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Conveyor dryers Conveyors

Fig. 16. Single-stage pneumatic conveyor dryer using a venturi for material acceleration and gas—soflds mixing. Fig. 16. Single-stage pneumatic conveyor dryer using a venturi for material acceleration and gas—soflds mixing.
Screw-conveyor dryers. Although these dryers ore continuous, operotien under a vocuum is feosible. Solvent recovery with drying is passible... [Pg.1185]

FIG. 12-55 Section view of a continuous through-circulation conveyor dryer. (Vroctor [Pg.1197]

FIG. 12-57 Special conveyor dryer with air jets impinging on surface of bed on first pass. Dried material is crushed and passed again through dryer, with air going through the now-permeable bed. [Chem. Eng., 192 (June 19, 1967).]... [Pg.1199]

Vibrating-conveyor dryers are suitable for free-flowing solids containing mainly surface moisture. Retention is limited by conveying speeds which range from 0.02 to 0.12 m/s. Bed depth rarely exceeds 7 cm, although units are fabricated to carry 30- to 46-cm-deep beds these also employ plate and pipe coils suspended in the bed to provide additional heat-transfer area. Vibrating dryers are not suit le for fibrous materials which mat or for sticky sohds which may ball or adhere to the deck. [Pg.1224]

FIG, 12-93 Vibrating conveyor dryer. Caiiier Division, Rexnord Inc. )... [Pg.1225]

Pneumatic-Conveyor Dryers A pneumatic-conveyor dryer consists of a long tube or duct carrying a gas at high velocity, a fan to propel the gas, a suitable feeder for addition and dispersion of particulate solids in the gas stream, and a cyclone collector or other separation equipment for final recoveiy of sohds from the gas. [Pg.1225]

FIG. 12-94 Two -stage air-stream and cage miU, pneumatic-conveyor dryer. (ABB Raymond. )... [Pg.1226]

FIG. 12-95a Air-lift pneumatic-conveyor dryer includes partial recycle of dry product and expanding tube and cone sections to provide longer holdup for coarse particles. (Bepex Coip. )... [Pg.1226]

TABLE 12-34 Typical Products Dried in Pneumatic-Conveyor Dryers ... [Pg.1228]

Dust explosions usually occur in two stages a primary explosion which disturbs deposited dust followed by the second, severe, explosion of the dust thrown into the atmosphere. Any finely divided combustible solid is a potential explosion hazard. Particular care must be taken in the design of dryers, conveyors, cyclones, and storage hoppers for polymers and other combustible products or intermediates. The extensive literature on the hazard and control of dust explosions should be consulted before designing powder handling systems Field (1982), Cross and Farrer (1982), Barton (2001), and Eckhoff (2003). [Pg.366]

Conveyor dryers (continuous circulation band dryers) (Figure 10.26)... [Pg.430]

Belt conveyor dryers yeast, charcoal briquettes, synthetic rubber, catalysts, soap, glue, silica gel, titanium dioxide, urea formaldehyde, clays, white lead, chrome yellow, and metallic stearates... [Pg.245]

Pneumatic conveyor dryers yeast filter cake, starch, whey, sewage sludge, gypsum, fruit pulp, copper sulfate, clay, chrome green, synthetic casein, and potassium sulfate... [Pg.245]

Figure 9.8. Rotary tray, through-circulation belt conveyor, and heated screw conveyor dryers, (a) Rotary tray dryer (Wyssmont Co.), (b) Action of a rotating tray and wiper assembly (Wyssmont Co.), (c) A single conveyor belt with air upflow in wet zone and downflow in dry (Proctor and Schwartz Inc.), (d) A two-stage straight-through belt conveyor dryer, (e) A three-belt conveyor dryer as the material becomes dryer, the loading becomes deeper and the belt longer (Proctor and Schwartz Inc.), (f) Screw conveyor dryer with heated hollow screw (Bepex Corp.). Figure 9.8. Rotary tray, through-circulation belt conveyor, and heated screw conveyor dryers, (a) Rotary tray dryer (Wyssmont Co.), (b) Action of a rotating tray and wiper assembly (Wyssmont Co.), (c) A single conveyor belt with air upflow in wet zone and downflow in dry (Proctor and Schwartz Inc.), (d) A two-stage straight-through belt conveyor dryer, (e) A three-belt conveyor dryer as the material becomes dryer, the loading becomes deeper and the belt longer (Proctor and Schwartz Inc.), (f) Screw conveyor dryer with heated hollow screw (Bepex Corp.).
TABLE 9.9. Performance of Through-Circulation Belt Conveyor Dryers [See Figs. 9.8(c)-(e)]... [Pg.253]

Pneumatic Conveyor Dryers. Material is moved in a stream of gas ul high-velocity and high temperature and finally collected by a cyclone separator... [Pg.509]

Scren-conveyor Dryers. A conveyor is housed within a closed, heated housing. This operation may proceed at atmospheric pressure or under vacuum. [Pg.509]

Fig. 6, A multi-tier, multi-pass conveyor dryer. Due to space limitations il is sometimes necessary to tier dryer, and use gravity or transfer conveyors to carry the product from one tier to the other. The location of the discharge end will vary with the number of tiers. (The National Drying Machinery Company)... Fig. 6, A multi-tier, multi-pass conveyor dryer. Due to space limitations il is sometimes necessary to tier dryer, and use gravity or transfer conveyors to carry the product from one tier to the other. The location of the discharge end will vary with the number of tiers. (The National Drying Machinery Company)...
See other pages where Conveyor dryers Conveyors is mentioned: [Pg.383]    [Pg.389]    [Pg.20]    [Pg.383]    [Pg.237]    [Pg.247]    [Pg.248]    [Pg.254]    [Pg.255]    [Pg.256]    [Pg.1150]    [Pg.1150]    [Pg.1197]    [Pg.1224]    [Pg.1226]    [Pg.1228]    [Pg.430]    [Pg.951]    [Pg.510]    [Pg.510]    [Pg.383]    [Pg.389]    [Pg.655]    [Pg.973]    [Pg.973]    [Pg.1020]   
See also in sourсe #XX -- [ Pg.479 ]



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