CN101870590A - Composite anhydrous indentation sealing material for blast-furnace hot blast stove - Google Patents
Composite anhydrous indentation sealing material for blast-furnace hot blast stove Download PDFInfo
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- CN101870590A CN101870590A CN201010179045A CN201010179045A CN101870590A CN 101870590 A CN101870590 A CN 101870590A CN 201010179045 A CN201010179045 A CN 201010179045A CN 201010179045 A CN201010179045 A CN 201010179045A CN 101870590 A CN101870590 A CN 101870590A
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- sealing material
- blast
- furnace hot
- clay
- hot blast
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Abstract
The invention discloses a composite anhydrous indentation sealing material for a blast-furnace hot blast stove, comprising the following components in percentage by weight: 65%-70% of a component A and 35%-30% of a component B, wherein the component A comprises the following raw materials in percentage by weight: 20%-40% of high-alumina bauxite powder, 20%-40% of flint clay, 5%-20% of andalusite, 3%-15% of clay and 1%-10% of graphite; and the component B is thermosetting phenolic resin. The composite anhydrous indentation sealing material has good sealing property and flowability, good drilling force and penetrating property in the indentation process, and the like; and in addition, after the composite anhydrous indentation sealing material is used in a blast furnace, the gas escaping amount is zero, the environment pollution is reduced, and the environmental protection and outstanding social benefits are obtained.
Description
One, technical field:
The present invention relates to a kind of refractory materials, particularly relate to a kind of composite anhydrous indentation sealing material for blast-furnace hot blast stove.
Two, technical background:
Blast furnace is in the long-term production process, because blast furnace lining is subjected to that high temperature washes away, mechanical shock and various erosions etc., makes that carbon brick reduces gradually around cupola well, the furnace bottom.When emitting gas fire big around rising of cupola well sidewall electric thermo-couple temperature or the iron mouth, need carry out pressing-in grouting to the furnace bottom cupola well.Purpose is to prevent to produce the gap between stove skin and the refractory brick, avoids gas leak, guarantees good heat-conducting, so that the cooling wall energy is brought into play due effect.
According to the situation that blast furnace is produced, need the position of indentation sealing construction to have following several:
1, the high position of cupola well side wall temperatures;
2, Tie Kou emits the big zone of coal gas;
3, bottom temperature is crossed the high-order bit;
4, the rubescent place of furnace shell stove skin;
5, maintainability was irritated the hole of starching in the past;
6, throat armour rear cavity.
At present, when needing the position of indentation sealing to construct to its blast furnace, the refractory materials that adopts generally is phosphoric acid salt combination seal material, water glass combination seal material, and the distinct disadvantage that these sealing material commonly used exist is: sealing effectiveness is poor, stove skin temperature descends slowly, construction effect is not obvious etc.
At using the defective that the sealing material exists at present always, the applicant Henan Huaxi Furnace Refractory Co., Ltd. successfully develops a kind of sealing material that can overcome present sealing material defective commonly used, have advantages such as sealing property is good, good fluidity through studying for a long period of time.
Three, summary of the invention:
The technical problem to be solved in the present invention provides a kind of composite anhydrous indentation sealing material for blast-furnace hot blast stove.The present invention seals material and has good, the good fluidity of sealing property, and it bores advantages such as power, penetrating quality are good in process of press in.
In order to address the above problem, the technical solution used in the present invention is:
The invention provides a kind of composite anhydrous indentation sealing material for blast-furnace hot blast stove, described sealing material is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 65～70% and 35～30%;
Represent that with weight percentage described A component raw material consists of alumine powder 20～40%, flint clay 20～40%, andaluzite 5～20%, clay 3～15% and graphite 1～10%;
Described B component is a heat-reactive phenolic resin.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of described alumine powder is-180 orders; Al in the described alumine powder
2O
3Content 〉=80%, Fe
2O
3Content≤2%; Volume density 〉=the 2.9g/cm of described alumine powder
3
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of described flint clay is-180 orders; Described flint clay adopts Shandong Zibo to produce flint clay; Al in the described flint clay
2O
3Content 〉=42%, Fe
2O
3Content≤1.2%; The refractoriness of described flint clay＞1730 ℃.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of described andaluzite is-180 orders; Described andaluzite adopts Xinjiang to produce andaluzite; Al in the described andaluzite
2O
3Content 〉=55%, Fe
2O
3Content≤0.8%; The refractoriness of described andaluzite＞1830 ℃.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of described clay is-180 orders; Al in the described clay
2O
3Content be 28～32%.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of described graphite is-100 orders.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, described heat-reactive phenolic resin is the currently available products of selling on the market.
The mixing preparation method of composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention: the proportioning raw materials ratio according to composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention prepares various raw materials, then various raw materials are mixed, pack after mixing and get final product.
The constructional method of product composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention:
1, according to the blast furnace condition of production, the selected position that needs construction;
2, on select location to the perforate of stove skin, the integrity of the seam crossing and the cooling stave of furnace shell can not be destroyed in the position of perforate, perforate will be passed the cooling stave gap, borehole diameter needs with to be pressed into pipe arrangement supporting;
3 and then refractory lining between cooling stave drilled through, arrive the bricking of cooling stave rear wall, filler in the hole is removed to the brick place;
4, tapping vertically welds the short tube of an end band silk of 15 cm long, connects ball valve, the external short circuit of ball valve;
5, connect the pipe that is in the milk, carry out pressure grouting;
6, be pressed into the material Work machine and control process of press in by the skilled worker of skilled operation, particularly rule of thumb judge and carry out pressure-controlling, what of the amount of being pressed into are grasped flexibly according to the situation at scene, and the amount of being pressed into is controlled at every hole 200～300Kg/ time.
Positive beneficial effect of the present invention:
1, composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention has good, the good fluidity of sealing property, bores advantages (performance index of product of the present invention see table one for details) such as saturating power, penetrating quality are good in process of press in.
2, composite anhydrous indentation sealing material for blast-furnace hot blast stove sealing property of the present invention is good, is colloidal under job state, does not shrink, not cracked.
3, composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention bores saturating power in process of press in, penetrating quality is good, the equal porous in slit in the last furnace shell and between the refractory brick is stopped up, the sealing membrane that forms has very high intensity, can be by the gas stream in the stove avulsion.
4, in blast furnace, use composite anhydrous indentation sealing material of the present invention after, the coal gas escaped quantity is zero, reduces contaminate environment, helps environment protection, its obvious social benefit.
The table one hotblast stove of the present invention physical and chemical index of composite anhydrous indentation sealing material
| Sequence number | Project | Unit | Index |
| ??1 | Al 2O 3 | ??％ | ??≥55 |
| Sequence number | Project | Unit | Index |
| ??2 | Refractoriness | ??℃ | ??≥1650 |
| ??3 | Volume density | ??g/cm 3 | ??≥1.9 |
| ??4 | 110 ℃ * 24h of folding strength | ??MPa | ??≥7 |
| ??5 | 110 ℃ * 24h of compressive strength | ??MPa | ??≥40 |
| ??6 | Set time | ??h | ??36～48 |
| ??7 | Solidification value | ??℃ | ??70～80 |
| ??8 | Moisture content | ??％ | ??≤1.0 |
Four, embodiment:
Following examples only in order to further specify the present invention, do not limit content of the present invention.
Embodiment 1: a kind of composite anhydrous indentation sealing material for blast-furnace hot blast stove
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 70% and 30%;
Represent that with weight percentage described A component raw material consists of alumine powder 30%, flint clay 30%, andaluzite 20%, clay 10% and graphite 10%;
Described B component is a heat-reactive phenolic resin.
The specific requirement of each raw material in above-mentioned raw materials is formed: the granularity of described alumine powder is-180 orders, A1 in the alumine powder
2O
3Content 〉=80%, Fe
2O
3Content≤2%, the volume density 〉=2.9g/cm of alumine powder
3The granularity of described flint clay is-180 orders, and flint clay adopts Shandong Zibo to produce flint clay, Al in the flint clay
2O
3Content 〉=42%, Fe
2O
3Content≤1.2%, the refractoriness of described flint clay＞1730 ℃; The granularity of described andaluzite is-180 orders, and andaluzite adopts Xinjiang to produce andaluzite, Al in the andaluzite
2O
3Content 〉=55%, Fe
2O
3Content≤0.8%, the refractoriness of described andaluzite＞1830 ℃; The granularity of described clay is-180 orders, Al in the clay
2O
3Content be 28～32%; The granularity of described graphite is-100 orders; Described heat-reactive phenolic resin is the currently available products of selling on the market.
Embodiment 2: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 65% and 35%;
Represent that with weight percentage described A component raw material consists of alumine powder 40%, flint clay 20%, andaluzite 17%, clay 15% and graphite 8%.
Embodiment 3: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 68% and 32%;
Represent that with weight percentage described A component raw material consists of alumine powder 20%, flint clay 40%, andaluzite 20%, clay 12% and graphite 8%.
Embodiment 4: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 67% and 33%;
Represent that with weight percentage described A component raw material consists of alumine powder 40%, flint clay 40%, andaluzite 5%, clay 8% and graphite 7%.
Embodiment 5: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 69% and 31%;
Represent that with weight percentage described A component raw material consists of alumine powder 37%, flint clay 38%, andaluzite 15%, clay 5% and graphite 5%.
Embodiment 6: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 70% and 30%;
Represent that with weight percentage described A component raw material consists of alumine powder 40%, flint clay 40%, andaluzite 11%, clay 3% and graphite 6%.
Embodiment 7: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 70% and 30%;
Represent that with weight percentage described A component raw material consists of alumine powder 32%, flint clay 36%, andaluzite 18%, clay 13% and graphite 1%.
Embodiment 8: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 68% and 32%;
Represent that with weight percentage described A component raw material consists of alumine powder 25%, flint clay 38%, andaluzite 16%, clay 14% and graphite 7%.
Embodiment 9: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 70% and 30%;
Represent that with weight percentage described A component raw material consists of alumine powder 35%, flint clay 25%, andaluzite 18%, clay 12% and graphite 10%.
Embodiment 10: substantially the same manner as Example 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 66% and 34%;
Represent that with weight percentage described A component raw material consists of alumine powder 28%, flint clay 37%, andaluzite 15%, clay 12% and graphite 8%.
Claims (7)
1. composite anhydrous indentation sealing material for blast-furnace hot blast stove, it is characterized in that: described sealing material is made up of two kinds of components of A, B, and two kinds of shared weight percentages of component of A, B are respectively 65～70% and 35～30%;
Represent that with weight percentage described A component raw material consists of alumine powder 20～40%, flint clay 20～40%, andaluzite 5～20%, clay 3～15% and graphite 1～10%;
Described B component is a heat-reactive phenolic resin.
2. composite anhydrous indentation sealing material for blast-furnace hot blast stove according to claim 1 is characterized in that: the granularity of described alumine powder is-180 orders; Al in the described alumine powder
2O
3Content 〉=80%, Fe
2O
3Content≤2%; Volume density 〉=the 2.9g/cm of described alumine powder
3
3. composite anhydrous indentation sealing material for blast-furnace hot blast stove according to claim 1 is characterized in that: the granularity of described flint clay is-180 orders; Al in the described flint clay
2O
3Content 〉=42%, Fe
2O
3Content≤1.2%, the refractoriness of described flint clay＞1730 ℃; Described flint clay adopts Shandong Zibo to produce flint clay.
4. composite anhydrous indentation sealing material for blast-furnace hot blast stove according to claim 1 is characterized in that: the granularity of described andaluzite is-180 orders; Described andaluzite adopts Xinjiang to produce andaluzite; Al in the described andaluzite
2O
3Content 〉=55%, Fe
2O
3Content≤0.8%; The refractoriness of described andaluzite＞1830 ℃.
5. composite anhydrous indentation sealing material for blast-furnace hot blast stove according to claim 1 is characterized in that: the granularity of described clay is-180 orders; Al in the described clay
2O
3Content be 28～32%.
6. composite anhydrous indentation sealing material for blast-furnace hot blast stove according to claim 1 is characterized in that: the granularity of described graphite is-100 orders.
7. composite anhydrous indentation sealing material for blast-furnace hot blast stove according to claim 1 is characterized in that: described heat-reactive phenolic resin is the currently available products of selling on the market.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101790451A CN101870590B (en) | 2010-05-21 | 2010-05-21 | Composite anhydrous indentation sealing material for blast-furnace hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101790451A CN101870590B (en) | 2010-05-21 | 2010-05-21 | Composite anhydrous indentation sealing material for blast-furnace hot blast stove |
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| Publication Number | Publication Date |
|---|---|
| CN101870590A true CN101870590A (en) | 2010-10-27 |
| CN101870590B CN101870590B (en) | 2012-09-26 |
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|---|---|---|---|
| CN2010101790451A Active CN101870590B (en) | 2010-05-21 | 2010-05-21 | Composite anhydrous indentation sealing material for blast-furnace hot blast stove |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276263A (en) * | 2011-04-28 | 2011-12-14 | 河南鑫诚耐火材料股份有限公司 | Manufacturing method of seal cover for operation observation aperture on carbon calciner fire wall |
| CN102372472A (en) * | 2011-08-01 | 2012-03-14 | 北京瑞普同创科技发展有限公司 | Plastic seal pressing-in material for eliminating blast furnace gas blowby |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1552796A (en) * | 2003-05-29 | 2004-12-08 | 宝山钢铁股份有限公司 | Semi-dry method gun mix for coal oven reparing |
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2010
- 2010-05-21 CN CN2010101790451A patent/CN101870590B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1552796A (en) * | 2003-05-29 | 2004-12-08 | 宝山钢铁股份有限公司 | Semi-dry method gun mix for coal oven reparing |
Non-Patent Citations (4)
| Title |
|---|
| 《耐火材料》 19941231 孙险峰等 "大型高炉热修补硬质压入料的研制" 第152-155页 1-7 第28卷, 第3期 2 * |
| 张洪雷等: "硬质压入修补料性能与结构的研究", 《武钢技术》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276263A (en) * | 2011-04-28 | 2011-12-14 | 河南鑫诚耐火材料股份有限公司 | Manufacturing method of seal cover for operation observation aperture on carbon calciner fire wall |
| CN102276263B (en) * | 2011-04-28 | 2013-06-12 | 河南鑫诚耐火材料股份有限公司 | Manufacturing method of seal cover for operation observation aperture on carbon calciner fire wall |
| CN102372472A (en) * | 2011-08-01 | 2012-03-14 | 北京瑞普同创科技发展有限公司 | Plastic seal pressing-in material for eliminating blast furnace gas blowby |
| CN102372472B (en) * | 2011-08-01 | 2013-08-07 | 北京瑞普同创科技发展有限公司 | Plastic seal pressing-in material for eliminating blast furnace gas blowby |
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| Publication number | Publication date |
|---|---|
| CN101870590B (en) | 2012-09-26 |
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