Method of discharging slurry by varying valve openings

Details Method of discharging slurry by varying valve openings Method of discharging slurry by varying valve openings

1979-03-16

1981-03-24

Scherbel, David A.

Dispensing

Processes of dispensing

13762415, 222 70, 222504, B67B 700

Patent

active

042575338

ABSTRACT:
A slurry containing polymer particles having an average particle diameter of 0.1 to 1 mm suspended therein is discharged smoothly from a discharge valve without valve clogging by operating the valve such that the degree of valve opening is set within a range II for a valve operating time t.sub.1 and within a range III for a valve operating time t.sub.2 ; the time t.sub.1 being from 5 to 60 seconds, the time t.sub.2 being from 1 to 10 seconds, the range II being a range of valve openings at which the valve is gradually clogged with the polymer particles discharged, and the range III being a range of valve openings at which the valve permits continuous discharge without clogging.

REFERENCES:
patent: 3061198 (1962-10-01), Kerr et al.
patent: 3444892 (1969-05-01), Doyle et al.
patent: 3476128 (1969-11-01), Barker
patent: 4098247 (1978-07-01), Konishi et al.

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