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Littleford Day Inc. Where Processing Ideas become Reality. FKM-KM-DVT Mixers / Dryers / Reactors Batch & Continuous Operation. Littleford Day Inc. Where Processing Ideas Become Reality. Littleford FKM / KM / DVT Mixers, Dryers & Reactors Presentation Index.
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Littleford Day Inc. Where Processing Ideas become Reality.
FKM-KM-DVT Mixers / Dryers / Reactors Batch & Continuous Operation Littleford Day Inc. Where Processing Ideas Become Reality.
Littleford FKM / KM / DVT Mixers, Dryers & Reactors Presentation Index Page Contents 4 FKM / KM / DVT Mixers, Dryers & Reactors: Tasks & Applications. 5 The Littleford Advantages 6 The “Fluidized-Bed” Concept for Mixing and Drying. 7 Chopper action on a dispersion process. 8 Manufacturing Options. 9 How do we build them. 10 KM Units for Continuous Operations: Special Features. 11 DVT Reactors: Special Features & Main Applications 12 Drying in the Littleford 13 The Chopper advantages when drying. 14 Liquids Dispersion Systems. 15 Granulating with the Littleford. 16 Wet Granulation. 17 Batch Operation : FKM Regular Sizes. 18 Continuous Operation: KM Regular Sizes. 19 Pressurized Operation: DVT Regular Sizes. 20 Service and Spare Parts. 21 Rental Programs. 22 Technical Center: Our Process Developing and Testing Facilities.
APPLICATIONS Animal Feeds Pharmaceuticals Pigments Ceramics Chemicals Glass Insecticides Foundry Additives Fertilizer / Seeds Cosmetics Food Additives Friction Lining Soap / Detergents Adhesives Nuisance Dust Rubber Heavy Pastes Plastics Flammable Sludges Coal / Ores Metals Gums Foods TYPE OPERATION VESSEL TASKS FKM Batch Atmospheric High-Quality Mixings or Vacuum Liquid Dispersions. Powder Coatings. Lumps Breaking KM Continuous AtmosphericVacuum Drying. Granulation. DVT Batch InternalALL THE ABOVE + Pressure & Chemical Reactions. High Vacuum FKM / KM / DVT Mixers - Dryers - Reactors Littleford Day Inc. Where Processing Ideas Become Reality.
The Littleford Advantages: Littleford Ribbon Tumbling P. Kelly Nauta Sigma Process FKM / DVT Blender Mixers Types Types Units Littleford Day Inc. Where Processing Ideas Become Reality. X X X Accurate mixing of different density components. Yes Poor X Complete dispersion of liquids with dry powders. Poor Poor Partial Partial X X X Lump breaking, for control of particles sizes. Poor Partial X X X X X Fluidized-Bed particle movement for higher heat transfer. X X X X X Extremely fast Batch Times of 2-4 Minutes on dry powders. X X X Continuous deagglomeration for more efficient drying. Poor Partial
The unique action created by the movement of the mixing elements produce intense but gentle intermingling of the materials of the mix in a mechanically fluidized bed. Liquid dispersion is done by spraying liquids against fluidized powder, by Top and / or Bottom Mounted Nozzles. Mixing elements are designed to force the product into appro- priate components of axial & radial motion. High-Speed Blending Choppers enhance mixing action by controlling particle size and trace ingredient dispersion, usually without the need for additional process steps. The “Fluidized Bed” Operation for Mixing & Drying: The unique mixing action of the FKM series mixers is accomplished by a horizontal shaft which revolves at a high rate of speed rapidly projecting and hurling the mix materials away from the vessel wall into free space, filling the entire vessel. The mixing action causes the materials to crisscross in the direction of the vessel walls and inversely back again, providing a high volume rate of material transfer. The mechanically fluidized bed of particles is the basis of it´s mixing efficiency and accuracy, including mixtures with diverse specific gravities as well as other problems such as liquid incorporation and heat transfer.
Chopper Action, sending fluidized particles upward, against sprayed liquids flowing in the opposite direction. Superb Liquids Dispersion into Powders, through high speed Choppers (Showing Top Injection Type. Bottom Liquids Injection also available)
Manufacturing Options: Vacuum System: Stack (s) Pulse Back Filter (s) Condenser, Receivers. Vacuum Pumps. Material: C.Steel, 304 S.S., 316 SS., Special. Interior: Std. #120 Grit or higher. Liquid Injection: Tower, Manifold. Top and / or Bottom Mountings. Vessel Construction: Atmospheric Std., Vacuum Rated, Pressure Rated, Sanitary Construction. FDA Ratings. Electric's: H.P., TEFC,Expl.Proof. Feeding Ports Drive Type. Sanitary or Welded Design RPM´s: 1 or 2 Speeds, Variable Speed. Hydraulic Coupling. Seals: Std. Packing, Positive Pressure Mechanical. Plows: Std.,Heat Transfer, Becker Jacket. Std. 75 PSI Other PSI Ratings Heating & Cooling Special Bases, Load Cells. Choppers: H.P., TEFC, Expl.Proof Blade Types Discharge Valve : Manual,Pneumatic. Ball type, Butterfly, Spherical & Slide Options. Control Panels: Manual, Automatic. RPM Control Batch Times, Amp,Power,Reports
Standard or Sanitary Construction. TEFC or Explosion Proof Electric's. Full Vacuum or rated for several Internal Pressure Ratings. Single or Variable Speeds. Vacuum Systems Liquid Dispersion Systems. Shell in Carbon Steel 304 SS or 316 SS #120 Grit finish. Access ports with safety limit switches. Reinforced Shafts and Drives. Std.Packing, Air type & Mechanical Seals Jacket designed for high rates of thermal transference. 75 PSIG Littleford High Speed Choppers, for granulation control, lump breaking & dispersion Mixing Plows designed to create a fluidized bed and excellent thermal transfer. Contour discharge Valve, for No-Dead Spots How do we build them: Pulse Back Filters.
Liquid-Addition Nozzles Plows Set Configurations have different arrangements which can be modified, to change retention times. Charging Inlet Level-Adjustable Discharge Gate, for material level control. Littleford Drives designed for several applications and fill levels. Several Plow types, designed for mixing, drying or agglomerating operations. KM Units, for continuous operations: Commonly used in applications requiring large outputs of mixed, dried and/or reacted materials. Special Features of the KM Continuous mixers: Littleford Day Inc. Where Processing Ideas Become Reality.
Typical Applications: Chemical Reactions. Of the solid phase classification including metal stearates; metal alkoxides; pharmaceutical inter- mediates, pesticides derivatives, dye and pigment intermediates including anthraquinone, di-azo and phthalocyanine; cellulose ethers; dry chlorination of aromatics; chemical modification of polymers & chemical encapsulation of pesticides & herbicides. Biopolymer Modification Cellulose Sulfidation for film & fiber production, guar protein,cellulose ethers, starch & Biomass conversion. Drying of Solid Phase Concentration Reduced pressure or Vacuum Type, particularly those products exhibiting thermal sensitivity such as drying of foods and pharmaceuticals. Solvent Recovery Characterized by recovery of chlorinated organics, ketones, aromatics and aliphatics. Extraction of Biopolymers Including proteins, carrageenan & natural gums. Sterilization of Foods & Pharmaceuticals By chemical and thermal treatment. Physical Reaction Such as required in Mfrg. Of catalyst materials. Food Preparation Physical reaction to formulate synthetic food products such as cheeses, texturized proteins, etc. DVT Reactors: Polyphase Systems PRODUCT FEATURES: Vessel Connections: From Process Needs. Injection Nozzles:Addition of Vapors/ Liquids ASME Code Construction. Provision for field or site insulation. Optional Construction Materials Specialty Alloys, Clad or Solid and S.S. heat transfer Jacket. Special Alloys. Internal Finishes. Wall Scrapers. Sanitary Design U.S.D.A, FDA & 3A Specs. Vapor Dome: Various designs for diverse vapor streams with provisions for particle/dust removal, mist elimination. Set for reflux condenser. Feed and Discharge Connections: Contoured design to avoid dead zones. Shaft: As option, to accommodate flow of heat transfer medium, to avoid sticking.
Dry Product Drying in The Littleford. 1.-High efficiency drying of Suspensions, pastes, and bulk materials. 2.-Fast drying cycles and discharge. 3.-Allows efficient drying of sensitive materials at low Temperatures. 4.-Complete dispersion of agglomerates, lumps and fiber bundles. 5.-Homogeneous mixing of dissimilar ingredients. 6.-Drying operations from liquid state to free-flowing powder in one vessel. 7.-Allows liquid addition during processing. 8.-Adapts itself to effective recovery of costly solvents. 9.-Eliminates need for additional processing equipment. The Key to this State-of-the Art drying technology is the unique, mechanically fluidized ploughshare ction which agitates and individualize the solid particles to be dried. The ploughshare action forces the product into a 3-dimensions motion that individualizes each particle, continuously exposing tremendous surface area for drying. The particles constantly contact one another, and the heated interior walls of the jacketed vessel furthering the drying process. Our dryers are also equipped with independently operated, high shear choppers, to reduce the particle size of the lumps or agglomerates, to expose undried materials and ensure thoroughly dried particle interior. Deagglomeration further shortens drying time. Heated Pulse Back Filter with Stack. Wet Product Condenser Littleford Dryer. Recovery Tank. Vacuum Pump.
PASTE GRANULE POWDER M O I S T U R E Internal Drying without Choppers External Drying with Choppers DRYING TIME Advance Drying The Chopper Advantages in Drying: Fast, efficient drying without lump formation The action of the turbulent plows and the high shear choppers reduce the forming lumps to smaller granules, thus exposing large amounts of new surface area for drying.
Air Flow Control Vent Filter Bag Nozzle Heated Storage Tank Electrically heated & Insulated Fluid Line Heated Air Lines Line Strainer Heat Exchanger Steam Trap Pump & Flow Gage Air Source Liquids Dispersion Systems: Improved wetting characteristics. Minimization of Liquids usage. Complete uniformity of dispersion. Increased Productivity. Any application requiring high-quality dispersion of liquids into powders .
Granulation Validation Cycle Time vs. Power (Watts) Stop Liquid Addition P o Large Granules Medium Granules Small Granules w e r D e m a n d Start Dry Mix Cycle Time Start Liquid Addition Granulating The FKM Advantage Littleford mixers/granulators, equipped with plow-like mixing tools, develop an intermediate intensity mix action, which is gentle, yet thorough. This action is supplemented by high shear choppers, which quickly disperse minor liquid, or powder ingredients. In a typical run, the excipient and the powdered active ingredient are charged to the static granulator and mixed, with choppers, for several minutes, until the power curve levels off, indicating that dispersion is complete. Then the agglomerating liquids are sprayed into the active chopper field, where they are quickly dispersed into the batch. The degree of granulation, and thus the amount of power utilized, is dependent upon the amount of liquid added to the batch, so as of the wet mix batch time. The action of the curved-sided plows guarantees more spherical granules, and the choppers action controls particle size distribution.
Granulation Cycle: 2 to 5 Minutes. Reduction in Granulating Solution. Less Drying Time, due to the above. Excellent Granules Flow Properties. Mixing and Granulating in the same Vessel: 10 Min. for Both Operations. Wet Granulation Littleford Advanced Solutions The various ingredients are weighted and fed to the Littleford Mixer / Granulator, by hand or vacuum- feed systems. Pre-Milling to eliminate lumps that may have formed in storage is not required, as the“choppers” deagglomerate these during the cycle. Complete uniformity of mix is usually attained in about One Minute. Most pharmaceutical companies mix an additional 2 minutes to complete deagglomeration and dispersion of dry colors Following the dry mix cycle, the gra- nulation solution is fed to the mixer through 1/2” liquid injectors mounted over high speed blending choppers Spray nozzles are not always required as the choppers quickly disperse the liquids. Due to the de- gree of dispersion attained, a reduc- tion in the amount of granulation solution is usually possible, if compared to low-shear systems. 10 to 20% in starch paste reduction is typical. Even greater reductions are attained with alcohol granulations. Liquid reduction great- ly enhances drying times. The introduction & dispersion of the granulating solution depends on the batch size. Usually requires 2-3 Minutes. When granulation is done, it is clearly reflec- ted in the Drive Current. Cycle is instrumentated for accurate reproduci- bility. Following the distribution of the granulating solution, the action of the choppers change from disper- sion to agglomerate control. Over sized agglomerates are constantly broken up and reformed into fairly uniform spheres. The size is based on cycle length Discharge consists of spheres. Over 90% yield ready for shelf or fluidized bed drying without wet screening.
TOTAL CAPACITY DIMENSIONS * Model Liters Gallons Cu.Ft. A B C FKM-300-D 300 79 11 39” 28” 35” FKM-600-D 600 159 22 49” 34” 43” FKM-1200-D 1200 317 42 98” 34” 43” FKM-1200-E 1200 317 42 67” 42” 50” FKM-2000-D 2000 530 71 117” 42” 51” FKM-2000-E 2000 530 71 79” 50” 60” FKM-3000-D 3000 792 106 117” 50” 60” FKM-4200-D 4200 1109 148 136” 54” 68” FKM-6000-D 6000 1584 212 117” 68” 80” FKM-8000-D 8000 2113 283 157” 68” 80” FKM-10000-D 10000 2642 353 198” 68” 80” FKM-13500-D 13500 3555 495 198” 79” 92” FKM-15000-D 15000 3960 530 198” 85” 96” FKM-20000-D 20000 5284 706 198” 95” 107” FKM-25000-D 25000 6605 883 234” 99” 110” C B A Littleford Day Inc. * Aprox. Vessel Dimensions Batch Operation: FKM regular sizes: Working capacity depends on the process, and is normally between 50% and 70% of total capacity.
TOTAL CAPACITY DIMENSIONS * Model Liters Gallons Cu.Ft. A B C KM-300-D 300 79 11 65” 24” 29” KM-600-D 600 159 22 92” 28” 35” KM-1200-D 1200 317 42 114” 34” 42” KM-2000-D 2000 530 71 134” 42” 50” KM-3000-D 3000 792 106 137” 50” 59” KM-4200-D 4200 1109 148 159” 54” 66” KM-6000-D 6000 1584 212 177” 68” 80” KM-8000-D 8000 2113 283 190” 68” 80” KM-10000-D 10000 2642 353 224” 68” 80” KM-13500-D 13500 3555 495 224” 82” 91” KM-15000-D 15000 3960 530 224” 93” 96” KM-20000-D 20000 5284 706 224” 97” 105” KM-25000-D 25000 6605 883 260” 99” 109” C B A Littleford Day Inc. * Aprox. Vessel Dimensions Continuous Operation, KM regular sizes: Working capacity depends on the process, and is normally between 30% and 70% of total capacity.
TOTAL CAPACITY DIMENSIONS * Model Liters Gallons Cu.Ft. A B C DVT-50 ° 50 13 1.7 60” 70” 40” DVT-130 ° 130 35 4.6 72” 90” 40” DVT-300 300 79 11 78” 48” 49” DVT-800 800 211 28 100” 50” 53” DVT-1250 1250 330 44 120” 59” 60” DVT-2000 2000 528 71 132” 66” 68” DVT-3000 3000 793 106 148” 71” 71” DVT-4000 4000 1057 141 180” 74” 73” DVT-6300 6300 1664 226 220” 78” 87” DVT-8000 8000 2113 283 226” 84” 89” DVT-10000 10000 2642 353 230” 92” 92” DVT-15000 15000 3965 530 267” 103” 115” DVT-20000 20000 5284 706 296” 107” 117” DVT-25000 25000 6605 883 300” 116” 123” C B A Littleford Day Inc. * Aprox. Vessel Dimensions Pressurized Vessels: DVT regular sizes: Working capacity depends on the process, and is normally between 50% and 70% of total capacity. ° Lab. Models
Exclusive Dept. for customer assistance. Laboratory for formulations & optimization. Specialized Field Service Engineers. Stock of common required parts. Top American Mfrd. Parts: SKF, Falk, Chesterton, etc.,etc. Assistance in Spanish, if required. Service & Spare Parts Littleford Day Inc. Where Processing Ideas Become Reality. The Best Service Department. Direct Sales Force. No Reps. Own Manufacturing Facilities.
Batch Mixing / Processing Ploughshare Units, both for atmospheric / vacuum and Pressure Ops. : From Table-Top 5 & 20 Lts units to Pilot 130 Lts. Machines Larger sizes are available. W-10 High - Intensity vertical mixer, for PVC Compounding and /or other applications re- quiring High-Shear Op. Ten Liters Capacity. Daymax # 10 Dispersers, for high quality dispersions of solids into liquids, such as plastisol, varnish, paint, and other applications. FA-3.5 Mixer, Nauta-Type, for special mixing / drying requirements. 24.6 Gallons Working Capacity. Rental Programs In addition to our Process Development & Testing Programs, our Rental Program offers a unique opportunity to test our processing equipment in your own Plant. A portion of the rental cost, under this program, will be applied to the purchase of any related Littleford Day Equipment.
To Cincinnati I-75 I-275 Donaldson Rd. Turfway Rd. U.S. 42 Greater Cincinnati Airport Industrial Road (1 Mi) Exit 180 Florence Union (1/2 Mi) 7451 Empire Drive Florence, KY. 41042-2985 To Lexington Process Development & Testing Main Office: Florence, KY. Ph.- (606) 525-7600. Fax: 525-1446 Latin America: Mexico Cy.Ph.- (52-5)550-9459. Fax: 550-9459 Minutes away from Greater Cincinnati Airport, Our Lab. Center is fully equipped with all the required machinery for product development: Mixers, Dryers, Reactors, Granulators, Intensive Mixers-Coolers and support equipment such as filtering and vacuum drying systems. Cosmetics Detergents & Soaps Foundry Additives Pharmaceutical Ceramics Fertilizers/Seeds Rubber Mortar Mixes Brake Linings Powdered Metals Herbicides Flame Retardant Chemicals Pigments & Color Flushing BMC & SMC Plastics. Color Concentrates PVC Compounding Coatings Plastisols Adhesives & Caulks Inks & Varnish ChemicalReactions & Drying Cellulose Reactions Spices Chocolate processing Gelatin & Powdered drinks Bakery Mixes Instantanization Technical Center Main Equipment: FM-130 Mixer/Processor Ploughshare DVT-130 Polyphase Reactor KM-150 Continuous Mixer/Processor M-5 Lab. Mixer & Dryer W-180/K-300 PVC Compounder W-10 High Intensity Mixer Daymax 10 Pastes Disperser Daymax 100 Pastes Disperser Mixtruder Sigma Double-Arm Mixer Mogul Tangential Sigma Mixer Cincinnatus Overlapping Sigma Mixer FA-10 Nauta Processor Bring Us Your Toughest Mixing, Drying & Reacting Problems.