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After the lime rotary kiln has been used for a long time, if the maintenance and other work are not done well, it will inevitably be affected by some factors and cause problems. Among the many problems, many people are more confused about why the device produces black smoke. So the editor below will give you an analysis of the reasons and solutions.
Causes of smoking in rotary kiln:
1. The ventilation effect in the kiln is not good, and the quality of the calcined fuel in the kiln is not good, so the probability of black smoke is increased;
2. The kiln is too large and the temperature in the kiln is not high, which may also emit black smoke;
3. There is also poor quality of pulverized coal, especially low volatilization, high moisture content, coarse fineness, and black smoke is discharged from unburned pulverized coal. The reasons that appear in actual production are complex and changeable, and need to be carefully grasped by the staff.
When the rotary kiln produces black smoke, our solution can be based on the above reasons for targeted solutions. The black smoke from the kiln means that the fuel pulverized coal has not been burnt, and it is discharged. Moreover, once the black smoke of the kiln is produced, it is very easy to affect the intensity of the flame and the quality of the calcination of the material. Therefore, when solving this problem, start with the full combustion of the fuel in the kiln.
Through the introduction in the above article, we have learned that the reasons that affect the black smoke produced by the lime rotary kiln are the ventilation effect in the kiln, the temperature in the kiln and the quality of the coal powder. After understanding the reason, we can avoid the black smoke by adjusting the above points appropriately during the operation of the kiln.