Electric glass furnace

Abstract

Electric Glass Furnace The invention relates to a glass furnace (1), at least partly electric, comprising a melting tank (2) made of refractory materials adapted to contain a bath (3) of molten glassable materials and a plurality of immersion heating electrodes (An, Bn, Cn, Dn), which are immersed from the free surface of said bath (3) and supplied with electric current by an electrical installation (4), said furnace (1) being characterized in that said electrical installation (4) is adapted to generate a two-phase alternating current, said electrical installation comprising a transformer module (6) adapted to generate two single-phase output groups (AB, CD) with a phase difference of 90° between each output group (AB, CD), each output group (AB, CD) supplying a quartet ((An; Bn); (Cn; Dn)) of said electrodes. Figure for the abstract: Fig. 1

Claims

15. Glass furnace according to the preceding claim, characterized in that each portion of the tank is equipped with a transformer module generating the two single-phase output groups (AB, CD) with a phase difference of 90° between each output group (AB, CD), each output group (AB, CD) supplying a quartet ((An ; Bn) ; (Cn ; Dn)) of said electrodes.

16. A method for melting vitrifiable materials implemented using a glass furnace (1) according to any one of claims 1 to 15, characterized in that it comprises at least one step of electrically heating said bath (3) of molten vitrifiable materials by means of said plurality of electrodes (An, Bn, Cn, Dn), and by applying within said bath (3) a two-phase alternating current.

17. A method for melting vitrifiable materials according to claim 16 implemented by means of a glass furnace (1) according to claim 9, characterized in that the quartet ((An ; Bn) ; (Cn ; Dn)) of electrodes connected to the same output group (AB, CD) of said two-phase transformer (6) are supplied with an electric current of the same voltage.

18. A method for manufacturing glass wool, rock wool, textile glass yarns and / or flat or hollow glass, characterized in that it implements a melting process according to one of claims 16 and 17. [Fig. 1] [Fig. 2] [Fig. 3] [Fig. 4] [Fig. 5]

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