CN104195292A - Air brick with safety warning sign and preparation method of air brick - Google Patents
Air brick with safety warning sign and preparation method of air brick Download PDFInfo
- Publication number
- CN104195292A CN104195292A CN201410384920.8A CN201410384920A CN104195292A CN 104195292 A CN104195292 A CN 104195292A CN 201410384920 A CN201410384920 A CN 201410384920A CN 104195292 A CN104195292 A CN 104195292A
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- gas permeable
- permeable brick
- main body
- home block
- brick main
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Abstract
The invention discloses an air brick with a safety warning sign and a preparation method of the air brick. The air brick comprises an air brick main body, wherein an air chamber is formed in the bottom of the air brick main body, and an argon blowing pipe is communicated with the lower side of the air chamber; a shell is arranged outside the air brick main body and the air chamber. The air brick is characterized in that an identification block made of a silicon carbide ceramic material is arranged at the bottom inside the air brick main body; the bottom surface of the identification block and the bottom surface of the air brick main body are positioned in the same plane. The preparation method comprises the following steps: preparing an identification block before molding the air brick main body; selecting a silicon carbide ceramic material sintered at normal temperature to prepare the identification block; inserting the prepared identification block into the air brick main body from the bottom of the air brick main body in the process of molding the air brick main body, wherein one end, in which the air chamber is formed, of the air brick main body is marked as a bottom end; and allowing the bottom surface of the identification block and the bottom surface of the air brick to be positioned on the same plane. The air brick is difficult to erode or ablate when meeting high temperature or molten steel and is high in using safety coefficient.
Description
Technical field
The present invention's invention relates to a kind of gas permeable brick and preparation method with safety warning sign, particularly a kind of gas permeable brick and preparation method with the safety warning sign that corrosion-resistant property is high.
Background technology
Ladle bottom blowing technology just started in France, Japan and other countries application as far back as the eighties in last century.And bottom-blown air brick is produce along with the development of process for making, adjust and improve.Utilize gas permeable brick to the stirring of inert gas molten steel of jetting in steelmaking container, to reduce the molten steel purifying time, improve molten steel purity, become modern metallurgical important means.The development of steel industry and the increase gradually to special steel material demand, progressively worsen and harshness the applying working condition condition of gas permeable brick.Air brick of steel ladle is as the functional element of external refining key, and its effect is extremely important, and can its result of use directly have influence on refining operation and implement safely smoothly.The different steps of air brick of steel ladle in whole ladle turn around time can produce different physics and chemistries and corrode, its damage mechanism mainly comprises that the slagging of retractory, molten steel wash away, high temperature burns oxygen cleaning and thermal shock fatigue or peels off, when residual brick is less than certain thickness, need to stop using, otherwise can wear bag bleed-out phenomenon.So in steelmaking process, will pay special attention to the behaviour in service of gas permeable brick, in order to avoid cause industrial accident.And field personnel judges that gas permeable brick service condition topmost foundation except dependence skilled worker's experience is exactly the secure ID being arranged in gas permeable brick brick core.
The safety warning of gas permeable brick sign making method and material category are a lot of at present, mainly in gas permeable brick, to place special material, such as prefabricated attribute block, burning lost article, stainless steel etc., its shortcoming is that corrosion-resistant property is poor, after running into high temperature or molten steel, be easily etched or ablation, accelerate to a certain extent the erosion rate of gas permeable brick, can produce in use certain potential safety hazard to gas permeable brick simultaneously.
Summary of the invention
The shortcoming existing in order to overcome above-mentioned prior art, the object of the present invention is to provide a kind of gas permeable brick with safety warning sign, is difficult for occurring to corrode or ablation after chance high temperature or molten steel, uses safety coefficient high.
In order to address the above problem, the present invention by the following technical solutions: a kind of gas permeable brick with safety warning sign, comprise gas permeable brick main body, the bottom of gas permeable brick main body is provided with air chamber, air chamber below is communicated with Argon pipe; At the gentle outdoor shell that is provided with of described gas permeable brick main body; It is characterized in that: the home block of being made by thyrite in the setting of gas permeable brick main body inner bottom part; And the bottom surface of the bottom surface of described home block and gas permeable brick main body is positioned at same plane.
As further technical scheme: described home block is made as the rotator that bus is straight line.
Further: the axis of the axis of rotator and described gas permeable brick main body is parallel or be located along the same line.
Preferred: described home block is right cylinder.
Further: described home block is provided with one, be highly 100-150mm, diameter is 10-40mm.
Preferred: the height of described home block is 100mm, diameter is 10mm.
Another preferred scheme: the height of described home block is 150mm, diameter is 40mm.
Another preferred scheme: the height of described home block is 120mm, diameter is 26mm.
As the further technical scheme of another kind: described home block can also be prism-shaped, and the incline of prism is parallel with the axis of gas permeable brick main body, and the base area of prism is 80-1600mm
2.
The present invention also provides a kind of preparation method of the gas permeable brick with safety warning sign, comprises gas permeable brick main body forming step, it is characterized in that:
Before the moulding of described gas permeable brick main body, also comprise the step of preparing home block; Described home block is selected normal pressure-sintered thyrite, and the physicochemical property of the thyrite of selecting is SiC > 98%, volume density > 3.08g/cm
3, ultimate compression strength > 3900Mpa, thermal expansivity < 4 * 10
-61/
0in k, air, maximum operation (service) temperature > is 1600 ℃;
The home block of making is for being highly the right cylinder that 100-150mm, diameter are 10-40mm;
When the moulding of gas permeable brick main body, the home block preparing to be inserted in gas permeable brick main body by the bottom surface of gas permeable brick main body, one end that gas permeable brick main body arranges air chamber is designated as bottom; And make the bottom surface of home block and the bottom surface of gas permeable brick in the same plane.
The invention has the beneficial effects as follows: in this invention, the home block of gas permeable brick is high temperature resistant, corrosion-resistant property is high, the coefficient of expansion is little, what be combined with gas permeable brick is very tight, has eliminated the problem of wearing bag bleed-out in gas permeable brick use procedure, thereby has improved the use safety coefficient of gas permeable brick; In addition different from the brightness color of gas permeable brick under the sign condition of high temperature of warning of this gas permeable brick, warn obviously, can well point out field personnel, make workman can easily judge that gas permeable brick is used terminal.
Accompanying drawing explanation
Fig. 1 is the structural representation of gas permeable brick embodiment in the present invention;
In figure: 1 shell, 2 air chambers, 3 gas permeable brick main bodys, 4 home blocks, 5 Argon pipes.
Embodiment
Below in conjunction with specific embodiment, the gas permeable brick of a kind of Novel belt safety warning sign of the present invention is elaborated.
In following description, " end ", " top ", " on ", D score is all the relative position relations that adopt for convenience of description, can not be interpreted as the restriction to protection domain as absolute location.
A kind of gas permeable brick with safety warning sign as shown in Figure 1, comprises gas permeable brick main body 3, and the bottom of gas permeable brick main body 3 is provided with air chamber 2, and air chamber 2 belows are communicated with Argon pipe 5; In described gas permeable brick main body 3 and air chamber 2, be outside equipped with shell 1.The special feature of this gas permeable brick is: the home block 4 of being made by thyrite in the 3 inner bottom part settings of gas permeable brick main body; And the bottom surface of the bottom surface of described home block 4 and gas permeable brick main body 3 is positioned at same plane.This home block 4 is obviously different from brightness, the color of gas permeable brick main body 3 under hot conditions.Thyrite is existing known materials.
The home block 4 adopting in the present embodiment for bus be the rotator of straight line, and the axis of the axis of rotator and described gas permeable brick main body 3 is located along the same line.
Specifically, the home block in the present embodiment 4 is right cylinder.And this home block 4 is provided with one, be highly 100-150mm, diameter is 10-40mm.On this basis, preferred: the height of described home block 4 is 100mm, and diameter is 10mm.Another preferred scheme: the height of described home block 4 is 150mm, diameter is 40mm.Preferred scheme also: the height of described home block 4 is 120mm, and diameter is 26mm.
The preparation method of above-mentioned gas permeable brick, comprises the forming step of gas permeable brick main body 3, and this preparation method's special feature is:
Before described gas permeable brick main body 3 moulding, also comprise the step of preparing home block 4; Described home block 4 is selected normal pressure-sintered thyrite, and the physicochemical property of the thyrite of selecting is SiC > 98%, volume density > 3.08g/cm
3, ultimate compression strength > 3900Mpa, thermal expansivity < 4 * 10
-61/
0in k, air, maximum operation (service) temperature > is 1600 ℃;
The home block 4 of making is for being highly the right cylinder that 100-150mm, diameter are 10-40mm;
When 3 moulding of gas permeable brick main body, the home block preparing 4 to be inserted in gas permeable brick main body 3 by the bottom surface of gas permeable brick main body 3, one end that gas permeable brick main body arranges air chamber 2 is designated as bottom; And make the bottom surface of home block 4 and the bottom surface of gas permeable brick 3 in the same plane.
At the scene when gas permeable brick uses the position of home block 4, due to the cleaning that is subject to high temperature and burns oxygen, it is obviously different that the brightness color of home block 4 and the brightness color of gas permeable brick main body 3 around have, and at this moment staff will change gas permeable brick in time, thereby guarantee production safety.
Gas permeable brick is not limited only to above-described embodiment, and as other embodiments of gas permeable brick, the home block in gas permeable brick can also be prism-shaped, and the incline of prism is parallel with the axis of gas permeable brick main body, and the base area of prism is 80-1600mm
2.
Claims (10)
1. with a gas permeable brick for safety warning sign, comprise gas permeable brick main body, the bottom of gas permeable brick main body is provided with air chamber, and air chamber below is communicated with Argon pipe; At the gentle outdoor shell that is provided with of described gas permeable brick main body; It is characterized in that: the home block of being made by thyrite in the setting of gas permeable brick main body inner bottom part; And the bottom surface of the bottom surface of described home block and gas permeable brick main body is positioned at same plane.
2. a kind of gas permeable brick with safety warning sign according to claim 1, is characterized in that: described home block is rotator, and the bus of rotator is straight line.
3. a kind of gas permeable brick with safety warning sign according to claim 2, is characterized in that: the axis of the axis of rotator and described gas permeable brick main body is parallel or be located along the same line.
4. a kind of gas permeable brick with safety warning sign according to claim 3, is characterized in that: described home block is right cylinder.
5. a kind of gas permeable brick with safety warning sign according to claim 4, is characterized in that: described home block is provided with one, is highly 100-150mm, and diameter is 10-40mm.
6. a kind of gas permeable brick with safety warning sign according to claim 5, is characterized in that: the height of described home block is 100mm, and diameter is 10mm.
7. a kind of gas permeable brick with safety warning sign according to claim 5, is characterized in that: the height of described home block is 150mm, and diameter is 40mm.
8. a kind of gas permeable brick with safety warning sign according to claim 5, is characterized in that: the height of described home block is 120mm, and diameter is 26mm.
9. a kind of gas permeable brick with safety warning sign according to claim 1, is characterized in that: described home block is prism-shaped, and the incline of prism is parallel with the axis of gas permeable brick main body, and the base area of prism is 80-1600mm
2.
10. a preparation method for the gas permeable brick identifying with safety warning, comprises gas permeable brick main body forming step, it is characterized in that:
Before the moulding of described gas permeable brick main body, also comprise the step of preparing home block; Described home block is selected normal pressure-sintered thyrite, and the physicochemical property of the thyrite of selecting is SiC > 98%, volume density > 3.08g/cm
3, ultimate compression strength > 3900Mpa, thermal expansivity < 4 * 10
-61/
0in k, air, maximum operation (service) temperature > is 1600 ℃;
The home block of making is for being highly the right cylinder that 100-150mm, diameter are 10-40mm;
When the moulding of gas permeable brick main body, the home block preparing to be inserted in gas permeable brick main body by the bottom surface of gas permeable brick main body, one end that gas permeable brick main body arranges air chamber is designated as bottom; And make the bottom surface of home block and the bottom surface of gas permeable brick in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384920.8A CN104195292A (en) | 2014-08-06 | 2014-08-06 | Air brick with safety warning sign and preparation method of air brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384920.8A CN104195292A (en) | 2014-08-06 | 2014-08-06 | Air brick with safety warning sign and preparation method of air brick |
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| CN104195292A true CN104195292A (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410384920.8A Pending CN104195292A (en) | 2014-08-06 | 2014-08-06 | Air brick with safety warning sign and preparation method of air brick |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233800Y (en) * | 1994-11-09 | 1996-08-28 | 武汉钢铁(集团)公司 | Air brick with alarm function |
| CN201960123U (en) * | 2011-02-21 | 2011-09-07 | 成都府天新材料科技有限公司 | Air-permeable brick with safety warning function |
| CN202039088U (en) * | 2011-03-16 | 2011-11-16 | 中钢集团洛阳耐火材料研究院有限公司 | Air brick with warning mark |
| CN202539551U (en) * | 2012-04-27 | 2012-11-21 | 成都府天新材料科技有限公司 | Air brick with safety warning |
| CN202936438U (en) * | 2012-09-24 | 2013-05-15 | 洛阳利尔耐火材料有限公司 | Safety-type bottom-blowing air brick |
| CN203253914U (en) * | 2013-05-17 | 2013-10-30 | 营口欣立耐材科技有限公司 | Nanometer type ladle air brick |
| CN204298420U (en) * | 2014-08-06 | 2015-04-29 | 济南鲁东耐火材料有限公司 | A kind of air brick with safety warning mark |
-
2014
- 2014-08-06 CN CN201410384920.8A patent/CN104195292A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233800Y (en) * | 1994-11-09 | 1996-08-28 | 武汉钢铁(集团)公司 | Air brick with alarm function |
| CN201960123U (en) * | 2011-02-21 | 2011-09-07 | 成都府天新材料科技有限公司 | Air-permeable brick with safety warning function |
| CN202039088U (en) * | 2011-03-16 | 2011-11-16 | 中钢集团洛阳耐火材料研究院有限公司 | Air brick with warning mark |
| CN202539551U (en) * | 2012-04-27 | 2012-11-21 | 成都府天新材料科技有限公司 | Air brick with safety warning |
| CN202936438U (en) * | 2012-09-24 | 2013-05-15 | 洛阳利尔耐火材料有限公司 | Safety-type bottom-blowing air brick |
| CN203253914U (en) * | 2013-05-17 | 2013-10-30 | 营口欣立耐材科技有限公司 | Nanometer type ladle air brick |
| CN204298420U (en) * | 2014-08-06 | 2015-04-29 | 济南鲁东耐火材料有限公司 | A kind of air brick with safety warning mark |
Non-Patent Citations (1)
| Title |
|---|
| 杨双平: "《冶金炉料处理工艺》", 30 April 2008, 冶金工业出版社 * |
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Application publication date: 20141210 |