JP4252883B2 - 高炭素フェロクロム風砕スラグの製造方法及び研掃材 - Google Patents
高炭素フェロクロム風砕スラグの製造方法及び研掃材 Download PDFInfo
- Publication number
- JP4252883B2 JP4252883B2 JP2003388381A JP2003388381A JP4252883B2 JP 4252883 B2 JP4252883 B2 JP 4252883B2 JP 2003388381 A JP2003388381 A JP 2003388381A JP 2003388381 A JP2003388381 A JP 2003388381A JP 4252883 B2 JP4252883 B2 JP 4252883B2
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- Japan
- Prior art keywords
- slag
- nozzle
- crushed
- carbon ferrochrome
- air
- 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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- 239000002893 slag Substances 0.000 title claims description 109
- 229910052799 carbon Inorganic materials 0.000 title claims description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 26
- 238000005422 blasting Methods 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 18
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 15
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 10
- 238000000889 atomisation Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 19
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000005498 polishing Methods 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 238000009991 scouring Methods 0.000 description 6
- 239000003082 abrasive agent Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 229910052956 cinnabar Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 101150006573 PAN1 gene Proteins 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Glanulating (AREA)
- Disintegrating Or Milling (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacture Of Iron (AREA)
- Furnace Details (AREA)
Description
CaO:CaO分があると強度が落ち、かつ脆くなり粉化し易くなるため、5.0質量%以下とする。
1620℃で電気炉より出湯され、凝固点は1260℃である。それ故1300〜1650℃間で風砕する。溶融スラグの流動性確保による細粒歩留り向上のため、1500℃以上が好ましい。
E/a値が大きい程、粒径が小さくなる。
a=溶融スラグ流量(Ton/Hr)
風砕直後の凝固層の発達が不充分な時点で着地又はフードに衝突したスラグは、扁平状のスラグとなる。この現象は(空気/スラグ)比と関係があり、このアトマイズ比(Nm3/分/スラグkg/分)が0.10以上であれば、殆ど全量球状スラグが得られる。
・超硬度:スピネル(MgO・Al2O3)や、フォルステライト(2(MgO0.96・FeO0.04)SiO2)が主鉱物組成であり、硬度が高く、さらに急冷することで超硬度となる。
・耐摩耗性:単に硬いだけでなく、摩耗に強く、耐久性にも優れている。
この発明の研掃材は、塗装下地処理などとしてのブラスト処理に使用される。
・コンプレッサー圧力:7kg/cm2
・ノズル先端圧力:5kg/cm2
・投射距離:80cm
・SS材、タールエポキシ樹脂塗料
2…タンデッシュ
3…風砕用メインノズル(メインノズル)
4…飛散防止用上ノズル(上ノズル)
5,5a…溶融スラグ
Claims (4)
- 成分Cr2O3:6質量%以下、MgO:20〜40質量%、Al2O3:20〜40質量%、SiO2:25〜45質量%、CaO:1〜5質量%で温度1300〜1650℃の高炭素フェロクロム溶融スラグを、風砕用メインノズルと風砕用メインノズルの上方に設けられる飛散防止用上ノズルを用いて風砕し、粒径0.1〜5.0mmの球状高炭素フェロクロム風砕スラグを製造する高炭素フェロクロム風砕スラグの製造方法。
- 前記風砕用メインノズルがラバールノズルであり、その風速が340m/sec以上で、アトマイズ比(Nm3/分/スラグkg/分)が0.10以上、また、前記飛散防止用上ノズルの風速が10〜200m/secであることを特徴とする請求項1に記載の高炭素フェロクロム風砕スラグの製造方法。
- 前記温度が1500〜1650℃に設定されることを特徴とする請求項1又は2に記載の高炭素フェロクロム風砕スラグの製造方法。
- 成分Cr2O3:6質量%以下、MgO:31〜37質量%、Al2O3:23〜31質量%、SiO2:30〜37質量%、CaO:1〜5質量%、SiO2/MgOの質量比が0.95以上で温度1300〜1650℃の高炭素フェロクロム溶融スラグを、風砕用メインノズルと風砕用メインノズルの上方に設けられる飛散防止用上ノズルを用いて風砕し、粒径0.1〜5.0mmの球状高炭素フェロクロム風砕スラグを製造する高炭素フェロクロム風砕スラグの製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003388381A JP4252883B2 (ja) | 2003-01-17 | 2003-11-18 | 高炭素フェロクロム風砕スラグの製造方法及び研掃材 |
CNB2003101197042A CN100366389C (zh) | 2003-01-17 | 2003-12-03 | 高碳铬铁风力粉碎矿渣的制造方法以及喷砂材料 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003009418 | 2003-01-17 | ||
JP2003388381A JP4252883B2 (ja) | 2003-01-17 | 2003-11-18 | 高炭素フェロクロム風砕スラグの製造方法及び研掃材 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004238276A JP2004238276A (ja) | 2004-08-26 |
JP4252883B2 true JP4252883B2 (ja) | 2009-04-08 |
Family
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JP2003388381A Expired - Lifetime JP4252883B2 (ja) | 2003-01-17 | 2003-11-18 | 高炭素フェロクロム風砕スラグの製造方法及び研掃材 |
Country Status (2)
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JP (1) | JP4252883B2 (ja) |
CN (1) | CN100366389C (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100392110C (zh) * | 2005-10-17 | 2008-06-04 | 邹汉伟 | 液态渣显热短距离回收方法及设备 |
CN100349685C (zh) * | 2005-12-09 | 2007-11-21 | 西南交通大学 | 一种螺柱焊方法 |
JP5617191B2 (ja) * | 2009-06-15 | 2014-11-05 | Jfeスチール株式会社 | 耐塗膜膨れ性に優れた船舶用鋼材 |
KR101562315B1 (ko) | 2010-08-26 | 2015-10-30 | 바오샨 아이론 앤 스틸 유한공사 | 고온 고상 강 슬래그의 처리 장치 |
KR101275148B1 (ko) * | 2011-10-31 | 2013-06-17 | 주식회사 에코마이스터 | 고속가스를 이용한 급냉 친환경 니켈슬래그볼, 그 제조방법 및 제조장치 |
KR101355460B1 (ko) * | 2011-12-27 | 2014-01-29 | 주식회사 에코마이스터 | 실리콘망간 슬래그 볼 및 그 제조방법 |
CN104471013B (zh) * | 2012-05-22 | 2016-11-02 | 爱知制钢株式会社 | 喷砂用研磨材料及其制造方法 |
KR101379456B1 (ko) | 2012-07-12 | 2014-03-31 | 주식회사 에코마이스터 | 기류 집적화 기능이 가능한 슬래그 볼 아토마이징 처리시스템 |
JP6070614B2 (ja) * | 2014-03-27 | 2017-02-01 | Jfeスチール株式会社 | 風砕スラグの製造装置、風砕スラグの製造方法および風砕スラグ |
JP6191675B2 (ja) * | 2014-11-06 | 2017-09-06 | Jfeスチール株式会社 | 製鋼スラグ粒子、製鋼スラグ、及び製鋼スラグ粒子の製造方法 |
CN106166465A (zh) * | 2016-06-28 | 2016-11-30 | 深圳市芭田生态工程股份有限公司 | 一种卧式熔融复合肥喷射造粒装置 |
CN111812045A (zh) * | 2020-06-30 | 2020-10-23 | 新兴铸管股份有限公司 | 测定高碳铬铁中磷含量的方法 |
CN115418420B (zh) * | 2022-09-26 | 2023-07-25 | 马鞍山钢铁股份有限公司 | 一种改善钢渣风碎结渣的处理装置及其处理方法 |
Family Cites Families (3)
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JPS5919533A (ja) * | 1982-07-26 | 1984-02-01 | Nippon Steel Corp | 溶融物の粒化方法 |
US5082483A (en) * | 1990-06-08 | 1992-01-21 | National Slag Limited | Enclosures for slag pelletization apparatus and method of operation thereof |
JP3793261B2 (ja) * | 1995-10-18 | 2006-07-05 | Jfeマテリアル株式会社 | 研掃材の製造方法およびその装置 |
-
2003
- 2003-11-18 JP JP2003388381A patent/JP4252883B2/ja not_active Expired - Lifetime
- 2003-12-03 CN CNB2003101197042A patent/CN100366389C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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CN1517179A (zh) | 2004-08-04 |
JP2004238276A (ja) | 2004-08-26 |
CN100366389C (zh) | 2008-02-06 |
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