Spray Drying Systems Brochure

1 Spray Drying Systems , Inc. (SDS),providesexpert technology for all Spray Drying process engineers at SDS have theexperienceit takes for the successful operationof your new Spray wide ranges of applicationsinclude industrial chemicals,flavorings, ceramics, pigments, dyestuffs, deter-gents, catalysts, salts, and extracts. Experiencedelectrical, mechanical, and civil engineers teamwith experienced detail designers to ensure yourgoals and requirements are met. SDS also hasfull engineering and programming capabilityfor advanced automated goal is to provide the best Spray Drying technology for our customer's application atcompetitive laboratoryand pilotspray dryers areavailable, as well as custom designs for unique research Spray dryers can be used for Spray coolingof process gasses.

2 The gas is cooled by evapora-tive cooling and the dryer exhausts a dry, cooledgas that can be processed in other units, such as fabric filters. SDS Spray dryers are also usedin Drying ofwaste streamsto eliminateliquid o f f e r superior technical servicefor all existing Spray dryer installations for owners who desire improved performanceof their system , such as increased production rates ,less wall buildup, and improved quality also offers a pressure nozzlefor use in Spray dryers for those interested in lower Drying Systems , Spray Dryers Spray Coolers Pilot Spray Dryers Pressure Nozzles for Spray DryersSERVICES FOR EXISTING Spray DRYERS Engineering and Equipment for Modifications Technical Service Automated Control system UpgradesCover photos:(large photo) This co-current,parallel flow Spray dr yer produces a 300 micron averageparticle size with no demonstrates the superiorability of SDS.

3 (inset photo) A 20 foot diameterspray cooler handles 1600 F flue gases from three separatefurnaces to allow fly ash recovery with a bag unit replaced a refractor ylined dilution air cooling unit. Superior Technology and Service Competitive Pricing Shortest Delivery Schedules Full Range of Spray Dryer Applications,Sizes, and DesignsWHERE YOUR INVESTMENT HAS THE HIGHEST VALUED esigning dryers to fit into existingstructures is a challenge that SDSengineers Spray dryerwas designed for a ceramic can be set up for co-current or mixed flow Choose SprayDrying Systems , TECHNICAL COMPETENCE IS have more than 60 years of combinedprocess experience in the design of spraydrying Systems for all industries.

4 Ourstrong background in fundamentalchemical engineering principles is thebackbone of our system Systems ARE OF LOWER INSTALLED engineering is performed byexperts in the design, use, and operationof the process equipment, which equatesto better mechanical design and fasterinstallation. Our staff includes experiencedengineers of all required disciplines thatinteract as a team to ensure costs are controlled and installation is a UNDERSTANDING OFPARTICLE SIZE CONTROL IS THE design capability for the control ofparticle size in nozzle or rotary type spraydryers has been demonstrated to be thebest in the world.

5 The gas inlet design will be specific to the application to insure the best particle size distribution with minimal or no wall OFFER SUPERIOR TECHNICAL process engineers are available to help you make your existing dryer system operate better. We offer the help you need when you need YOU HAVE QUESTIONS,WE GET YOU THE ANSWERS it is during the proposal, the con-tract execution, or post plant start-up, thestaff at SDS is here to CAPABILITY SPANSALL SIZES OF Spray staff has designed Spray Drying sys-tems with airflows from 200 to 250,000 ACFM, feed rates from GPH to 200 GPM, dryer diameters from 2 to 43 feet,and inlet gas temperatures from 50 F to2400 DESIGN TOYOUR do not sell you standard models thatmayfit your application.

6 We design the system to your specific INCORPORATE ENERGY has experience with partial outlet gasrecycle to conserve energ y and reduce thecost of environmental equipment. We haveused waste heat streams to further recoupenergy, and we have designed packed column hot water generators to be usedon the tail end of the system to squeezemore energy savings from tight operating HAVE EXPERIENCE WITH ALL TYPES OF offers closed loop designs with solventcondensation to contain the solvent andcontrol the Drying ARE EXPERT IN THEDESIGN AND APPLICATION OFFLUE GAS Spray COOLERS ANDFLUE GAS ACID RECOVERY Spray cooler designs have proven tooperate "dry.

7 " unlike our competition' know-how of Spray Drying fundamen-tals gives us this OFFER EXCEPTIONALABILITY TO MODIFY OR RETROFITEXISTING have successfully modified competi-tor's dryers which resulted in increasedproduction, improved particle size controland elimination of wall HAVE EXPERTISE IN THEDESIGN AND APPLICATION OFPOWDER COLLECTION ANDEMISSION CONTROL staff has experience in the design andapplication of all types of emission controlequipment used downstream of spraydrying Systems ; from bag filters andcyclones to wet scrubbers and packed DRYER,as the name implies, is adevice for Drying , utilizing a Spray .

8 Spraydrying entails intimate mixing of a heatedgas with an atomized (sprayed) liquidstream within a vessel ( Drying chamber) toaccomplish evaporation through a directcontact, adiabatic unit operation ofSPRAY Drying includes the following key components: A method forATOMIZINGa solution orslurry An air/gasHEATER,or a source of hot air such as a waste flue gas A gas/sprayMIXING CHAMBER withadequate residence time and droplettrajectory distance for achieving the heat and mass transfer A means forRECOVERINGthe solidsfrom the gas stream AFANto induce the required air/gasflow through the systemBECAUSE SURFACE AREAPRODUCEDThe unique feature of a Spray dryer is thesurface area per unit weight generated byatomization of the liquid feed.

9 It is this factthat enables a Spray dryer to work. Forexample, feed atomized to 100 micron aver-age droplet size generates approximately15,400 ft2/lb of surface area. The same feedatomized to an average of 20 micron gener-ates approximately 77,021 ft2/lb! This is likespreading one gallon of feed over 14 foot-ball fields! This generation of surface area iswhy the Spray dryer can claim many of thefollowing PARTICLESIZE CONTROLThe dry particle size can be easily con-trolled by atomization of the liquid and the design of the hot gas inlet. The correctdryer design and atomization techniqueWhy Select aSpray Dryer?

10 This dryer designed dryer for centrifugal atomization awaits installation at the plant always plans ease of installation into it's design. This adds to the overall project savings, a major consideration when selectingyour Spray Drying system is a Spray Dryer?can eliminate the need for sizing/classifica-tion equipment when the product averageparticle size is less than 500 microns. "Non-dusting" powders can be made which is beneficial for hazardous products, animalfeeds, dyes, and other EVAPORATIVE COOLINGOF THE PRODUCTThe heat and mass transfer during dryingoccurs in the air and vapor films surround-ing the droplet.