CN102603335B - High-temperate and high-strength carbon daub - Google Patents
High-temperate and high-strength carbon daub Download PDFInfo
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- CN102603335B CN102603335B CN 201210081517 CN201210081517A CN102603335B CN 102603335 B CN102603335 B CN 102603335B CN 201210081517 CN201210081517 CN 201210081517 CN 201210081517 A CN201210081517 A CN 201210081517A CN 102603335 B CN102603335 B CN 102603335B
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Abstract
The invention discloses a high-temperate and high-strength carbon daub, which is prepared from raw material anthracite, artificial graphite powder, comprehensive additive and liquid resin with the following method in the following steps of: firstly, processing the anthracite at high temperature in a graphitization furnace, and breaking into powder after the anthracite is cooled; evenly mixing the graphitized anthracite, the graphite powder and the comprehensive additive at the mass ratio of 40+/-10:30+/-10:30+/-10 into powder material; evenly stirring the powder material and the liquid resin at the ratio of 3:1; and standing and defoaming for 1 hour to obtain a finished product. The high-temperate and high-strength carbon daub has the advantages of high strength; when the temperature reaches 850 DEG C, the strength is only 6-8MPa; when the temperature rises to the 1150 DEG C, molten iron in the hearth of a blast furnace tends to the melting state, and the strength of the carbon daub disclosed by the invention is still maintained at 6-8MPa; when the temperature reaches 1600 DEG C, the strength of the carbon daub disclosed by the invention is maintained at 6-8MPa, and the molten iron does not ooze from carbon brick gaps so as to prevent from damaging the hearth; and the service life of the hearth is prolonged.
Description
Technical field
The present invention relates to binding agent, especially relate to a kind of high strength at high temperature carbonaceous clay that the iron-smelting blast furnace brick fuel is used of building by laying bricks or stones.
Background technology
When tradition is built the iron-smelting blast furnace cupola well by laying bricks or stones, the binding agent of using between the brick fuel generally is to be formed by resol and powdered carbon mixed preparing, because the resistance to elevated temperatures of this kind binding agent is relatively poor, when blast furnace temperature rises to more than 1000 ℃, ablating at high temperature can appear in binding agent, molten iron can exosmose between brick fuel, destroys cupola well, influences the work-ing life of blast furnace.
Summary of the invention
The object of the present invention is to provide a kind of high strength at high temperature carbonaceous clay, as building the cupola well binding agent by laying bricks or stones when using, can prolong blast furnace work-ing life more than 2 years.
For achieving the above object, the present invention can take following technical proposals:
High strength at high temperature carbonaceous clay of the present invention, it is to be prepared from according to following weight parts proportioning and method by raw material hard coal, graphous graphite powder, composite additive and liquid resin:
The first step under 2300 ℃ of conditions is handled the outsourcing hard coal 24 hours in graphitizing furnace, and it is standby to be crushed to 100 order greying pulverized anthracites behind the naturally cooling;
Second step, with greying pulverized anthracite, granularity 100 purpose Graphite Powder 99s and the composite additive of above-mentioned preparation by the greying pulverized anthracite: Graphite Powder 99: the weight part proportioning of composite additive=40 ± 10:30 ± 10:30 ± 10 is uniformly mixed into powder;
The 3rd step, with the powder in second step and liquid resin in the ratio of 3:1 stir, discontinuous degassing gets product after 1 hour.
Described composite additive comprises linear phenolic resin, rosin or hexamethylenetetramine.
Described liquid resin is formulated in the ratio of 1:1 by furane resin and resol.
Described anthracitic ash content＜6%, fugitive constituent 6-8%, moisture＜5%; The ash content of described graphous graphite powder is less than 0.5%, resistivity＜200 μ Ω m.
The finished product carbonaceous clay that the present invention obtains, the intensity contrast of its intensity and common binding agent commonly used is as follows:
| ? | 160 ℃ (curing) | 850℃ | 1150℃ | 1600℃ |
| Conventional binding agent (MPa) | 6-8 | 1-2 | 0 | 0 |
| Carbonaceous clay (MPa) | ＞10 | 6-8 | 6-8 | 6-8 |
The invention has the advantages that the intensity height, when temperature reaches 850 ℃, intensity is only reduced to 6-8 MPa, when temperature rises to 1150 ℃, molten iron in the blast furnace hearth namely is tending towards molten state, at this moment, the conventional adhesive strength that uses is close to zero, and the intensity of carbonaceous clay of the present invention still maintains 6-8 MPa, when temperature reached 1600 ℃, the intensity of carbonaceous clay of the present invention kept 6-8 MPa constant, and molten iron can not ooze out between the brick fuel seam, can not cause damage to cupola well, prolong the work-ing life of cupola well.
Embodiment
High strength at high temperature carbonaceous clay of the present invention, it is to be prepared from according to following weight parts proportioning and method by raw material hard coal, graphous graphite powder, composite additive and liquid resin:
The first step under 2300 ℃ of conditions is handled outsourcing hard coal (ash content＜6%, fugitive constituent=6-8%, moisture＜5%) 24 hours in graphitizing furnace, and it is standby to be crushed to 100 order greying pulverized anthracites behind the naturally cooling;
Second step, greying pulverized anthracite with above-mentioned preparation, (ash content is less than 0.5% for granularity 100 purpose Graphite Powder 99s, resistivity＜200 μ Ω m) and composite additive (linear phenolic resin, rosin or hexamethylenetetramine etc.) by the greying pulverized anthracite: Graphite Powder 99: the weight part proportioning of composite additive=40 ± 10:30 ± 10:30 ± 10 is uniformly mixed into powder, and (wherein the preferred proportion between the three is the greying pulverized anthracite: Graphite Powder 99: composite additive=40:30:30, during actual the preparation, the ratio between the three also can be chosen as the greying pulverized anthracite: Graphite Powder 99: composite additive=30:40:20 or greying pulverized anthracite: Graphite Powder 99: composite additive=50:20:40);
The 3rd step, with second powder that prepare of step and by furane resin and resol in the formulated liquid resin of the ratio of 1:1 in a resin of three parts of powders of 3:1() ratio stir, discontinuous degassing gets product after 1 hour, store according to the packed bag of 25kg/.
When building cupola well by laying bricks or stones, clean the brick fuel surface-conditioning, build by laying bricks or stones by construction requirement.
Claims (1)
1. high strength at high temperature carbonaceous clay, it is characterized in that: it is to be prepared from according to following weight parts proportioning and method by raw material outsourcing hard coal, graphous graphite powder, composite additive and liquid resin:
The first step under 2300 ℃ of conditions is handled the outsourcing hard coal 24 hours in graphitizing furnace, and it is standby to be crushed to 100 order greying pulverized anthracites behind the naturally cooling, the anthracitic ash content of described outsourcing＜6%, fugitive constituent 6-8%, moisture＜5%;
Second step, with greying pulverized anthracite, granularity 100 purpose graphous graphite powders and the composite additive of above-mentioned preparation by the greying pulverized anthracite: graphous graphite powder: the weight part proportioning of composite additive=40 ± 10:30 ± 10:30 ± 10 is uniformly mixed into powder; The ash content of described graphous graphite powder is less than 0.5%, resistivity＜200 μ Ω m; Described composite additive comprises linear phenolic resin, rosin and hexamethylenetetramine;
The 3rd step, with the powder in second step and liquid resin in the ratio of 3:1 stir, discontinuous degassing gets product after 1 hour, described liquid resin is formulated in the ratio of 1:1 by furane resin and resol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210081517 CN102603335B (en) | 2012-03-26 | 2012-03-26 | High-temperate and high-strength carbon daub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210081517 CN102603335B (en) | 2012-03-26 | 2012-03-26 | High-temperate and high-strength carbon daub |
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| Publication Number | Publication Date |
|---|---|
| CN102603335A CN102603335A (en) | 2012-07-25 |
| CN102603335B true CN102603335B (en) | 2013-08-07 |
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| CN 201210081517 Active CN102603335B (en) | 2012-03-26 | 2012-03-26 | High-temperate and high-strength carbon daub |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230209B (en) * | 2014-09-16 | 2016-07-06 | 武汉钢铁(集团)公司 | Acid-resistant anti-corrosion carbon brick clay and preparation method thereof |
| CN107603525A (en) * | 2017-09-25 | 2018-01-19 | 广西众昌树脂有限公司 | The method for improving liquid resin adhesive strength |
| CN112125572B (en) * | 2020-09-15 | 2022-07-15 | 宁夏文顺新型炭材制品有限公司 | High-temperature oxidation-resistant carbon coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880510A (en) * | 2005-02-27 | 2006-12-20 | 高德金 | Dedicated filling paste for cathode carbon block slot in aluminium cell |
| CN102010202A (en) * | 2010-12-10 | 2011-04-13 | 昆明冶金研究院 | Method for preparing cold ramming paste for electrolytic aluminum |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08231277A (en) * | 1995-02-27 | 1996-09-10 | Nippon Steel Corp | Mud material for closing tap hole of blast furnace |
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2012
- 2012-03-26 CN CN 201210081517 patent/CN102603335B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880510A (en) * | 2005-02-27 | 2006-12-20 | 高德金 | Dedicated filling paste for cathode carbon block slot in aluminium cell |
| CN102010202A (en) * | 2010-12-10 | 2011-04-13 | 昆明冶金研究院 | Method for preparing cold ramming paste for electrolytic aluminum |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-231277A 1996.09.10 |
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| CN102603335A (en) | 2012-07-25 |
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Application publication date: 20120725 Assignee: Gongyi Anzheng Refractory Materials Co.,Ltd. Assignor: HENAN CROSSING OCEAN NEW MATERIALS TECHNOLOGY CO.,LTD. Contract record no.: X2023980040981 Denomination of invention: High temperature and high strength carbon cement Granted publication date: 20130807 License type: Common License Record date: 20230904 |