CN101823894A - Baking-free carbon rammed mass and preparation method thereof - Google Patents
Baking-free carbon rammed mass and preparation method thereof Download PDFInfo
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- CN101823894A CN101823894A CN201010160239A CN201010160239A CN101823894A CN 101823894 A CN101823894 A CN 101823894A CN 201010160239 A CN201010160239 A CN 201010160239A CN 201010160239 A CN201010160239 A CN 201010160239A CN 101823894 A CN101823894 A CN 101823894A
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Abstract
The invention discloses a baking-free carbon rammed mass and a preparation method thereof, aiming to provide a baking-free carbon rammed mass which has high carbon content, abrasion resistance, corrosion resistance and convenient construction and conforms to requirements on energy conservation and environment protection. The adopted technical scheme of the invention is as follows: the carbon rammed mass comprises particle raw materials, micropowder raw materials, modified bonding agent and phenolic resin; after being applied, the invention is proved that the baking-free rammed mass in the invention has primary ramming time of 15-25min, thus greatly lowering labor strength and saving labor time; baking is not performed, and tapping can be performed after ramming is finished, thus saving baking cost; the benzopyrene content is no more than 0.05%, thus having no environmental pollution; a primary iron flux period is long (50,000-100,000ton), thus improving service life; and the carbon rammed mass has the advantages of high carbon content, abrasion and corrosion resistance, convenient construction and the like, saves energy and protects environment, and is a substitute of iron trough castables.
Description
Technical field
The present invention relates to fire resisting material field, be applicable to iron-smelting blast furnace stokehold casting house with the iron runner ramming mass, cover slag device material, State of Blast Furnace at the bottom of the water cooling tube medullary ray with the upper part ramming, the ramming of screed-coat on position, gap ramming and the State of Blast Furnace bottom sealing plate between blast furnace lining and the box hat.
Background technology
In the prior art, be used for iron-smelting blast furnace stokehold casting house with the ramming mass of iron runner, cover that the water cooling tube medullary ray exists following technological deficiency with the ramming mass of screed-coat on position, gap ramming mass between upper part ramming mass, blast furnace lining and the box hat and the State of Blast Furnace bottom sealing plate at the bottom of slag device material, the State of Blast Furnace:
1, hand labor intensity big (the once-cast shortest time needs 12-8 hour);
2, baking cycle long (96 hours-168 little);
3, easily sticking iron causes pig iron waste;
4, carcinogens benzopyrene content height (1-3%);
5, life cycle short (ten thousand tons of 1-3)
Summary of the invention
The object of the present invention is to provide a kind of carbon content height, anti-ly wash away, anti-erosion, easy construction, meet the baking-free carbon rammed mass of energy-conserving and environment-protective requirement.
The present invention has adopted following technical scheme, and described carbon rammed mass comprises: particulate material, powder material, modification wedding agent, resol;
The composition by weight of the former grain of the particle of described baking-free carbon rammed mass is respectively:
Material name raw material specification (granularity) composition by weight
Electric calcined anthracite 5-8mm 10-20
Electric calcined anthracite 3-5mm 5-10
Metallurgical coke 1-3mm 4.5-6.5
Metallurgical coke 0.01-1mm 4.5-6.5
Described powder material comprises:
Powder material title specification (granularity) composition by weight
Metallurgical coke fine powder 0.075mm 12-16
Ground anthracite 0.075mm 12-16
Scale graphite powder 0.024mm 12-16
Silicon carbide 0.088mm 12-16
The composition by weight of modification wedding agent is 13-18 part; Resol 13-18 part
Its preparation method comprises the following steps:
A), preparation modification wedding agent:
Take by weighing the oil pitch prill that accounts for gross weight 20-80%, account for the coal tar of gross weight 80-20%, be placed into forced action type heated and stirred machine and be heated to complete fusion, be fluid state, add resol, open forced mixer, stirred 15-20 minute, be cooled to 65 ℃-90 ℃ standby;
B), preparation baking-free carbon rammed mass:
Take by weighing particulate material by weight, insert forced mixer, adding weight ratio is the modification wedding agent that 13-18 part step a) is obtained, and fully stirs, and makes it to mix;
C), obtain in step b) and to add powder material in the mixture, fully stir, pack and get final product.
Check after tested through the product that above-mentioned technology is made, physical and chemical index is as follows:
Volume density 1.5---1.65g/cm
3
Thermal conductivity 12w/m.k
Volatile matter≤12%
Dry back C+SiC 〉=92%
Apparent porosity≤22%
Fixed carbon 〉=76%
Thermal conductivity 〉=2.33w/m.k after 1300 ℃ of burnings
Compressive strength 〉=24mPa after 1300 ℃ of burnings
Through use finding, of the present inventionly exempt to toast ramming mass, a ramming time was saved labour intensity and recruitment time widely at 15-25 minute; Do not toast, ramming can tap a blast furnace well, saves the baking cost; Benzopyrene content≤0.05%, environmentally safe; In the once logical iron cycle long (ten thousand tons of 5-10), improved work-ing life; Have the carbon content height, the anti-advantages such as anti-erosion, easy construction of washing away are a kind of energy saving and environment friendly ramming masses, also are the regeneration products of iron runner castable.
Embodiment
A kind of baking-free carbon rammed mass of the present invention, drink is drawn together particulate material, powder material, modification wedding agent, resol:
The composition by weight of the former grain of the particle of described baking-free carbon rammed mass is respectively:
Material name raw material specification (granularity) composition by weight
Electric calcined anthracite 5-8mm 12-16
Electric calcined anthracite 3-5mm 12-16
Metallurgical coke 1-3mm 12-16
Metallurgical coke 0.01-1mm 12-16
Described powder material comprises:
Powder material title specification (granularity) composition by weight
Metallurgical coke fine powder 0.075mm 10-20
Ground anthracite 0.075mm 5-10
Scale graphite powder 0.024mm 4.5-6.5
Silicon carbide 0.088mm 4.5-6.5
Composition by weight amount 13-18 part of modification wedding agent; Resol 13-18 part
Described baking-free carbon rammed mass, its preparation method comprises the following steps:
A), preparation modification wedding agent:
Take by weighing the oil pitch prill that accounts for gross weight 20-80%, account for the coal tar of gross weight 80-20%, be placed into forced action type heated and stirred machine and be heated to complete fusion, be fluid state, add the phenol phenol resins again, open forced action type heated and stirred machine, stirred 15-20 minute, be cooled to 65 ℃-90 ℃ standby;
B), preparation baking-free carbon rammed mass:
Take by weighing particulate material by weight, insert forced mixer, adding weight ratio is the modification wedding agent that 13-18 part step a) is obtained, and fully stirs, and makes it to mix;
C), obtain in step b) and to add powder material in the mixture, fully stir, pack and get final product.
Claims (2)
1. a baking-free carbon rammed mass comprises particulate material, powder material, modification wedding agent, it is characterized in that:
The composition by weight of the former grain of the particle of described baking-free carbon rammed mass is respectively:
Material name raw material specification (granularity) composition by weight
Electric calcined anthracite 5-8mm 10-20
Electric calcined anthracite 3-5mm 5-10
Metallurgical coke 1-3mm 4.5-6.5
Metallurgical coke 0.01-1mm 4.5-6.5
Described powder material comprises:
Powder material title specification (granularity) composition by weight
Metallurgical coke fine powder 0.075mm 12-16
Ground anthracite 0.075mm 12-16
Scale graphite powder 0.024mm 12-16
Silicon carbide 0.088mm 12-16
The composition by weight of modification wedding agent is 13-18 part; Resol 13-18 part.
2. according to the described baking-free carbon rammed mass of claim 1, its preparation method comprises the following steps:
A), preparation modification wedding agent:
Take by weighing the oil pitch prill that accounts for gross weight 20-80%, account for the coal tar of gross weight 80-20%, be placed into forced action type heated and stirred machine and be heated to complete fusion, be fluid state, add resol, open forced action type heated and stirred machine, stirred 15-20 minute, be cooled to 65 ℃-90 ℃ standby;
B), preparation baking-free carbon rammed mass:
Take by weighing particulate material by weight, insert forced mixer, adding weight ratio is the modification wedding agent that 13-18 part step a) is obtained, and fully stirs, and makes it to mix;
C), obtain in step b) and to add powder material in the mixture, fully stir, pack and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010160239A CN101823894A (en) | 2010-04-30 | 2010-04-30 | Baking-free carbon rammed mass and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010160239A CN101823894A (en) | 2010-04-30 | 2010-04-30 | Baking-free carbon rammed mass and preparation method thereof |
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| CN101823894A true CN101823894A (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201010160239A Pending CN101823894A (en) | 2010-04-30 | 2010-04-30 | Baking-free carbon rammed mass and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557678A (en) * | 2011-11-21 | 2012-07-11 | 武汉钢铁(集团)公司 | Carbon ramming material for blast furnace and preparation method for carbon ramming material |
| CN102559961A (en) * | 2012-03-13 | 2012-07-11 | 湖南省涟源市合成耐火材料厂 | Anti-steel-sticking treatment method of slag basins and slag tanks by using overflow steel tank ramming material |
| CN103387401A (en) * | 2013-08-09 | 2013-11-13 | 武汉威林科技股份有限公司 | High heat conductive carbon ramming mass and preparation method thereof |
| CN107244930A (en) * | 2017-05-24 | 2017-10-13 | 方大炭素新材料科技股份有限公司 | A kind of resistance to molten iron corrodes blast furnace carbon brick and preparation method thereof |
| CN111620704A (en) * | 2020-05-20 | 2020-09-04 | 武汉钢铁有限公司 | High-thermal-conductivity carbon castable capable of flowing automatically for blast furnace |
-
2010
- 2010-04-30 CN CN201010160239A patent/CN101823894A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557678A (en) * | 2011-11-21 | 2012-07-11 | 武汉钢铁(集团)公司 | Carbon ramming material for blast furnace and preparation method for carbon ramming material |
| CN102559961A (en) * | 2012-03-13 | 2012-07-11 | 湖南省涟源市合成耐火材料厂 | Anti-steel-sticking treatment method of slag basins and slag tanks by using overflow steel tank ramming material |
| CN102559961B (en) * | 2012-03-13 | 2013-10-16 | 湖南省涟源市合成耐火材料厂 | Anti-steel-sticking treatment method of slag basins and slag tanks by using overflow steel tank ramming material |
| CN103387401A (en) * | 2013-08-09 | 2013-11-13 | 武汉威林科技股份有限公司 | High heat conductive carbon ramming mass and preparation method thereof |
| CN107244930A (en) * | 2017-05-24 | 2017-10-13 | 方大炭素新材料科技股份有限公司 | A kind of resistance to molten iron corrodes blast furnace carbon brick and preparation method thereof |
| CN111620704A (en) * | 2020-05-20 | 2020-09-04 | 武汉钢铁有限公司 | High-thermal-conductivity carbon castable capable of flowing automatically for blast furnace |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100908 |