JP2007113086A - 焼結原料の造粒方法 - Google Patents
焼結原料の造粒方法 Download PDFInfo
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- JP2007113086A JP2007113086A JP2005307343A JP2005307343A JP2007113086A JP 2007113086 A JP2007113086 A JP 2007113086A JP 2005307343 A JP2005307343 A JP 2005307343A JP 2005307343 A JP2005307343 A JP 2005307343A JP 2007113086 A JP2007113086 A JP 2007113086A
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- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
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- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
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- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical group O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 11
- 235000019353 potassium silicate Nutrition 0.000 claims description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 11
- 239000001856 Ethyl cellulose Substances 0.000 claims description 6
- 229920001249 ethyl cellulose Polymers 0.000 claims description 6
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 4
- 229920002907 Guar gum Polymers 0.000 claims description 4
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 4
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 4
- 239000000665 guar gum Substances 0.000 claims description 4
- 235000010417 guar gum Nutrition 0.000 claims description 4
- 229960002154 guar gum Drugs 0.000 claims description 4
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 4
- 229920005610 lignin Polymers 0.000 claims description 4
- 229920000609 methyl cellulose Polymers 0.000 claims description 4
- 239000001923 methylcellulose Substances 0.000 claims description 4
- 235000010981 methylcellulose Nutrition 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 239000008107 starch Substances 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 3
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims description 2
- -1 hydroxypropyl ethyl Chemical group 0.000 claims description 2
- 238000005245 sintering Methods 0.000 abstract description 39
- 239000011361 granulated particle Substances 0.000 abstract description 25
- 239000002245 particle Substances 0.000 abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 21
- 239000000843 powder Substances 0.000 abstract description 12
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- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005469 granulation Methods 0.000 description 26
- 230000003179 granulation Effects 0.000 description 25
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CPGKMLVTFNUAHL-UHFFFAOYSA-N [Ca].[Ca] Chemical compound [Ca].[Ca] CPGKMLVTFNUAHL-UHFFFAOYSA-N 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
【解決手段】鉄鉱石等の焼結原料に生石灰を配合し、散水を行って一次造粒を行った後、更に粘度が5〜100mPa・sの液状バインダーを添加して二次造粒を行って、含水率6〜9重量%の造粒物を得る。液状バインダーが焼結原料中の微粉を効率的に巻き込んで造粒し、これを造粒粒子内に安定化させる。このため、この造粒粒子は、焼結機内における加熱乾燥、焼成過程で崩壊、微粉の放出による通気性悪化の問題がなく、通気性を高く維持して焼結鉱の生産性を高めることができる。
【選択図】図1
Description
製鉄研究第288号(1976)第9頁〜第18頁
GI指数=((1−A’/A)+(1−B’/B))×100
A :粒径0.25〜0.5mmの真粒子の割合(重量%)
A’:粒径0.25〜0.5mmの造粒粒子の割合(重量%)
B :粒径0.25mm以下の真粒子の割合(重量%)
B’:粒径0.25mm以下の造粒粒子の割合(重量%)
焼結原料(各種鉄鉱石、蛇紋岩、珪石、石灰石、返鉱、粉コークス)に生石灰を表1に示す配合で添加した配合原料(含水率4重量%)をドラムミキサーに投入し、20rpmで回転させながら、散水下に一次造粒し、表1に示す含水率の一次造粒物を得た。散水は1分間かけて行い、回転時間は表1に示す通りとした。
2,3,6 ベルトコンベア
4 ドラムミキサー
4A 一次ドラムミキサー
4B 二次ドラムミキサー
Claims (5)
- 鉄鉱石等の焼結原料に生石灰を配合し、散水を行って一次造粒を行った後、更に粘度が5〜100mPa・sの液状バインダーを添加して二次造粒を行って、含水率6〜9重量%の造粒物を得ることを特徴とする焼結原料の造粒方法。
- 請求項1において、前記液状バインダーがベントナイト、グアーガム、ポリビニルアルコール、ポリアクリルアミド、メチルセルロース、エチルセルロース、カルボキシメチルセルロース、ヒドロキシエチルセルロース、ヒドロキシプロピルエチルセルロース、でんぷん、リグニン、及び水ガラスよりなる群から選ばれる1種又は2種以上を含むことを特徴とする焼結原料の造粒方法。
- 請求項2において、前記液状バインダーがベントナイトと水ガラスを含むことを特徴とする焼結原料の造粒方法。
- 請求項1ないし3のいずれか1項において、前記一次造粒と二次造粒とを個別のミキサーを用いて行うことを特徴とする焼結原料の造粒方法。
- 請求項1ないし3のいずれか1項において、前記一次造粒と二次造粒とを1台のミキサーを用いて行うことを特徴とする焼結原料の造粒方法。
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JP2005307343A JP4887728B2 (ja) | 2005-10-21 | 2005-10-21 | 焼結原料の造粒方法 |
CN 200610152822 CN1952185A (zh) | 2005-10-21 | 2006-10-20 | 烧结原料的造粒方法 |
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JP2005307343A JP4887728B2 (ja) | 2005-10-21 | 2005-10-21 | 焼結原料の造粒方法 |
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JP4887728B2 JP4887728B2 (ja) | 2012-02-29 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8206487B2 (en) | 2007-07-27 | 2012-06-26 | Kobe Steel, Ltd. | Method for producing carbon composite metal oxide briquettes |
CN102700954A (zh) * | 2012-06-14 | 2012-10-03 | 中冶北方(大连)工程技术有限公司 | 烧结球团粉料接受储存与配料系统 |
CN104611543A (zh) * | 2013-10-22 | 2015-05-13 | 瓦勒股份有限公司 | 改进粗球丸的装置及造球方法 |
JP2020063491A (ja) * | 2018-10-18 | 2020-04-23 | 日鉄日新製鋼株式会社 | 製鋼用塊成物の製造方法 |
JP2021176979A (ja) * | 2020-05-07 | 2021-11-11 | 株式会社神戸製鋼所 | 造粒水の製造方法及び鉄鉱石ペレットの製造方法 |
RU2815235C1 (ru) * | 2020-05-07 | 2024-03-12 | Кабусики Кайся Кобе Сейко Се (Кобе Стил, Лтд.) | Способ получения гранулирующей воды и способ получения железорудных окатышей |
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CN102002583B (zh) * | 2009-09-03 | 2012-07-25 | 西南科技大学 | 一种铁矿石粉球团化方法 |
JP5821362B2 (ja) * | 2010-07-30 | 2015-11-24 | Jfeスチール株式会社 | 焼結用原料の製造方法 |
CN103484665B (zh) * | 2013-10-14 | 2016-05-25 | 北京科技大学 | 采用不同粘结剂和两次成球方式制作冶金复合球团的方法 |
CN104004906A (zh) * | 2014-03-12 | 2014-08-27 | 北京宇航同辉能源科技有限公司 | 一种球团添加剂及其制备方法 |
CN104805280B (zh) * | 2015-04-30 | 2017-04-26 | 马钢(集团)控股有限公司 | 一种煤基法生产高品质电炉用金属炉料的工艺 |
CN109328238A (zh) * | 2016-06-22 | 2019-02-12 | 杰富意钢铁株式会社 | 内包炭材料的烧结矿的制造方法 |
CN110283995A (zh) * | 2019-07-31 | 2019-09-27 | 河北东慈环保科技有限公司 | 含炭铁粉球团的干粉粘合剂及其制备方法和应用 |
CN110592374B (zh) * | 2019-10-21 | 2021-05-28 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种转炉化渣剂球团及其成型用粘结剂 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000178662A (ja) * | 1998-10-05 | 2000-06-27 | Daicel Chem Ind Ltd | 粉末金属原料用造粒剤及び湿式造粒法 |
JP2000273553A (ja) * | 1999-03-26 | 2000-10-03 | Nippon Steel Corp | 焼結原料の造粒方法 |
-
2005
- 2005-10-21 JP JP2005307343A patent/JP4887728B2/ja active Active
-
2006
- 2006-10-20 CN CN 200610152822 patent/CN1952185A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000178662A (ja) * | 1998-10-05 | 2000-06-27 | Daicel Chem Ind Ltd | 粉末金属原料用造粒剤及び湿式造粒法 |
JP2000273553A (ja) * | 1999-03-26 | 2000-10-03 | Nippon Steel Corp | 焼結原料の造粒方法 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8206487B2 (en) | 2007-07-27 | 2012-06-26 | Kobe Steel, Ltd. | Method for producing carbon composite metal oxide briquettes |
CN102700954A (zh) * | 2012-06-14 | 2012-10-03 | 中冶北方(大连)工程技术有限公司 | 烧结球团粉料接受储存与配料系统 |
CN104611543A (zh) * | 2013-10-22 | 2015-05-13 | 瓦勒股份有限公司 | 改进粗球丸的装置及造球方法 |
JP2015096651A (ja) * | 2013-10-22 | 2015-05-21 | ヴァーレ、ソシエダージ、アノニマVale S.A. | 粗ペレットを改良する装置、およびペレット化方法 |
JP2020063491A (ja) * | 2018-10-18 | 2020-04-23 | 日鉄日新製鋼株式会社 | 製鋼用塊成物の製造方法 |
JP7115212B2 (ja) | 2018-10-18 | 2022-08-09 | 日本製鉄株式会社 | 製鋼用塊成物の製造方法 |
JP2021176979A (ja) * | 2020-05-07 | 2021-11-11 | 株式会社神戸製鋼所 | 造粒水の製造方法及び鉄鉱石ペレットの製造方法 |
WO2021225004A1 (ja) * | 2020-05-07 | 2021-11-11 | 株式会社神戸製鋼所 | 造粒水の製造方法及び鉄鉱石ペレットの製造方法 |
JP7419155B2 (ja) | 2020-05-07 | 2024-01-22 | 株式会社神戸製鋼所 | 鉄鉱石ペレットの製造方法 |
RU2815235C1 (ru) * | 2020-05-07 | 2024-03-12 | Кабусики Кайся Кобе Сейко Се (Кобе Стил, Лтд.) | Способ получения гранулирующей воды и способ получения железорудных окатышей |
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Publication number | Publication date |
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CN1952185A (zh) | 2007-04-25 |
JP4887728B2 (ja) | 2012-02-29 |
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