VERFAHREN ZUM HARTBRENNEN VON EISENERZPELLETS AUF EINEM WANDERROST
1. Process for firing iron ore pellets having at least one part of haematite on a travelling grate under oxidising conditions by means of hot gases passed through, the pellets incorporating containing solid, carbon-containing material, which supplies part of the quantity of heat required for firing,...
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| creator | BOSS,KARLHEINZ CAPPEL,FRED,DR DADAZYNSKI,ROLF-PETER |
| description | 1. Process for firing iron ore pellets having at least one part of haematite on a travelling grate under oxidising conditions by means of hot gases passed through, the pellets incorporating containing solid, carbon-containing material, which supplies part of the quantity of heat required for firing, whereby the Cfix content of the solid, carbon-containing material incorporated in the pellets is 1.3 to 1.8 % weight, relative to the dry feed mixture in haematitic ores or relative to the haematitic part in mixtures of ores, the green pellets are charged on to the travelling grate at a temperature of 30 to 50 degrees C or are prewarmed to said temperature on said travelling grate by pressure drying, the warm pellets are passed through a suction drying zone and then are fired in the suction draught with a pressure of 20 to 40 mbar below atmospheric using hot gases of 1250 to 1350 degrees C. |
| format | Patent |
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Process for firing iron ore pellets having at least one part of haematite on a travelling grate under oxidising conditions by means of hot gases passed through, the pellets incorporating containing solid, carbon-containing material, which supplies part of the quantity of heat required for firing, whereby the Cfix content of the solid, carbon-containing material incorporated in the pellets is 1.3 to 1.8 % weight, relative to the dry feed mixture in haematitic ores or relative to the haematitic part in mixtures of ores, the green pellets are charged on to the travelling grate at a temperature of 30 to 50 degrees C or are prewarmed to said temperature on said travelling grate by pressure drying, the warm pellets are passed through a suction drying zone and then are fired in the suction draught with a pressure of 20 to 40 mbar below atmospheric using hot gases of 1250 to 1350 degrees C.</description><edition>4</edition><language>ger</language><subject>CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1986</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=19861204&DB=EPODOC&CC=DE&NR=3519666A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19861204&DB=EPODOC&CC=DE&NR=3519666A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BOSS,KARLHEINZ</creatorcontrib><creatorcontrib>CAPPEL,FRED,DR</creatorcontrib><creatorcontrib>DADAZYNSKI,ROLF-PETER</creatorcontrib><title>VERFAHREN ZUM HARTBRENNEN VON EISENERZPELLETS AUF EINEM WANDERROST</title><description>1. Process for firing iron ore pellets having at least one part of haematite on a travelling grate under oxidising conditions by means of hot gases passed through, the pellets incorporating containing solid, carbon-containing material, which supplies part of the quantity of heat required for firing, whereby the Cfix content of the solid, carbon-containing material incorporated in the pellets is 1.3 to 1.8 % weight, relative to the dry feed mixture in haematitic ores or relative to the haematitic part in mixtures of ores, the green pellets are charged on to the travelling grate at a temperature of 30 to 50 degrees C or are prewarmed to said temperature on said travelling grate by pressure drying, the warm pellets are passed through a suction drying zone and then are fired in the suction draught with a pressure of 20 to 40 mbar below atmospheric using hot gases of 1250 to 1350 degrees C.</description><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1986</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHAKcw1yc_QIcvVTiAr1VfBwDApxAnL8gPwwfz8FV89gVz_XoKgAVx8f15BgBcdQN6CYn6uvQrijn4trUJB_cAgPA2taYk5xKi-U5mZQcHMNcfbQTS3Ij08tLkhMTs1LLYl3cTU2NbQ0MzNzNDQmQgkA4CMrOQ</recordid><startdate>19861204</startdate><enddate>19861204</enddate><creator>BOSS,KARLHEINZ</creator><creator>CAPPEL,FRED,DR</creator><creator>DADAZYNSKI,ROLF-PETER</creator><scope>EVB</scope></search><sort><creationdate>19861204</creationdate><title>VERFAHREN ZUM HARTBRENNEN VON EISENERZPELLETS AUF EINEM WANDERROST</title><author>BOSS,KARLHEINZ ; CAPPEL,FRED,DR ; DADAZYNSKI,ROLF-PETER</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE3519666A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ger</language><creationdate>1986</creationdate><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>BOSS,KARLHEINZ</creatorcontrib><creatorcontrib>CAPPEL,FRED,DR</creatorcontrib><creatorcontrib>DADAZYNSKI,ROLF-PETER</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BOSS,KARLHEINZ</au><au>CAPPEL,FRED,DR</au><au>DADAZYNSKI,ROLF-PETER</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VERFAHREN ZUM HARTBRENNEN VON EISENERZPELLETS AUF EINEM WANDERROST</title><date>1986-12-04</date><risdate>1986</risdate><abstract>1. Process for firing iron ore pellets having at least one part of haematite on a travelling grate under oxidising conditions by means of hot gases passed through, the pellets incorporating containing solid, carbon-containing material, which supplies part of the quantity of heat required for firing, whereby the Cfix content of the solid, carbon-containing material incorporated in the pellets is 1.3 to 1.8 % weight, relative to the dry feed mixture in haematitic ores or relative to the haematitic part in mixtures of ores, the green pellets are charged on to the travelling grate at a temperature of 30 to 50 degrees C or are prewarmed to said temperature on said travelling grate by pressure drying, the warm pellets are passed through a suction drying zone and then are fired in the suction draught with a pressure of 20 to 40 mbar below atmospheric using hot gases of 1250 to 1350 degrees C.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| language | ger |
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| subjects | CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | VERFAHREN ZUM HARTBRENNEN VON EISENERZPELLETS AUF EINEM WANDERROST |
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