CN220450220U - Blast furnace body structure - Google Patents
Blast furnace body structure Download PDFInfo
- Publication number
- CN220450220U CN220450220U CN202321697381.4U CN202321697381U CN220450220U CN 220450220 U CN220450220 U CN 220450220U CN 202321697381 U CN202321697381 U CN 202321697381U CN 220450220 U CN220450220 U CN 220450220U
- Authority
- CN
- China
- Prior art keywords
- ceramic cup
- furnace
- bricks
- maintenance section
- cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000011449 brick Substances 0.000 claims abstract description 58
- 239000000919 ceramic Substances 0.000 claims abstract description 53
- 238000012423 maintenance Methods 0.000 claims abstract description 30
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 8
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 7
- 239000010431 corundum Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 4
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000003628 erosive effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model discloses a blast furnace body structure, which comprises a ceramic cup, a furnace shell, a furnace brick lining, a furnace body base, a discharge hole and a furnace bottom, wherein the discharge hole penetrates the ceramic cup, the furnace brick lining and the furnace shell obliquely upwards; the ceramic cup is built by corundum mullite brick body, and the area that the ceramic cup is close to the discharge gate is equipped with the maintenance section that can dismantle the brick body from the top down in proper order, and the whole gomphosis of maintenance section is in ceramic cup inner wall and outstanding. According to the utility model, the inner side of the discharge hole of the ceramic cup is designed, the detachable maintenance section embedded in the inner wall of the ceramic cup is added, when the discharge hole (inner cup opening) is damaged by oxidation and needs to be replaced after long-time use, the inner cup opening can be replaced only by disassembling the maintenance section, the whole annular brick of the ceramic cup does not need to be disassembled from top to bottom, and the ceramic cup is convenient to replace after damage, and saves time and labor.
Description
Technical Field
The utility model relates to the technical field of blast furnaces, in particular to a blast furnace body structure.
Background
Ceramic cups built with refractory bricks have been one of the main technologies for extending the life of iron-making blast furnaces for many years. The molten iron is not directly contacted with the carbon bricks due to the existence of the ceramic cup, so that damages of penetration, erosion, scouring and the like of the molten iron and alkaline substances to the carbon bricks are relieved from structural design, and the mullite, brown fused alumina and the like adopted are high-grade ceramic materials with low heat conductivity, have high erosion resistance and scouring resistance, and eliminate embrittling layers of large carbon bricks. The temperature of molten iron is improved, and heat loss is reduced. The ceramic cup is made of a material with lower heat conduction than carbon bricks and plays a role of a separation layer, so that heat loss through the furnace bottom and the hearth is reduced.
The patent with the publication number of CN217781190U discloses a ceramic cup masonry structure in a hearth image foot area of a blast furnace, which comprises a furnace shell and a hearth built in the furnace shell, wherein the hearth consists of a hearth side wall layer and a hearth bottom layer positioned at the bottom of the hearth side wall layer, the ceramic cup is built in the hearth, the ceramic cup comprises a ceramic cup wall and a ceramic cup pad, the ceramic cup wall is built on the inner side surface of the hearth side wall layer, the ceramic cup pad is built on the upper surface of the hearth bottom layer, the height of the ceramic cup pad from the center of the hearth bottom layer to the direction of the hearth side wall layer is increased in a smooth curve manner until the ceramic cup pad is in arc transitional connection with the bottom end of the ceramic cup wall layer to form a "pan bottom type" masonry structure, a discharge hole of the ceramic cup is formed by encircling a plurality of special bricks from top to bottom, and the brick body is easily oxidized, the inner side working condition of the brick body is severe, the part is the place with the most serious oxidation erosion, the time and the brick body needs to be replaced regularly, the brick body needs to be replaced, and the brick body is a layer, the brick body is replaced from the brick body, and the brick body is easy to be replaced from the brick body, and the brick body is required to be replaced.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides a blast furnace body structure which is used for designing the inner side of a discharge hole of a ceramic cup, adding a detachable maintenance section which is embedded into the inner wall of the ceramic cup, and when the discharge hole (inner cup opening) is used for a long time and is damaged by oxidization and needs to be replaced, the inner cup opening can be replaced only by disassembling the maintenance section, the whole section of annular brick of the ceramic cup is not required to be disassembled from top to bottom, the replacement after the damage is convenient, time and labor are saved, and the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the blast furnace body structure comprises a ceramic cup, a furnace shell, a furnace brick lining, a furnace body base, a discharge hole and a furnace bottom, wherein the discharge hole penetrates through the ceramic cup, the furnace brick lining and the furnace shell obliquely upwards; the ceramic cup is built by corundum mullite brick body, and the area of ceramic cup near the discharge gate is equipped with the maintenance section that can dismantle the brick body from the top down in proper order, and the maintenance section wholly gomphosis is in ceramic cup inner wall and outstanding.
Preferably, the maintenance section comprises arc section bricks stacked up and down in multiple layers, wherein the arc section bricks are corundum mullite brick bodies, and the multiple layers of arc section bricks enclose round holes corresponding to the discharge holes.
Preferably, the height of the maintenance section is 30-40cm higher than the uppermost part of the round hole at the inner side of the discharge hole.
Preferably, the hearth comprises a plurality of layers of microporous carbon bricks and at least two layers of hearth ceramic mats thereon.
Preferably, the furnace brick lining is an ultra-microporous carbon brick.
Compared with the prior art, the utility model has the beneficial effects that: the inner side of the discharge hole of the ceramic cup is designed, the maintenance section which is embedded in the inner wall of the ceramic cup and is detachable is added, when the discharge hole (inner cup opening) is damaged by oxidation for a long time, the inner cup opening can be replaced by only disassembling the maintenance section, the whole section of annular brick of the ceramic cup is not required to be disassembled from the upper part of the furnace mouth to the next layer, the replacement is convenient after the damage, and the time and the labor are saved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a maintenance section structure of the present utility model;
FIG. 3 is a cross-sectional view of the utility model A-A;
fig. 4 is an enlarged schematic view of a partial structure of the present utility model.
In the figure: 1 ceramic cup, 2 furnace shell, 3 furnace brick lining, 4 furnace body base, 5 discharge port, 6 furnace bottom, 7 maintenance section and 7.1 arc section brick.
Detailed Description
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present utility model, and in order to facilitate description of the present utility model, it is not indicated or implied that the device or element referred to must have a specific azimuth:
referring to fig. 1-4, the present utility model provides a technical solution: a blast furnace body structure comprises a ceramic cup 1, a furnace shell 2, a furnace brick lining 3, a furnace body base 4, a discharge hole 5 and a furnace bottom 6, wherein the discharge hole 5 penetrates the ceramic cup 1, the furnace brick lining 3 and the furnace shell 2 obliquely upwards; the ceramic cup 1 is built by corundum mullite bricks, a maintenance section 7 capable of sequentially disassembling the bricks from top to bottom is arranged in the area, close to the discharge hole 5, of the ceramic cup 1, and the maintenance section 7 is integrally embedded into the inner wall of the ceramic cup 1 and protrudes;
the inner area of the discharge hole 5 of the ceramic cup 1 is designed, a maintenance section 7 which is embedded in the inner wall of the ceramic cup 1 and is detachable is additionally arranged around the discharge hole 5, namely, the side wall of the ceramic cup 1 at the upper part of the maintenance section 7 does not block the disassembly work of the maintenance section 7, when the inner side (inner cup opening) of the discharge hole 5 is used for a long time and is damaged by oxidization, and needs to be replaced, the inner cup opening can be replaced only by disassembling the maintenance section 7, the whole annular brick of the ceramic cup 1 is not required to be disassembled from top to bottom, the replacement is convenient after the damage, time and labor are saved, the whole maintenance section 7 is more outstanding, namely, the thickness of the end is increased, and the oxidation resistance of the end is better;
specifically, as shown in fig. 3 and 4, the maintenance section 7 comprises arc section bricks 7.1 stacked in multiple layers up and down, wherein the arc section bricks 7.1 are corundum mullite brick bodies, the multiple layers of arc section bricks 7.1 enclose round holes corresponding to the discharge holes 5, the height of the maintenance section 7 is 30-40cm higher than the uppermost part of the round holes on the inner sides of the discharge holes 5, the maintenance section 7 protrudes out of the side wall of the ceramic cup 1, and the inner sides of the round holes on the high sides of the maintenance section 7 are 30-40cm, namely, the maintenance section 7 is detached and replaced when detached and replaced, so that the operation is convenient;
in addition, the hearth 6 comprises a plurality of layers of microporous carbon bricks and at least two layers of hearth ceramic mats thereon; the furnace brick lining 3 is made of ultra-microporous carbon bricks.
The utility model has not been described in detail in the prior art, and it is apparent to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the above-described embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (1)
1. The utility model provides a blast furnace body structure, includes ceramic cup (1), stove outer covering (2), brickwork inside lining (3), furnace body base (4), discharge gate (5) and stove bottom (6), its characterized in that: the discharge hole (5) obliquely penetrates through the ceramic cup (1), the furnace brick lining (3) and the furnace shell (2); the ceramic cup (1) is built by corundum mullite bricks, a maintenance section (7) capable of sequentially disassembling the bricks from top to bottom is arranged in a region, close to the discharge port (5), of the ceramic cup (1), and the maintenance section (7) is integrally embedded into the inner wall of the ceramic cup (1) and protrudes; the maintenance section (7) comprises arc section bricks (7.1) which are stacked up and down in multiple layers, the arc section bricks (7.1) are corundum mullite brick bodies, and the multiple layers of arc section bricks (7.1) encircle round holes corresponding to the discharge holes (5); the height of the maintenance section (7) is 30-40cm higher than the uppermost part of the round hole at the inner side of the discharge hole (5); the furnace bottom (6) comprises a plurality of layers of microporous carbon bricks and at least two layers of furnace bottom ceramic mats thereon; the furnace brick lining (3) is made of ultra-microporous carbon bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321697381.4U CN220450220U (en) | 2023-06-30 | 2023-06-30 | Blast furnace body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321697381.4U CN220450220U (en) | 2023-06-30 | 2023-06-30 | Blast furnace body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220450220U true CN220450220U (en) | 2024-02-06 |
Family
ID=89734284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321697381.4U Active CN220450220U (en) | 2023-06-30 | 2023-06-30 | Blast furnace body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220450220U (en) |
-
2023
- 2023-06-30 CN CN202321697381.4U patent/CN220450220U/en active Active
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