CN215799669U - Iron notch structure for preventing gas leakage - Google Patents
Iron notch structure for preventing gas leakage Download PDFInfo
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- CN215799669U CN215799669U CN202121472066.2U CN202121472066U CN215799669U CN 215799669 U CN215799669 U CN 215799669U CN 202121472066 U CN202121472066 U CN 202121472066U CN 215799669 U CN215799669 U CN 215799669U
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- taphole
- furnace
- gas leakage
- frame
- preventing gas
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Abstract
The utility model relates to the technical field of blast furnace equipment, in particular to a taphole structure for preventing gas leakage, which comprises a taphole on a blast furnace, an original mud ladle in the furnace, a taphole channel communicated with the taphole, a taphole frame covering the taphole and a furnace shell part around the taphole frame, wherein the center of the taphole frame extends towards the side of a furnace cylinder to form the taphole channel; an inclined through hole is preset in the center of the taphole channel and penetrates through the furnace shell. The utility model has simple structure, convenient site construction, fast construction speed, stable quality after construction and strong sealing property, and can effectively prevent the gas leakage.
Description
Technical Field
The utility model relates to the technical field of blast furnace equipment, in particular to an iron notch structure for preventing gas leakage.
Background
The blast furnace is a common device for mineral smelting, the blast furnace ironmaking technology has the advantages of good economic index, simple process, large production capacity, high labor production efficiency, low energy consumption and the like, and the iron produced by the method accounts for the vast majority of the total iron production in the world. The blast furnace taphole is positioned at the lower edge of the hearth, the working environment is severe, the blast furnace taphole is eroded and washed by high-temperature iron slag for a long time, the area of the blast furnace taphole is one of the weakest links in the hearth, and the quality of the taphole not only influences the normal production of the blast furnace, but also shortens the service life of the blast furnace.
At present, most of blast furnace tapholes are still built by adopting large bricks, because gaps among the large bricks are more, coal gas leakage in the taphole area during production is easily caused, the normal operation of the blast furnace is influenced, even if the original mud bags in the furnace are poured finally, the original mud bags cannot be integrated into a whole to generate a sealing effect, and the problem of coal gas leakage is still easily caused.
Disclosure of Invention
The utility model provides a gas leakage prevention taphole structure, which is simple in structure, convenient for field construction, fast in construction speed, stable in quality after construction, strong in airtightness and capable of effectively preventing gas leakage, and aims to solve the problems that most of tapholes of the existing blast furnace are still built by using massive bricks, and the normal operation of the blast furnace is influenced because gas leakage in the taphole area during production is easily caused due to more gaps among the massive bricks.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a taphole structure for preventing gas leakage comprises a taphole on a blast furnace, an original mud bag in the furnace, a taphole channel communicated with the taphole, a taphole frame covering the taphole and a furnace shell part around the taphole frame, wherein the center of the taphole frame extends towards the side of a furnace cylinder to form the taphole channel;
an inclined through hole is preset in the center of the taphole channel and penetrates through the furnace shell.
Further, the taphole frame, the taphole channel and the original mud bag in the furnace are integrally cast by using nano silica sol and corundum silicon carbide as raw materials and utilizing a template.
Furthermore, the center and the periphery of the taphole frame are respectively provided with holes and welded with an access pipe for grouting.
Further, the diameter of the through hole is 70-120 mm, the inclined angle formed by the inclined through hole and the horizontal plane is alpha, and the angle of the alpha angle is 6-16 degrees.
Furthermore, the diameter of the access pipe is 50-60 mm.
Through the technical scheme, the utility model has the beneficial effects that:
1. the taphole frame, the taphole channel and the original mud drum in the furnace have simple structures, are convenient for site construction, have quick construction speed, stable quality and strong tightness, and can effectively prevent the gas leakage phenomenon.
2. The utility model discloses a after the construction, former mud package is monolithic to be pour in taphole frame, taphole passageway and the stove of blast furnace and takes shape and can form integratively, is favorable to shutoff and airtight.
Drawings
Fig. 1 is a schematic sectional view of a taphole structure for preventing gas leakage according to an embodiment of the utility model.
Fig. 2 is a schematic diagram of a taphole structure for preventing gas leakage according to an embodiment of the utility model after construction.
Fig. 3 is a schematic view of a tap hole for preventing gas leakage in the direction of P in fig. 1 according to an embodiment of the present invention.
Fig. 4 is a schematic distribution diagram of access pipes in a taphole structure for preventing gas leakage according to an embodiment of the utility model.
The reference numbers in the drawings are as follows:
1 is original mud package in the stove, 2 is the indisputable mouthful passageway, 3 is indisputable mouthful frame, 4 is the through-hole, 5 is the stove outer covering position, 6 is the access pipe.
Detailed Description
The utility model is further described with reference to the following figures and detailed description:
in the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "lateral", "vertical", etc. indicate orientations or positional relationships based on those shown in fig. 1 only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, a taphole structure for preventing gas leakage comprises a taphole on a blast furnace, an original mud bag 1 in the furnace, a taphole channel 2 communicated with the taphole, a taphole frame 3 covering the taphole and a furnace shell part 5 around the taphole frame 3, wherein the center of the taphole frame 3 extends towards the furnace cylinder side to form the taphole channel 2;
an inclined through hole 4 is preset in the center of the taphole channel 2, and the through hole 4 penetrates through the furnace shell part 5.
In this embodiment, the taphole frame 3, the taphole channel 2 and the original mud pack 1 in the furnace are integrally cast by using nano silica sol bonded corundum silicon carbide as raw materials and using a template.
In this embodiment, the center and the periphery of the taphole frame 3 are respectively perforated and welded with an access pipe 6 for grouting.
In this embodiment, the diameter of the through hole 4 is 70-120 mm, the inclined angle formed between the inclined through hole and the horizontal plane is alpha, and the angle of the alpha is 6-16 degrees.
In this embodiment, the diameter of the access pipe 6 is 50-60 mm.
The taphole frame 3, the taphole channel 2 and the original mud ladle 1 in the furnace have simple structures, and the nano silica sol bonded corundum silicon carbide is used as a raw material to be connected with pressure grouting equipment through the access pipe 6 to realize pressure grouting during construction, so that the nano silica sol bonded corundum silicon carbide can be quickly integrated at a continuous high temperature, the on-site construction is convenient, the construction speed is quick, the quality is stable, the airtightness is strong, and the phenomenon of gas leakage can be effectively prevented.
The above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, so that equivalent changes or modifications in the structure, features and principles described in the present invention should be included in the claims of the present invention.
Claims (5)
1. A taphole structure for preventing gas leakage comprises a taphole on a blast furnace, an original mud bag (1) in the furnace and a taphole channel (2) communicated with the taphole, and is characterized by also comprising a taphole frame (3) covering the taphole and a furnace shell part (5) around the taphole frame (3), wherein the center of the taphole frame (3) extends towards the side of a furnace cylinder to form the taphole channel (2);
an inclined through hole (4) is preset in the center of the taphole channel (2), and the through hole (4) penetrates through the furnace shell part (5).
2. The taphole structure for preventing gas leakage according to claim 1, wherein the taphole frame (3), the taphole channel (2) and the original mud pot (1) in the furnace are made of nano silica sol bonded corundum silicon carbide and are integrally cast by using a template.
3. The taphole structure for preventing gas leakage according to claim 2, characterized in that the taphole frame (3) is perforated and welded with grouting pipes (6) at the center and around the taphole frame.
4. The taphole structure for preventing gas leakage according to claim 1, wherein the diameter of the through hole (4) is 70-120 mm, the inclined angle of the through hole and the horizontal plane is α, and the angle of α is 6-16 °.
5. The taphole structure for preventing gas leakage according to claim 3, wherein the diameter of the access pipe (6) is 50-60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472066.2U CN215799669U (en) | 2021-06-30 | 2021-06-30 | Iron notch structure for preventing gas leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472066.2U CN215799669U (en) | 2021-06-30 | 2021-06-30 | Iron notch structure for preventing gas leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215799669U true CN215799669U (en) | 2022-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121472066.2U Active CN215799669U (en) | 2021-06-30 | 2021-06-30 | Iron notch structure for preventing gas leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215799669U (en) |
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2021
- 2021-06-30 CN CN202121472066.2U patent/CN215799669U/en active Active
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