CN101870590B - 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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- CN101870590B CN101870590B CN2010101790451A CN201010179045A CN101870590B CN 101870590 B CN101870590 B CN 101870590B CN 2010101790451 A CN2010101790451 A CN 2010101790451A CN 201010179045 A CN201010179045 A CN 201010179045A CN 101870590 B CN101870590 B CN 101870590B
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- sealing material
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- 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 receives that high temperature washes away, physical 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 kinds:
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.
To 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 that the present invention will solve 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 bore to pass through advantages such as power, penetrating quality are good in process of press in.
In order to address the above problem, the technical scheme that the present invention adopts is:
The present invention provides a kind of composite anhydrous indentation sealing material for blast-furnace hot blast stove, and said sealing material is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 65～70% and 35～30%;
Represent that with weight percentage said A component raw material consists of alumine powder 20～40%, flint clay 20～40%, andaluzite 5～20%, clay 3～15% and graphite 1～10%;
Said 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 said alumine powder is-180 orders; Al in the said alumine powder
2O
3Content>=80%, Fe
2O
3Content≤2%; Volume density>=the 2.9g/cm of said alumine powder
3
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of said flint clay is-180 orders; Said flint clay adopts Shandong Zibo to produce flint clay; Al in the said flint clay
2O
3Content>=42%, Fe
2O
3Content≤1.2%; The refractoriness of said flint clay＞1730 ℃.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of said andaluzite is-180 orders; Said andaluzite adopts Xinjiang to produce andaluzite; Al in the said andaluzite
2O
3Content>=55%, Fe
2O
3Content≤0.8%; The refractoriness of said andaluzite＞1830 ℃.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of said clay is-180 orders; Al in the said clay
2O
3Content be 28～32%.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, the granularity of said graphite is-100 orders.
According to above-mentioned composite anhydrous indentation sealing material for blast-furnace hot blast stove, said 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 tradesman of skilled operation, particularly rule of thumb judge and carry out pressure-controlling, what of the amount of being pressed into are grasped according to the situation at scene flexibly, 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, in process of press in, bore to pass through advantages (performance of products index of the present invention sees table one for details) such as power, penetrating quality are good.
2, composite anhydrous indentation sealing material for blast-furnace hot blast stove sealing property of the present invention is good, under job state, is colloidal, does not shrink, not cracked.
3, composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention bores the power of passing through 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.
Table one hotblast stove of the present invention is with the physical and chemical index of composite anhydrous indentation sealing material
| Sequence number | Project | Unit | Index |
| 1 | Al 2O 3 | ％ | ≥55 |
| 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 have been merely and have further specified 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 A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 70% and 30%;
Represent that with weight percentage said A component raw material consists of alumine powder 30%, flint clay 30%, andaluzite 20%, clay 10% and graphite 10%;
Said 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 said 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 said 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 said flint clay＞1730 ℃; The granularity of said 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 said andaluzite＞1830 ℃; The granularity of said clay is-180 orders, Al in the clay
2O
3Content be 28～32%; The granularity of said graphite is-100 orders; Said heat-reactive phenolic resin is the currently available products of selling on the market.
Embodiment 2: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 65% and 35%;
Represent that with weight percentage said A component raw material consists of alumine powder 40%, flint clay 20%, andaluzite 17%, clay 15% and graphite 8%.
Embodiment 3: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 68% and 32%;
Represent that with weight percentage said A component raw material consists of alumine powder 20%, flint clay 40%, andaluzite 20%, clay 12% and graphite 8%.
Embodiment 4: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 67% and 33%;
Represent that with weight percentage said A component raw material consists of alumine powder 40%, flint clay 40%, andaluzite 5%, clay 8% and graphite 7%.
Embodiment 5: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 69% and 31%;
Represent that with weight percentage said A component raw material consists of alumine powder 37%, flint clay 38%, andaluzite 15%, clay 5% and graphite 5%.
Embodiment 6: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 70% and 30%;
Represent that with weight percentage said A component raw material consists of alumine powder 40%, flint clay 40%, andaluzite 11%, clay 3% and graphite 6%.
Embodiment 7: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 70% and 30%;
Represent that with weight percentage said A component raw material consists of alumine powder 32%, flint clay 36%, andaluzite 18%, clay 13% and graphite 1%.
Embodiment 8: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 68% and 32%;
Represent that with weight percentage said A component raw material consists of alumine powder 25%, flint clay 38%, andaluzite 16%, clay 14% and graphite 7%.
Embodiment 9: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 70% and 30%;
Represent that with weight percentage said A component raw material consists of alumine powder 35%, flint clay 25%, andaluzite 18%, clay 12% and graphite 10%.
Embodiment 10: basic identical with embodiment 1, difference is:
Composite anhydrous indentation sealing material for blast-furnace hot blast stove of the present invention is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 66% and 34%;
Represent that with weight percentage said 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: said sealing material is made up of A, two kinds of components of B, and A, two kinds of shared weight percentages of component of B are respectively 65～70% and 35～30%;
Represent that with weight percentage said A component raw material consists of alumine powder 20～40%, flint clay 20～40%, andaluzite 5～20%, clay 3～15% and graphite 1～10%;
Said 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 said alumine powder is-180 orders; Al in the said alumine powder
2O
3Content>=80%, Fe
2O
3Content≤2%; Volume density>=the 2.9g/cm of said 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 said flint clay is-180 orders; Al in the said flint clay
2O
3Content>=42%, Fe
2O
3Content≤1.2%, the refractoriness of said flint clay＞1730 ℃; Said 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 said andaluzite is-180 orders; Said andaluzite adopts Xinjiang to produce andaluzite; Al in the said andaluzite
2O
3Content>=55%, Fe
2O
3Content≤0.8%; The refractoriness of said 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 said clay is-180 orders; Al in the said 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 said graphite is-100 orders.
7. composite anhydrous indentation sealing material for blast-furnace hot blast stove according to claim 1 is characterized in that: said 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 |
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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 |
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|---|---|
| CN101870590A CN101870590A (en) | 2010-10-27 |
| CN101870590B true 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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| 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 |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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- 2010-05-21 CN CN2010101790451A patent/CN101870590B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (1)
| Title |
|---|
| 孙险峰等."大型高炉热修补硬质压入料的研制".《耐火材料》.1994,第28卷(第3期),第152-155页. |
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