CN1293207C - Heat pressing burnt carbon brick for lining and hearth of iron smelting blast furnace - Google Patents
Heat pressing burnt carbon brick for lining and hearth of iron smelting blast furnace Download PDFInfo
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- CN1293207C CN1293207C CNB2005100484903A CN200510048490A CN1293207C CN 1293207 C CN1293207 C CN 1293207C CN B2005100484903 A CNB2005100484903 A CN B2005100484903A CN 200510048490 A CN200510048490 A CN 200510048490A CN 1293207 C CN1293207 C CN 1293207C
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- Prior art keywords
- forming mould
- carbon brick
- molding
- brick
- brick fuel
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- 239000011449 brick Substances 0.000 title claims abstract description 52
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 20
- 238000003825 pressing Methods 0.000 title claims abstract description 17
- 238000003723 Smelting Methods 0.000 title abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003830 anthracite Substances 0.000 claims abstract description 14
- 229910021383 artificial graphite Inorganic materials 0.000 claims abstract description 14
- 229910021382 natural graphite Inorganic materials 0.000 claims abstract description 14
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 14
- 238000007796 conventional method Methods 0.000 claims abstract description 12
- 239000011812 mixed powder Substances 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000000446 fuel Substances 0.000 claims description 31
- 238000000465 moulding Methods 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000011339 hard pitch Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 11
- 238000013467 fragmentation Methods 0.000 claims description 11
- 238000006062 fragmentation reaction Methods 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000010426 asphalt Substances 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Abstract
The present invention discloses a heat-pressing burnt carbon brick for a lining and a hearth of an iron smelting blast furnace, which is prepared from 20 wt% to 50 wt% of electric-calcined anthracite, 10 wt% to 30 wt% of natural graphite, 10 wt% to 30 wt% of artificial graphite, 1 wt% to 5 wt% of metallic silicon, 1 wt% to 5 wt% of silicon oxide, 3 wt% to 10 wt% of aluminum oxide and 10 wt% to 20 wt% of high-temperature asphalt in the following preparation steps: step one, the raw materials are mixed and compounded after being crushed and pulverized; step two, mixed powder obtained in step one is put in a forming mould after being mixed and kneaded and then is kept for 1 to 2 min under the pressure of 3 to 7Mpa, and then a carbon brick formed by prepressing is obtained; step three, the carbon brick formed by prepressing in step two is electrically heated to 800 DEG C to 1100 DEG C in the forming mould, is simultaneously pressurized into 30 to 50Mpa and then is taken out after being kept for 8 to 10 min, and then the heat-pressing burnt carbon brick is obtained through processing and forming in the conventional method. The present invention has the advantages that the profiling burnt step and the calcining burnt step in the traditional producing technology are integrated so that the burnt time is shortened within 10 minutes, and then the production energy consumption of the carbon brick is greatly reduced.
Description
Technical field
The present invention relates to a kind of refractory materials, especially relate to a kind of heat pressing burnt carbon brick that is used for ironmaking blast furnace lining, cupola well.
Background technology
The brick fuel that is used for ironmaking blast furnace lining, cupola well now makes into the of low quality of brick because sintering technology is limit, and the thermal conductivity of its finished product is generally 14W/ (m.k) (600 ℃), Gas permeability is 10mDa, has directly caused the longevity of iron-smelting blast furnace thus; And traditional sintering technology be basically according to: choosing raw material-fragmentation-abrasive dust-batching-mix to pinch-die mould-roasting burn till-processes, burn till in these two technological processs in die mould-roasting, spend for up to more than 20 days, therefore improved energy-output ratio greatly, and production efficiency is low, the production cost height.
Summary of the invention
The object of the present invention is to provide the heat pressing burnt carbon brick that is used for ironmaking blast furnace lining, cupola well that a kind of process period is short, final product quality is high.
For achieving the above object, the present invention can take following technical proposals:
The heat pressing burnt carbon brick that is used for ironmaking blast furnace lining, cupola well of the present invention, it is to be prepared from according to following weight per distribution ratio and step by raw material electric calcined anthracite, natural graphite, synthetic graphite, Pure Silicon Metal, silicon oxide, aluminum oxide, hard pitch:
A, weight percent proportioning:
Electric calcined anthracite 20-50, natural graphite 10-30, synthetic graphite 10-30, Pure Silicon Metal 1-5, silicon oxide 1-5, aluminum oxide 3-10, hard pitch 10-20;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 3-7MPa, kept 1-2 minute after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 30-50MPa when being heated to 800-1100 ℃, keeps after 8-10 minute, and taking-up shapes promptly according to a conventional method.
Described heat pressing burnt carbon brick can be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 20, natural graphite 30, synthetic graphite 30, Pure Silicon Metal 1, silicon oxide 1, aluminum oxide 3, hard pitch 15;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 3MPa, kept 1 minute after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 30MPa when being heated to 800 ℃, keeps after 8 minutes, and taking-up shapes promptly according to a conventional method.
Described heat pressing burnt carbon brick also can be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 50, natural graphite 20, synthetic graphite 10, Pure Silicon Metal 2, silicon oxide 3, aluminum oxide 5, hard pitch 10;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 5MPa, kept 1.5 minutes after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 40MPa when being heated to 1000 ℃, keeps after 9 minutes, and taking-up shapes promptly according to a conventional method.
Described heat pressing burnt carbon brick also can be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 30, natural graphite 10, synthetic graphite 20, Pure Silicon Metal 5, silicon oxide 5, aluminum oxide 10, hard pitch 20;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 7MPa, kept 2 minutes after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 50MPa when being heated to 1100 ℃, keeps after 10 minutes, and taking-up shapes promptly according to a conventional method.
The invention has the advantages that the brick fuel proportioning that has adopted science, and these two steps are burnt till in the die mould-roasting in the traditional processing technology integrate, promptly adopt on the basis behind the pre-molding directly to brick fuel energising heating and pressurization simultaneously, make product under high pressure high temperature burn till fast, firing time was shortened in 10 minutes, this has not only shortened the production cycle that charcoal changes greatly, and makes the energy consumption of producing brick fuel reduce greatly.And the percentage of open area and the air penetrability of finished product brick fuel have been reduced, improved the thermal conductivity of brick fuel, the thermal conductivity and the Gas permeability of the finished product brick fuel of producing according to the present invention are respectively 26W/ (m.k) (600 ℃) and 2.97mDa, and the thermal conductivity of existing finished product brick fuel and Gas permeability are respectively 14W/ (m.k) (600 ℃) and 10mDa.Therefore make the quality of finished product brick fuel be greatly improved, prolonged the work-ing life of iron-smelting blast furnace.
Embodiment
Embodiment 1:
Heat pressing burnt carbon brick of the present invention can be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 20, natural graphite 30, synthetic graphite 30,
Pure Silicon Metal 1, silicon oxide 1, aluminum oxide 3, hard pitch 15;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 3MPa, kept 1 minute after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 30MPa when being heated to 800 ℃, keeps after 8 minutes, and taking-up shapes promptly according to a conventional method.
Embodiment 2:
Heat pressing burnt carbon brick of the present invention also can be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 50, natural graphite 20, synthetic graphite 10,
Pure Silicon Metal 2, silicon oxide 3, aluminum oxide 5, hard pitch 10;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 5MPa, kept 1.5 minutes after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 40MPa when being heated to 1000 ℃, keeps after 9 minutes, and taking-up shapes promptly according to a conventional method.
Embodiment 3:
Heat pressing burnt carbon brick of the present invention also can be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 30, natural graphite 10, synthetic graphite 20,
Pure Silicon Metal 5, silicon oxide 5, aluminum oxide 10, hard pitch 20;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 7MPa, kept 2 minutes after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 50MPa when being heated to 1100 ℃, keeps after 10 minutes, and taking-up shapes promptly according to a conventional method.
Claims (4)
1, a kind of heat pressing burnt carbon brick that is used for ironmaking blast furnace lining, cupola well is characterized in that: it is to be prepared from according to following weight per distribution ratio and step by raw material electric calcined anthracite, natural graphite, synthetic graphite, Pure Silicon Metal, silicon oxide, aluminum oxide, hard pitch:
A, weight percent proportioning:
Electric calcined anthracite 20-50, natural graphite 10-30, synthetic graphite 10-30, Pure Silicon Metal 1-5, silicon oxide 1-5, aluminum oxide 3-10, hard pitch 10-20;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 3-7MPa, kept 1-2 minute after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 30-50MPa when being heated to 800-1100 ℃, keeps after 8-10 minute, and taking-up shapes promptly according to a conventional method.
2, heat pressing burnt carbon brick according to claim 1 is characterized in that: be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 20, natural graphite 30, synthetic graphite 30, Pure Silicon Metal 1, silicon oxide 1, aluminum oxide 3, hard pitch 15;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 3MPa, kept 1 minute after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 30MPa when being heated to 800 ℃, keeps after 8 minutes, and taking-up shapes promptly according to a conventional method.
3, heat pressing burnt carbon brick according to claim 1 is characterized in that: be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 50, natural graphite 20, synthetic graphite 10, Pure Silicon Metal 2, silicon oxide 3, aluminum oxide 5, hard pitch 10;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 5MPa, kept 1.5 minutes after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 40MPa when being heated to 1000 ℃, keeps after 9 minutes, and taking-up shapes promptly according to a conventional method.
4, heat pressing burnt carbon brick according to claim 1 is characterized in that: be prepared from according to following weight per distribution ratio and step:
A, weight percent proportioning:
Electric calcined anthracite 30, natural graphite 10, synthetic graphite 20, Pure Silicon Metal 5, silicon oxide 5, aluminum oxide 10, hard pitch 20;
B, preparation process:
The first step will be carried out mix behind above-mentioned raw materials fragmentation, the abrasive dust;
In second step, the mixed powder of getting the first step gained in the forming mould of packing into, under the pressure of 7MPa, kept 2 minutes after mixed pinching, and obtained the brick fuel of pre-molding;
In the 3rd step, the brick fuel of the second step pre-molding switch in forming mould is forced into 50MPa when being heated to 1100 ℃, keeps after 10 minutes, and taking-up shapes promptly according to a conventional method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100484903A CN1293207C (en) | 2005-11-03 | 2005-11-03 | Heat pressing burnt carbon brick for lining and hearth of iron smelting blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100484903A CN1293207C (en) | 2005-11-03 | 2005-11-03 | Heat pressing burnt carbon brick for lining and hearth of iron smelting blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1752218A CN1752218A (en) | 2006-03-29 |
| CN1293207C true CN1293207C (en) | 2007-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100484903A Active CN1293207C (en) | 2005-11-03 | 2005-11-03 | Heat pressing burnt carbon brick for lining and hearth of iron smelting blast furnace |
Country Status (1)
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992805B (en) * | 2012-11-27 | 2014-12-10 | 方大炭素新材料科技股份有限公司 | High-thermal conductivity ultramicropore carbon brick and preparation method thereof |
| CN103613393B (en) * | 2013-11-11 | 2017-06-16 | 中冶南方邯郸武彭炉衬新材料有限公司 | A kind of blast furnace lining brick fuel and preparation method thereof |
| CN103880446A (en) * | 2014-03-03 | 2014-06-25 | 河南远洋新材料技术有限公司 | Anti-erosion high-temperature molded carbon brick |
| CN103951440B (en) * | 2014-03-03 | 2018-01-05 | 河南远洋新材料技术有限公司 | High heat conduction hot press moulding brick fuel |
| CN110015898A (en) * | 2018-01-09 | 2019-07-16 | 东洋炭素(浙江)有限公司 | A kind of graphite sealing material and preparation method thereof |
| CN110395985A (en) * | 2019-07-26 | 2019-11-01 | 石嘴山市长城碳素有限公司 | A kind of carbon furnace lining material production technology |
| CN110423097B (en) * | 2019-09-06 | 2021-12-28 | 西北工业大学 | Method for rapidly preparing building block without furnace at normal temperature |
| CN115504786A (en) * | 2022-08-29 | 2022-12-23 | 浙江工业大学 | High-strength hydrophilic porous graphite material and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100056A (en) * | 1986-10-16 | 1988-05-02 | 黒崎窯業株式会社 | Manufacture of alumina carbon brick for melting portion of metal melting furnace |
| JPH0380154A (en) * | 1989-08-22 | 1991-04-04 | Kawasaki Refract Co Ltd | Carbon brick |
| JPH03205362A (en) * | 1989-12-28 | 1991-09-06 | Kawasaki Refract Co Ltd | Graphite-silicon carbide refractory brick and production thereof |
| JP3080154B2 (en) * | 1997-08-28 | 2000-08-21 | 日本電気株式会社 | Magnetic disk drive |
| CN1290755A (en) * | 2000-10-18 | 2001-04-11 | 叶乐 | High corrosion resistant porous baked carbon brick for lining of blast furnace |
| JP3205362B2 (en) * | 1991-11-01 | 2001-09-04 | ワイケイケイ株式会社 | High strength, high toughness aluminum-based alloy |
| CN1683280A (en) * | 2004-04-15 | 2005-10-19 | 兰州海龙新材料科技股份有限公司 | High heat conductivity carbon brick for blast furnace and its producing method |
-
2005
- 2005-11-03 CN CNB2005100484903A patent/CN1293207C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63100056A (en) * | 1986-10-16 | 1988-05-02 | 黒崎窯業株式会社 | Manufacture of alumina carbon brick for melting portion of metal melting furnace |
| JPH0380154A (en) * | 1989-08-22 | 1991-04-04 | Kawasaki Refract Co Ltd | Carbon brick |
| JPH03205362A (en) * | 1989-12-28 | 1991-09-06 | Kawasaki Refract Co Ltd | Graphite-silicon carbide refractory brick and production thereof |
| JP3205362B2 (en) * | 1991-11-01 | 2001-09-04 | ワイケイケイ株式会社 | High strength, high toughness aluminum-based alloy |
| JP3080154B2 (en) * | 1997-08-28 | 2000-08-21 | 日本電気株式会社 | Magnetic disk drive |
| CN1290755A (en) * | 2000-10-18 | 2001-04-11 | 叶乐 | High corrosion resistant porous baked carbon brick for lining of blast furnace |
| CN1683280A (en) * | 2004-04-15 | 2005-10-19 | 兰州海龙新材料科技股份有限公司 | High heat conductivity carbon brick for blast furnace and its producing method |
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| CN1752218A (en) | 2006-03-29 |
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Address after: Luo Zhen Miao village in Gongyi City, Henan Province, 451251 * Patentee after: HENAN CROSSING OCEAN NEW MATERIALS TECHNOLOGY CO.,LTD. Address before: Luo Zhen Miao Gongyi city of Henan Province in 451251 Patentee before: HENAN CROSSING OCEAN NEW MATERIALS TECHNOLOGY CO.,LTD. |
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Application publication date: 20060329 Assignee: Gongyi Anzheng Refractory Materials Co.,Ltd. Assignor: HENAN CROSSING OCEAN NEW MATERIALS TECHNOLOGY CO.,LTD. Contract record no.: X2023980040981 Denomination of invention: Hot pressed fired carbon bricks for ironmaking blast furnace lining and hearth Granted publication date: 20070103 License type: Common License Record date: 20230904 |
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