab 1 Glass Laboratory Spray Dryer is the durable and precise nozzle technology. The nozzle comes with a de blocker needle which can be pushed through the nozzle in case of clogging. The de blocker frequency is user selectable. Optional, nozzle cooling is available. The nozzle can be cooled with regular tap water. Spraying of heat sensitive product is possible. The touch panel PLC operating system allows the user to control all the system parameters with the touch of a finger. The blower, air heater and feed liquid pump are operated from this panel. The system parameters such as inlet hot air temperature, outlet exhaust air temperature, feed and blower frequency are set by touching the corresponding displayed value and entering the new value in the set screen that appears. A data trend screen shows a record of the air temperatures. heater output and feed liquid pump output during the experiment. The user can visually see the temperature record and quickly understand it. For data analysis, a daily report screen and experiment data can be viewed with option to save to an USB flash drive for use in a PC computer. Access to only two sides of the spray dryer is required for normal operation. The touch panel and product collection pot are located so that all operations are performed from one operating point.", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": [ "data trend screen", "system parameters", "temperature record", "hot air temperature", "daily report screen", "product collection pot", "heat sensitive product", "feed liquid pump output", "Laboratory Spray Dryers", "precise nozzle technology", "Reproducible powder production", "touch panel PLC operating system", "Lab 1 Glass Laboratory Spray Dryer", "intuitive touch screen opration system", "handle glassware High performance cyclone" ], "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 19, "imageuri": "https://productimages.withfloats.com/actual/5cef5849e33b680001efe8ea.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/5cef5849e33b680001efe8ea.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2019-05-30T04:12:55.834Z", "updatedon": "2019-05-30T04:12:55.834Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN/products/laboratory-spray-dryers-/19", "availableunits": -1.0, "iscodavailable": true, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "None", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5b6b3a814d9966054cd749a2", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Vibrated Fluid Bed Dryers:", "description": "Vibratory Fluidized Bed (VFB) is another type of fluidized bed where the mechanical vibration, enhance the performance of fluidization process. Since the first discovery of vibratory fluidized bed, its vibration properties proves to be more efficient in dealing with fine particles which appears to be very difficult to achieve with normal fluidized bed. Even though numerous publications and its popularity in industrial applications, the knowledge about vibratory dynamics and properties are very limited. Future research and development are needed to further improve this technology to bring it to another level. Standard type of vibratory fluidized dryer consist of vibrating tray conveyor where hot gases from the chamber will flow through the holes within the tray and come in contact with the materials to be dried. The tray area is big enough to tolerate constant flow of material through the bed and passed along the deck with a low depth on the tray. The vibrations to the deck are directed in vertical component to assist in fluidization of the material whereas the horizontal component of the vibration, support in transporting materials along the tray. Some of the advantages of vibratory fluidized beds include: Continuous drying throughout the unit. Handle products with a wide range of particle size and shape. Minimal fluidization velocity and pressure drop due to the vibration energy being transferred along the bed. Increase efficiency of gas to solid contact. Mechanical vibration enhances homogeneity and stability of fluidized bed layers. Easier to control the residence time distribution of processed material by manipulating the intensity of amplitude and frequency of vibration. Limitations of vibratory fluidized bed are as follow The inlet air temperature to the dryer process is limited. Climate condition can affect the unit’s thermal efficiency. Build-up of local expansion region lead to unstable behavior to the bed structure", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": [ "VFB", "unit", "deck", "Build-up", "hot gases", "amplitude", "materials", "low depth", "tray area", "intensity", "wide range", "vibrations", "performance", "particle size", "pressure drop", "dryer process", "Standard type", "bed structure", "solid contact", "tray conveyor", "constant flow", "fine particles", "Future research", "Handle products", "vibration energy", "Fluid Bed Dryers", "Climate condition", "unstable behavior", "vertical component", "vibratory dynamics", "thermal efficiency", "mechanical vibration", "fluidized bed layers", "vibration properties", "fluidization process", "horizontal component", "normal fluidized bed", "numerous publications", "inlet air temperature", "local expansion region", "industrial applications", "vibratory fluidized beds", "-Vibratory Fluidized Bed", "vibratory fluidized dryer", "residence time distribution", "Minimal fluidization velocity", "vibration enhances homogeneity" ], "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 16, "imageuri": "https://productimages.withfloats.com/actual/58e09acadefe4a0b5ccb0e1f.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/58e09acadefe4a0b5ccb0e1f.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2017-04-02T06:31:37.83Z", "updatedon": "2018-08-08T18:46:25.124Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN/products/vibrated-fluid-bed-dryers-/16", "availableunits": -1.0, "iscodavailable": true, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "UniquePaymentUrl", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5b6b3a814d9966054cd7497a", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Flash Dryers :", "description": "Flash Dryers are characterized by short residence time of few seconds. Hence, great care needs to be taken in dispersion of the feed in the drying air, which is generally in the form of cake so that true surface water gets evaporated form the feed . Otherwise, the larger particles in the feed material may require longer drying time than the smaller ones in order to reach the desired moisture content.\nFlash dryers are used for drying a wide range of products. It can be used to dry both organic and inorganic chemicals. However, inherently there are few limitations in the flash drying concept and experts like us provide best solutions to this family of drying systems.\nUnique Features.\nProduces free flowing powders in agglomerated or granulated form.\nProduces powders having a very low content of small particles (dustless).\nDries many thermoplastic and hygroscopic products that are problematic in other designs.\nIdeal for heat sensitive products as particle temperatures are kept low throughout the drying process.\nDrying is completed at low outlet drying temperatures, giving high energy utilization efficiencies.\nHigh drying efficiency and low energy costs.\nDirect drying with no initial diluting.\nContinuous processing with short drying time.\nLow operator overheads and minimum maintenance costs.\nPressure shock-resistant chamber for safe drying of organic products.\nAvailable in GMP design.\nApplication\nAgrochemicals.\nCeramics.\nFood and feed products.\nOrganic chemicals.\nPharmaceuticals.\nPigments and dyestuffs.\nPigments and dyestuffs.\nWaste products.\n\n\nSee More-\n\n", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": [ "powders", "GMP design", "wide range", "low content", "smaller ones", "feed products", "feed material", "-Flash Dryers", "best solutions", "Waste products", "Unique Features", "small particles", "organic products", "moisture content", "initial diluting", "larger particles", "low energy costs", "great care needs", "short drying time", "longer drying time", "true surface water", "inorganic chemicals", "short residence time", "hygroscopic products", "flash drying concept", "particle temperatures", "Continuous processing", "Low operator overheads", "High drying efficiency", "heat sensitive products", "minimum maintenance costs", "outlet drying temperatures", "energy utilization efficiencies", "Pressure shock-resistant chamber" ], "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 15, "imageuri": "https://productimages.withfloats.com/actual/58e098b80056370b6801833e.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/58e098b80056370b6801833e.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2017-04-02T06:22:47.642Z", "updatedon": "2018-08-08T18:46:25.03Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN//flash-dryers-/15", "availableunits": -1.0, "iscodavailable": true, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "UniquePaymentUrl", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5b6b3a804d9966054cd74965", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Laboratory Spray Dryers :", "description": "Used for spray drying & encapsulation and others; Designed for solvent and aqueous feeds; Visible process due to glass assembly; Easy to handle glassware High performance cyclone; High yields; Self contained and supplied complete and ready for immediate operation; Compact design and easy to move around; Fast drying process [up to 1000 ml / hr]; Shorter times to optimize formulations.\nReproducible powder production at lab scale; Ideal for scale up to pilot or production; All units feature a simple and intuitive touch screen opration system with recipe funtions and USB data logger.\n\nOne of the reasons for the reproducibility of the Lab 1 Glass Laboratory Spray Dryer is the durable and precise nozzle technology. The nozzle comes with a de blocker needle which can be pushed through the nozzle in case of clogging. The de blocker frequency is user selectable. Optional, nozzle cooling is available. The nozzle can be cooled with regular tap water. Spraying of heat sensitive product is possible. \nThe touch panel PLC operating system allows the user to control all the system parameters with the touch of a finger. The blower, air heater and feed liquid pump are operated from this panel. The system parameters such as inlet hot air temperature, outlet exhaust air temperature, feed and blower frequency are set by touching the corresponding displayed value and entering the new value in the set screen that appears. \nA data trend screen shows a record of the air temperatures. heater output and feed liquid pump output during the experiment. The user can visually see the temperature record and quickly understand it.\nFor data analysis, a daily report screen and experiment data can be viewed with option to save to an USB flash drive for use in a PC computer.\n\nAccess to only two sides of the spray dryer is required for normal operation. The touch panel and product collection pot are located so that all operations are performed from one operating point. \n\n\n", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": [ "+" ], "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 10, "imageuri": "https://productimages.withfloats.com/actual/58d73f9f97b7bd0ad050f913.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/58d73f9f97b7bd0ad050f913.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2017-03-26T04:12:15.106Z", "updatedon": "2018-08-08T18:46:24.95Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN//laboratory-spray-dryers-/10", "availableunits": -1.0, "iscodavailable": true, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "UniquePaymentUrl", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5b6b3a804d9966054cd74949", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Rotary Atomizer:", "description": "A coating applicator is disclosed which includes a rotary atomizer on a driven shaft. The shaft operates at high speeds. Coating material is supplied to the rotary atomizer. A pair of spaced bearings rotatably mount the shaft and a seal assembly is positioned between the rotary atomizer and the front bearing. The seal assembly includes a bearing cover having a cutting edge. A mating cap member surrounds the shaft and has a sealing shoulder which is engaged by the cutting edge. Exhaust air is used to cool the bearings, pressure the interior of the applicator and enhance the seal assembly. \nThe formation of sprays having the required droplet size distribution is vital to any successful spray dryer operation so that powder specifications can be met. Atomization is a high technology area where We has played a central role in the development and use of various nozzles and rotary atomizers in spray drying. We has mastered the manufacturing of atomizers for almost all products viz. dyestuff, dairy products, pharmaceuticals, food products, optical whiteners, ceramics, detergents, etc..\nThe choice of atomizer depends upon the properties of the feed and the dried product specification. In cases where more than one atomizer type is suitable, the rotary atomizer is generally preferred due to its greater flexibility and ease of operation and handling of high feed rates without need for atomizer identical arrangemnets handling of abrasive feeds, no blockage problems, low pressure feed system,ease of droplet size control through wheel speed adjustment,optimization of particle size of dried material", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": [ "+" ], "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 7, "imageuri": "https://productimages.withfloats.com/actual/58d73898b75ee00bd07f9409.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/58d73898b75ee00bd07f9409.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2017-03-26T03:42:17.009Z", "updatedon": "2018-08-08T18:46:24.881Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN/products/rotary-atomizer-/7", "availableunits": -1.0, "iscodavailable": true, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "UniquePaymentUrl", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5b6b3a804d9966054cd748b3", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Forced Circulation Systems:", "description": "Forced circulation Evaporator is used where boiling of the product is steering clear due to its bad foul characteristics. When the mixture flows through the heat exchanger it get partially vaporized because of the decrease in pressure. In this process powerful circulation pump forces the liquid through the help of tubes. The heat is picked by the shell side which carries steam. The height of the liquid is designed in a way thio stay away from the nucleate boiling inside the evaporator tube bundle. This type of equipment can be mounted vertically or horizontally according to the client’s need. Additionally they can also strengthen the solid substance into the liquid but before drying. They ensure moisture free complete process. But in this high power pump as well as high flowing velocity in the tubes are required. The efficiency of forced circulation evaporators is completely dependent on the heat temperature of the steam and the solution. Advanced Drying System. have a total quality management system that has the responsibility of matching the designs of our products to the international market standards. We integrate those forced circulation evaporator design to deliver the best quality service from our side.\nMeticulous Features Of Forced Circulation Evaporator:\nIdeal For Crystallization\nConcentrated Values\nSteam Economy\nMultiple Arrangements For High Performance\nHigh Capacity\nMinimum Consumption Of Energy\nApplications Of Forced Circulation Evaporator\nWaste Water Concentration\nConcentration Of Inorganic As Well As Organic Salt Solutions\nEvaporative Crystallization", "price": 0.0, "discountamount": 0.0, "currencycode": "INR", "priority": 1000000, "isfreeshipmentavailable": false, "shipmentduration": 7, "_keywords": [ "way", "thio", "type", "help", "shell", "Ideal", "tubes", "client", "liquid", "height", "mixture", "designs", "product", "decrease", "moisture", "pressure", "equipment", "Waste Water", "Steam Economy", "High Capacity", "Concentration", "heat exchanger", "responsibility", "high power pump", "solid substance", "nucleate boiling", "heat temperature", "High Performance", "Meticulous Features", "Minimum Consumption", "best quality service", "free complete process", "Multiple Arrangements", "high flowing velocity", "Organic Salt Solutions", "evaporator tube bundle", "Advanced Drying System.", "circulation evaporators", "total quality management", "bad foul characteristics", "powerful circulation pump", "Forced Circulation Systems", "Evaporative Crystallization", "circulation evaporator design", "international market standards", "-Forced circulation Evaporator" ], "isarchived": false, "isavailable": true, "applicationid": null, "productindex": 3, "imageuri": "https://productimages.withfloats.com/actual/58d28b5df52bee092cd34a9f.jpg", "tileimageuri": "https://productimages.withfloats.com/tile/58d28b5df52bee092cd34a9f.jpg", "images": null, "totalqueries": 0, "gpid": null, "groupproductid": null, "createdon": "2017-03-22T14:34:06.071Z", "updatedon": "2018-08-08T18:46:24.651Z", "buyonlinelink": null, "producturl": "http://WWW.SPRAYDRYERINDIA.IN//forced-circulation-systems-/3", "availableunits": -1.0, "iscodavailable": true, "isprepaidonlineavailable": false, "maxcodorders": 0, "maxprepaidonlineorders": 0, "uniquepaymenturl": null, "brandname": null, "category": null, "tags": null, "variants": false, "keyspecification": null, "otherspecifications": null, "pickupaddressreferenceid": null, "paymenttype": "UniquePaymentUrl", "producttype": "products", "hsncode": null, "gstslab": 0.0, "isnotforsale": false }, { "_id": "5b6b3a804d9966054cd748e7", "fptag": "SPRAYDRYERHYDERABAD", "merchantname": null, "customwidgets": null, "externalsourceid": null, "name": "Spray Dryer:", "description": "Spray drying is a method of producing a dry powder from a liquid or slurry by rapidly drying with a hot gas. This is the preferred method of drying of many thermally-sensitive materials such as foods and pharmaceuticals. A consistent particle size distribution is a reason for spray drying some industrial products such as catalysts. Air is the heated drying medium; however, if the liquid is a flammable solvent such as ethanol or the product is oxygen-sensitive then nitrogen is used.[1]\nAll spray dryers use some type of atomizer or spray nozzle to disperse the liquid or slurry into a controlled drop size spray. The most common of these are rotary disk and single-fluid high pressure swirl nozzles. Atomizer wheels are known to provide broader particle size distribution, but both methods allow for consistent distribution of particle size.[2] Alternatively, for some applications two-fluid or ultrasonic nozzles are used. Depending on the process needs, drop sizes from 10 to 500 µm can be achieved with the appropriate choices. The most common applications are in the 100 to 200 µm diameter range. The dry powder is often free-flowing.\nThe most common type of spray dryers are called single effect. There is a single source of drying air at the top of the chamber (see n°4 on the diagram). In most cases the air is blown in the same direction as the sprayed liquid (co-current). A fine powder is produced, but it can have poor flow and produce a lot of dust. To overcome the dust and poor flow of the powder, a new generation of spray dryers called multiple effect spray dryers have been produced. Instead of drying the liquid in one stage, drying is done through two steps: the first at the top (as per single effect) and the second with an integrated static bed at the bottom of the chamber. The bed provides a humid environment which causes smaller particles to clump, producing more uniform particle sizes, usually within the range of 100 to 300 µm. These powders are free-flowing due to the larger particle size.\nThe fine powders generated by the first stage drying can be recycled in continuous flow either at the top of the chamber (around the sprayed liquid) or at the bottom, inside the integrated fluidized bed. The drying of the powder can be finalized on an external vibrating fluidized bed.\nThe hot drying gas can be passed in as a co-current, same direction as sprayed liquid atomizer, or counter-current, where the hot air flows against the flow from the atomizer. With co-current flow, particles spend less time in the system and the particle separator (typically a cyclone device). With counter-current flow, particles spend more time in the system and is usually paired with a fluidized bed system. 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