CN100354433C - 转炉冶炼方法 - Google Patents
转炉冶炼方法 Download PDFInfo
- Publication number
- CN100354433C CN100354433C CNB2006100203270A CN200610020327A CN100354433C CN 100354433 C CN100354433 C CN 100354433C CN B2006100203270 A CNB2006100203270 A CN B2006100203270A CN 200610020327 A CN200610020327 A CN 200610020327A CN 100354433 C CN100354433 C CN 100354433C
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- Prior art keywords
- slag
- terminal point
- converter
- temperature
- dephosphorization
- 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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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000003723 Smelting Methods 0.000 title claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 10
- 239000011574 phosphorus Substances 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 17
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- DPTATFGPDCLUTF-UHFFFAOYSA-N phosphanylidyneiron Chemical compound [Fe]#P DPTATFGPDCLUTF-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Abstract
Description
项目 | 参数 | 项目 | 参数 |
炉子全高H | 7470mm | 炉壳外径D | 5420mm |
炉口直径d0 | 2200mm | 高径比H/D | 1.38 |
熔池深度h1 | ~1100mm | 熔池直径(砌筑内径)d1 | 2200mm |
氧气工作压力 | 0.65~1.2MPa | 炉容比(V/T) | ~0.76 |
供氧强度 | ~3.8m3/t·min | 氧气最大瞬时流量 | 17000Nm3/h |
元素 | C% | Si% | P% | S% | 铁水温度℃ | ||
脱前 | 脱后 | 脱前 | 脱后 | ||||
含量 | 3.87 | ~0.35 | 0.149 | 0.047 | 0.017 | 1277 | 1266 |
Si | Mn | P | C | S | Cu | As |
0.95 | 0.73 | 0.181 | 4.08 | 0.047 | 0.115 | 0.037 |
化学成分,% | 物理性能 | |||||||
CaO | MgO | SiO2 | P | S | 生过烧率,% | H2O,% | 粒度,mm | 活性度mol/ml |
≥85 | ≤5 | ≤2.5 | ≤0.020 | ≤0.100 | ≤12 | ≤0.5 | 5~40 | ≥280 |
成分 | ∑(FeO+Fe2O3) | CaO | MgO | BaO | SiO2 | Al2O3 | P | S | H2O |
含量,% | ≥37% | ≥20% | ≤5% | 6~12% | ≤8% | ≤8% | ≤0.08% | ≤0.08% | ≤0.5% |
铁水,t | 废钢,t | 生铁,t | 总装量,t |
71.4 | 9.96 | 6.64 | 88 |
活性石灰,t | 白云石,t | 球型脱磷剂,t | 总渣量,t |
3.76 | 0.8 | 0.2 | 4.76 |
项目 | 碱度 | FeO | MgO |
初渣 | 2.5~3.5 | 10~13% | 6~8% |
终渣 | 3.0~4.5 | 10~15% | 6~12% |
钢铁料消耗kg/t | 转炉吹损率% | 氧耗m3/t | 石灰消耗kg/t | 冶炼周期min |
1110.27 | 9.93% | 58.89 | 47.44 | 38 |
拉碳成份(%)温度(℃) | 终点成份(%)温度(℃) | 初渣脱磷率,% | 终渣脱磷率,% | 最低终点[P]% | ||||||||
C | Mn | P | S | 温度 | C | Mn | P | S | 温度 | |||
0.11 | 0.08 | 0.009 | 0.020 | 1628 | 0.06 | 0.05 | 0.007 | 0.014 | 1643 | 93.8 | 95.20 | 0.004 |
FeO | SiO2 | CaO | MgO | 碱度R |
11.905 | 10.8 | 45.985 | 10.885 | 4.26 |
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100203270A CN100354433C (zh) | 2006-02-21 | 2006-02-21 | 转炉冶炼方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100203270A CN100354433C (zh) | 2006-02-21 | 2006-02-21 | 转炉冶炼方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1814814A CN1814814A (zh) | 2006-08-09 |
CN100354433C true CN100354433C (zh) | 2007-12-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100203270A Expired - Fee Related CN100354433C (zh) | 2006-02-21 | 2006-02-21 | 转炉冶炼方法 |
Country Status (1)
Country | Link |
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CN (1) | CN100354433C (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100453657C (zh) * | 2006-12-28 | 2009-01-21 | 武汉钢铁(集团)公司 | 单渣法生产高碳低磷钢水的转炉工艺 |
CN100451134C (zh) * | 2006-12-28 | 2009-01-14 | 武汉钢铁(集团)公司 | 双渣法生产高碳低磷钢水的转炉工艺 |
CN101314805B (zh) * | 2007-05-31 | 2010-10-13 | 上海梅山钢铁股份有限公司 | 中磷铁水转炉高效脱磷冶炼方法 |
CN101333578B (zh) * | 2007-06-29 | 2010-07-28 | 首钢总公司 | 一种高拉碳法生产高碳钢的方法 |
CN101363068B (zh) * | 2008-09-28 | 2010-06-23 | 首钢总公司 | 一种低磷钢水冶炼方法 |
CN102251072B (zh) * | 2010-08-23 | 2013-02-13 | 攀钢集团钢铁钒钛股份有限公司 | 电炉炼钢脱磷方法 |
CN102230052B (zh) * | 2011-07-19 | 2015-01-21 | 山东钢铁股份有限公司 | 单渣法生产高碳低磷钢水的顶底复吹转炉工艺 |
CN102776311A (zh) * | 2012-06-28 | 2012-11-14 | 辽宁天和科技股份有限公司 | 一种高磷铁水脱磷工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1009334B (zh) * | 1986-03-14 | 1990-08-29 | 约翰·索恩 | 空气净化器 |
KR20040042524A (ko) * | 2002-11-14 | 2004-05-20 | 주식회사 포스코 | 극저린강의 제조방법 |
JP2005206900A (ja) * | 2004-01-23 | 2005-08-04 | Kobe Steel Ltd | 転炉の操業方法 |
-
2006
- 2006-02-21 CN CNB2006100203270A patent/CN100354433C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1009334B (zh) * | 1986-03-14 | 1990-08-29 | 约翰·索恩 | 空气净化器 |
KR20040042524A (ko) * | 2002-11-14 | 2004-05-20 | 주식회사 포스코 | 극저린강의 제조방법 |
JP2005206900A (ja) * | 2004-01-23 | 2005-08-04 | Kobe Steel Ltd | 転炉の操業方法 |
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CN1814814A (zh) | 2006-08-09 |
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Assignee: Pangang Group Chengdu steel vanadium Co., Ltd. Assignor: Pangang Group Chengdu Iron & Steel Co., Ltd Contract fulfillment period: 2009.11.24 to 2015.11.24 contract change Contract record no.: 2009510000174 Denomination of invention: Top-bottom reblowing-converter smelting method for austenite stainless steel Granted publication date: 20071212 License type: Exclusive license Record date: 20091130 |
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Effective date of registration: 20101018 Address after: 610303, solidarity Road, Qingbaijiang District, Sichuan, Chengdu Co-patentee after: Pangang Group Chengdu Steel & Vanadium Co., Ltd. Patentee after: Pangang Group Steel Vanadium & Titanium Co., Ltd. Address before: 610000 Chengdu Sichuan Steel Group Chengdu iron and Steel Group Co., Ltd., Qingbaijiang District, Zhejiang Province Patentee before: Pangang Group Chengdu Iron & Steel Co., Ltd |
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