JP4887730B2 - 焼結原料の造粒用バインダー及び造粒方法 - Google Patents
焼結原料の造粒用バインダー及び造粒方法 Download PDFInfo
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- JP4887730B2 JP4887730B2 JP2005307345A JP2005307345A JP4887730B2 JP 4887730 B2 JP4887730 B2 JP 4887730B2 JP 2005307345 A JP2005307345 A JP 2005307345A JP 2005307345 A JP2005307345 A JP 2005307345A JP 4887730 B2 JP4887730 B2 JP 4887730B2
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- binder
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- granulation
- water
- sintering
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- 239000011230 binding agent Substances 0.000 title claims description 90
- 239000002994 raw material Substances 0.000 title claims description 69
- 238000005245 sintering Methods 0.000 title claims description 65
- 238000005469 granulation Methods 0.000 title claims description 55
- 230000003179 granulation Effects 0.000 title claims description 54
- 238000000034 method Methods 0.000 title claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 239000000440 bentonite Substances 0.000 claims description 26
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 26
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 25
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 25
- 229910000278 bentonite Inorganic materials 0.000 claims description 25
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 16
- 229910001424 calcium ion Inorganic materials 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 235000019353 potassium silicate Nutrition 0.000 claims description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 15
- 239000008187 granular material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 49
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 28
- 230000000694 effects Effects 0.000 description 21
- 239000002245 particle Substances 0.000 description 20
- 239000011361 granulated particle Substances 0.000 description 16
- 239000000292 calcium oxide Substances 0.000 description 14
- 235000012255 calcium oxide Nutrition 0.000 description 14
- 239000007921 spray Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 6
- 239000000571 coke Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 230000008719 thickening Effects 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 235000011116 calcium hydroxide Nutrition 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000001879 gelation Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- 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 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal salts Chemical class 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 229910000281 calcium bentonite Inorganic materials 0.000 description 1
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 description 1
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229940043430 calcium compound Drugs 0.000 description 1
- 150000001674 calcium compounds Chemical class 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Description
製鉄研究第288号(1976)第9頁〜第18頁
バインダー500mlに消石灰5gを添加して10分間撹拌した後、API規格に基くファンネル粘度(500/500)を測定する。
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%)
ベントナイトA:ファンネル粘度(500/500)= 30秒
ベントナイトB:ファンネル粘度(500/500)= 43秒
ベントナイトC:ファンネル粘度(500/500)= 60秒
ベントナイトD:ファンネル粘度(500/500)=100秒
図1に示す方法で造粒を行った。
2,3 ベルトコンベア
4 ドラムミキサー
5 散水ノズル
6 バインダーの散布ノズル
Claims (5)
- 鉄鉱石を含み、かつカルシウムイオン発生源を含む焼結原料の造粒用バインダーであって、ベントナイトと重炭酸塩及び/又は炭酸塩とを含むことを特徴とする焼結原料の造粒用バインダー。
- 請求項1において、更に水ガラスを含むことを特徴とする焼結原料の造粒用バインダー。
- 鉄鉱石を含み、かつカルシウムイオン発生源を含む焼結原料にバインダーを添加して造粒する方法において、バインダーとしてベントナイトと重炭酸塩及び/又は炭酸塩とを添加することを特徴とする焼結原料の造粒方法。
- 請求項3において、ベントナイトと重炭酸塩及び/又は炭酸塩とを含むバインダーを用い、バインダー中の重炭酸塩及び/又は炭酸塩の含有量を調整することにより、被造粒物の粘性増加発現時間を制御することを特徴とする焼結原料の造粒方法。
- 請求項3又は4において、バインダーが更に水ガラスを含むことを特徴とする焼結原料の造粒方法。
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JP4887730B2 true JP4887730B2 (ja) | 2012-02-29 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2013181187A (ja) * | 2012-02-29 | 2013-09-12 | Nisshin Steel Co Ltd | 焼結原料の造粒方法 |
CN110093503B (zh) * | 2019-06-05 | 2020-11-24 | 东北大学 | 一种防止冷压铁焦炭化粘结的方法 |
CN113403473A (zh) * | 2021-06-21 | 2021-09-17 | 扬州泰富特种材料有限公司 | 一种强化超细磁铁精矿成球性的方法 |
CN113637844A (zh) * | 2021-07-26 | 2021-11-12 | 河南锦瀚环保科技有限公司 | 铁矿粉冷压球团粘结剂及其制备方法 |
CN113694785A (zh) * | 2021-08-03 | 2021-11-26 | 山东钢铁集团日照有限公司 | 烧结返矿喷洒团聚溶液提高制粒效果的混料装置及方法 |
CN115305352A (zh) * | 2022-07-30 | 2022-11-08 | 山东泰山钢铁集团有限公司 | 一种用于烧结配料中的烧结电除尘粉尘的造粒处理方法 |
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