Apparatus for filtration of molten metal
First Claim
Patent Images
1. A liquid metal filter apparatus for purifying a metal bath, comprising:
- a filtering vessel having a rim, sidewalls, and a bottom, said bottom having a hole therethrough;
said hole in said bottom of said filtering vessel having a wall, wherein said wall of the hole is substantially vertical;
a filter element of a porous ceramic material having an open cell structure characterized by a plurality of interconnected pores, said filter element being cemented to said wall of the hole;
a shock resistant ring attached to said rim;
a brace rigidly attached to said ring; and
a bracket rigidly positioned external to the molten metal bath and said brace being attached to said bracket for rigidly positioning said crucible with respect to the molten metal bath.
5 Assignments
0 Petitions
Accused Products
Abstract
An apparatus and method for filtering molten metal is disclosed. The apparatus includes a filtering vessel, a portion of which is a porous filter material. Attached to the rim of the filtering vessel is a shock resistant ring. The filtering vessel is positioned such that the porous filter material is submerged in the molten metal, and the rim is held above the surface of the molten metal by a brace which is attached to a fixed bracket.
The molten metal is filtered by seeping through the porous filter material into the filtering vessel. The filtered molten metal is extracted from the filtering vessel.
-
Citations
22 Claims
-
1. A liquid metal filter apparatus for purifying a metal bath, comprising:
-
a filtering vessel having a rim, sidewalls, and a bottom, said bottom having a hole therethrough; said hole in said bottom of said filtering vessel having a wall, wherein said wall of the hole is substantially vertical; a filter element of a porous ceramic material having an open cell structure characterized by a plurality of interconnected pores, said filter element being cemented to said wall of the hole; a shock resistant ring attached to said rim; a brace rigidly attached to said ring; and a bracket rigidly positioned external to the molten metal bath and said brace being attached to said bracket for rigidly positioning said crucible with respect to the molten metal bath. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
2. A liquid metal filter apparatus for purifying a metal bath, comprising:
-
a filtering vessel having a rim, sidewalls, and a bottom, said bottom having a hole therethrough; said hole in said bottom of said filtering vessel having a wall, wherein said wall of the hole is concave; a filter element of a porous ceramic material having an open cell structure characterized by a plurality of interconnected pores, said filter element being cemented to said wall of the hole; a shock resistant ring attached to said rim; a brace rigidly attached to said ring; and a bracket rigidly positioned external to the molten metal bath and said brace being attached to said bracket for rigidly positioning said crucible with respect to the molten metal bath. - View Dependent Claims (3)
-
-
4. A liquid metal filter apparatus for purifying a metal bath, comprising:
-
a filtering vessel having a rim, sidewalls, and a bottom, said bottom having a hole therethrough; said hole in said bottom of said filtering vessel having a wall, wherein said walls of the hole is substantially convex and said filter element is composed of two or more lamellar sections; a filter element of a porous ceramic material having an open cell structure characterized by a plurality of interconnected pores, said filter element being cemented to said wall of the hole; a shock resistant ring attached to said rim; a brace rigidly attached to said ring; and a bracket rigidly positioned external to the molten metal bath and said brace being attached to said bracket for rigidly positioning said crucible with respect to the molten metal bath.
-
-
14. A liquid metal filter apparatus for purifying a metal bath, comprising:
-
a faceted configured filtering vessel having a rim, sidewalls, and a bottom, said bottom having a hole therethrough; said hole in said bottom of said filtering vessel having a wall, said wall of said hole is undercut; a filter element of a porous ceramic material having an open cell structure characterized by a plurality of interconnected pores, said filter element being cemented to said wall of the hole; a shock resistant ring attached to said rim; a brace rigidly attached to said ring; and a bracket rigidly positioned external to the molten metal bath and said brace being attached to said bracket for rigidly positioning said crucible with respect to the molten metal bath. - View Dependent Claims (15, 16)
-
-
17. A liquid metal filter apparatus for purifying a metal bath, comprising:
-
a filtering vessel of a castable refractory having a rim, sidewalls, and a bottom, said bottom having a hole therethrough; said hole in said bottom of said filtering vessel having a wall, said wall of said hole is undercut; a filter element of a porous ceramic material having an open cell structure characterized by a plurality of interconnected pores, said filter element being cemented to said wall of the hole; a shock resistant ring attached to said rim; a brace rigidly attached to said ring; and a bracket rigidly positioned external to the molten metal bath and said brace being attached to said bracket for rigidly positioning said crucible with respect to the molten metal bath. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification