Molten metal filter
First Claim
1. A filter element for a molten metal filter, consisting of:
- a refractory member in the form of a rectangular prism having exterior surfaces and having a narrow perimeter and large, flat sides, the member being hollow so as to define a single interior cavity, the member including an opening through one face, the member being constructed such that molten metal can flow through the exterior surfaces of the member into the cavity and thereafter can flow out of the cavity through the opening.
2 Assignments
0 Petitions
Accused Products
Abstract
A molten metal filter includes a refractory plate having an opening therethrough. A refractory filter element is attached to the refractory plate and projects therefrom, the exterior surfaces of the filter element generally defining a rectangular prism. The filter element is hollow so as to define an interior cavity. The filter element includes an opening in that portion of the filter element that is attached to the refractory plate, the opening surrounding the opening in the refractory plate such that fluid communication is established between the cavity and the opening in the refractory plate. In the preferred embodiment, a plurality of filter elements are provided, which filter elements are connected to the refractory plate such that adjacent sides of the filter elements are oriented vertically and are disposed generally parallel to each other. It is preferred that the refractory plate be oriented generally vertically and disposed within a filter box so as to define an inlet chamber within which the filter elements are disposed, and an exit chamber through which filtered metal can be discharged from the filter box. Best results are obtained by forming the filter elements from a porous, refractory, ceramic material or glass frit-bonded or sintered silicon carbide or alumina, and by forming the refractory plate from a siliceous-based, castable, refractory material.
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Citations
23 Claims
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1. A filter element for a molten metal filter, consisting of:
a refractory member in the form of a rectangular prism having exterior surfaces and having a narrow perimeter and large, flat sides, the member being hollow so as to define a single interior cavity, the member including an opening through one face, the member being constructed such that molten metal can flow through the exterior surfaces of the member into the cavity and thereafter can flow out of the cavity through the opening. - View Dependent Claims (2, 3, 4, 5)
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6. A molten metal filter, comprising:
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a refractory plate having a first opening therethrough; and a first, refractory filter element attached to the refractory plate and projecting therefrom, the filter element defining a rectangular prism having exterior surfaces and having a narrow perimeter and large, flat sides, the filter element being hollow so as to define an interior cavity, the filter element including an opening at that portion of the filter element that is attached to the refractory plate, the opening in the filter element surrounding the first opening in the refractory plate such that fluid communication is established between the cavity and the first opening in the refractory plate. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A molten metal filter, comprising:
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a refractory box defining a chamber, the box having an inlet through which molten metal can be directed into the chamber and an outlet through which molten metal can be discharged from the chamber; a vertically oriented refractory plate disposed within the chamber, the plate dividing the chamber into first and second sections, the first section being in fluid communication with the inlet and the second section being in fluid communication with the outlet, the refractory plate including an opening that provides fluid communication between the first and second sections; and a refractory filter element attached to the plate end projecting therefrom, the filter element being disposed within the first section, the filter element including exterior surfaces that define a rectangular prism having a narrow perimeter and large, flat sides, the filter element being hollow so as to define an interior cavity, the filter element including an opening in that portion of the filter element that is attached to the refractory plate, the opening in the filter element surrounding the opening in the refractory plate such that fluid communication is established between the cavity and the opening in the refractory plate. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification