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Through dryer

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]

Sheering Dryers. Material in sheet form passes continuously through a hot chamber. Depending upon product, sheet may be taut (as pinned to a frame), or it may pass through dryer in festoon manner. [Pg.509]

As the machine speed has continuously has increased the dynamic forces to the web have increased and it has forced to support the web with felts to avoid web breaks. Before 30 s typically the web had open draw between press and wire section which was soon replaced with pick-up suction roll arrangement. In this arrangement web is picked up with a suction roll from wire and supported by press felt to the first nip. Most recent fast paper machines are using the same principle of suction roll and supporting fabric not only through press but also through dryer section. [Pg.1207]

Examples of convective (direct) dryers are air suspension dryers, such as fluid bed, flash, rotary, or spray dryers air impingement dryers for paper or pulp packed bed or through dryers and conveyor-truck-tunnel dryers. [Pg.20]

The types of dryers used in the paper industry can be classified by the basic means of transferring heat to the paper. For conventional steam-heated cylinders, the predominant mechanism of heat transfer is conduction convection is for air dryers, such as impingement and through-dryers radiation is used for infrared dryers and dielectric heating is used for microwave and radio frequency (RF) dryers. On the other hand, some of the dryers use more than one means of heat transfer, for example, Yankee dryers are a combination of cylinder and impingement dryers. [Pg.774]

Recently published experimental data [42,43] and calculations [44] suggest that strategically placed through-dryers may even be used for higher basis weight, lower air permeability grades to improve drying rates. This process basically... [Pg.783]

Set dryer air conditions and measure air inlet temperature Run heavy gauge polyester web through dryer... [Pg.392]

Through dryer Impingement dryer Through dryer Drying of tissue... [Pg.9]

Continuous sheets (coated paper, paper, textiles) Multicylinder contact dryers Impingement (air) Combined impingement/radiation dryers Combined impingement and through dryers (textiles, low basis weight paper) Impingement and microwave or radio-frequency... [Pg.14]

Combined impingement and through dryers (textiles, low basis weight paper)... [Pg.48]

Cylinder dryer Impingement dryer Yankee dryer Infrared dryer Through-dryer... [Pg.814]

See other pages where Through dryer is mentioned: [Pg.311]    [Pg.165]    [Pg.311]    [Pg.1011]    [Pg.1445]    [Pg.1411]    [Pg.1411]    [Pg.90]    [Pg.90]    [Pg.1711]    [Pg.311]    [Pg.768]    [Pg.1410]    [Pg.1410]    [Pg.1192]    [Pg.90]    [Pg.90]    [Pg.26]    [Pg.428]    [Pg.471]    [Pg.769]    [Pg.775]    [Pg.782]    [Pg.782]    [Pg.783]    [Pg.784]    [Pg.86]    [Pg.564]    [Pg.466]    [Pg.518]    [Pg.807]    [Pg.823]    [Pg.824]    [Pg.824]   
See also in sourсe #XX -- [ Pg.9 ]



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