Molten metal filtration system using continuous media filter

Details Molten metal filtration system using continuous media filter Molten metal filtration system using continuous media filter

Filed on

1986-12-08

Date issued

1988-09-06

Examiner

Fisher, Richard V.

Patent Class

Liquid purification or separation

SubClass

Processes

SubSubClass

Separating

Other Related Categories

210806, 210297, 210387, 210400, 2105001, B01D 3300, B01D 3602, B01D 3700

Type

Patent

Status

active

Patent number

047691581

Description

ABSTRACT:
An improved filter system is disclosed for filtering a liquid media such as molten metal, e.g., molten aluminum and aluminum base alloys, the system comprises a housing containing a first chamber into which molten metal to be filtered passes, a second chamber in the housing, a filter cloth that separates the first chamber from the second chamber, a high specific flow static filter in the second chamber, and means for moving the filter cloth in the housing to expose fresh surfaces of filter cloth to the metal being filtered to inhibit clogging of the filter cloth means by buildup of the filter cake and maintaining a constant high level of filtration efficiency.

REFERENCES:
patent: 307707 (1884-11-01), Byerley
patent: 794631 (1905-07-01), Milne
patent: 4007923 (1977-02-01), Chia
patent: 4481108 (1984-11-01), Bratten
patent: 4556535 (1985-12-01), Bowman et al.
Eckert et al., "An Experimental Technique for Determining Specific Cake Resistance Values in the Cake Mode Filtration of Aluminum Alloys", in Light Metals 1985 (Proceedings of the Technical Sessions sponsored by the TMS Light Metals Committee, 114th Annual Meeting, Feb. 24-28, 1985, published by the Metallurgical Society of AIME, edited by H. O. Bohner, pp. 1224-1248.
Eckert et al., "Molten Metal Filtration: Fundamentals and Models" in Light Metals 1984 (Proceedings of the Technical Sessions sponsored by the TMS Light Metals Committee, 113th Annual Meeting, Feb. 27-Mar. 1, 1984, published by the Metallurgical Society of AIME), edited by J. P. McGeer, pp. 1281-1304.

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