专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US3692293A Apparatus for blowing high-temperature reducing gas into blast furnace 失效
标题翻译：用于将高温还原气体吹入高炉的装置
公开(公告)号：US3692293A
公开(公告)日：1972-09-19
申请号：US3692293D
申请日：1971-04-21
申请人： NIPPON STEEL CORP
发明人： HARA YOSHIAKI , MASAGAKI AKIO , IGUCHI MASAAKI
IPC分类号： C21B7/00 , C21B5/00 , F27B1/28
CPC分类号： C21B5/001
摘要： An apparatus for blowing high-temperature reducing gas into a blast furnace comprising a device for settling the supply amounts of raw materials such as hydrocarbons, a raw material controlling device to control the supply amounts of hydrocarbons, oxygen (or air) and steam to a cracking furnace according to the signal of said supply amount settling device, a furnace pressure gauge provided in the blast furnace, a cut-off valve for branch pipe gas, a pressure control valve provided in a reducing gas exhaust pipe line, a producer gas pressure gauge provided in an inlet pipe line of said pressure control valve, and an indicator controller to calculate and instruct the degree of opening of said pressure control valve according to the signals from said supply amount settling device, the furnace pressure gauge and the producer gas pressure gauge, and also calculate and instruct the opening and closing of the cut-off valve for branch pipe gas.

2. 发明专利

AU2914971A METHOD FOR CONTROLLING FLOW RATE OF HIGH-TEMPERATURE GAS. 未知
公开(公告)号：AU2914971A
公开(公告)日：1972-11-23
申请号：AU2914971
申请日：1971-05-21
申请人： NIPPON STEEL CORP
发明人： HARA YOSHIAKI , MASAGAKI AKIO , ISHIMOTO TADASHI
IPC分类号： C21B5/00 , C21B7/24 , G01F1/684 , G01F1/688 , G05D

3. 发明专利

CA972153A APPARATUS FOR BLOWING HIGH-TEMPERATURE REDUCING GAS INTO BLAST FURNACE 未知
公开(公告)号：CA972153A
公开(公告)日：1975-08-05
申请号：CA114307
申请日：1971-05-28
申请人： NIPPON STEEL CORP
发明人： HARA YOSHIAKI , MASAGAKI AKIO , IGUCHI MASAAKI
IPC分类号： C21B7/00 , C21B5/00

4. 发明专利

JPS6213510A PRELIMINARY TREATMENT DEVICE FOR MOLTEN IRON 失效
公开(公告)号：JPS6213510A
公开(公告)日：1987-01-22
申请号：JP15056185
申请日：1985-07-09
申请人： NIPPON STEEL CORP
发明人： NISHIKAWA KIYOSHI , MASAGAKI AKIO , IMAI ATSUHIKO
IPC分类号： C21B7/14 , C21C1/00 , C21C1/02 , C21C1/04
摘要： PURPOSE:To permit an easy slag-off treatment and to prevent the hindrance of the passage of a molten iron by solidification of the residual iron by tiltably disposing a reaction vessel to the molten iron spout part between the large spout of a blast furnace and molten iron tilting spout and supplying a preliminary treatment agent to the molten iron dropped and poured into the reaction vessel. CONSTITUTION:The molten iron from which blase furnace slag is removed is dropped and poured from the molten iron spout 10 into the reaction vessel 11 and a desiliconizing agent is supplied by a lance 9 to the dropping position so as to react with the molten iron, by which the molten iron is separated to desiliconized slag 15 and desiliconized iron 16. The slat 15 and iron 16 are respectively discharged by a skimmer 12 to a desiliconized slag discharge spout part 13 and a desiliconized iron discharge spout part 14. The vessel 11 is tilted to the molten slag spout 17 side by a hydraulic cylinder 24 to discharge residual slag 41 to the spout 17 when there is no more inflow of the molten iron to the vessel 11 upon completion of one tapping. The reaction vessel is then tilted to the molten iron spout 18 side to discharge the residual iron 29 to the spout 18. The solidification of the residual iron 29 is thereby prevented and the failure in the next tapping and desiliconization treatment is averted.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式