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1. 发明授权

EP3012331B1 METHOD FOR DETECTING ABNORMALITY IN BLAST FURNACE, AND METHOD FOR OPERATING BLAST FURNACE 有权
公开(公告)号：EP3012331B1
公开(公告)日：2019-02-13
申请号：EP14814308.4
申请日：2014-06-13
申请人： JFE Steel Corporation
发明人： YAMAHIRA, Naoshi , KODAMA, Toshifumi , MORIKAWA, Yasuyuki , TANAKA, Yusuke
IPC分类号： C21B7/24 , C21B5/00 , F27D21/00 , C21B7/16 , C21C5/46 , F27D19/00

2. 发明公开

EP3012331A1 METHOD FOR DETECTING ABNORMALITY IN BLAST FURNACE, AND METHOD FOR OPERATING BLAST FURNACE 有权
标题翻译：一种用于在高炉故障检测和一种用于操作竖炉
公开(公告)号：EP3012331A1
公开(公告)日：2016-04-27
申请号：EP14814308.4
申请日：2014-06-13
申请人： JFE Steel Corporation
发明人： YAMAHIRA, Naoshi , KODAMA, Toshifumi , MORIKAWA, Yasuyuki , TANAKA, Yusuke
IPC分类号： C21B7/24 , C21B5/00 , F27D21/00
CPC分类号： C21C5/4673 , C21B7/163 , C21C5/48 , F27D19/00 , F27D2019/0078
摘要： Provided are a method for detecting an abnormality at a blast furnace with which the abnormality causing clogging of a tuyere can be detected at an early stage and a method for operating a blast furnace using the method for detecting the abnormality.
A camera 11 is disposed near a tuyere 2 of a blast furnace 1 and an image of a raceway unit is captured through an in-furnace monitor window 6 disposed at the tuyere 2. Then, an abnormality causing clogging of the tuyere unit is determined to have occurred when the brightness of the captured image captured by the camera 11 is determined to be lower than or equal to a threshold S and the rate of change in brightness is determined to be lower than or equal to a threshold R (the rate of decrease in brightness is determined to be lower than or equal to a threshold).
摘要翻译：提供的是用于在与使风口的堵塞，可以在早期阶段检测到异常和用于操作使用该方法用于检测异常的高炉的方法的高炉异常的检测的方法。照相机11被布置为靠近高炉1的风口2和滚道部的图像被捕获通过炉内监视窗口6设置在风口2。然后，在异常导致风口部的堵塞确定性开采到已发生时所拍摄的图像的亮度由照相机11被确定性开采为低于或等于阈值S和亮度的变化率被确定开采为低于或等于阈值R（下降率捕获在亮度为确定性的开采为低于或等于阈值）。

3. 发明授权

EP2653564B1 METHOD FOR OPERATING BLAST FURNACE 有权
公开(公告)号：EP2653564B1
公开(公告)日：2018-09-05
申请号：EP11856222.2
申请日：2011-07-15
申请人： JFE Steel Corporation
发明人： FUJIWARA, Daiki , MURAO, Akinori , WATAKABE, Shiro , MORIKAWA, Yasuyuki
IPC分类号： C21B5/00 , C21B7/00 , C21B5/06 , C21B7/16
CPC分类号： C21B5/001 , C21B5/003 , C21B5/06 , C21B7/163 , C21B2100/26 , C21B2100/60 , Y02P10/283
摘要： Provided is a method for operating a blast furnace in which further improvement in combustion temperature and further reduction of the specific consumption of reducing agents are possible. The mixture of a solid reducing agent and an inflammable reducing agent is injected through the same tube constituting a lance 4. For example, a solid reducing agent and an inflammable reducing agent are mixed and the mixture thereof is injected through a single tube lance 4. In addition, using a double tube lance 4 as the lance, while the mixture of a solid reducing agent and an inflammable reducing agent is injected through the inner tube of the double tube lance 4, a combustion improving gas is injected through the outer tube of the double tube lance. In addition, using a double tube lance 4 as the lance, while a combustion improving gas is injected through the inner tube of the double tube lance 4, the mixture of a solid reducing agent and an inflammable reducing agent is injected through the outer tube of the double tube lance. The solid reducing agent mainly consists of pulverized coal, and a utility gas, converter gas, blast furnace gas, coke oven gas and hydrogen are used as the inflammable reducing agent. O 2 is used as the combustion improving gas.

4. 发明公开

EP2653564A1 METHOD FOR OPERATING BLAST FURNACE 有权
标题翻译：操作高炉的方法
公开(公告)号：EP2653564A1
公开(公告)日：2013-10-23
申请号：EP11856222.2
申请日：2011-07-15
申请人： JFE Steel Corporation
发明人： FUJIWARA, Daiki , MURAO, Akinori , WATAKABE, Shiro , MORIKAWA, Yasuyuki
IPC分类号： C21B5/00 , C21B7/00
CPC分类号： C21B5/001 , C21B5/003 , C21B5/06 , C21B7/163 , C21B2100/26 , C21B2100/60 , Y02P10/283
摘要： Provided is a method for operating a blast furnace in which further improvement in combustion temperature and further reduction of the specific consumption of reducing agents are possible. The mixture of a solid reducing agent and an inflammable reducing agent is injected through the same tube constituting a lance 4. For example, a solid reducing agent and an inflammable reducing agent are mixed and the mixture thereof is injected through a single tube lance 4. In addition, using a double tube lance 4 as the lance, while the mixture of a solid reducing agent and an inflammable reducing agent is injected through the inner tube of the double tube lance 4, a combustion improving gas is injected through the outer tube of the double tube lance. In addition, using a double tube lance 4 as the lance, while a combustion improving gas is injected through the inner tube of the double tube lance 4, the mixture of a solid reducing agent and an inflammable reducing agent is injected through the outer tube of the double tube lance. The solid reducing agent mainly consists of pulverized coal, and a utility gas, converter gas, blast furnace gas, coke oven gas and hydrogen are used as the inflammable reducing agent. O 2 is used as the combustion improving gas.
摘要翻译：本发明提供一种高炉的运转方法，能够进一步提高燃烧温度，并且能够进一步降低还原剂的比耗。固体还原剂和可燃性还原剂的混合物通过构成喷枪4的同一管喷射。例如，将固体还原剂和可燃性还原剂混合，并将混合物通过单管喷枪4注入。另外，使用双管喷枪4作为喷枪，通过双管喷枪4的内管喷射固体还原剂和易燃还原剂的混合物，同时通过外管喷射燃烧改善气体双管喷枪。另外，使用双管喷枪4作为喷枪，在通过双管喷枪4的内管喷射燃烧改善气体的同时，通过外管喷射固体还原剂和易燃还原剂的混合物双管喷枪。固体还原剂主要由煤粉组成，煤气，转炉煤气，高炉煤气，焦炉煤气，氢气等作为易燃还原剂。 O2被用作燃烧改善气体。

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