Temperature for switching operating conditions of the coke tower
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There are two towers and one furnace in coking; when the towers are switched, coke is produced in Tower A – what is the temperature in Tower B? Things like steam supply at different pressures, water supply at different levels, preheating, etc. Are there operators for the coking unit? Let me give you some explanations
The bottom temperature of Tower B is not lower than 360℃
Is 360℃ the temperature of Tower B during low steam injection or high steam injection? When water is supplied, the temperature of Tower B definitely isn’t this high.
Generally, it is cooled below 80°C; after the cooling water has been drained, coking removal begins.
Is 360℃ the temperature of Tower B during low steam injection or high steam injection?
Light blowing starts right after the tower has been cut; the temperature at the lower part of the coke tower is 440； After a 1.5-hour period of light blowing, heavy steam is introduced; the temperature at the lower part of the coke tower is 430
So what kind of critical temperature is 360°C?
When cutting tar, we require a temperature of 330 at the bottom of the tower, but this is not absolute; in most cases this requirement is not met, and temperatures of 250 are also seen. There are no specific requirements regarding the temperature at the bottom of the tower for other operations. From the stage of steam supply to the later stages of water supply, the temperature keeps decreasing. To assess the effectiveness of tar cooling, one needs to look at the temperatures on the tower walls. As for the temperatures at the top and bottom of the tar removal tower, they must not exceed 140 when the lid is opened, due to the interlock mechanism in place
All Cheta needs to do is ensure that the temperature reaches the level required for thermal pyrolysis; a slightly lower temperature is not a problem, after all, the coke tower has a large volume. However, the temperature difference between the upper and lower parts should not be too large. There should not be too much liquid phase inside the tower
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