CN104744053A - Anti-scouring tapping hole sleeve brick - Google Patents
Anti-scouring tapping hole sleeve brick Download PDFInfo
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- CN104744053A CN104744053A CN201310725363.7A CN201310725363A CN104744053A CN 104744053 A CN104744053 A CN 104744053A CN 201310725363 A CN201310725363 A CN 201310725363A CN 104744053 A CN104744053 A CN 104744053A
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- parts
- sleeve brick
- hole sleeve
- tap hole
- antiscour
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Abstract
The invention relates to an anti-scouring tapping hole sleeve brick, which comprises the following components by weight part: 50-65 parts of fused magnesia, 15-25 parts of corundum, 5-10 parts of magnesium aluminate spinel, 12-14 parts of graphite, 1-2 parts of high temperature asphalt, 1.5-3 parts of metal aluminium powder, 1-2 parts of resin-oatmeal, and 1-3 parts of binder. According to the invention, corundum is a high-grade aluminium raw material which has anti-scouring effect; and the added magnesium aluminate spinel is capable of increasing the high temperature intensity of sleeve brick. The sleeve brick has good anti-scouring and antioxidation effects under high temperature state, service life is greatly increased, and replacing frequency is shortened. The average service life can reach more than 300 heat.
Description
Technical field
The present invention relates to the improvement of a kind of antiscour tap hole sleeve brick formula, belong to technical field of refractory materials.
Background technology
Since financial crisis in 2008, the steel demand in the world significantly declines, and iron and steel enterprise is subject to serious impact, and price of steel product is lowered again and again.Cause steel mill's heavy losses.So under the test of severe situation, each steel mill all starts cost declining from production and administration.So, in raw material, the quality degradation of iron ore, smelting aspect, steel mill significantly reduces the add-on of lime, even reduce the class of lime, cause duration of blast long, even the decline of falling rate, the number of times carrying out a little blowing is excessive, cause peroxide phenomenon in stove serious, the serious work-ing life that have impact on tap hole.Moreover because high-quality and extraordinary steel grade demand get more and more, soft steel turnout also gets more and more, furnace lining and tap hole is caused to corrode too fast.So for this phenomenon, we are too low for the tap hole sleeve brick life-span, and anti-erosion is not studied with washing away.
The fast pace that cannot meet steel mill in the use procedure that general tap hole sleeve brick work-ing life makes steel at vanadium titanium is produced, and cause blowing out frequency excessive, regular replacing tap hole sleeve brick, have impact on steel-making rhythm.Common tap hole sleeve brick work-ing life is at 100-200(heat) between, be difficult to the requirement meeting some client 300 heats.
Summary of the invention
The object of this invention is to provide a kind of energy well antiscour, oxidation resistant tap hole sleeve brick.Situation is frequently changed in order to solve tap hole life-span too low, tap hole sleeve brick.
The object of the invention is to be achieved through the following technical solutions: a kind of antiscour tap hole sleeve brick, it is characterized in that, by following raw material, proportioning is made by weight:
Electrosmelted magnesite clinker 50 parts ~ 65 parts
15 parts ~ 25 parts, corundum
Magnesium-aluminium spinel 5 parts ~ 10 parts
12 parts ~ 14 parts, graphite
Hard pitch 1 part ~ 2 parts
Metallic aluminium powder 1.5 parts ~ 3 parts
Resin-oatmeal 1 part ~ 2 parts;
Bonding agent 1 part ~ 3 parts.
Described electrosmelted magnesite clinker granularity is≤5mm.
Corundum granularity is≤0.088mm.
Described magnesium-aluminium spinel granularity is 0.088 ~ 1mm.
Described resin-oatmeal granularity is≤0.088mm.
Described metallic aluminium powder is≤0.088mm.
Beneficial effect of the present invention: the present invention adopts such scheme, wherein corundum is high-grade aluminum raw material, plays antiscour effect; The magnesium-aluminium spinel added is the hot strength in order to improve sleeve brick; Technical scheme of the present invention, in the condition of high temperature, has good antiscour and antioxidant property, improves work-ing life greatly, shortens replacement frequency.
Embodiment
Embodiment 1:
A kind of antiscour tap hole sleeve brick, be made up by proportioning of following raw material:
Electrosmelted magnesite clinker 62kg
Corundum 15kg
Magnesium-aluminium spinel 5kg
Graphite 12kg
Hard pitch 2kg
Metallic aluminium powder 2kg
Resin-oatmeal 2kg.
Liquid resin (as bonding agent) 3kg
Embodiment 2:
A kind of antiscour tap hole sleeve brick, be made up by proportioning of following raw material:
Electrosmelted magnesite clinker 51kg
Corundum 20kg
Magnesium-aluminium spinel 10kg
Graphite 14kg
Hard pitch 2kg
Metallic aluminium powder 2kg
Resin-oatmeal 1kg
Liquid resin (as bonding agent) 2kg
Embodiment 3:
A kind of antiscour tap hole sleeve brick, be made up by proportioning of following raw material:
Electrosmelted magnesite clinker 57kg
Corundum 15kg
Magnesium-aluminium spinel 10kg
Graphite 12kg
Hard pitch 1kg
Metallic aluminium powder 3kg
Resin-oatmeal 2kg
Liquid resin (as bonding agent) 1kg
Antiscour tap hole sleeve brick described in above-described embodiment 1-3, its preparation technology's flow process is: to material chemical component detection-weigh batching--mix and blend-mechanical pressing-drying-bonding.
The selection of A, material and preparation:
Electrosmelted magnesite clinker: MgO content >=97.0% in electrosmelted magnesite clinker, granularity≤5mm; Electrosmelted magnesite clinker follows standard YB/T5266-2004, and the trade mark can be adopted to be the electrosmelted magnesite clinker of FM970, FM975, FM980, FM985, FM990.Chemical composition MgO, SiO2, CaO is detected during use; Testing requirement scope MgO: 97 ~ 99%; SiO2 < 1.5%, CaO < 1.5%; Granularity is by 3 ~ 5mm, 1 ~ 3mm, 0.088 ~ 1mm, 0.088mm processing.
Corundum: granularity is≤0.088mm.By weight percentage containing Al2O3 >=95%, SiO2 < 2.0%, surplus be Fe2O3, etc. impurity;
Magnesium-aluminium spinel: granularity is 0.088 ~ 1mm.By weight percentage containing Al2O3 >=30%, MgO >=60%;
Metallic aluminium powder granularity is≤0.088mm.Require Al >=98%;
Hard pitch: its softening temperature > 150 DEG C, carbon residue >=45%, toluene insolubles is 28%-34%, ash≤0.3%;
Graphite: require that carbon content is more than or equal to 94% by weight percentage.
The granularity of resin-oatmeal is≤0.088mm.
Liquid resin selected by bonding agent.
B, preparation process
Send batch mixing stirrer to by above-mentioned raw materials and carry out mix and blend, then mechanical pressing, carry out drying assembling.
Feedstock specifications requires as shown in table 1
Table 1
Through overtesting, the sample survey chemical index of three embodiments is as shown in table 2
Table 2
Three embodiment physical detection indexs are as shown in table 3
Table 3
Through onsite application life-span of test determination embodiment 1 at 310 to 350 times.Embodiment 2: the onsite application life-span is at 305 to 340 times.Embodiment 3: the onsite application life-span is at 300 to 340 times.
Claims (6)
1. an antiscour tap hole sleeve brick, is characterized in that, by following raw material, proportioning is made by weight:
Electrosmelted magnesite clinker 50 parts ~ 65 parts
15 parts ~ 25 parts, corundum
Magnesium-aluminium spinel 5 parts ~ 10 parts
12 parts ~ 14 parts, graphite
Hard pitch 1 part ~ 2 parts
Metallic aluminium powder 1.5 parts ~ 3 parts
Resin-oatmeal 1 part ~ 2 parts
Bonding agent 1 part ~ 3 parts.
2. a kind of antiscour tap hole sleeve brick according to claim 1, is characterized in that: described electrosmelted magnesite clinker granularity is≤5mm.
3. a kind of antiscour tap hole sleeve brick according to claim 1, is characterized in that: corundum granularity is≤0.088mm.
4. a kind of antiscour tap hole sleeve brick according to claim 1, is characterized in that: described magnesium-aluminium spinel granularity is 0.088 ~ 1mm.
5. a kind of antiscour tap hole sleeve brick according to claim 1, is characterized in that: described resin-oatmeal granularity is≤0.088mm.
6. a kind of antiscour tap hole sleeve brick according to claim 1, is characterized in that: described metallic aluminium powder is≤0.088mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725363.7A CN104744053A (en) | 2013-12-25 | 2013-12-25 | Anti-scouring tapping hole sleeve brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725363.7A CN104744053A (en) | 2013-12-25 | 2013-12-25 | Anti-scouring tapping hole sleeve brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104744053A true CN104744053A (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310725363.7A Pending CN104744053A (en) | 2013-12-25 | 2013-12-25 | Anti-scouring tapping hole sleeve brick |
Country Status (1)
| Country | Link |
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| CN (1) | CN104744053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418093A (en) * | 2015-11-27 | 2016-03-23 | 浙江湖州父子岭耐火集团有限公司 | High-performance brick cup |
| CN106242601A (en) * | 2016-08-09 | 2016-12-21 | 宿州市威菱耐火材料有限责任公司 | A kind of resistant to elevated temperatures tapping hole brick cup and preparation method |
| CN107365160A (en) * | 2017-07-05 | 2017-11-21 | 鞍山市和丰耐火材料有限公司 | It is a kind of quickly to go out steel smelting integral tap-hole casing brick and its production method |
Citations (4)
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|---|---|---|---|---|
| CN101333089A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
| CN102040387A (en) * | 2010-10-28 | 2011-05-04 | 首钢总公司 | Magnalium carbon refractory brick for improving quality of molten steel and prolonging service life of steel ladle and application method |
| CN102295464A (en) * | 2011-06-13 | 2011-12-28 | 武汉科技大学 | Carbon composite fireproof material and preparation method thereof |
| CN102757243A (en) * | 2011-04-28 | 2012-10-31 | 刘东夫 | Tubular brick coating mixture for tapping hole of converter |
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2013
- 2013-12-25 CN CN201310725363.7A patent/CN104744053A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333089A (en) * | 2008-08-06 | 2008-12-31 | 郑州振东耐磨材料有限公司 | Process for producing MgO-C Bricks by using waste MgO-C Bricks as main raw material |
| CN102040387A (en) * | 2010-10-28 | 2011-05-04 | 首钢总公司 | Magnalium carbon refractory brick for improving quality of molten steel and prolonging service life of steel ladle and application method |
| CN102757243A (en) * | 2011-04-28 | 2012-10-31 | 刘东夫 | Tubular brick coating mixture for tapping hole of converter |
| CN102295464A (en) * | 2011-06-13 | 2011-12-28 | 武汉科技大学 | Carbon composite fireproof material and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 关岩等: "复合石墨对低碳镁碳砖抗渣性能的影响", 《冶金能源》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418093A (en) * | 2015-11-27 | 2016-03-23 | 浙江湖州父子岭耐火集团有限公司 | High-performance brick cup |
| CN106242601A (en) * | 2016-08-09 | 2016-12-21 | 宿州市威菱耐火材料有限责任公司 | A kind of resistant to elevated temperatures tapping hole brick cup and preparation method |
| CN107365160A (en) * | 2017-07-05 | 2017-11-21 | 鞍山市和丰耐火材料有限公司 | It is a kind of quickly to go out steel smelting integral tap-hole casing brick and its production method |
| CN107365160B (en) * | 2017-07-05 | 2020-12-01 | 鞍山市和丰耐火材料有限公司 | Integral steel tapping hole casing brick for rapid steel tapping smelting and production method thereof |
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Application publication date: 20150701 |