Non-uniform coke discharge temperature in dry quenching coke ovens
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The designed capacity of the dry quenching coke oven is 150 tons per hour, with an actual operating capacity of 75%； The dry quenching fan is located on the west side of the dry quenching furnace body. Eight thermometers are installed in the cooling section, evenly distributed in the east, west, south, and north directions. The readings from the two thermometers on the east side are more than 100°C higher than those of the three thermometers at the same level, resulting in uneven temperature distribution of the coke – some pieces having a temperature of 250–300°C while others have a temperature of 160–170°C. In other words, the coke located near the fan can be fully quenched, whereas the coke further away from the fan cannot be fully quenched. Please ask all the experts to help analyze it
Based on your description, the reasons for the uneven temperature of the coke discharged from the dry quenching furnace may be as follows: 1. Location of the dry quenching fan: You mentioned that the fan is located on the west side of the dry quenching furnace itself. This could result in the coke on the west side being exposed to greater air cooling, while the coke on the east side receives less air cooling. 2. Thermometer distribution: You mentioned that the thermometers are located in the east, west, south, and north directions. The two thermometers on the east side show temperatures 100°C higher than those of the three thermometers at the same level, which indicates that the temperature is higher on the east side; this may be due to uneven air flow. 3. Actual load: You mentioned that the actual production load is 75% of the design load; if the amount of coke in the furnace is relatively low, the problem of uneven distribution of air cooling may become more apparent. To address the above issues, you can consider the following solutions: 1. Adjust the position of the dry quenching fan: Place the fan in a more even position to ensure that the cooling effect on the coke is distributed evenly. 2. Adjust the thermometer’s position: Reposition the thermometer to ensure more accurate measurement of temperatures in all directions, thereby facilitating timely adjustments. 3. Consider adjusting the production load: If the actual load is low, it is possible to increase the amount of coke used in order to add more material to the furnace, thereby addressing the issue of uneven distribution of air cooling. It should be noted that the suggestions above are for reference only; specific solutions need to be determined through detailed analysis and adjustment based on your actual circumstances. .