Converter tapping hole seating brick

Abstract

The utility model discloses a converter tapping hole seating brick which comprises an inner seating brick and an outer seating brick which are connected with each other, the inner seating brick is in a hexahedron shape, and a first cylindrical hole penetrating through the left end face and the right end face of the inner seating brick is formed in the inner seating brick; the outer brick cup is cylindrical, a second cylindrical hole penetrating through the two bottom faces of the outer brick cup is formed in the outer brick cup and corresponds to the first cylindrical hole in position, and a groove is formed in the side, close to the right end face, of the upper end face of the inner brick cup. The groove is formed in the corresponding position of the inner seat brick, so that interference with the inner side corner end of the steel sheath during installation is avoided, the step of cutting off the inner side corner end of the steel sheath is omitted, and installation is simple, convenient, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of converter structure, in particular to a converter tapping hole seat brick. Background Art

[0002] The converter is a type of steel-making furnace, which is mainly composed of a furnace shell and a furnace lining. The furnace shell has a tapping port, on which a steel jacket is installed. The furnace lining is mainly composed of multiple furnace body bricks, multiple arc transition bricks and multiple furnace cap bricks. The converter tapping port seat bricks are supporting refractory materials for the casing bricks, and are mainly composed of inner seat bricks and outer seat bricks at the tapping port. The inner seat bricks at the tapping port are built at the tapping port and partially extend into the steel jacket, the outer seat bricks are located inside the steel jacket, the furnace body bricks are located at the bottom of the inner seat bricks at the tapping port, and the furnace cap bricks are located at the top of the inner seat bricks at the tapping port. In order to increase the structural strength of the channel of the inner seat bricks at the tapping port, the thickness between the channel and the outer surface of the inner seat bricks at the tapping port is usually thicker.

[0003] However, since the furnace body bricks and arc transition bricks are allowed to have a dimensional deviation of ±1mm, if the dimensions of some or all of the furnace body bricks and arc transition bricks are larger than the standard size, it is necessary to cut the furnace cap bricks on the upper side of the tapping port inner seat bricks. When the bottom plane of the furnace cap bricks that are in contact with or close to the tapping port inner seat bricks is located above the steel jacket, it is necessary to cut off the inner corner end of the steel jacket to avoid obstructing the masonry of the tapping port inner seat bricks. In this case, the installation operation of the tapping port inner seat bricks is cumbersome, the cutting size is not easy to control during the process, and it is time-consuming and laborious.

[0004] Therefore, providing a converter tapping port base brick that is easy to install is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the utility model provides a converter tapping port seat brick, which is easy to install and saves time and effort.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A converter tapping port base brick comprises an inner base brick and an outer base brick connected to each other, wherein the inner base brick is in a hexahedral shape, and has a first cylindrical hole inside that passes through its left end face and right end face; the outer base brick is in a cylindrical shape, and has a second cylindrical hole inside that passes through its two bottom faces, and the second cylindrical hole corresponds to the position of the first cylindrical hole, and the upper end face of the inner base brick is provided with a groove near the right end face.

[0008] By adopting the above technical solution, the beneficial effects of the utility model are:

[0009] By providing grooves at corresponding positions of the inner seat bricks, interference with the inner corner ends of the steel sheaths during installation is avoided, and the step of cutting off the inner corner ends of the steel sheaths is omitted, making installation easy, saving time and effort.

[0010] Furthermore, it also includes casing bricks, which are laid on the inner periphery of the first cylindrical hole and the second cylindrical hole; ramming material is filled between the casing bricks and the outer seat bricks, and between the steel jacket and the outer seat bricks.

[0011] Furthermore, the front end face and the rear end face of the inner seat brick are both polygonal, the left end face, the right end face, the upper end face and the lower end face of the inner seat brick are all trapezoidal, and the upper end face and the lower end face are distributed in parallel.

[0012] Furthermore, the length of the lower edge of the right end face is greater than the length of the upper edge of the right end face. The length of the lower edge of the left end face is greater than the length of the upper edge of the left end face. The left edge of the left end face is symmetrically distributed with the right edge of the left end face, and the left edge of the right end face is symmetrically distributed with the right edge of the right end face.

[0013] Furthermore, the thickness between the outer surface of the inner seat brick and the outer wall of the first cylindrical hole is not less than 140 mm.

[0014] Furthermore, the outer base bricks include a plurality of cylindrical bricks, each of which has a first annular groove on its upper bottom surface, and an annular boss on its lower bottom surface, and two adjacent cylindrical bricks are connected by engaging the first annular groove and the annular boss.

[0015] Furthermore, the right end surface of the inner seat brick has a second annular groove, and the annular boss of the cylindrical brick that is in contact with the right end surface is embedded in the second annular groove.

[0016] Furthermore, the first cylindrical hole and the second cylindrical hole have the same outer diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 The accompanying drawing is a structural schematic diagram of a converter tapping hole seat brick provided by the utility model;

[0019] Figure 2 The accompanying drawing is a schematic diagram of the structure of the inner seat brick provided by the utility model;

[0020] Figure 3 The accompanying drawing is a schematic diagram of the structure of the outer seat brick provided by the utility model;

[0021] Figure 4 The accompanying drawing is a cross-sectional view of the outer seat brick provided by the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, the embodiment of the utility model discloses a converter tapping hole seat brick, including an inner seat brick 1 and an outer seat brick 2 connected to each other, the inner seat brick 1 is in a hexahedral shape, and the inner seat brick 1 has a first cylindrical hole penetrating its left end face and right end face; the outer seat brick 2 is in a cylindrical shape, and the outer seat brick 2 has a second cylindrical hole penetrating its two bottom faces, and the second cylindrical hole corresponds to the position of the first cylindrical hole, and the upper end face of the inner seat brick 1 is provided with a groove 11 near the right end face. The utility model provides a groove 11 at the corresponding position of the inner seat brick, thereby avoiding interference with the inner corner end of the steel jacket 3 during installation, eliminating the step of cutting the inner corner end of the steel jacket 3, and facilitating installation, saving time and effort.

[0024] Specifically, it also includes casing bricks 4, which are laid on the inner periphery of the first cylindrical hole and the second cylindrical hole; ramming materials 5 are filled between the casing bricks 4 and the outer seat bricks 2, and between the steel sheath 3 and the outer seat bricks 2.

[0025] Specifically, the front end face and the rear end face of the inner seat brick 1 are polygonal, the left end face, the right end face, the upper end face and the lower end face are trapezoidal, the upper end face and the lower end face are distributed in parallel, and the lower edge length of the right end face is greater than the upper edge length of the right end face> the lower edge length of the left end face> the upper edge length of the left end face, and the left edge of the left end face is symmetrically distributed with the right edge of the left end face, and the left edge of the right end face is symmetrically distributed with the right edge of the right end face. The inner seat brick 1 of the utility model adopts a multi-dimensional wedge-shaped belt groove overall design to increase stability and reduce the amount of brick cutting.

[0026] Specifically, the thickness between the outer surface of the inner seat brick 1 and the outer wall of the first cylindrical hole is not less than 140 mm.

[0027] If the inner diameter of the steel sheath 3 is large and the axial length is long, as in the present embodiment, the inner diameter of the steel sheath 3 is 900 mm, the outer seat brick 2 includes a plurality of cylindrical bricks 21, the outer diameter of each cylindrical brick 21 is 800 mm, the upper bottom surface of each cylindrical brick 21 has a first annular groove 211, and the lower bottom surface of each cylindrical brick 21 is provided with an annular boss 212, and two adjacent cylindrical bricks 21 are connected by the first annular groove 211 and the annular boss 212.

[0028] Specifically, the right end face of the inner seat brick 1 has a second annular groove 12, and the annular boss 212 of the cylindrical brick 21 that fits the right end face is embedded in the second annular groove 12. The inner seat brick 1 and the outer seat brick 2 are embedded and connected, and the connection is stable and reliable with good integrity.

[0029] Specifically, the outer diameters of the first cylindrical hole and the second cylindrical hole are the same, and in this embodiment, both are 350 mm.

[0030] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0031] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those 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 will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A converter tapping hole base brick, comprising an inner base brick and an outer base brick connected to each other, wherein the inner base brick is in a hexahedral shape, and has a first cylindrical hole inside the inner base brick that passes through its left end face and right end face; the outer base brick is in a cylindrical shape, and has a second cylindrical hole inside the outer base brick that passes through its two bottom faces, and the second cylindrical hole corresponds to the position of the first cylindrical hole, characterized in that: The upper end surface of the inner seat brick is provided with a groove on one side close to the right end surface.

2. The converter tapping hole brick according to claim 1, characterized in that: It also includes casing bricks, which are laid on the inner periphery of the first cylindrical hole and the second cylindrical hole; ramming materials are filled between the casing bricks and the outer seat bricks, and between the steel jacket and the outer seat bricks.

3. A converter tapping hole brick according to claim 1 or 2, characterized in that: The front end face and the rear end face of the inner seat brick are both polygonal, the left end face, the right end face, the upper end face and the lower end face of the inner seat brick are all trapezoidal, and the upper end face and the lower end face are distributed in parallel.

4. The converter tapping hole brick according to claim 3, characterized in that: The length of the lower edge of the right end face is greater than the length of the upper edge of the right end face. The length of the lower edge of the left end face is greater than the length of the upper edge of the left end face. The left edge of the left end face is symmetrically distributed with the right edge of the left end face, and the left edge of the right end face is symmetrically distributed with the right edge of the right end face.

5. The converter tapping hole brick according to claim 4, characterized in that: The thickness between the outer surface of the inner seat brick and the outer wall of the first cylindrical hole is not less than 140 mm.

6. The converter tapping hole brick according to claim 1, characterized in that: The outer base bricks include a plurality of cylindrical bricks, each of which has a first annular groove on its upper bottom surface, and an annular boss on its lower bottom surface. Two adjacent cylindrical bricks are connected by being engaged with each other through the first annular groove and the annular boss.

7. The converter tapping hole brick according to claim 6, characterized in that: The right end surface of the inner seat brick has a second annular groove, and the annular boss of the cylindrical brick that is in contact with the right end surface is embedded in the second annular groove.

8. The converter tapping hole brick according to claim 1, characterized in that: The first cylindrical hole and the second cylindrical hole have the same outer diameter.

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