CN214115611U - Device capable of replacing gas supply protection system for converter bottom - Google Patents
Device capable of replacing gas supply protection system for converter bottom Download PDFInfo
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- CN214115611U CN214115611U CN202023300548.8U CN202023300548U CN214115611U CN 214115611 U CN214115611 U CN 214115611U CN 202023300548 U CN202023300548 U CN 202023300548U CN 214115611 U CN214115611 U CN 214115611U
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- brick
- air supply
- gas supply
- converter
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Abstract
The utility model discloses a device of a replaceable gas supply protection system for a converter bottom, which comprises a converter bottom, wherein the converter bottom comprises a bottom fixed brick layer, a center brick is arranged above the bottom fixed brick layer, bottom bricks arranged by taking the center brick as a circle center are arranged around the center brick, the converter bottom also comprises a gas supply protective brick, the center of the gas supply protective brick is provided with a first through hole, a gas supply core is arranged in the first through hole, a gas supply brick seat is arranged below the gas supply protective brick, the gas supply brick seat is positioned in the bottom fixed brick layer, and a second through hole is arranged at the center of the gas supply brick seat; and a gas supply element is also arranged below the gas supply brick cup. The utility model discloses can realize converter steelmaking full-service end-blown gas supply, can change under hot working state, change the process quick, the hot dead time of converter is short, improves converter smelting efficiency and steel quality to solve the problem that exists among the prior art.
Description
Technical Field
The utility model relates to a converter refractory masonry structure technical field especially relates to a converter stove is with removable air feed protection system's device.
Background
At present, the converter steelmaking process is energy-saving and efficient, improves the quality of steel and produces high-quality pure steel, and a gas supply stirring system is adopted at the bottom of the converter. The service life and the service life of the gas supply element directly influence the thermotechnical production efficiency and the steel composition and performance; the working environment of the gas supply element is very harsh, thermal shock in the smelting process, impact in the molten iron adding process, cold and hot influences before and after molten iron is added, scouring in top and bottom combined blowing operation and the like all influence the service life of the gas supply element, and the gas supply element is abandoned midway in the converter smelting process due to various reasons, so that the converter steelmaking efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
In order to compensate the deficiency of the prior art, the utility model provides a converter stove is stove bottom with removable air feed protection system's device can realize converter steelmaking whole stove labour end-blown gas supply, can change under thermal working state, change the process quick, and the hot dead time of converter is short, improves converter smelting efficiency and steel quality to solve the problem that exists among the prior art.
The utility model discloses a realize through following technical scheme: the device capable of replacing the gas supply protection system for the converter bottom comprises the converter bottom, wherein the converter bottom is circular and comprises a bottom fixing brick layer, a central brick is arranged above the bottom fixing brick layer, furnace bottom bricks which are arranged by taking the central brick as a circle center are arranged around the central brick, and the cross section of each furnace bottom brick is sector trapezoidal;
the converter bottom also comprises an air supply protective brick, a first through hole is formed in the center of the air supply protective brick, the air supply protective brick is a trapezoidal wedge-shaped brick, and the trapezoid of the air supply protective brick is consistent with the trapezoid of a sector, the center of which is the center of the center brick of the converter bottom, at the corresponding position of the trapezoid; an air supply core is arranged in the first through hole, an air supply brick cup is arranged below the air supply protective brick, the air supply brick cup is positioned in the furnace bottom fixing brick layer, and a second through hole is formed in the center of the air supply brick cup;
an air supply element is arranged below the air supply brick cup;
the furnace bottom brick, the gas supply protective brick and the gas supply brick cup are arranged into a circle by taking the center brick as the center, and the circle is consistent with the circle of the converter bottom.
Further optimally, the height of the gas supply protective brick is greater than the height of the corresponding hearth brick by 50-100 mm.
Further optimally, the inner diameter of the first through hole is 90-150 mm.
Further optimally, the cross section of the air supply brick cup is square, and the side length of the square is 300-500 mm.
Further optimally, the inner diameter of the second through hole is 1-2 mm larger than that of the first through hole, and the center lines of the second through hole and the first through hole are positioned on the same straight line and intersect with the center of the central brick.
Further optimally, the air supply core is a cylindrical brick, the outer diameter of the air supply core is smaller than the diameter of the first through hole by 1-2 mm, and the inner diameter of the air supply core is 20-30 mm.
Further optimally, the inner diameter of one end, close to the center of the central brick, of the air supply core is smaller than the inner diameter of the other end of the air supply core by 1-2 mm.
Preferably, the length of the air supply core is the sum of the height of the air supply protective brick and the height of the air supply seat brick.
Further optimally, the height of the gas supply brick cup is equal to that of the furnace bottom fixed brick layer.
Further optimally, the air supply element is an air supply gun, and the inner diameter of the air supply gun is smaller than the inner diameter of the air supply core by 1-2 mm.
The utility model has the advantages that:
the utility model discloses be equipped with the air feed and protect the brick, air feed brick cup and air feed core, the air feed component uses when the certain degree needs to be changed, clear away the outside air feed component protection of converter stove bottom with refractory material, bore the air feed core brick of getting in the brick is protected to the air feed of converter stove bottom with the drilling machine, renew air feed core and air feed component, install outer end air feed component protective material again, accomplish the air feed component change promptly, can realize converter steelmaking full-service-life end-blown air feed, can change under hot working state, the change process is quick, hot downtime of converter is short, improve converter smelting efficiency and steel quality, be suitable for extensive popularization and application.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a cross-sectional structure of the air supply brick of the present invention.
Fig. 3 is a schematic structural diagram of the air supply brick protecting of the present invention.
In the figure, 1, the converter bottom; 2. fixing a brick layer at the bottom of the furnace; 3. a central brick; 4. a hearth brick; 5. supplying gas to protect bricks; 51. a first through hole; 6. an air supply core; 7. air supply brick cup; 71. a second through hole; 8. and a gas supply element.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
As shown in fig. 1-3, the present embodiment discloses a device of a replaceable gas supply protection system for a converter bottom, which includes a converter bottom 1, the cross section of the converter bottom 1 is circular, the converter bottom 1 includes a bottom fixing brick layer 2, a central brick 3 is disposed above the bottom fixing brick layer 2, bottom bricks 4 arranged around the central brick 3 and using the central brick 3 as a circle center are disposed, and the cross section of the bottom bricks 4 is a sector trapezoid;
the converter bottom 1 further comprises a gas supply protective brick 5, a first through hole 51 is formed in the center of the gas supply protective brick 5, the gas supply protective brick 5 is a trapezoidal wedge-shaped brick, and the trapezoid of the gas supply protective brick 5 is consistent with the trapezoid of a sector, wherein the corresponding position of the trapezoid uses the center of the center brick of the converter bottom as the center of a circle; an air supply core 6 is arranged in the first through hole, an air supply brick cup 7 is arranged below the air supply protective brick 5, the air supply brick cup 7 is positioned in the furnace bottom fixed brick layer 2, and a second through hole 71 is arranged in the center of the air supply brick cup 7;
an air supply element 8 is also arranged below the air supply brick cup 7;
the furnace bottom brick 4, the gas supply protective brick 5 and the gas supply brick cup 7 are arranged into a spherical shape by taking the central brick as a center, and the spherical shape is consistent with the spherical shape of the converter bottom 1.
In a preferred embodiment, the height of the gas supply protection brick 5 is 50-100 mm greater than the height of the corresponding hearth brick 4.
In a preferred embodiment, the inner diameter of the first through hole 51 is 90 to 150 mm.
In a preferred embodiment, the cross section of the gas supply brick cup 7 is square, and the side length of the square is 300-500 mm.
In a preferred embodiment, the inner diameter of the second through hole 71 is 1 to 2mm larger than the inner diameter of the first through hole 51, and the second through hole 71 is located on the same straight line as the center line of the first through hole 51 and intersects with the center of the center block.
As a preferred embodiment, the air supply core 6 is a cylindrical brick, the outer diameter of the air supply core 6 is smaller than the diameter of the first through hole by 1-2 mm, and the inner diameter of the air supply core is 20-30 mm.
In a preferred embodiment, the inner diameter of one end of the air supply core 6 close to the center of the central brick 3 is 1-2 mm smaller than the inner diameter of the other end of the air supply core 6.
In a preferred embodiment, the length of the gas supply core 6 is the sum of the height of the gas supply guard brick 5 and the height of the gas supply brick cup 7.
In a preferred embodiment, the height of the gas supply brick cup 7 is equal to the height of the furnace bottom fixing brick layer 2.
As a preferred embodiment, the air supply element 8 is an air supply gun, and the inner diameter of the air supply gun is 1-2 mm smaller than that of the air supply core 6.
The working principle of the utility model is as follows:
when the utility model is constructed, the air supply brick cup is placed at the reserved hole of the air supply element at the bottom of the converter according to the number of the designed air supply elements of the converter, is placed stably, and the center of the round hole is superposed with the center of the reserved hole, so as to build a fixed brick layer at the bottom of the converter; when the converter bottom brick is built, the gas supply protecting brick is placed on the gas supply brick cup, the trapezoidal direction of the upper surface and the lower surface of the gas supply protecting brick is consistent with the trapezoidal direction of a sector with the center of the central brick as the center of a circle, the center line of the inner circular hole is on the same line with the center of the gas supply brick cup and the center of a preformed hole of a gas supply element of the converter bottom, the center line is a radius line of the converter bottom of the spherical converter, and the building of the converter bottom brick is completed after the position is fixed. After the refractory lining of the converter is completely built, installing an air supply core and an air supply element from the bottom outside the converter, and testing and using a converter bottom replaceable air supply system according to the using flow after the building of the converter is completed;
when the gas supply element is used to a certain extent and needs to be replaced, the refractory material for protecting the gas supply element outside the converter bottom is removed, the gas supply core brick in the gas supply protective brick at the converter bottom is drilled by a drilling machine, a new gas supply core and the gas supply element are replaced, and the protective material for the gas supply element at the outer end is installed again, so that the replacement of the gas supply element is completed.
The parts of the present invention not described in detail are the known techniques of those skilled in the art. Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (10)
1. The utility model provides a converter stove bottom is with removable air feed protection system's device which characterized in that: the converter comprises a converter bottom, wherein the cross section of the converter bottom is circular, the converter bottom comprises a bottom fixing brick layer, a central brick is arranged above the bottom fixing brick layer, furnace bottom bricks which are arranged by taking the central brick as the circle center are arranged around the central brick, and the cross section of the furnace bottom bricks is sector trapezoid;
the converter bottom also comprises an air supply protective brick, a first through hole is formed in the center of the air supply protective brick, the air supply protective brick is a trapezoidal wedge-shaped brick, and the trapezoid of the air supply protective brick is consistent with the trapezoid of a sector, the center of which is the center of the center brick of the converter bottom, at the corresponding position of the trapezoid; an air supply core is arranged in the first through hole, an air supply brick cup is arranged below the air supply protective brick, the air supply brick cup is positioned in the furnace bottom fixing brick layer, and a second through hole is formed in the center of the air supply brick cup;
an air supply element is arranged below the air supply brick cup;
the furnace bottom brick, the gas supply protective brick and the gas supply seat brick are arranged into a spherical shape by taking the central brick as a center, and the spherical shape is consistent with the spherical shape of the converter bottom.
2. The apparatus of a replaceable gas supply protection system for a converter bottom of claim 1, wherein: the height of the gas supply protective brick is greater than the height of the corresponding hearth brick by 50-100 mm.
3. The apparatus of a replaceable gas supply protection system for a converter bottom of claim 1, wherein: the inner diameter of the first through hole is 90-150 mm.
4. The apparatus of a replaceable gas supply protection system for a converter bottom of claim 1, wherein: the cross section of the air supply brick cup is square, and the side length of the square is 300-500 mm.
5. The apparatus of a replaceable gas supply protection system for a converter bottom of claim 3, wherein: the inner diameter of the second through hole is 1-2 mm larger than that of the first through hole, and the center lines of the second through hole and the first through hole are located on the same straight line and intersected with the center of the central brick.
6. The apparatus of a replaceable gas supply protection system for a converter bottom of claim 1, wherein: the air supply core is a cylindrical brick, the outer diameter of the air supply core is smaller than the diameter of the first through hole by 1-2 mm, and the inner diameter of the air supply core is 20-30 mm.
7. The apparatus for a replaceable gas supply protection system for a converter bottom according to claim 6, wherein: the inner diameter of one end of the air supply core, which is close to the center of the central brick, is smaller than the inner diameter of the other end of the air supply core, which is 1-2 mm.
8. The apparatus for a replaceable gas supply protection system for a converter bottom according to claim 7, wherein: the length of the air supply core is the sum of the height of the air supply protective brick and the height of the air supply seat brick.
9. The apparatus of a replaceable gas supply protection system for a converter bottom of claim 1, wherein: the height of the gas supply brick cup is equal to that of the furnace bottom fixed brick layer.
10. The apparatus of a replaceable gas supply protection system for a converter bottom of claim 1, wherein: the air supply element is an air supply gun, and the inner diameter of the air supply gun is smaller than that of the air supply core by 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023300548.8U CN214115611U (en) | 2020-12-31 | 2020-12-31 | Device capable of replacing gas supply protection system for converter bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023300548.8U CN214115611U (en) | 2020-12-31 | 2020-12-31 | Device capable of replacing gas supply protection system for converter bottom |
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| Publication Number | Publication Date |
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| CN214115611U true CN214115611U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023300548.8U Active CN214115611U (en) | 2020-12-31 | 2020-12-31 | Device capable of replacing gas supply protection system for converter bottom |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537492A (en) * | 2022-09-20 | 2022-12-30 | 钢铁研究总院有限公司 | Converter bottom blowing protection brick and converter slag splashing protection method |
-
2020
- 2020-12-31 CN CN202023300548.8U patent/CN214115611U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537492A (en) * | 2022-09-20 | 2022-12-30 | 钢铁研究总院有限公司 | Converter bottom blowing protection brick and converter slag splashing protection method |
| CN115537492B (en) * | 2022-09-20 | 2023-08-25 | 钢铁研究总院有限公司 | Converter bottom blowing protection brick and converter slag splashing protection method |
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