Multiple alarms and smoke exhaust problems in lime rotary kiln

The fault diagnosis of the lime rotary kiln production process is an important part of the system. It is based on system monitoring data, such as rotary kiln equipment status information, process parameter information, etc., to judge the accidents and failures in the production process, according to the fault diagnosis. The judgments made provide the operator with an alert. The performance of different rotary kiln alarms is not the same. This chapter discusses several types of alarms for failure of the lime rotary kiln.

Three levels of alarm levels are divided: low alarm, medium alarm, and high alarm. Different levels of alarms are distinguished by different colors of background and fonts, such as light yellow for low alarms, dark yellow for medium alarms, and red for altitude alarms. For example, a temperature measurement of 40°C produces a yellow low alarm indicating that the temperature measurement is a little bit too high and the operator needs to be careful; if the temperature continues to rise to 50°C, a dark yellow moderate alarm will be generated indicating the temperature The measured value is a bit high, and the operator should pay close attention and adjust it manually according to the instructions in the alarm message. If the temperature is still rising to 60°C, it means that the temperature measurement value is very high and a buzzer alarm will be generated. Rotary kiln operators need to perform emergency treatment, otherwise there will be major accidents.

Let's talk about the problem of exhaust fuction in rotary kiln. When the rotary kiln exhausts naturally, the exhaust gas will not pass the dust removal process. Due to the requirements of environmental protection, natural exhaust smoke is usually used as the emergency exhaust mode. When the exhaust gas of the rotary kiln needs to be treated by the dust removal equipment or the negative pressure operation system is adopted in the kiln, it is necessary to adopt mechanical smoke exhaust, that is, the exhaust smoke of the exhaust smoke machine and the mechanical smoke exhaust method. The configuration of natural chimney stacks for rotary kiln includes central chimneys, side chimneys, and top chimneys. Mechanical exhaust gas is used for rotary kiln exhaust gas. Exhaust gas is discharged from the periphery of the kiln top; exhaust gas is removed from the chimney, which is somewhat simple in structure and reliable in use. , And the use of the chimney natural exhaust; Exhaust gases from the central tube, the central smoke tube buried in the pre-tropical material layer, the main point is that it can enhance the rotary kiln central ventilation, the material column above the smoke pipe can play a storage material And the role of the seal, this type of exhaust smoke is more suitable for rotary kiln exhaust gas temperature is not too high.

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