CN213300857U - Spherical furnace bottom lining masonry structure of oxygen oblique blowing converter - Google Patents

Abstract

The utility model discloses a spherical furnace bottom lining masonry structure of an oxygen oblique blowing converter, which comprises a central combined brick (1), a ring brick layer (2), an arch foot brick layer (3) and a safety layer (4), wherein the ring brick layer (2) is built around the central combined brick (1) through a plurality of ring bricks, the arch foot brick layer (3) is built around the ring brick layer (2) through a plurality of arch foot bricks, the safety layer (4) is built around the arch foot brick layer (3) through a plurality of safety layer bricks, and the shapes of the ring brick layer (2), the arch foot brick layer (3) and the safety layer (4) are all circular rings; the masonry structure is built on the inner side of a furnace shell of the oxygen oblique blowing converter spherical furnace, and compressible filler (5) is placed between the safety layer (4) and the inner side of the furnace shell of the oxygen oblique blowing converter spherical furnace. The utility model discloses stability is high, be difficult for encircleing, the hunch foot brick is difficult cracked, strong to the furnace shaft packing force, build by laying bricks or stones simply, the security is high, the difficult seepage of fuse-element, saving refractory material.

Description

Spherical furnace bottom lining masonry structure of oxygen oblique blowing converter

Technical Field

The utility model belongs to the technical field of the oxygen converter of blowing to one side that non ferrous metal and noble metal smelted, concretely relates to spherical stove bottom inside lining masonry structure of oxygen converter of blowing to one side.

Background

The traditional oxygen oblique blowing converter bottom lining is a flat bottom, the masonry structure has poor stability, thermal stress of the bottom lining after the converter is opened is not released everywhere after the converter is heated, and the bottom brick body is broken and cracked by arching; meanwhile, the furnace bottom presses the furnace body lining upwards, so that the melt is easy to leak from the furnace body; and the oxygen inclined-blowing converter body rotates for 360 degrees, even if the flat bottom of the converter is washed by the melt, the flat bottom of the converter can also become a spherical crown shape, thereby wasting refractory materials. Therefore, the traditional flat furnace bottom has the problems of poor stability, easy upwarping of furnace bottom bricks, easy leakage of melt from the furnace body and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of unstable structure and easy upwarp of the open hearth by designing the masonry structure of the spherical hearth lining of the oxygen oblique blowing converter.

The purpose of the utility model is realized through the following technical scheme:

the masonry structure is characterized by comprising a central combined brick (1), a ring brick layer (2), an arch foot brick layer (3) and a safety layer (4), wherein the ring brick layer (2) is built around the central combined brick (1) through a plurality of ring bricks, the arch foot brick layer (3) is built around the ring brick layer (2) through a plurality of arch foot bricks, the safety layer (4) is built around the arch foot brick layer (3) through a plurality of safety layer bricks, and the ring brick layer (2), the arch foot brick layer (3) and the safety layer (4) are all in a circular ring shape; the masonry structure is built on the inner side of a furnace shell of the oxygen oblique blowing converter spherical furnace, and compressible filler (5) is placed between the safety layer (4) and the inner side of the furnace shell of the oxygen oblique blowing converter spherical furnace.

The masonry structure for the spherical bottom lining of the oxygen oblique blowing converter is characterized in that the ring brick layers (2) are a plurality of adjacent concentric rings.

The masonry structure of the spherical bottom lining of the oxygen oblique blowing converter is characterized in that the central combined brick (1) is masonry at the spherical bottom position of the oxygen oblique blowing converter.

The utility model has the advantages of: the utility model discloses a spherical anti-arch structure, with the stove outer covering shape laminating completely, can concentrate the pressure of metal melt to the stove bottom at the stove bottom, effectively alleviateed the pressure of fuse-element to the shaft, consequently stability is high. The masonry structure of the utility model is composed of a plurality of rings, so the brick joints are smaller. The masonry structure comprises the arch foot bricks, can transfer the thermal stress of the furnace bottom to the furnace body, effectively compresses the furnace body bricks and prevents leakage. The compressible filler below the spherical arch is used for leveling and protecting the furnace shell, and can play a role of a safety layer. The masonry structure has the advantages of high furnace bottom stability, difficult upwarp, difficult fragmentation of arch springing bricks, strong pressing force on the furnace body, simple masonry, high safety, difficult leakage of melt, refractory material saving and the like. The utility model discloses a non ferrous metal and noble metal production provide the powerful guarantee, have effectively improved oxygen and blown converter stove bottom inside lining life to wholly improved oxygen and blown converter inside lining life to one side, and then improve oxygen and blown converter inside lining life and operation rate to one side.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a sectional view of a spherical hearth of an oxygen oblique blowing converter taken from the diameter.

Detailed Description

Referring to fig. 1-2, the utility model discloses a spherical stove bottom inside lining masonry structure of oxygen oblique blowing converter, a serial communication port, masonry structure includes central combination brick 1, ring brick layer 2, hunch foot brick layer 3, safety blanket 4, builds ring brick layer 2 through a plurality of ring bricks around central combination brick 1, and ring brick layer 2 encircles central combination brick and builds by laying bricks or stones, measures ring brick layer outer edge and stove outer covering distance at any time when building bricks or stones, must keep unanimous. The arch foot brick layer 3 is built around the ring brick layer 2 through a plurality of arch foot bricks, and the arch foot brick layer 3 plays the effect of supporting the furnace shaft lining, is the place where thermal stress is most concentrated, and its upper surface must be level, and is unanimous with the furnace shaft distance. The safety layer 4 is built by a plurality of safety layer bricks around the arch springing brick layer 3, and the safety layer and the compressible filler play the role of a protective layer and a buffer layer to prevent the leakage of the melt. The ring brick layer 2, the arch foot brick layer 3 and the safety layer 4 are all in the shape of a circular ring; the masonry structure is built on the inner side of a furnace shell of the oxygen oblique blowing converter spherical furnace, compressible filler 5 is placed between the safety layer 4 and the inner side of the furnace shell of the oxygen oblique blowing converter spherical furnace, and the compressible filler is used for leveling and protecting the furnace shell and plays a role of the safety layer. The ring brick layer 2 is a plurality of adjacent concentric rings. The central combined brick 1 is built at the spherical bottom of the oxygen oblique blowing converter. The central combined brick is a combined bonding brick and plays a role in positioning, the masonry position of the central combined brick directly influences the masonry of the ring bricks and the arch springing bricks, and if the positioning is not accurate, the problems of non-concentricity of the furnace bottom and the furnace body, large masonry brick gaps of the ring bricks and the arch springing bricks, large processing amount and the like are caused.

The oxygen oblique blowing converter body is of a bottle-shaped structure and can be roughly divided into a furnace bottom, a furnace body and a furnace cap, wherein a steel shell of the furnace bottom is in a spherical crown shape. The main functions of the furnace bottom lining are to protect the furnace shell and to support the furnace body lining. When the masonry structure is built, the furnace bottom is leveled by using the filler, then the central combined brick is positioned and built, and then the ring brick, the arch foot brick and the protective brick are built at one time, and the whole masonry structure is annular. The concrete masonry process is as follows:

(1) measuring the inner diameter and the height of the furnace shell, and determining the upper surface control line of the arch springing brick from the downward returning dimension of the furnace mouth;

(2) measuring and determining the center of the furnace bottom;

(3) leveling the lower surface of the central combined brick by using compressible filler;

(4) building a central combined brick, measuring the horizontal size from one circle of the outer edge of the central combined brick to the furnace body, and ensuring the size to be consistent;

(5) building ring brick layers ring by ring, and measuring the horizontal size from one ring of outer edge of each ring brick layer to the furnace body at any time to ensure the consistent size;

(6) after the ring brick layer is built, the arch springing brick layer is built, the upper surface is ensured to be level with the control line, and if the upper surface is uneven, compressible filler or a method for processing arch springing bricks can be used;

(7) building safety layer bricks and compressible fillers, and ramming to be compact.

Claims (3)

1. The masonry structure is characterized by comprising a central combined brick (1), a ring brick layer (2), an arch foot brick layer (3) and a safety layer (4), wherein the ring brick layer (2) is built around the central combined brick (1) through a plurality of ring bricks, the arch foot brick layer (3) is built around the ring brick layer (2) through a plurality of arch foot bricks, the safety layer (4) is built around the arch foot brick layer (3) through a plurality of safety layer bricks, and the ring brick layer (2), the arch foot brick layer (3) and the safety layer (4) are all in a circular ring shape; the masonry structure is built on the inner side of a furnace shell of the oxygen oblique blowing converter spherical furnace, and compressible filler (5) is placed between the safety layer (4) and the inner side of the furnace shell of the oxygen oblique blowing converter spherical furnace.

2. The spherical hearth lining masonry structure of the oxygen oblique blowing converter according to claim 1, characterized in that the ring brick layers (2) are adjacent concentric rings.

3. The spherical hearth lining masonry structure for an oxygen cross-blown converter according to claim 1, characterized in that the central composite brick (1) is masonry at the spherical hearth position of the oxygen cross-blown converter.

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