A SOLIDS INJECTION LANCE
    81.
    发明专利

    公开(公告)号:CA2910537C

    公开(公告)日:2022-05-10

    申请号:CA2910537

    申请日:2014-05-02

    Abstract: A method for injecting a solid feed material through a solids injection lance includes creating flow conditions in an injection passageway of the lance so that at least a part of the feed material flowing along the passageway forms a buffer zone between a wall of a tube that defines the passageway and feed material flowing along a central section of the passageway.

    DIRECT SMELTING PROCESS
    82.
    发明专利

    公开(公告)号:CA2799056C

    公开(公告)日:2021-02-16

    申请号:CA2799056

    申请日:2011-05-18

    Abstract: A molten bath-based direct smelting process comprises controlling the process conditions in a direct smelting vessel so that molten slag in a molten bath of metal and slag in the vessel has a viscosity in a range of 0.5-5 poise when the slag temperature is in a range of 1400-1550°C in the molten bath in the vessel.

    ЗАПУСК ПРОЦЕСУ ПЛАВКИ

    公开(公告)号:UA117562C2

    公开(公告)日:2018-08-27

    申请号:UAA201413612

    申请日:2013-07-18

    Abstract: Описанийспосібзапускупроцесуплавленняметаловмісногоматеріалу. Спосібвключаєвикористаннятепловогопотокуводоохолоджуванихелементівв нижніхчастинахплавильноїпосудинидлязабезпеченняіндикаціїтемпературиваннирозплавупідчасщонайменшеранньоїстадіїспособузапускуі регулюванняшвидкостейвпорскуваннякисневмісногогазута/абовуглецевогоматеріалув плавильнупосудинудлярегулюваннятемпературиваннирозплавупідчасзапускудлязапобіганняперевищеннюкритичнихрівнівтепловогопотокуі зупинкиспособузапуску.

    LANCE UNBLOCKING METHOD AND APPARATUS

    公开(公告)号:PH12017501484A1

    公开(公告)日:2018-01-29

    申请号:PH12017501484

    申请日:2017-08-16

    Abstract: A method of removing a blockage in a solids injection lance under normal operating conditions of a direct smelting vessel is disclosed. The direct smelting vessel contains a bath of molten metal and slag and the solids injection lance extends into the direct smelting vessel and has an outlet end that is submerged in the molten slag. The solids injection lance further has a single inlet coupled to a section of supply line that conveys gas and solid feed material to the solids injection lance. The method comprises (a) advancing a blockage-removing tool through the supply line section and through the solids injection lance to an upstream side of the blockage, (b) operating the tool under elevated gas pressure conditions to remove the blockage such that solid feed material and gas are able to flow through the solids injection lance. The method further comprises (c) retracting the tool from the solids injection lance and the supply line section. Also disclosed is an apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel.

    ИНИЦИИРОВАНИЕ ПРОЦЕССА ПЛАВКИ

    公开(公告)号:EA028690B1

    公开(公告)日:2017-12-29

    申请号:EA201492231

    申请日:2013-07-18

    Abstract: Описываетсяспособинициированияпроцессаплавкиметаллосодержащегоматериалав жидкойванне. Способвключаетприменениетепловогопотокаэлементовс водянымохлаждениемв нижнихучасткахплавильногоагрегатадляобеспеченияиндикациитемпературыжидкойваннывовремя, поменьшеймере, раннейстадииспособазапускаи регулировкускоростивводакислородсодержащегогазаи/илиуглеродистогоматериалав плавильныйагрегатдляуправлениятемпературойжидкойваннывовремязапускавоизбежаниепревышениякритическогоуровнятепловогопотокаи прерыванияспособазапуска.

    Starting a smelting process
    86.
    发明专利

    公开(公告)号:NZ702432A

    公开(公告)日:2017-01-27

    申请号:NZ70243213

    申请日:2013-07-18

    Abstract: A method of starting a molten bath-based process for smelting a metalliferous material is disclosed. The method includes using the heat flux of water-cooled elements in lower parts of a smelting vessel to provide an indication of molten bath temperature during at least an early part of the start-up method and adjusting injection rates of oxygen-containing gas and/or carbonaceous material into the smelting vessel to control the molten bath temperature during start-up without exceeding critical heat flux levels and tripping the start-up method.

    LANCE UNBLOCKING METHOD AND APPARATUS

    公开(公告)号:CA2976987A1

    公开(公告)日:2016-08-25

    申请号:CA2976987

    申请日:2016-02-16

    Abstract: A method of removing a blockage in a solids injection lance under normal operating conditions of a direct smelting vessel is disclosed. The direct smelting vessel contains a bath of molten metal and slag and the solids injection lance extends into the direct smelting vessel and has an outlet end that is submerged in the molten slag. The solids injection lance further has a single inlet coupled to a section of supply line that conveys gas and solid feed material to the solids injection lance. The method comprises (a) advancing a blockage-removing tool through the supply line section and through the solids injection lance to an upstream side of the blockage, (b) operating the tool under elevated gas pressure conditions to remove the blockage such that solid feed material and gas are able to flow through the solids injection lance. The method further comprises (c) retracting the tool from the solids injection lance and the supply line section. Also disclosed is an apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel.

Patent Agency Ranking