Rotary kilns have long been responsible for the cement plant's important calcination tasks.
Rotary kilns have long been responsible for the cement plant's important calcination tasks. However, the rotary kiln mustfollow the thermal equilibrium distribution of the kiln system and maintain astable thermal system constantly. This is an important task for organizing thekiln system production.
Rotary kiln equipment has many functionsand good quality, which is why it can be used for a long time. During theformation of cement clinker, kaolin dewatering begins at about 450 ° C andcarbonate decomposition begins at around 800 ° C, and cement mineral formationbegins gradually. Until about 1450 ℃ burned clinker,began to cool again. Due to these physical and chemical reactions requiredifferent temperature environment, the required heat is also different,requiring cement kiln system has a certain heat distribution system. This isthe thermal system of the so-called kiln system, that is, the thermalequilibrium distribution of the kiln system.
For suspended pre-heating kilns andprecalciner kilns, the heat transfer between raw meal and high-temperatureairflow is fast. Materials in the kiln system residence time is short, rapidchemical reaction, so the thermal system is more sensitive to fluctuations.Thermal brake instability, the light will disrupt the normal order ofproduction, serious cases will result in blockage preheating system, and eventhreaten the safety of rotary kiln equipment, therefore, should pay specialattention to this.
Rotary kiln shoulder an important task,although the list is heavy, but as more advanced technology, rotary kilnequipment more advanced, I believe the cement industry will be getting betterand better.