DE102008052800A1 - Slag door for metallurgical stoves - Google Patents

Abstract

The invention has for its object to provide a slag door for metallurgical furnaces, in which a slag door opening in the upper vessel of the furnace is provided with a door tunnel with a sheep plate and the slag door is actuated by a Verschließmechanismus. This object is achieved by virtue of the fact that the closing mechanism is arranged outside the furnace wall, provided that it is closed, that the clear cross section of the slag door opening can be closed by at least two horizontally pivotable door wings.

Description

The Invention relates to a slag door for metallurgical furnaces, a slag door opening in the upper vessel of Furnace with a door tunnel with a sheep plate provided is and the slag door through a closing mechanism is operable.

From the WO 2007/147248 a slag door is known, which is formed in three parts.

there is an upper door part or door through a flap pivotable about a horizontal axis is formed while below these two, finger-like, swiveling about vertical axes Door leaves are provided.

Either the swing mechanism for the flap as well as the adjustment or closing mechanism for the lower door leaves is arranged in the furnace wall of the furnace vessel.

task The invention is to provide a slag door, the structurally less expensive and in particular also a subsequent Installation in existing metallurgical furnaces without significant alterations allowed.

• – dass der Verschließmechanismus außerhalb der Ofenwand, dieser vorgesetzt, angeordnet ist,
• – dass der lichte Querschnitt der Schlackentüröffnung durch wenigstens zwei horizontal schwenkbare Türflügel verschließbar ist, wobei
• – die Türflügel in zumindest drei Positionen arretierbar sind,

zu denen eine erste Stellung gehört, in der die Türflügel im wesentlichen in einer Ebene stehen,
eine zweite Stellung, die senkrecht zu der gemeinsamen Ebene ist und die Offenstellung darstellt, und
einer dritten Stellung, in der die Türflügel einen spitzen, in Richtung auf das Ofeninnere weisenden, Winkel bilden, der einen Öffnungsspalt zwischen den Türflügeln freigibt.This object is achieved according to the invention by a slag door for metallurgical furnaces, wherein a slag door opening in the upper vessel of the furnace is provided with a door tunnel with a sheep plate and the slag door can be actuated by a closing mechanism,
characterized,

• That the closing mechanism is arranged outside the furnace wall, provided this,
• - That the clear cross-section of the slag door opening is closed by at least two horizontally pivoting door leaves, wherein
• - The door leaves are lockable in at least three positions,

which includes a first position in which the door leaves are substantially in one plane,
a second position which is perpendicular to the common plane and represents the open position, and
a third position in which the door wings form an acute, pointing in the direction of the furnace interior, angle, which releases an opening gap between the door wings.

Preferably Embodiments emerge from the subclaims and consist in that provided that four door leaves are that are arranged in pairs one above the other and that the door leaves independently are operable.

Preferably the doors are still in a position lockable, in which they at an acute angle to the outside are open, so by the between the door sash edges formed gap a controlled slag removal is possible.

The Invention will be explained below with reference to the drawings become.

there shows:

1 schematically the formation of a slag door, with two door wings, in different positions,

2 another education of the two doors and

3 an embodiment with four door leaves.

In these schematic representations, the wall of a metallurgical furnace is merely indicated and with 1 designated.

In this wall is a doorway 2 intended. In front of this doorway 2 , More precisely, in front of the wall surface formed by the furnace wall, so this pre-set, is a frame 3 symbolically indicated, on which the door leaves 4 . 5 and 6 - 9 are attached or held by them.

With the frame 3 is a closing mechanism connected to the respective door, which is not shown here.

The individual representations in these figures show which positions can take the door wings.

So is in the 1 respectively. 2 , the upper illustration, the closed state shown.

ever if necessary, the accessibility to the oven interior, can one or both of the doors be opened.

A special feature is then in each case in the lower representations of 1 respectively. 2 shown here, and here take the door wings a - pointing towards the furnace interior acute angle, which leads to a gap between the opposite door leaf edges remains.

These Movability of the door leaves made possible by Push back the slag cleaning the sheep plate.

Not shown in the drawings, finally, a position of the door, in one pointed, outwardly opened angle.

in this connection becomes, as with the inward pointing position, a gap between the opposite door leaf edges released, which allows a controlled slag runoff.

It Of course, it is clear that the position of the door Lockable in any other position, but essential are at least the aforementioned positions.

The 3 Finally, also shows different positions of - in this case, four, arranged in pairs, door leaf.

In the lower position is served by the lower door leaves for slag control and for cleaning the sheep plate, while the upper doors, in their open Position, allowing further access to the furnace interior, For example, to perform maintenance.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• WO 2007/147248 [0002]

Claims (4)

Slag door for metallurgical furnaces, wherein a slag door opening in the upper vessel of the furnace is provided with a Schaffplatte door tunnel and the slag door is actuated by a Verschließmechanismus, characterized in that - the closing mechanism outside the furnace wall, this prefitted, is arranged - that the clear Cross-section of the slag door opening is closed by at least two horizontally pivoting door leaf, wherein - the door leaves are lockable in at least three positions, to which a first position belongs, in which the door wings are substantially in one plane, a second position perpendicular to the common Level is and represents the open position, and a third position in which the door wings form an acute, pointing in the direction of the oven interior, angle, which releases an opening gap between the door wings. Slag door according to claim 1, characterized that four door leaves are provided, which are in pairs one above the other are arranged. Slag door according to one of the preceding claims, characterized in that the door leaves independently can be actuated from each other. Slag door according to one of the preceding claims, characterized in that the door wings in a position in which they are at an acute angle are open to the outside.