JPH07150214A - Metal container - Google Patents

Abstract

PURPOSE: To provide a metallic vessel which has an opening, surely prevents closure, prevents formable deposits from hindering the insertion of a measuring and/or sampling probe and other lance-like devices and makes the deposits easily removable.

CONSTITUTION: The metallic vessel has a metallic external casing 7, heat resistant back linings 8 and 9 which are disposed on the inner side of this metallic external casing 7 and an opening 1 which passes the wall 3 of the vessel 4 for the purpose of the insertion of the lance-like metallic device which is preferably the measuring and/or sampling probe. The metallic vessel 4 has the following characteristics in order to prevent the closure of the opening 1: The aperture 1, when viewed from outside, is formed of the portion 12 which is tapered toward the narrow area 11 and the portion 13 enlarged from the narrow area 11. The tapered portion 12 is lined by a metallic sheet 14. The enlarged portion 13 is at least partially provided with metallic reinforcing materials 16, 16' having a gas supply device 20.

COPYRIGHT: (C)1995,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal container, and more particularly, to a steel mill converter, in which a metal outer casing and a heat-resistant backing and a post-stage combustion lance provided inside the metal outer casing, a dust feed lance, etc. The present invention relates to a steel mill converter with an opening through the wall of the vessel for the insertion of a lance-shaped metal device, which is preferably the measuring and / or sampling probe or other device required for the operation of.

[0002]

2. Description of the Related Art A probe opening in the form of a cylindrical opening passing through the conical upper part of a converter is known from DE-C-39 34340. To avoid closing the probe opening,
It is known from this document to provide a backing of graphite or a mixture of graphite and alumina in the probe opening in order to facilitate the removal of precipitates such as and / or slag.

[0003]

The disadvantage in this case is that the length of the probe opening is increased, which is
This is because the heat resistant backing has a specific minimum thickness and the probe opening passes through it at a constant angle. Due to the long length, measuring and / or insertion of the sampling probe may also be hindered by relatively small deposits.

It is an object of the present invention to provide a metal container having an opening of the kind mentioned above, which reliably prevents closure and which deposits which can be formed are measured and / or sampling tips and other lance-like devices. It is to create something that does not interfere with insertion and can be easily removed.

[0005]

[Means and Actions for Solving the Problems]
It is achieved by combining the following features. 1. When viewed from the outside from the inside, the opening is formed by a portion that is tapered toward a narrow area and a portion that expands from this narrow area. 2. The tapered portion is lined with a metal sheath. 3. A metal reinforcement having a gas supply is at least partially provided in the enlarged part.

The metal stiffener advantageously comprises in a narrow area a tubular tube covered by a front cover with a central groove for a lance-like device and is formed of a heat-resistant material and inside the metal container. A lining extending towards the inside is provided inside the tubular tube.

In order to ensure internal gas cooling of the probe opening, at its thinnest point, the lining has a suitably larger inner diameter than the opening in the front cover, and the gas supply device does this. An annular chamber opening towards the front is provided between the thinnest point of the lining and the front plate.

A particularly efficient flow of gas through the probe opening is that the metal reinforcement is formed by a tubular double jacket tube, the double jacket tube facing away from the interior of the metal container. At the front cover, which seals the hollow chamber formed by the double jacket tube to the outside, but has a central groove for the passage of a lance-like device, When the device opens towards the hollow chamber of the double-jacketed tube, which hollow chamber forms an open annular gap at the end of the container facing the internal chamber, and an inner side wall which widens towards the container interior. It is obtained when the backing of the heat-resistant material it has is provided in the inner tube of the double jacket tube.

Furthermore, the gas supply means advantageously opens towards the tapered portion of the opening adjacent the narrow area.

If the metal backing of the tapered part is designed as a truncated pyramid, simple manufacture is guaranteed.

Preferably, the lower surface of the tapered portion of the opening is perpendicular to the longitudinal axis of the metal container, and the side surface of the tapered portion of the opening opposite the lower surface is the longitudinal axis of the tubular metal reinforcement. Are arranged so as to be substantially parallel to.

It is particularly advantageous when the longitudinal axis of the tubular metal reinforcement is at an angle of 19 to 22 degrees with respect to the vertical longitudinal axis of the tubular inner surface of the backing of the metal container. If an angle of less than 19 degrees is chosen, this leads to a large increase in the size of the enlarged part of the opening, thus making it more likely that the metal container backing is in the shape of a converter. It will be difficult.

Above an angle of 22 degrees, the technical device introduced through the opening of the measuring lance, etc.
It may make the action of finding a path to the wing lance area more difficult.

The enlarged part of the probe opening has its longitudinal axis passing through the line of intersection of the cylindrical inner surface of the lining and the inner surface of the cone-shaped upper part of the converter of the lining. Are arranged in an advantageous manner.

Easy manufacture of a metal container when the metal reinforcement in the enlarged portion of the opening projects towards the opening of the metal sheath in the tapered portion with a small lateral gap. Is obtained.

A gas supply device which is particularly efficient in opening a gas supply device (preferably adjacent to the thinnest point thereof) toward a hollow chamber surrounded by a metal reinforcement in a tapered portion of the opening. Cooling is sure.

According to a preferred embodiment, the lining provided inside the metal reinforcement at the enlarged portion of the opening is made of a material such as graphite which is not wet by liquid metal and liquid slag. .

In order to increase the stability of the probe opening and at the same time prevent deformation and damage of the lining in this area, the outer end of the metal sheath in the tapered portion of the opening is passed through a rigid frame to the metal container. Is advantageously connected to the metal outer casing.

According to a preferred embodiment, the internal chamber of the enlarged part of the opening is preferably designed in the shape of a truncated cone.

In order to ensure a particularly efficient cooling of the probe opening, the metal sheath of the tapered portion of the opening is
Suitably in the form of a double jacket surrounding the annular hollow chamber, the gas supply device opens towards the hollow chamber and further comprises a hollow chamber of the metal sheath connected in flow to the hollow chamber of the double jacket.

An advantageous process for the action of the metal container with cooling of the probe opening is to include the enlarged part of the opening and
If necessary, cooling of the tapered section occurs continuously during the converter cycle, and cooling of the metal sheath in the tapered section of the opening is preferably accomplished by a nitrogen. Characterized by what occurs in the process. Cooling with argon and / or air is also conceivable.

[0022]

The invention is described in more detail below with the aid of the embodiments shown in the drawings. FIG. 1 is a cross-sectional view of a portion through the longitudinal axis of the converter in the area of the probe opening,
FIG. 2 shows the first embodiment in the direction of arrow II in FIG. 1 on a reduced scale. 3 and 4 show
2 in a section and drawing similar to FIGS. 1 and 2.
FIG. 5 shows a third embodiment in a drawing similar to FIG.

According to the embodiment shown in FIGS. 1 and 2,
An opening 1 (hereinafter referred to as a probe opening) for introducing and removing the lance-shaped device, preferably for introducing and removing the measuring and / or sampling probe 2 according to FIG. That is, it passes through the wall 3 of the steelworks converter 4 in the area of the upper part 6 of the frustum of the converter 4. Converter wall 3
Is formed by a steel outer casing 7,
A heat-resistant backing, that is, an outer backing 8 and a heat-resistant inner backing 9 are arranged in the inside thereof, and this is lined with bricks inside the converter 4.

Viewed from the outside to the inside, the probe opening 1 is formed by a portion 12 that tapers toward a narrow area 11 located approximately in the center of the wall 3 and a portion 13 that expands from this narrow area 11. Has been done. As can be seen in FIG. 1, the tapered portion 12 is lined with a metal sheath 14 whose thickness corresponds approximately to the thickness of the casing 7 of the converter 4.

The conversion point of the converter 4 to the casing 7 (the t
At the ransition point, a rigid frame 15 is provided which is secured to both the metal sheath 14 and the casing 7 of the converter 4 by means of welded joints.

In the enlarged portion 13 of the probe opening 1,
A metal reinforcement 16 in the form of a double jacket tube is provided. An annular hollow chamber 17 formed by a double jacket tube 16 in a direction outside the converter
Is the front covering the double jacket tube 16.
It is sealed by the cover 18-steel plate,
The hollow chamber 17 opens to the inside of the converter 10 and forms an annular gap 19.

A gas supply device 20 is opened towards the hollow chamber 17, through which a gas (preferably an inert gas such as nitrogen) can be introduced. This gas diverges toward the inside of the converter 10 and a protective gas shroud that cools the probe opening 1 is used.
shroud).

Inside the double jacket tube 16 is provided a backing 21 of refractory material, which may be made of a material such as graphite which is not wet by liquid metal or liquid slag. desirable. In the inward direction of the converter 4, the backing 21 itself has an enlarged side wall 22, which preferably forms a truncated cone generatrix.

The double jacket tube 16 does not extend as far as the inner surface 26 of the inner lining 9 of the converter 4, but terminates at a distance from this inner surface 23. The inner lining 9 is designed to extend particularly sharply from the annular gap 19 of the double jacket tube 16.

As can be seen in FIG. 1, an additional gas supply device 24 is adjoining the point 11, which is actually narrow, towards the pyramidal-shaped chamber formed by the metal sheath 14 of the tapered portion 12. The device is also open and nitrogen (nitrogen), argon and / or air can also be introduced into the chamber by the device.

The front cover 18 of the double jacket tube 16 has a central opening 25 through which a measuring and / or sampling probe or other lance-like device can be inserted.

As can be seen from FIG. 1, a sealing plug 26 that seals the probe opening 1 is introduced into the probe opening 1.

Lower surface 2 of tapered portion 12 of probe opening 1
7 is perpendicular to the longitudinal axis 28 of the converter 4. A side surface 29 of the tapered portion of the probe opening 1 opposite to the lower surface 27 is arranged so as to be substantially parallel to the longitudinal axis 30 of the double jacket tube 16.

The longitudinal axis 30 of the enlarged portion 13 of the probe opening 1 is preferably designed to be inclined at an angle of 19 to 22 degrees with respect to the longitudinal axis 28 of the converter 4. Therefore, the longitudinal axis 30 corresponds to the inner surface 2 of the tubular portion 32 of the converter 4.
3 and the inner surface 2 of the frustoconical upper part 6 of the converter 4
They are arranged in such a manner as to pass through the 3'intersection line 31.

According to the embodiment shown in FIGS. 3 and 4, a simple backing 21 is inserted with the part of the probe opening 1 expanding towards the inside 10 of the converter 4. A metal tube 16 ′ is provided instead of the double jacket tube 16. However, this lining 21 is a metal tube 1
A gas supply device 20 is formed between the backing 21 and the front cover 18 and terminates at a distance from the front cover 18 of 6 ′ and opens toward the annular chamber 33.

The gas passes from the annular chamber 33 through the annular gap 35 formed between the measuring and / or sampling probe 2 and between the front cover 18 and the measuring and / or sampling probe 2. Flowing. As a result, the nitrogen gas supplied by the gas supply line 20 flows into the inside 10 of the converter 4.

According to the embodiment shown in FIGS. 3 and 4, the support structure 36 which guides the measuring and / or sampling probe 2 or other lance-like device when inserted into the probe opening 1 rolls. It is provided in the casing 7 of the furnace 4.

As can be seen from FIG. 5, the metal sheath 14 in the tapered portion of the probe opening 1 has the shape of a double jacket surrounding the annular hollow chamber 37, and the gas supply device 38 is directed toward the hollow chamber 37. It is open. The hollow chamber 37 is preferably open towards the annular hollow chamber 17 of the double jacket tube 16, in which case the gas supply 20 is not necessary, in which case the cooling gas is passed through the gas supply 38. Only supply is needed. However, the hollow chamber 37 can also be cooled independently of the hollow chamber 17 of the double jacket tube 16.

[0039]

According to the present invention, a metal container having an opening of a kind, which reliably prevents closure and is capable of forming and / or sampling a deposit, is used in a lance-like device. It is possible to provide a device that does not hinder insertion and can be easily removed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a portion through a longitudinal axis of a converter in a region of a probe opening.

FIG. 2 is a perspective view of the sealing plug as viewed in the direction of arrow II in FIG.

FIG. 3 is a cross-sectional view of a portion through the longitudinal axis of the converter in the area of the probe opening according to the second embodiment.

FIG. 4 is a perspective view of the probe from the IV direction in FIG.

FIG. 5 is a cross-sectional view of a portion through the longitudinal axis of the converter in the area of the probe opening according to the third embodiment.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norbert Ramade, Linz A-4020, Austria, Robert Storz-Strasse 14 (72) Inventor Manfred Eisn, Austria, Püchenau A-4040, Eschenbacher Weg 23 (72) ) Inventor Helmut Kerschbaum Austria, Neutzig A-4523, Ahornstraße 36 (72) Inventor Wilfried Pilkerbauer Austria, Niederneukirchen A-4491, Schmeedberg 13 (72) Inventor Barry Juri Nikolaevich Ukraine, Dneprojerzinsk Energachekov Street 44 (72) Inventor Uchichel Lev Mikhailov Ji Ukraine, de Wells pro György Nsu click, 21-13, Rett S. SS Yale Street 50 (72) inventor Goncharenko Gen'naji Nikoraebi pitch Ukraine, de Wells pro Dnepropetrovsk, Kirov Abenyu 45-39

Claims (17)

[Claims] 1. A metal container (4), in particular a metal outer casing (7) and a heat-resistant backing (8, 9) provided inside the metal outer casing (7), and a lance-shaped metal device, Is preferably a measuring and / or sampling probe (2), characterized in that it comprises an opening (1) through the wall (3) of the container (4) for the insertion of and having the following features: Steel mill converter (4). 1. Area where the opening (1) is narrow when viewed from the outside
It is formed by a portion (12) which is tapered towards (11) and a portion (13) which expands from this narrow area (11). 2. The tapered portion (12) is lined with a metal sheath (14). 3. The enlarged part (13) has a gas supply device (20).
A metal stiffener (16, 16 ') is provided at least partially. 2. Metal reinforcement (16, 16 ') is a narrow area
At (11) comprising a tubular tube covered by a front cover (18) having a central groove (25) for a lance-like device, and made of a heat resistant material and inside a metal container (4) Lining that is expanding toward (10)
The metal container according to claim 1, wherein (21) is provided inside the tubular tube. 3. The lining (21) at the narrowest point has a larger inner diameter than the opening (1) in the front cover (18) and towards this the gas supply device (2).
Metal container according to claim 2, characterized in that an annular chamber (33) with an opening (0) is provided between the narrowest point of the backing (21) and the front plate (18). 4. Metal reinforcement (16) is formed by a tubular double jacket tube (16), said double jacket tube (16) facing away from the inside (10) of the metal container (4). At the open end, a central groove (25) is provided for sealing the hollow chamber (17) formed by the double jacket tube (16) to the outside but for the passage of a lance-like device.
The gas supply device (20) is covered by a front cover (18) having a double jacket pipe (16).
Opening towards the hollow chamber (17) of the container, which hollow chamber forms an annular gap (19) opening at the end of the container (4) facing the inner chamber (10), and the container (4) Inner side wall (22) that expands toward the inside (10) of the
Double jacketed tube with heat-resistant lining (21)
The metal container according to claim 1, wherein the metal container is provided inside the inner pipe of (16). 5. The gas supply device (24) is characterized in that it adjoins the narrow area (11) and opens towards the tapered portion (12) of the opening (1). The metal container according to any one of 1 to 4. 6. The metal container according to claim 1, wherein the metal backing (14) of the tapered portion (12) is designed in a truncated pyramid shape. 7. The lower surface (27) of the tapered portion (12) of the opening (1) is perpendicular to the longitudinal axis (28) of the metal container (4),
And the lower surface (2) of the tapered portion (12) of the opening (1)
The side surface (29) opposite to 7) has a tubular metal reinforcement (16,
Metal container according to any one of claims 1 to 6, characterized in that it is arranged substantially parallel to the longitudinal axis (30) of 16 '). 8. The longitudinal axis (30) of the tubular metal reinforcement is 19 to 19 relative to the vertical longitudinal axis (28) of the cylindrical inner surface (23) of the lining (8, 9) of the metal container (4). The metal container according to claim 1, wherein the metal container has an angle of 22 degrees. 9. An inner surface (23) of the enlarged portion (13) of the opening (1) whose longitudinal axis (30) is lined with a backing (8, 9).
And the inner surface (23) of the lining (8, 9) of the conical upper part (6) of the converter (4) are arranged in such a manner as to pass through a line of intersection (31). The converter according to any one of claims 1 to 8, which comprises: 10. An enlarged portion (13) of the opening (1).
The metal reinforcement (16, 16 ') according to claim 1 projects towards the opening of the metal sheath (14) of the tapered portion (12) with a small lateral gap. The metal container according to any one of claims 1 to 9. 11. A gas supply device (20), preferably adjacent to its narrowest point, surrounded by a monetary reinforcement (16 ') in the tapered portion (12) of the opening (1). Metal container according to any one of claims 1 to 10, characterized in that it opens towards a hollow chamber (33) which is open. 12. An enlarged portion (13) of the opening (1).
The backing (21) provided inside the metal reinforcement (16, 16 ') of claim 1 is formed from a material such as graphite which is not wet by liquid metal and liquid slag. The metal container according to any one of 1 to 11. 13. The outer end of the metal sheath (14) of the tapered portion (12) of the opening (1) is connected to the metal outer casing (7) of the metal container (4) through a rigid frame (15). The metal container according to claim 1, wherein the metal container is a metal container. 14. An enlarged portion (13) of the opening (1).
Metal container according to any one of claims 1 to 13, characterized in that the inner chamber of the is designed in the shape of a truncated cone. 15. A gas sheath (3) in which the metal sheath (14) of the tapered portion (12) of the opening (1) is in the form of a double jacket surrounding the annular hollow chamber (37).
Metal container according to any one of claims 1 to 14, characterized in that 8) opens towards the hollow chamber (37) (Fig. 5). 16. A hollow chamber (3) with a metal sheath (14).
Metal container according to any one of claims 4 to 15, characterized in that 7) is connected in flow to a hollow chamber (17) of a double jacket tube (16). 17. A process for operating a metal container in the form of a converter (4) according to one or more of claims 1 to 16 with cooling of the opening (1), the opening ( Cooling of the enlarged portion (13) of 1) and, if necessary, of its tapered portion, during the course of the converter cycle, and also of the metal of the tapered portion (12) of the opening (1). A process characterized in that the cooling of the sheath (14) occurs continuously, preferably with nitrogen, during the course of oxygen blowing.