Converter cap brick structure

Abstract

The utility model discloses a converter cap brick structure, a converter cap brick is of a hexahedron structure, and the right end face or the left end face of the converter cap brick is an arc-shaped face which is arranged in an inclined mode, so that the arc-shaped face is contacted with a converter shell steel plate in an attached mode. The shape of one end face of the furnace cap brick is matched with that of a furnace shell steel plate, the furnace cap brick and the furnace shell steel plate are mutually attached and contacted, and gaps do not need to be filled with magnesia powder, so that cavities at the furnace cap can be prevented, the service life of a converter lining is prolonged, and smooth production is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace cap bricks, and more particularly to a converter furnace cap brick structure. Background Art

[0002] During the converter construction process, due to the large inclination angle of the furnace shell at the furnace cap, a large gap is formed between the permanent layer of magnesium bricks in the furnace cap and the furnace shell steel plate. Currently, the gap between the permanent layer of standard magnesium bricks and the furnace shell steel plate is usually filled with magnesia powder. However, due to the friction caused by frequent furnace shaking in actual production, the filled magnesia powder gradually leaks through the air vents in the furnace shell, causing the standard magnesium bricks in the furnace cap to lose support and begin to loosen. The loose standard magnesium bricks continuously impact and wear the furnace shell and the magnesium carbon brick working layer, causing a large number of standard magnesium bricks to break, wear and pulverize, and thus form voids in the furnace cap.

[0003] Therefore, providing a safe and reliable converter cap brick structure is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the utility model provides a converter cap brick structure to prevent the formation of cavities in the cap area, increase the service life of the converter lining, and ensure smooth production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A converter cap brick structure is provided. The cap brick is a hexahedron structure. The right end face or the left end face of the cap brick is an inclined arc surface, so that the arc surface is in contact with the furnace shell steel plate.

[0007] By adopting the above technical solutions, the beneficial effects of the utility model are:

[0008] The shape of one end face (right end face or left end face) of the furnace cap brick is adapted to the shape of the furnace shell steel plate, and they fit in contact with each other. There is no need to fill the gap with magnesia powder, which can prevent the formation of voids in the furnace cap, increase the service life of the converter lining, and ensure smooth production.

[0009] Furthermore, when the right end face of the furnace cap brick is an inclined arc surface, the left end face, upper end face, lower end face, front end face and rear end face of the furnace cap brick are all planes; when the left end face of the furnace cap brick is an inclined arc surface, the right end face, upper end face, lower end face, front end face and rear end face of the furnace cap brick are all planes.

[0010] Furthermore, the working size of the lower end surface of the furnace cap brick is larger than the working size of the upper end surface of the furnace cap brick.

[0011] Furthermore, the working dimension of the lower end face of the furnace cap brick is 643.5 mm, and the working dimension of the upper end face of the furnace cap brick is 559.5 mm; when the right end face of the furnace cap brick is an inclined curved surface, the masonry dimension of the left end face of the furnace cap brick is 100 mm, and when the left end face of the furnace cap brick is an inclined curved surface, the masonry dimension of the right end face of the furnace cap brick is 100 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0013] Figure 1 The accompanying drawing is a structural schematic diagram of a converter cap brick structure provided by the utility model. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] like Figure 1 As shown, an embodiment of the present invention discloses a converter cap brick structure. The cap brick has a hexahedral structure and is made of a magnesia-carbon material with a magnesium oxide content of not less than 76% and a carbon content of not less than 12%. The right end face 1 or the left end face 2 of the cap brick is an inclined arc surface. In this embodiment, the right end face 1 of the cap brick is an inclined arc surface, so that the arc surface is in close contact with the furnace shell steel plate. The shape of the right end face 1 of the cap brick of the utility model is adapted to the outer shape of the furnace shell steel plate, and they are in close contact with each other, eliminating the need to fill gaps with magnesia powder. This prevents the formation of voids in the cap area, improves the service life of the converter lining, and ensures smooth production.

[0016] Specifically, when the right end face 1 of the furnace cap brick is an inclined arc surface, the left end face 2, upper end face 3, lower end face 4, front end face and rear end face of the furnace cap brick are all planes; when the left end face 2 of the furnace cap brick is an inclined arc surface, the right end face 1, upper end face 3, lower end face 4, front end face and rear end face of the furnace cap brick are all planes. In this embodiment, the right end face 1 of the furnace cap brick is an inclined arc surface.

[0017] Specifically, the working size of the lower end face 4 of the furnace cap brick is larger than the working size of the upper end face 3 of the furnace cap brick. In this embodiment, the working size (length) of the lower end face 4 of the furnace cap brick is 643.5 mm, and the working size (length) of the upper end face 3 of the furnace cap brick is 559.5 mm; the masonry size (height) of the left end face 2 of the furnace cap brick is 100 mm.

[0018] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0019] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A converter cap brick structure, the cap brick is a hexahedral structure, characterized in that: The right end surface or the left end surface of the furnace cap brick is an inclined arc surface, so that the arc surface is in contact with the furnace shell steel plate.

2. The converter cap brick structure according to claim 1, characterized in that: When the right end face of the furnace cap brick is an inclined arc surface, the left end face, upper end face, lower end face, front end face and rear end face of the furnace cap brick are all planes; when the left end face of the furnace cap brick is an inclined arc surface, the right end face, upper end face, lower end face, front end face and rear end face of the furnace cap brick are all planes.

3. A converter cap brick structure according to claim 1 or 2, characterized in that: The working size of the lower end surface of the furnace cap brick is larger than the working size of the upper end surface of the furnace cap brick.

4. The converter cap brick structure according to claim 3, characterized in that: The working dimension of the lower end face of the furnace cap brick is 643.5 mm, and the working dimension of the upper end face of the furnace cap brick is 559.5 mm; when the right end face of the furnace cap brick is an inclined curved surface, the masonry dimension of the left end face of the furnace cap brick is 100 mm, and when the left end face of the furnace cap brick is an inclined curved surface, the masonry dimension of the right end face of the furnace cap brick is 100 mm.

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