Problem with the furnace column curvature formula
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This post was last edited by 【Coking】Chang Jiangning on 2017-1-9 20:23. The curvature formula is: (A–B) + (C–A)h/H. I would like to ask why the constant h/H is usually set at 0.52 Our factory uses 5.5-meter furnaces.
h is the distance from line 1 to line 2, while H is the distance from line 1 to line 3. During installation and furnace heating, appropriate adjustments are often made to ensure that the data related to lines 1, 2, and 3 can be measured easily, or to avoid certain unfavorable areas; as a result, the ratio may vary from one factory to another.
This is easy to explain: h is the distance from the upper line to the middle line, while H is the distance from the upper line to the lower line. Just measure it in practice, and you can calculate it. Some coking plants use different coefficients for their two coke ovens as well.
That is to say, the actual constant needs to be measured and calculated; 0.52 is not necessarily accurate.
That’s for sure; in many cases, installing the measuring frame according to the drawings makes it difficult to carry out measurements. For example, when the steel wire is at the same level as a small spring on the furnace column, the steel ruler is blocked by the spring clip and cannot reach the protective plate, which requires moving the position of the measuring frame up or down.
Select at least three locations for measurement: two locations on the survey frames and one location right in the middle. After making the measurements, calculate the three coefficients obtained, and then take their average.
Which coking plant does Chang Jiangning work for? This name sounds very familiar.