Coke oven roof repair or replacement
US-12559683-B2 · Feb 24, 2026 · US
Coke oven lining shape measuring method and coke oven wall repairing method
US2025382522A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025382522-A1 |
| Application number | US-202218876447-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 2, 2022 |
| Priority date | Aug 2, 2022 |
| Publication date | Dec 18, 2025 |
| Grant date | — |
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Abstract
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An oven lining shape measuring method includes installing a laser three-dimensional shape measuring device outside a carbonization chamber from which an oven door has been removed. The method further includes measuring an oven lining shape of the carbonization chamber with the laser three-dimensional shape measuring device. When T W is an oven temperature of the carbonization chamber, t is a time from removal of the oven door to a start of measurement with the laser three-dimensional shape measuring device, and L is a distance from an oven port to the laser three-dimensional shape measuring device, the oven lining shape of the carbonization chamber is measured after the time t and the distance L are determined to satisfy inequality (1): (10/t)/{(L+4)/5.5} 2 ×T W 4 ≤4.1×10 12 . . . (1).
First claim
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1 . A coke oven lining shape measuring method for measuring an oven lining shape in a coke oven, the method comprising: installing a laser three-dimensional shape measuring device outside a carbonization chamber from which an oven door has been removed; and measuring an oven lining shape of the carbonization chamber with the laser three-dimensional shape measuring device, wherein the oven lining shape is measured after (i) a time from removal of the oven door to a start of measurement with the laser three-dimensional shape measuring device and (ii) a distance from an oven port to the laser three-dimensional shape measuring device are determined to satisfy inequality (1), ( 10 / t ) / { ( L + 4 ) / 5.5 } 2 × T W 4 ≤ 4 . 1 × 1 0 1 2 ( 1 ) where T W is an oven temperature (K) of the carbonization chamber, t is the time (min) from removal of the oven door to the start of measurement with the laser three-dimensional shape measuring device, and L is a distance (m) from the oven port to the laser three-dimensional shape measuring device. 2 . The method according to claim 1 , wherein the time from removal of the oven door to the start of measurement with the laser three-dimensional shape measuring device is 10 minutes or longer. 3 . The method according to claim 1 , wherein the time from removal of the oven door to the start of measurement with the laser three-dimensional shape measuring device is within 60 minutes. 4 . A coke oven wall repairing method for repairing an oven wall in a coke oven, the method comprising repairing the oven wall of the carbonization chamber on the basis of the oven lining shape measured by the method according to claim 1 . 5 . A coke oven wall repairing method for repairing an oven wall in a coke oven, the method comprising repairing the oven wall of the carbonization chamber on the basis of the oven lining shape measured by the method according to claim 3 . 6 . The method according to claim 2 , wherein the time from removal of the oven door to the start of measurement with the laser three-dimensional shape measuring device is within 60 minutes. 7 . A coke oven wall repairing method for repairing an oven wall in a coke oven, the method comprising repairing the oven wall of the carbonization chamber on the basis of the oven lining shape measured by the method according to claim 2 . 8 . A coke oven wall repairing method for repairing an oven wall in a coke oven, the method comprising repairing the oven wall of the carbonization chamber on the basis of the oven lining shape measured by the method according to claim 6 .
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- What does patent US2025382522A1 cover?
- An oven lining shape measuring method includes installing a laser three-dimensional shape measuring device outside a carbonization chamber from which an oven door has been removed. The method further includes measuring an oven lining shape of the carbonization chamber with the laser three-dimensional shape measuring device. When T W is an oven temperature of the carbonization chamber, t is a t…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification C10B29/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Dec 18 2025 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).