APV Dryer Handbook - Umbc

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D R Y E R T E R M S FEED DEFINITIONS Solution: Solids fully dissolved Slurry: Suspended or dispersed Thixotropic: Thins with shear Dilatent: Thickens with shear Cohesive Paste: Just plain sticky Friable Cake: Dry to touch, breaks up Granules: Very coarse powder DRIED PRODUCT CHARACTERISTICS Fine: Typically pigment powders, fillers, talcum powder Free Flowing: Usually over 50 microns, press filling applications Dustless: Dyes, bulk handling, Kaolin – still free flowing Granular: Coarser and less free flowing Wettable: For easy mixing into water – agro chemicals, dyes Agglomertated: Easiest mixing and dissolving – infant formula, creamer Coated: Time release, lecithinated, flavored Lump: Rabbit food, cattle feed, Kaolin POWDER PROPERTIES Hygroscopic: Flavors, salts, sugars, HVP Hydrophobic: Fats, polymers, coated inorganics Thermoplastic: Lignin, PVA resins, sugars, fats Heat Sensitive: Protein, pigments, iron oxide, crystals Inert: Mineral, oxides, Kaolin, waste 7
Page 1: Improving Process Profitability...C
Page 5: I N T R O D U C T I O N The drying
Page 9 and 10: the film drum dryer, units in which
Page 11 and 12: OUTPUT (LBS/24HRS) 8000 6000 4000 2
Page 13 and 14: of thermal energy increases the vap
Page 15 and 16: As seen in Figure 6, there are a nu
Page 17 and 18: AIR INLET A FEED PRODUCT NOZZLE ATO
Page 19 and 20: DIRECT FIRING PARALLEL FLOW COUNTER
Page 21 and 22: nest. Figure 9 shows a fixed-tube r
Page 23 and 24: eflected in the range of variation
Page 25 and 26: of conveyor necessary to support th
Page 27 and 28: The pulsation rate is determined by
Page 29 and 30: ■ From a knowledge of the product
Page 31 and 32: ■ Utilizing direct heat wherever
Page 33 and 34: a gas stream, which reduces the the
Page 35 and 36: would produce the product at the fi
Page 37 and 38: F L U I D B E D Most powder-like pr
Page 39 and 40: THE AGGLOMERATION MECHANISM Two par
Page 41 and 42: eduction in liquid rate will result
Page 43 and 44: angles and nozzle position patterns
Page 45 and 46: FOR FOOD PRODUCTS FOR CHEMICAL PROD
Page 47 and 48: The Spray Bed dryer is a highly spe
Page 49 and 50: POUNDS WATER PER POUND DRY PRODUCT
Page 51 and 52: fluid bed and are kept in DRYER CHA
Page 53 and 54: 1 3 2 6 8 9 Capacity can be adjuste
Page 55 and 56: “Free” Steam In addition, there
Page 57 and 58:
a free flowing spherical particle o
Page 59 and 60:
BOTTOM PLATE SWIRL CHAMBER ORIFICE
Page 61 and 62:
FLOW RATE The flow rate of liquid i
Page 63 and 64:
HYDRAULIC CAPACITY The wheel speed
Page 65 and 66:
THERMAL DEGRADATION Although the ma
Page 67 and 68:
temperature will NOT be reduced. Th
Page 69 and 70:
If deposits of powder on the cone o
Page 71 and 72:
coat the metallic part of the seal
Page 73 and 74:
THROAT ADJUSTMENT The width of the
Page 75 and 76:
pressure pump plungers. If the puls
Page 77:
CYCLONE LOSSES When the cyclone is
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APV Dryer Handbook - Umbc

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