The Optimum Time for Feeding of Rotary Kiln

Due to the reliable production and the wide application range, the rotary kiln is favored by the majority of customers. However, it is important to know some professional knowledge before operating the rotary kiln. Just taking the feeding of the rotary kiln as an example, what is the best time of the feeding?
Before the feeding, the burning zone and calciner in the rotary kiln should be fully preheated kiln, when increasing the air drafting in the kiln end, the oil injection of the kiln head and calciner should generally be appropriately increased so that the coal powder fire. When feeding, the operator must master the time lag between the ventilation and feeding. If the ventilation time is too early, the preheater temperature of the rotary kiln will be too high; if the ventilation is too late, the materials sedimentation could easily lead to the clogging. Generally, the feeding is conducted when the negative pressure is up to 1500pa, if the temperature is too high, the re-start cannot be conducted until the temperature is down. When feeding, in a short period of time, there are many projects needing operation, which should be operated in strict accordance with the feeding operating procedures. In order to ensure that the air volume and speed of the preheater system are relatively abundant, the operator should add the wind to the required amount of wind of the cooler in advance. In this case, in order not to make the kiln head generate positive pressure, the operator should increase the opening of the exhaust fan damper accordingly Kiln opening. Once the kiln begins to open the ventilation, this will keep the kiln head in a slight negative pressure and at the same time prevent the rotary kiln system from too high a degree of vacuum.
In addition, in order to make the coal powder realize the complete combustion, it is necessary to keep the appropriate flame shape and continue to retain and increase the appropriate fuel injection of the kiln head.

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