
1. Introduction to Rotary Kiln Control System
The rotary kiln intelligent control system is a full-process automation solution developed specifically for industries such as cement, metallurgy, and chemical engineering. The system adopts a DCS+AI algorithm architecture, integrating core functions such as temperature control, speed adjustment, and combustion optimization to achieve temperature control, energy saving, consumption reduction, and stable operation during the rotary kiln production process. It can increase output by 15%-30% and reduce coal consumption by 8%-15%.
2. System Architecture
1. Control Layer
DCS Control System: Using Siemens PCS7/ABB 800xA platform
PLC Redundant Control: Dual-machine hot standby at key points, MTBF > 100,000 hours
Interlock System: Complies with SIL2 safety level requirements
2. Detection Layer
Detection Items Technical Solutions Accuracy Level
Kiln Body Temperature Infrared Thermal Imager + Thermocouple Array ±1℃
Material Composition Online X-ray Fluorescence Analyzer 0.01%
Gas Composition Gas Analysis System ppm level
Kiln Body Deformation Laser Displacement Sensor 0.1mm
3. Execution Layer
Variable Frequency Speed Control System: Kiln speed control accuracy ±0.1 rpm
Intelligent Combustion System: Multivariable decoupling control algorithm
Hydraulic Tire System: Displacement control accuracy ±0.5 mm
3. Core Functions
1. Intelligent Temperature Control
Precise multi-zone temperature regulation (preheating zone, decomposition zone, firing zone, cooling zone) with adaptive PID algorithm based on material characteristics; temperature fluctuations controlled within ±5℃
2. Combustion Optimization System
Real-time optimization of air-fuel ratio; coordinated control of multiple fuels (pulverized coal, natural gas, refuse-derived fuel); NOx emissions reduced by 30%-50%
3. Kiln Health Management
Real-time monitoring of kiln ovality and axial displacement; balanced control of roller loads
Predictive maintenance alerts
4. Technical Advantages
Precise Control: Calcining zone temperature control accuracy ±3℃
Energy Saving and Consumption Reduction: Thermal efficiency improved by 10%-15%
Stable Operation: System availability > 99.5%
Intelligent Diagnosis: Fault warning accuracy > 95%
5. Technical Services
Customized Development: Tailored control strategies based on process requirements
Remote Operation and Maintenance: 24/7 technical support
Technical Training: Providing system operation and maintenance training
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Rotary Kiln Control System
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No.99 Hengshan Road, Jianxi District, Luoyang City, Henan Province

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