发明名称 |
DEVICE FOR GAS-JET CUT-OFF OF SLAG DURING METAL TAPPING FROM ARC FURNACE |
摘要 |
FIELD: metallurgy.SUBSTANCE: device is fitted with the radiation pyrometer intended for automatic detection by difference of temperatures between metal and slag of finish of tapping of liquid metal through the outlet of the tap hole and start of slag delivery on the drain trough, the bed is made with grooves for movement of the tuyere in horizontal and vertical directions with change of angle of its inclination with a possibility of providing of prime tapping of metal with preliminary cut-off of liquid slag inside the working space of the furnace. The tuyere on its end has a fire-resistant tip inside which the nozzle formed by two coaxially located tubes is located. The internal tube on its external surface is made with auger-type thread.EFFECT: invention allows to control more precisely gas-jet cut-off of slag at tapping of metal from the furnace by means of the mobile tuyere, and also to protect the metal surface from air oxidation in the furnace after slag cutoff and to minimise contact of the oxidized slag with metal.4 cl, 1 dwg |
申请公布号 |
RU2561633(C1) |
申请公布日期 |
2015.08.27 |
申请号 |
RU20140110908 |
申请日期 |
2014.03.24 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE AVTONOMNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "NATSIONAL'NYJ ISSLEDOVATEL'SKIJ TEKHNOLOGICHESKIJ UNIVERSITET "MISIS" |
发明人 |
MERKER EHDUARD EHDGAROVICH;TIMOFEEV PAVEL VITAL'EVICH;STEPANOV VIKTOR ALEKSANDROVICH |
分类号 |
F27D3/15;C21C5/46;F27B3/19 |
主分类号 |
F27D3/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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