Liquid purification or separation – Processes – Separating
Patent
1988-08-01
1989-09-26
Jones, W. Gary
Liquid purification or separation
Processes
Separating
210143, 210225, 210227, 210387, 210396, 210DIG3, 100196, B01D 2500, B01D 2512, B01D 2532
Patent
active
048698342
ABSTRACT:
To ensure that a web (11) of filter material is properly passed between filter plates (25) of a filter stack (23), without skewing, which might cause leakage along the edges of the filter plates, the web is guided to the filter plates by guide rollers and, after being received from the stack of plates, passed over an inclined deflection edge (13) on a deflection element or rod, located at an angle of 45.degree. with respect to the edge of the essentially rectangular plates, so that the run-on and run-off surfaces of the web will form a web deflection angle (.alpha.) of about 90.degree., and a web plane diversion angle (.beta.) of 0.degree.. A plurality of deflection rod groups may be used, guiding webs alternately, for example, for example, to the right or left after having passed through a stack, or permitting passage of the webs through an additional stack (FIG. 13) since, upon passage about the deflection rods, the orientation of the surfaces of the filter web is reversed. The webs are pulled from between the filter plates after separation of the filter plates by a transport mechanism, located downstream of a last group of deflection rods. Preferably, a cleaning apparatus (41), such as a tensioned wire, is located at or adjacent the deflection element to remove filtrate and filter cake and the like from the filter web before the latter is rewound or collected for disposal.
REFERENCES:
patent: 1610671 (1925-02-01), Funk
patent: 2760773 (1956-08-01), Brodie
patent: 3608734 (1971-09-01), Schneider
patent: 3608743 (1971-09-01), Schneider
patent: 3809303 (1974-05-01), Brunner
patent: 4274961 (1981-06-01), Hirs
Jones W. Gary
Savage Matthew
Tenag AG
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