JP2008133537A5 - - Google Patents
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- JP2008133537A5 JP2008133537A5 JP2007278332A JP2007278332A JP2008133537A5 JP 2008133537 A5 JP2008133537 A5 JP 2008133537A5 JP 2007278332 A JP2007278332 A JP 2007278332A JP 2007278332 A JP2007278332 A JP 2007278332A JP 2008133537 A5 JP2008133537 A5 JP 2008133537A5
- Authority
- JP
- Japan
- Prior art keywords
- coke
- furnace
- sieving
- sieve
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000571 coke Substances 0.000 claims description 47
- 238000007873 sieving Methods 0.000 claims description 12
- 230000002265 prevention Effects 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 2
- 238000005336 cracking Methods 0.000 claims 1
- 238000010298 pulverizing process Methods 0.000 description 3
Description
このような課題を解決するための本発明の特徴は以下の通りである。
(1)回転ドラム内でコークスを回転処理することにより、摩擦力及び落下衝撃を加えることで、前記コークス表面の脆弱部分の破壊と、前記コークス内部に存在する亀裂原因による前記コークスの破壊とを促進させて、前記コークスを塊状部と粉状部とに分離し、該分離した塊状部を竪型炉に装入して使用することを特徴とする竪型炉の操業方法。
(2)乾燥処理を施したコークスを、塊状部と粉状部とに分離することを特徴とする(1)に記載の竪型炉の操業方法。
(3)篩い分けにより、粒径6mm以上の篩い上を塊状部とすることを特徴とする(1)または(2)に記載の竪型炉の操業方法。
(4)コークスを竪型炉に装入する際に用いられ、コークスを回転処理する回転ドラムと、該回転ドラムから排出されたコークスを篩い分けする篩い分け装置と、該篩い分け装置により篩い分けされた篩い上を竪型炉の上部から装入する装入装置とを備えることを特徴とする炉内粉化防止設備。
(5)回転ドラムの内部に、コークスを持ち上げ、落下させるための攪拌翼を有することを特徴とする(4)に記載の炉内粉化防止設備。
(6)回転ドラム内でコークスの乾燥を行なうことを特徴とする(4)または(5)に記載の炉内粉化防止設備。
また上記課題は、以下の方法でも解決できる。
(1)コークスの表面に摩擦力を付与することで、前記コークスを塊状部と粉状部とに分離し、該分離した塊状部を竪型炉に装入して使用することを特徴とする竪型炉の操業方法。
(2)さらに、コークスに落下衝撃を付与することで、前記コークスを塊状部と粉状部とに分離することを特徴とする(1)に記載の竪型炉の操業方法。
(3)回転ドラム内でコークスを回転処理することにより前記コークスを塊状部と粉状部とに分離し、該分離した塊状部を竪型炉に装入して使用することを特徴とする竪型炉の操業方法。
(4)篩い分けにより、粒径6mm以上の篩い上を塊状部とすることを特徴とする(1)ないし(3)のいずれかに記載の竪型炉の操業方法。
(5)乾燥処理を施したコークスを、塊状部と粉状部とに分離することを特徴とする(1)ないし(4)のいずれかに記載の竪型炉の操業方法。
(6)回転ドラム内でコークスの乾燥を行なうことを特徴とする(3)に記載の竪型炉の操業方法。
(7)コークスを竪型炉に装入する際に用いられ、回転ドラムと、該回転ドラムから排出されたコークスを篩い分けする篩い分け装置と、該篩い分け装置により篩い分けされた篩い上を竪型炉の上部から装入する装入装置とを備えることを特徴とする炉内粉化防止設備。
(8)コークスの表面に摩擦力を付与することで、前記コークスを塊状部と粉状部とに分離し、該分離した塊状部を竪型炉に装入して使用することを特徴とする竪型炉装入用コークスの炉内粉化防止方法。
(9)さらに、コークスに落下衝撃を付与することで、前記コークスを塊状部と粉状部とに分離することを特徴とする(8)に記載の竪型炉装入用コークスの炉内粉化防止方法。
(10)篩い分けにより、粒径6mm以上の篩い上を塊状部とすることを特徴とする(8)または(9)に記載の竪型炉装入用コークスの炉内粉化防止方法。
(11)乾燥処理を施したコークスを、塊状部と粉状部とに分離することを特徴とする(8)ないし(10)のいずれかに記載の竪型炉装入用コークスの炉内粉化防止方法。
(12)回転ドラム内でコークスに摩擦力と落下衝撃とを付与することを特徴とする(9)ないし(11)のいずれかに記載の竪型炉装入用コークスの炉内粉化防止方法。
(13)回転ドラム内でコークスの乾燥を行なうことを特徴とする(12)に記載の竪型炉装入用コークスの炉内粉化防止方法。
The features of the present invention for solving such problems are as follows.
(1) Rotating the coke in a rotating drum to apply a frictional force and a drop impact, thereby destroying the fragile portion of the coke surface and destroying the coke due to a crack present inside the coke. A method for operating a vertical furnace characterized in that the coke is separated into a lump part and a powdery part, and the separated lump part is charged into a vertical furnace for use.
(2) The method for operating a vertical furnace according to (1), wherein the coke that has been subjected to a drying treatment is separated into a lump part and a powdery part.
(3) The method for operating a vertical furnace as described in (1) or (2), wherein the sieve is made into a lump by screening.
(4) Used when charging coke into the vertical furnace, rotating the coke, rotating the coke, sieving device for sieving the coke discharged from the rotating drum, and sieving by the sieving device An in-furnace powdering prevention facility comprising a charging device for charging the top of the sieve from the top of the vertical furnace.
(5) The in-furnace powdering prevention apparatus according to (4), further comprising a stirring blade for lifting and dropping coke inside the rotating drum.
(6) The in-furnace powdering prevention facility according to (4) or (5), wherein the coke is dried in a rotating drum.
The above problem can also be solved by the following method.
(1) The coke is separated into a lump part and a powdery part by applying a frictional force to the surface of the coke, and the separated lump part is charged into a vertical furnace and used. How to operate a vertical furnace.
(2) The method for operating a vertical furnace according to (1), wherein the coke is further separated into a lump part and a powdery part by applying a drop impact to the coke.
(3) Rotating coke in a rotating drum to separate the coke into a lump part and a powdery part, and charging the separated lump part into a vertical furnace for use. How to operate the mold furnace.
(4) The method for operating a vertical furnace according to any one of (1) to (3), wherein the sieve has a particle diameter of 6 mm or more is formed into a lump by sieving.
(5) The method for operating a vertical furnace according to any one of (1) to (4), wherein the coke subjected to the drying treatment is separated into a lump part and a powdery part.
(6) The method for operating a vertical furnace according to (3), wherein the coke is dried in a rotating drum.
(7) Used when charging coke into a vertical furnace, and a rotating drum, a sieving device for sieving the coke discharged from the rotating drum, and a sieve top screened by the sieving device. An in-furnace powdering prevention facility comprising a charging device for charging from an upper portion of a vertical furnace.
(8) The coke is separated into a lump part and a powdery part by applying a frictional force to the surface of the coke, and the separated lump part is charged into a vertical furnace and used. Method for preventing in-furnace powdering of coke for vertical furnace charging.
(9) Further, the coke powder in the vertical furnace charging coke according to (8), wherein the coke is separated into a lump part and a powdery part by applying a drop impact to the coke. Prevention method.
(10) The method for preventing in-furnace pulverization of the coke for vertical furnace charging according to (8) or (9), wherein the sieve has a particle diameter of 6 mm or more to be a lump by sieving.
(11) In-furnace coke for vertical furnace charging coke according to any one of (8) to (10), wherein the coke that has been subjected to the drying treatment is separated into a lump part and a powdery part Prevention method.
(12) A method for preventing in-furnace pulverization of vertical furnace charging coke according to any one of (9) to (11), wherein frictional force and drop impact are applied to the coke in the rotating drum. .
(13) The method for preventing pulverization of coke in a vertical furnace charging as described in (12), wherein the coke is dried in a rotating drum.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007278332A JP5211637B2 (en) | 2006-10-27 | 2007-10-26 | How to operate a vertical furnace |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006292183 | 2006-10-27 | ||
JP2006292183 | 2006-10-27 | ||
JP2007278332A JP5211637B2 (en) | 2006-10-27 | 2007-10-26 | How to operate a vertical furnace |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012213450A Division JP5488662B2 (en) | 2006-10-27 | 2012-09-27 | In-furnace powdering prevention equipment |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008133537A JP2008133537A (en) | 2008-06-12 |
JP2008133537A5 true JP2008133537A5 (en) | 2010-12-02 |
JP5211637B2 JP5211637B2 (en) | 2013-06-12 |
Family
ID=39558576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007278332A Active JP5211637B2 (en) | 2006-10-27 | 2007-10-26 | How to operate a vertical furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5211637B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4992407B2 (en) * | 2006-12-18 | 2012-08-08 | Jfeスチール株式会社 | Hot metal production method using vertical scrap melting furnace |
JP4893290B2 (en) * | 2006-12-18 | 2012-03-07 | Jfeスチール株式会社 | Hot metal production method using vertical scrap melting furnace |
JP4893291B2 (en) * | 2006-12-18 | 2012-03-07 | Jfeスチール株式会社 | Hot metal production method using vertical scrap melting furnace |
JP2009102487A (en) * | 2007-10-22 | 2009-05-14 | Kansai Coke & Chem Co Ltd | Cokemaking method and cokemaking apparatus |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5896678A (en) * | 1981-12-02 | 1983-06-08 | Kawasaki Steel Corp | Method for controlling grain size and strength of coke |
JPS6213922A (en) * | 1985-07-10 | 1987-01-22 | Kawasaki Steel Corp | Pretreatment of coke for metallurgy |
JPS6268887A (en) * | 1985-09-19 | 1987-03-28 | Kobe Steel Ltd | Method of improving yield of massive coke to be fed to blast furnace |
JPH0961059A (en) * | 1995-08-29 | 1997-03-07 | Kawasaki Steel Corp | Device for drying iron manufacturing raw material |
JPH11189832A (en) * | 1997-12-25 | 1999-07-13 | Kawasaki Steel Corp | Treatment of zinc-containing powdery material |
JP2005194462A (en) * | 2004-01-09 | 2005-07-21 | Nippon Steel Corp | Method for estimating surface-breaking strength of coke |
JP4946119B2 (en) * | 2006-03-24 | 2012-06-06 | Jfeスチール株式会社 | Drying and preheating equipment for hopper and blast furnace raw materials |
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2007
- 2007-10-26 JP JP2007278332A patent/JP5211637B2/en active Active
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