Furnace structural integrity monitoring systems and methods
US-9791416-B2 · Oct 17, 2017 · US
Method of producing molten iron using electric furnace including video device
US2024085110A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024085110-A1 |
| Application number | US-202218263538-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 27, 2022 |
| Priority date | Feb 10, 2021 |
| Publication date | Mar 14, 2024 |
| Grant date | — |
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- Title
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Abstract
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To ensure stable supply of a cold iron source to a melting chamber, a method of producing molten iron uses an electric furnace that includes: a preheating chamber; a melting chamber; an extruder located in the preheating chamber; and a video device configured to observe an inside of the melting chamber, and comprises: an extrusion process of supplying a cold iron source preheated in the preheating chamber to the melting chamber by the extruder; and a melting process of melting the cold iron source supplied to the melting chamber by arc heat to obtain molten iron, wherein in the extrusion process, a moving amount of the extruder and/or a time interval for moving the extruder is controlled based on visual information obtained from the video device.
First claim
Opening claim text (preview).
1 . A method of producing molten iron using an electric furnace that includes a preheating chamber, and a melting chamber, wherein the electric furnace further includes an extruder located in the preheating chamber, and a video device configured to observe an inside of the melting chamber, and the method comprises: an extrusion process, performed in the preheating chamber, of supplying a cold iron source preheated in the preheating chamber to the melting chamber by the extruder; and a melting process, performed in the melting chamber, of melting the cold iron source supplied to the melting chamber by arc heat to obtain molten iron, wherein in the extrusion process, one or both of a moving amount of the extruder and a time interval for moving the extruder are controlled based on visual information obtained from the video device. 2 . The method of producing molten iron according to claim 1 , wherein in the extrusion process, one or both of increasing the moving amount and reducing the time interval are performed in the case where the visual information obtained from the video device indicates that the cold iron source is not supplied from the preheating chamber to the melting chamber. 3 . The method of producing molten iron according to claim 1 , wherein in the extrusion process, further, one or both of increasing the moving amount and reducing the time interval are performed in the case where an extrusion pressure of the extruder is 40 MPa or less. 4 . The method of producing molten iron according to claim 2 , wherein in the extrusion process, further, one or both of increasing the moving amount and reducing the time interval are performed in the case where an extrusion pressure of the extruder is 40 MPa or less.
Assignees
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Classifications
in electric furnaces · CPC title
Charging of the electric furnace · CPC title
Preheating scrap · CPC title
Screw feeders; Screw dischargers · CPC title
Ram or pusher apparatus · CPC title
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- What does patent US2024085110A1 cover?
- To ensure stable supply of a cold iron source to a melting chamber, a method of producing molten iron uses an electric furnace that includes: a preheating chamber; a melting chamber; an extruder located in the preheating chamber; and a video device configured to observe an inside of the melting chamber, and comprises: an extrusion process of supplying a cold iron source preheated in the preheat…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification F27B3/28. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Mar 14 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).