Chimney curvature problem
Thread Content
In one coke oven, only two furnace columns had curvature values that were relatively high, reaching 42 mm, which exceeds the specified value of 30 mm. What are the common causes of increased curvature in furnace columns? How can one determine whether the furnace column still provides protection for the furnace body?
1. The steel columns have quality issues. 2. Periodic calibration is not carried out in a timely manner. 3. It is difficult to push out the coke cake, which gets stuck at the furnace door; thermal forces cause the furnace column to deform. 4. Tail coke is not cleaned in a timely manner. 5. Fire coming from the furnace door and from the furnace shoulder. Personally, I think the fifth option has a higher probability.
1. The load on the upper and lower large springs should be adjusted in a timely manner according to the production load and seasonal temperature changes. II. Prevent smoking and burning from the furnace door and its frame. III. Periodically inspect the small springs of the furnace column, and replace them promptly if they lose their elasticity.