Method for reducing content of manganese oxide in slag
The invention discloses a method for reducing the content of manganese oxide in slag, and belongs to the technical field of metal smelting. The method comprises the steps of blast furnace tapping, converter smelting and LF refining, and is characterized in that a slag agent is added in the LF refini...
Gespeichert in:
| Hauptverfasser: | , , , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | LIANG SENQUAN HU XIANFENG ZHANG JIANPING XIAO SHUANGLIN XU YOUSHUN CHEN BING JIANG YUMING |
| description | The invention discloses a method for reducing the content of manganese oxide in slag, and belongs to the technical field of metal smelting. The method comprises the steps of blast furnace tapping, converter smelting and LF refining, and is characterized in that a slag agent is added in the LF refining process for electric slag feeding, after electric slag feeding is finished, argon is softly blown for a set time or longer, MnO in refining slag is controlled to be a first threshold value, and the alkalinity of the refining slag is adjusted to be a second threshold value; a first molten steel sample is taken, slag bonding, temperature measurement and oxygen determination are carried out, then ferromanganese, ferrosilicon and lime are sequentially added, MnO in the refining slag is controlled to be a third threshold value, and the alkalinity of the refining slag is adjusted to be a fourth threshold value; and the Si content in the steel is adjusted according to the silicon content of the first molten steel sampl |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN113564297A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN113564297A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN113564297A3</originalsourceid><addsrcrecordid>eNrjZDDzTS3JyE9RSMsvUihKTSlNzsxLV0jOzytJzStRyE9TyE3MS0_MSy1OVcivyExJVcjMUyjOSUznYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxzn6GhsamZiZGluaOxsSoAQB3gS04</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Method for reducing content of manganese oxide in slag</title><source>esp@cenet</source><creator>LIANG SENQUAN ; HU XIANFENG ; ZHANG JIANPING ; XIAO SHUANGLIN ; XU YOUSHUN ; CHEN BING ; JIANG YUMING</creator><creatorcontrib>LIANG SENQUAN ; HU XIANFENG ; ZHANG JIANPING ; XIAO SHUANGLIN ; XU YOUSHUN ; CHEN BING ; JIANG YUMING</creatorcontrib><description>The invention discloses a method for reducing the content of manganese oxide in slag, and belongs to the technical field of metal smelting. The method comprises the steps of blast furnace tapping, converter smelting and LF refining, and is characterized in that a slag agent is added in the LF refining process for electric slag feeding, after electric slag feeding is finished, argon is softly blown for a set time or longer, MnO in refining slag is controlled to be a first threshold value, and the alkalinity of the refining slag is adjusted to be a second threshold value; a first molten steel sample is taken, slag bonding, temperature measurement and oxygen determination are carried out, then ferromanganese, ferrosilicon and lime are sequentially added, MnO in the refining slag is controlled to be a third threshold value, and the alkalinity of the refining slag is adjusted to be a fourth threshold value; and the Si content in the steel is adjusted according to the silicon content of the first molten steel sampl</description><language>chi ; eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; METALLURGY OF IRON ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2021</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=20211029&DB=EPODOC&CC=CN&NR=113564297A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211029&DB=EPODOC&CC=CN&NR=113564297A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIANG SENQUAN</creatorcontrib><creatorcontrib>HU XIANFENG</creatorcontrib><creatorcontrib>ZHANG JIANPING</creatorcontrib><creatorcontrib>XIAO SHUANGLIN</creatorcontrib><creatorcontrib>XU YOUSHUN</creatorcontrib><creatorcontrib>CHEN BING</creatorcontrib><creatorcontrib>JIANG YUMING</creatorcontrib><title>Method for reducing content of manganese oxide in slag</title><description>The invention discloses a method for reducing the content of manganese oxide in slag, and belongs to the technical field of metal smelting. The method comprises the steps of blast furnace tapping, converter smelting and LF refining, and is characterized in that a slag agent is added in the LF refining process for electric slag feeding, after electric slag feeding is finished, argon is softly blown for a set time or longer, MnO in refining slag is controlled to be a first threshold value, and the alkalinity of the refining slag is adjusted to be a second threshold value; a first molten steel sample is taken, slag bonding, temperature measurement and oxygen determination are carried out, then ferromanganese, ferrosilicon and lime are sequentially added, MnO in the refining slag is controlled to be a third threshold value, and the alkalinity of the refining slag is adjusted to be a fourth threshold value; and the Si content in the steel is adjusted according to the silicon content of the first molten steel sampl</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</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><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDzTS3JyE9RSMsvUihKTSlNzsxLV0jOzytJzStRyE9TyE3MS0_MSy1OVcivyExJVcjMUyjOSUznYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxzn6GhsamZiZGluaOxsSoAQB3gS04</recordid><startdate>20211029</startdate><enddate>20211029</enddate><creator>LIANG SENQUAN</creator><creator>HU XIANFENG</creator><creator>ZHANG JIANPING</creator><creator>XIAO SHUANGLIN</creator><creator>XU YOUSHUN</creator><creator>CHEN BING</creator><creator>JIANG YUMING</creator><scope>EVB</scope></search><sort><creationdate>20211029</creationdate><title>Method for reducing content of manganese oxide in slag</title><author>LIANG SENQUAN ; HU XIANFENG ; ZHANG JIANPING ; XIAO SHUANGLIN ; XU YOUSHUN ; CHEN BING ; JIANG YUMING</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN113564297A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</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><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>LIANG SENQUAN</creatorcontrib><creatorcontrib>HU XIANFENG</creatorcontrib><creatorcontrib>ZHANG JIANPING</creatorcontrib><creatorcontrib>XIAO SHUANGLIN</creatorcontrib><creatorcontrib>XU YOUSHUN</creatorcontrib><creatorcontrib>CHEN BING</creatorcontrib><creatorcontrib>JIANG YUMING</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIANG SENQUAN</au><au>HU XIANFENG</au><au>ZHANG JIANPING</au><au>XIAO SHUANGLIN</au><au>XU YOUSHUN</au><au>CHEN BING</au><au>JIANG YUMING</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for reducing content of manganese oxide in slag</title><date>2021-10-29</date><risdate>2021</risdate><abstract>The invention discloses a method for reducing the content of manganese oxide in slag, and belongs to the technical field of metal smelting. The method comprises the steps of blast furnace tapping, converter smelting and LF refining, and is characterized in that a slag agent is added in the LF refining process for electric slag feeding, after electric slag feeding is finished, argon is softly blown for a set time or longer, MnO in refining slag is controlled to be a first threshold value, and the alkalinity of the refining slag is adjusted to be a second threshold value; a first molten steel sample is taken, slag bonding, temperature measurement and oxygen determination are carried out, then ferromanganese, ferrosilicon and lime are sequentially added, MnO in the refining slag is controlled to be a third threshold value, and the alkalinity of the refining slag is adjusted to be a fourth threshold value; and the Si content in the steel is adjusted according to the silicon content of the first molten steel sampl</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN113564297A |
| source | esp@cenet |
| subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Method for reducing content of manganese oxide in slag |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-08T03%3A00%3A21IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=LIANG%20SENQUAN&rft.date=2021-10-29&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN113564297A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |