Liquid purification or separation – Sectional chamber press type
Patent
1997-09-11
2000-01-25
Savage, Matthew O.
Liquid purification or separation
Sectional chamber press type
210230, 210507, 210508, B01D 2519
Patent
active
060174501
ABSTRACT:
A filter press frame and method, operable for compressing a stack of filter plates, provides a very light frame as compared to the iron, steel and stainless steel filter press frames that have been used for the last one hundred years. The filter press frame of the present invention is formed of material much more resistant to corrosion for a much wider pH spectrum of acids and bases than iron, steel, and stainless steel frames. In a preferred embodiment, the filter press tail, follower, and head, referred to generally as head members, are comprised of core material inserts encapsulated with fiber reinforced plastic. Laminates have a thickness and fibers are oriented to optimize the construction strength of the components based on stresses that are preferably anticipated through techniques such as finite element analysis. Unidirectional fiber reinforced plastic is used to form an endless looping sideband that encircles the head members and is suitably capable of supporting the very high forces normally associated with filter presses. Multidirectional fiber reinforced plastic is used to form the head members. Metal inserts with knurled outer surface and inner threads for steel bolts are used to connect a drive and/or hydraulic cylinder between the tail and follower.
REFERENCES:
patent: 2812065 (1957-11-01), Wilson
patent: 3233733 (1966-02-01), Moss
patent: 4353947 (1982-10-01), Northcutt
patent: 4608922 (1986-09-01), Pohl
patent: 4627133 (1986-12-01), Bartlow
patent: 5006215 (1991-04-01), Borrione et al.
patent: 5725767 (1998-03-01), Culkin
Nash Kenneth L.
Savage Matthew O.
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