Method for shortening refining time of SPHC steel
The invention discloses a method for shortening the refining time of SPHC steel. According to the method, good dynamic conditions in the converter steel tapping process are utilized, advanced slaggingmaterials are added to molten steel through an alloy chute before and after steel tapping, and the a...
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| creator | DU JINKE HU ZENGYUE NING WEI ZOU CHUNFENG REN KESHE YAN QING WANG QIANG NI PEILIANG LU BO GAO ZHIBIN WU WENJIAN WANG ZHONGGANG HU BIN |
| description | The invention discloses a method for shortening the refining time of SPHC steel. According to the method, good dynamic conditions in the converter steel tapping process are utilized, advanced slaggingmaterials are added to molten steel through an alloy chute before and after steel tapping, and the advanced slagging materials directly bear the impacts of steel tapping molten steel flow in the adding process, so that the molten steel in a steel ladle fully acts with the added slagging materials; and fast slagging of the steel tapping process is achieved, high-alkalinity ladle slag with certaindesulfuration capacity is made in advance, and the added ladle slag achieves a modifying and pre-deoxidizing effect on original slag in the steel ladle. After the molten steel enters an LF, re-slagging is not needed, the LF treatment time can be saved by 3-5 minutes, and the refining power consumption is reduced by 3-5 kilowatt/ton of steel; and the LF desulfuration efficiency is improved, and theeffect of removing occlude |
| format | Patent |
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According to the method, good dynamic conditions in the converter steel tapping process are utilized, advanced slaggingmaterials are added to molten steel through an alloy chute before and after steel tapping, and the advanced slagging materials directly bear the impacts of steel tapping molten steel flow in the adding process, so that the molten steel in a steel ladle fully acts with the added slagging materials; and fast slagging of the steel tapping process is achieved, high-alkalinity ladle slag with certaindesulfuration capacity is made in advance, and the added ladle slag achieves a modifying and pre-deoxidizing effect on original slag in the steel ladle. After the molten steel enters an LF, re-slagging is not needed, the LF treatment time can be saved by 3-5 minutes, and the refining power consumption is reduced by 3-5 kilowatt/ton of steel; and the LF desulfuration efficiency is improved, and theeffect of removing occlude</description><language>chi ; eng</language><subject>CHEMISTRY ; METALLURGY ; METALLURGY OF IRON ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191213&DB=EPODOC&CC=CN&NR=110564916A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191213&DB=EPODOC&CC=CN&NR=110564916A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DU JINKE</creatorcontrib><creatorcontrib>HU ZENGYUE</creatorcontrib><creatorcontrib>NING WEI</creatorcontrib><creatorcontrib>ZOU CHUNFENG</creatorcontrib><creatorcontrib>REN KESHE</creatorcontrib><creatorcontrib>YAN QING</creatorcontrib><creatorcontrib>WANG QIANG</creatorcontrib><creatorcontrib>NI PEILIANG</creatorcontrib><creatorcontrib>LU BO</creatorcontrib><creatorcontrib>GAO ZHIBIN</creatorcontrib><creatorcontrib>WU WENJIAN</creatorcontrib><creatorcontrib>WANG ZHONGGANG</creatorcontrib><creatorcontrib>HU BIN</creatorcontrib><title>Method for shortening refining time of SPHC steel</title><description>The invention discloses a method for shortening the refining time of SPHC steel. According to the method, good dynamic conditions in the converter steel tapping process are utilized, advanced slaggingmaterials are added to molten steel through an alloy chute before and after steel tapping, and the advanced slagging materials directly bear the impacts of steel tapping molten steel flow in the adding process, so that the molten steel in a steel ladle fully acts with the added slagging materials; and fast slagging of the steel tapping process is achieved, high-alkalinity ladle slag with certaindesulfuration capacity is made in advance, and the added ladle slag achieves a modifying and pre-deoxidizing effect on original slag in the steel ladle. After the molten steel enters an LF, re-slagging is not needed, the LF treatment time can be saved by 3-5 minutes, and the refining power consumption is reduced by 3-5 kilowatt/ton of steel; and the LF desulfuration efficiency is improved, and theeffect of removing occlude</description><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD0TS3JyE9RSMsvUijOyC8qSc3LzEtXKEpNywQzSjJzUxXy0xSCAzycFYpLUlNzeBhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvLOfoaGBqZmJpaGZozExagBWQCsE</recordid><startdate>20191213</startdate><enddate>20191213</enddate><creator>DU JINKE</creator><creator>HU ZENGYUE</creator><creator>NING WEI</creator><creator>ZOU CHUNFENG</creator><creator>REN KESHE</creator><creator>YAN QING</creator><creator>WANG QIANG</creator><creator>NI PEILIANG</creator><creator>LU BO</creator><creator>GAO ZHIBIN</creator><creator>WU WENJIAN</creator><creator>WANG ZHONGGANG</creator><creator>HU BIN</creator><scope>EVB</scope></search><sort><creationdate>20191213</creationdate><title>Method for shortening refining time of SPHC steel</title><author>DU JINKE ; HU ZENGYUE ; NING WEI ; ZOU CHUNFENG ; REN KESHE ; YAN QING ; WANG QIANG ; NI PEILIANG ; LU BO ; GAO ZHIBIN ; WU WENJIAN ; WANG ZHONGGANG ; HU BIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN110564916A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2019</creationdate><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><toplevel>online_resources</toplevel><creatorcontrib>DU JINKE</creatorcontrib><creatorcontrib>HU ZENGYUE</creatorcontrib><creatorcontrib>NING WEI</creatorcontrib><creatorcontrib>ZOU CHUNFENG</creatorcontrib><creatorcontrib>REN KESHE</creatorcontrib><creatorcontrib>YAN QING</creatorcontrib><creatorcontrib>WANG QIANG</creatorcontrib><creatorcontrib>NI PEILIANG</creatorcontrib><creatorcontrib>LU BO</creatorcontrib><creatorcontrib>GAO ZHIBIN</creatorcontrib><creatorcontrib>WU WENJIAN</creatorcontrib><creatorcontrib>WANG ZHONGGANG</creatorcontrib><creatorcontrib>HU BIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DU JINKE</au><au>HU ZENGYUE</au><au>NING WEI</au><au>ZOU CHUNFENG</au><au>REN KESHE</au><au>YAN QING</au><au>WANG QIANG</au><au>NI PEILIANG</au><au>LU BO</au><au>GAO ZHIBIN</au><au>WU WENJIAN</au><au>WANG ZHONGGANG</au><au>HU BIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for shortening refining time of SPHC steel</title><date>2019-12-13</date><risdate>2019</risdate><abstract>The invention discloses a method for shortening the refining time of SPHC steel. According to the method, good dynamic conditions in the converter steel tapping process are utilized, advanced slaggingmaterials are added to molten steel through an alloy chute before and after steel tapping, and the advanced slagging materials directly bear the impacts of steel tapping molten steel flow in the adding process, so that the molten steel in a steel ladle fully acts with the added slagging materials; and fast slagging of the steel tapping process is achieved, high-alkalinity ladle slag with certaindesulfuration capacity is made in advance, and the added ladle slag achieves a modifying and pre-deoxidizing effect on original slag in the steel ladle. After the molten steel enters an LF, re-slagging is not needed, the LF treatment time can be saved by 3-5 minutes, and the refining power consumption is reduced by 3-5 kilowatt/ton of steel; and the LF desulfuration efficiency is improved, and theeffect of removing occlude</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS |
| title | Method for shortening refining time of SPHC steel |
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