CN202808863U - Spiral gap type air brick - Google Patents
Spiral gap type air brick Download PDFInfo
- Publication number
- CN202808863U CN202808863U CN 201220400599 CN201220400599U CN202808863U CN 202808863 U CN202808863 U CN 202808863U CN 201220400599 CN201220400599 CN 201220400599 CN 201220400599 U CN201220400599 U CN 201220400599U CN 202808863 U CN202808863 U CN 202808863U
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- CN
- China
- Prior art keywords
- air brick
- air
- main body
- brick
- road
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- Expired - Fee Related
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses an air brick applied to steel ladles in a metallurgical steel-making industry, and particularly discloses the air brick of which a ventilation gap channel is distributed in spiral gap form. The spiral gap type air brick is composed of an air brick main body, an air blowing pipe in the middle of the main body and a spiral gap type ventilation gap channel in the air brick main body, wherein the air brick main body is in the shape of a circular truncated cone, and comprises a big end and a small end, the air blowing pipe protrudes out of the big end of the air brick main body, and the spiral gap type ventilation gap channel can be clockwise or anticlockwise. The air brick is rational in design, the blow-off rate of the air brick is guaranteed, and the blown nitrogen or argon rotates in a certain rule; and the gas pressure is moderate, and vortex is generated, thus, the molten steel is stirred uniformly, the operation is safe and reliable, and the overall service life of the air brick can be prolonged.
Description
Technical field
The utility model relates to a kind of gas permeable brick that is applied on the metallurgical steel-making industry ladle, and especially relating to the louver road is the gas permeable brick that rotory seam type distributes.
Background technology
External refining is a kind of metallurgical technology that grows up nearly decades, will finish in the general smelting furnace degassed, get rid of be mingled with, a refining task such as adjusting component and temperature, part or almost all move to stove and carry out outward, mostly be to carry out refining in ladle, common external refining is ladle argon-blown, is blown into argon gas by the ladle bottom gas permeable brick, to the molten steel violent stirring, make the impurity come-up in the molten steel, even molten steel composition and temperature, the quality of raising steel.Traditional gas permeable brick louver road is straight, and the louver road is vertical from top to bottom, thereby causes the nitrogen or the argon pressure that blow out excessive, molten steel stirs inhomogeneous, and discharge impurity is few, simultaneously, molten steel can permeate in gas permeable brick along straight-through air cleft road, causes badly bleeding or bleed-out accident.
The utility model content
The utility model solves its technical problem and provides the gas permeable brick that a kind of louver road is the rotory seam type distribution, it has changed the distribution in louver road in traditional gas permeable brick structure, be rotory seam type louver road, and from the angle of mechanics, new rotory seam type louver road reasonable in design, it is that rotation is regular that the through-blowing rate that has not only guaranteed gas permeable brick can make again the nitrogen or the argon gas that blow out effectively, gaseous tension is also moderate, and generation eddy current, molten steel is stirred evenly, discharge impurity is many, and operational safety is reliable, and can prolong the work-ing life of gas permeable brick integral body.
In order to solve the problems of the technologies described above, the utility model is comprised of the rotory seam type louver road in gas blow pipe and the air brick body in the middle of by air brick body, body, it is round table-like that air brick body is, be divided into large and small head, gas blow pipe protrudes from the major part of air brick body, rotory seam type louver road is clockwise direction or counter clockwise direction, and the distance between the louver road is between 8-10mm.The louver road is densely distributed and even, abundant gas passage can be set to guarantee that refining process is to the requirement of gas flow in the limited bulk of gas permeable brick.
The performance index of this gas permeable brick are: volume density 4.15-4.3g/cm
3, cold crushing strength Mpa 〉=90, refractoriness under load 〉=1670 ℃.
In use, whether molten steel stirs even, and it is many and all relevant with factors such as the wind-force of the through-blowing rate of gas permeable brick and Argon, time, number of times less to discharge impurity.The beneficial effects of the utility model are because direct-firing louver road is changed into rotory seam type louver road, gaseous tension is moderate, and generation eddy current, molten steel is stirred evenly, and discharge impurity is many, and at high temperature gas permeable brick structural distortion can not occur, thereby guarantee not destroy integrally-built integrity, can reduce so at high temperature that crackle appears in gas permeable brick, can avoid also by this design that molten steel flows into along the louver road under the high temperature, badly bleeding or bleed-out accident occur.Therefore the utility model gas permeable brick is energy-saving and cost-reducing product innovation of a kind of high life, and reasonable in design has good thermostability, scour resistance, permeability resistance, and through-blowing rate, operational safety are reliable, and can prolong the work-ing life of gas permeable brick integral body.
Description of drawings
Below in conjunction with the drawings and specific embodiments to further detailed explanation of the utility model.
Fig. 1 is the cross-sectional schematic of gas permeable brick.
Fig. 2 is the clockwise schematic top plan view in air brick body rotory seam type louver road.
Fig. 3 is the counterclockwise schematic top plan view in air brick body rotory seam type louver road.
Embodiment
The utility model is comprised of the rotory seam type louver road 5 in gas blow pipe 2 and the air brick body in the middle of by air brick body 1, body, it is round table-like that air brick body is, be divided into major part 3, microcephaly 4, gas blow pipe protrudes from the major part 3 of air brick body, rotory seam type louver road can be clockwise or counterclockwise, the distance between the louver road is between 8-10mm.
When gas permeable brick was installed, gas permeable brick was inserted in the brick cup, and the gas permeable brick circumferential surface is smeared the thick mud of 10mm, then injects rapidly in the brick cup, made it to seal tight, and the little head surface of gas permeable brick is should be as far as possible concordant with bag end liner brick working face.More with over etching such as brick cup, install gas permeable brick again with the fire-resistance rammed mass one deck of tiing a knot, make working face concordant, to increase the service life.
Claims (3)
1. Rotory seam type air ventilation brick is characterized in that: by being comprised of the rotory seam type louver road in gas blow pipe and the air brick body in the middle of air brick body, the body, it is round table-like that air brick body is, and is divided into large and small head, and gas blow pipe protrudes from the major part of air brick body.
2. Rotory seam type air ventilation brick according to claim 1 is characterized in that: rotory seam type louver road is clockwise direction or counterclockwise.
3. Rotory seam type air ventilation brick according to claim 1, it is characterized in that: the distance between the louver road is between 8-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400599 CN202808863U (en) | 2012-08-08 | 2012-08-08 | Spiral gap type air brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400599 CN202808863U (en) | 2012-08-08 | 2012-08-08 | Spiral gap type air brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808863U true CN202808863U (en) | 2013-03-20 |
Family
ID=47867778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400599 Expired - Fee Related CN202808863U (en) | 2012-08-08 | 2012-08-08 | Spiral gap type air brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808863U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455134A (en) * | 2020-06-10 | 2020-07-28 | 北京联合荣大工程材料股份有限公司 | Ladle and ventilating device for bottom blowing of ladle |
| CN111534664A (en) * | 2020-06-10 | 2020-08-14 | 北京联合荣大工程材料股份有限公司 | Ladle and ventilating device for bottom blowing of ladle |
| CN114309565A (en) * | 2022-01-08 | 2022-04-12 | 濮阳濮耐高温材料（集团）股份有限公司 | Fluid stirring and purifying element with arc air passage |
-
2012
- 2012-08-08 CN CN 201220400599 patent/CN202808863U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455134A (en) * | 2020-06-10 | 2020-07-28 | 北京联合荣大工程材料股份有限公司 | Ladle and ventilating device for bottom blowing of ladle |
| CN111534664A (en) * | 2020-06-10 | 2020-08-14 | 北京联合荣大工程材料股份有限公司 | Ladle and ventilating device for bottom blowing of ladle |
| CN114309565A (en) * | 2022-01-08 | 2022-04-12 | 濮阳濮耐高温材料（集团）股份有限公司 | Fluid stirring and purifying element with arc air passage |
| CN114309565B (en) * | 2022-01-08 | 2024-04-05 | 濮阳濮耐高温材料（集团）股份有限公司 | Fluid stirring purifying element with circular arc air flue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130808 |