Controlling water input to pulp washing system based on measurem

Details Controlling water input to pulp washing system based on measurem Controlling water input to pulp washing system based on measurem

1988-03-21

1989-09-26

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With testing, sampling or analyzing

162 50, 162 60, 162 61, 162DIG10, D21C 900

Patent

active

048697842

ABSTRACT:
Wash water input into a pulp washing system is controlled in response to measurements on a stream of output constituents of reduced transverse dimension compared to the transverse dimension of the washed pulp mat discharge stream from the pulp washing system. The measurements are conducted simultaneously across the entire width of the reduced dimension stream on all the washed pulp and water leaving the pulp washing system. The measurements are readily carried out using apparatus including means below said reduced dimension stream.

REFERENCES:
patent: 4046621 (1977-09-01), Sexton
patent: 4096028 (1978-06-01), Rosenberger
patent: 4207141 (1980-06-01), Seymour
patent: 4662991 (1987-05-01), Karna et al.
patent: 4735684 (1988-04-01), Seymour
Perkins, J. K., "Brown Stock Washing Using Rotary Filters", pp. 1-17, 19-23, 25-31, 33-37, 39-43, 45-51, 53-55, TAPPI PRESS (undated).
Sande, W. E. et al., Tappi Journal, Mar. 1988, pp. 93-97.
Tappi Journal, Feb. 1988, p. 199 and opposite side.

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