CZ279501B6 - Glass pot furnace - Google Patents

Abstract

A glass pot furnace (6) with direct outflow of glass melt through a hole in the lower part of the pot has, in the floor system (1), an outflow channel (2) and drain channel (4). The side wall of the floor system (1) of the furnace (6) is preferably equipped with an embrasure (7) for the outflow module (8), which is slide fitted.<IMAGE>

Description

(57)

A glass melting furnace (6) with a direct glass outlet through an opening at the bottom of the ladle has an outlet trough (2) and a discharge trough (4) in the bottom assembly (1). The side wall of the bottom assembly (1) of the furnace (6) is preferably provided with a recess (7) for the outlet module (8), which can be slidably mounted.

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Glass melting furnace

The invention relates to a glass melting furnace with a direct glass discharge.

Up to now, in ladle furnaces, the molten glass melted in the ladle is either withdrawn from the surface by the upper working opening or discharged through the opening in the lower part of the ladle. When discharged through the lower orifice, the orifice is closed during melting by a stopper or mechanically operated stopper. After melting, the glass is discharged by removing the stopper or stopper by means of a tube or groove that is attached to the drain opening in the ladle. This enamel discharge technology is very labor intensive, with high demands on heat work, resulting in high heat losses and damage to the pan by cold air. Handling the spout or pipe is time consuming and may result in injury to the operator.

These drawbacks are eliminated by the glass melting furnace according to the invention, which consists in using a stable discharge trough formed directly in the furnace bottom assembly together with a discharge trough which prevents mixing of the hearth glass melted in the space below the demountable outlet troughs and tubes. ladles from the batch spray, with the parent glass melted in the ladle. Advantageously, the side wall of the bottom of the furnace assembly is formed below a spout into a recess into which the spout module can be inserted.

The main advantage of the glass melting furnace according to the invention is the elimination of handling of the discharge device. This will significantly improve workplace safety and hygiene. It is also advantageous that the outlet module is closely fitted to the furnace and forms a single unit with it. This ensures a minimal suction of cold air into the furnace space during emptying of the ladle and hence the ladle is not exposed to thermal shocks in the discharge area, which has a favorable effect on its service life. The possibility of moving the module from the furnace up to a distance of 3 m is particularly advantageous when handling the ladle.

BRIEF DESCRIPTION OF THE DRAWINGS The invention is more clearly apparent from the accompanying schematic drawing of an exemplary embodiment.

In the bottom assembly 1 of the glass furnace 6, a discharge trough 2 is permanently formed. The outflow trough 2 is separated from the surrounding bottom 1 of the furnace 6 by a discharge trough 4 which opens into a glass sump 5. A recess 7 is formed in the side wall of the furnace 6 below the outlet trough 2 into which a mobile outlet module 8 consisting of a trough 9 of refractory material is provided, provided at its end with an outlet opening 10 with a replaceable tray 11. The module 8 is equipped with at least one heating section with heating elements 12 and level gauge 13.

After melting of the glass in the ladle 3, the outlet opening is released and the glass starts to flow into the inclined outlet trough 2, which is part of the bottom 1 of the furnace 6, and leads the glass to the attached outlet module 8. To prevent deterioration of the glass by the hearth glass melted in the space below the pan 3, the hearth glass is discharged from this space by the outlet trough 4 which opens into the glass sump 5. The glass from the outlet trough 2 flows into the trough 9 of the outlet module 8. enamel discharge is in progress

As the recess 7 in the side wall of the bottom 1 of the furnace 6 allows the outlet module 8 to be sufficiently slid under the outlet trough 2. After reaching a certain level in the module 8, which is controlled by the level gauge 13, the outlet opening is automatically closed. 2, the water-cooled stop 14 and thus the glass outflow is interrupted. The filled module 8 can be displaced up to a distance of 3 m from the melting furnace by means of a rail travel 15, if necessary.

Claims (2)

PATENT CLAIMS Glass pan at the bottom of the furnace, outlets (1) of the furnace trickle (4). a melting furnace with a direct glass discharge through an orifice characterized in that an outlet trough (2) and an outlet Glass melting furnace according to claim 1, characterized in that a recess (7) for the outlet module (8) is formed in the side wall of the bottom (1) of the furnace bottom (6) below the outlet trough (2).