Methods and apparatus for the rapid consolidation of moist porou

Details Methods and apparatus for the rapid consolidation of moist porou Methods and apparatus for the rapid consolidation of moist porou

1980-06-10

1982-04-13

Smith, William F.

Paper making and fiber liberation

Processes and products

Non-uniform, irregular or configured web or sheet

162206, 162375, 100 38, 100 93RP, 34 41, 34124, D21F 502

Patent

active

043246133

ABSTRACT:
A moist, porous web is consolidated and dried by running it through the nip between two rotatable rolls, the surface of one of which is heated as it approaches the nip. One side of the web is in direct contact with the surface of the heated roll and the other side faces a permeable surface. The rolls are pressed together under high pressure to transfer heat from the heated roll to the web compressed therebetween to dry the same. The roll surface may be heated by hot gases from a fuel combustion burner or by a liquid medium. The dried and consolidated web may be removed from the heated roll by doctoring or it may be conveyed from the nip between the rolls to apparatus for processing it further.

REFERENCES:
patent: 3073038 (1963-01-01), Dapses
patent: 3178831 (1965-04-01), Howlett
patent: 3206869 (1965-09-01), Justos
patent: 3303576 (1967-02-01), Sissoon
patent: 3560333 (1971-02-01), Douglas et al.
patent: 3903961 (1975-09-01), Stanislaw
patent: 4146361 (1979-03-01), Cirruto

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