公开(公告)号：US10518216B2

公开(公告)日：2019-12-31

申请号：US15772739

申请日：2016-11-02

申请人： DANIELI CORUS B.V.

发明人： Wouter Bernd Ewalts ,  Pieter Dirk Klut

IPC分类号： B01D53/12 ,  B01D53/40 ,  B01D53/83 ,  C10K1/02 ,  C10K1/32 ,  C21B7/00 ,  C21C5/40 ,  F27D17/00 ,  F27B1/10 ,  F27B3/10

摘要： A process and a device for treating a flow of furnace gas with a pressure of more than 1 bar flowing through a channel. A powder agent, such as a powder comprising alkali reagents, such as lime, and/or absorbents, such as activated coal, is injected under an overpressure into the furnace gas flow via an injector which is positioned centrally within the channel. The powder agent may be fluidized. The pressure for injecting the powder may be adjusted by controlling the volume of fluidization gas vented via a venting outlet.

公开(公告)号：US20180311613A1

公开(公告)日：2018-11-01

申请号：US15772739

申请日：2016-11-02

申请人： DANIELI CORUS B.V.

发明人： Wouter Bernd Ewalts ,  Pieter Dirk Klut

IPC分类号： B01D53/83 ,  B01D53/12 ,  B01D53/40 ,  C21B7/00 ,  C21C5/40 ,  C10K1/02 ,  C10K1/32 ,  F27D17/00

CPC分类号： B01D53/83 ,  B01D53/10 ,  B01D53/12 ,  B01D53/40 ,  B01D53/44 ,  B01D2251/404 ,  B01D2253/102 ,  B01D2257/2045 ,  B01D2257/2047 ,  B01D2257/304 ,  B01D2257/60 ,  B01D2257/7027 ,  B01D2258/025 ,  B01D2259/128 ,  C10J3/00 ,  C10K1/024 ,  C10K1/20 ,  C10K1/32 ,  C21B7/002 ,  C21B2100/44 ,  C21C5/40 ,  C21C2100/02 ,  F27B1/10 ,  F27B3/10 ,  F27D17/008 ,  Y02P10/283

摘要： A process and a device for treating a flow of furnace gas with a pressure of more than 1 bar flowing through a channel. A powder agent, such as a powder comprising alkali reagents, such as lime, and/or absorbents, such as activated coal, is injected under an overpressure into the furnace gas flow via an injector which is positioned centrally within the channel The powder agent may be fluidized. The pressure for injecting the powder may be adjusted by controlling the volume of fluidization gas vented via a venting outlet.

公开(公告)号：US20200240711A1

公开(公告)日：2020-07-30

申请号：US15770054

申请日：2016-10-14

申请人： DANIELI CORUS B.V.

发明人： Wouter Bernd Ewalts ,  Pieter Dirk Klut

IPC分类号： F27D17/00 ,  C21B7/22 ,  C21C5/38

摘要： A process and a plant for cleaning furnace gas includes utilizing one or more sensors to continuously monitor one or more parameters indicative for an expected temperature peak in the blast furnace gas flow. The gas flow is then passed through a conditioning tower. In case the measured parameter exceeds a predefined limit value, a coolant, such as water, is sprayed into the blast furnace gas flow in the conditioning tower. Subsequently the flow of blast furnace gas passes one or more filter stations.

公开(公告)号：US20180304185A1

公开(公告)日：2018-10-25

申请号：US15770061

申请日：2016-10-14

申请人： DANIELI CORUS B.V.

发明人： Wouter Bernd Ewalts ,  Pieter Dirk Klut

IPC分类号： B01D46/00 ,  B01D46/02 ,  B01D46/04 ,  C21B7/22 ,  C21C5/40 ,  F23J15/02

CPC分类号： B01D46/0068 ,  B01D46/023 ,  B01D46/04 ,  C21B7/22 ,  C21B2100/44 ,  C21C5/40 ,  C21C2100/02 ,  F23J15/025 ,  F27D17/008 ,  Y02P10/283

摘要： Process and device for cleaning furnace gas includes flowing in a main flow direction (A) the furnace gas passes an array of bag filters. Filtered furnace gas having passed the filter bags, is partly returned via one or more nozzles which are moved along downstream ends of the bag filters. Each bag filter is passed at least once by at least one nozzle during a cycle. A nozzle passing a bag filter blows filtered furnace gas in a backflow direction (B) through said bag filter. The backflow direction is opposite to the main flow direction.