Technical parameters of large-scale and efficient calcium oxide production line
The large-scale and efficient calcium oxide production line uses a rotary kiln as the core equipment, integrating preheaters, coolers, and automated control systems. Technical parameters directly affect production capacity and energy consumption. The following is the analysis of key parameters:
1. Core equipment parameters
Rotary kiln specifications: diameter range Ø 2.5 × 40m to Ø 5.1 × 72m, supporting a production capacity of 150-1200t/d. The kiln body is made of lightweight insulation on the outer layer and fire-resistant and wear-resistant composite bricks on the inner layer to reduce heat loss.
Calcination temperature: The temperature inside the kiln is controlled above 1000 ℃ to ensure sufficient decomposition of limestone. At the same time, the material is preheated to the decomposition temperature through a vertical preheater to increase system output.
Cooling system: The vertical cooler cools the calcined white to below ambient temperature+60 ℃, recovers waste heat to preheat the secondary air, and increases thermal efficiency by 10% -15%.
2. Energy consumption and environmental indicators
Unit energy consumption: less than 1150kCal/kg, far lower than traditional production lines, with significant energy-saving effects.
Exhaust emissions: Adopting a cyclone dust collector and a pulse bag filter for secondary dust removal, the exhaust emission concentration is ≤ 30mg/Nm ³, which meets environmental standards.
3. Automated control
PLC central control system: realizes full process automation, monitors parameters such as temperature, pressure, and current, and automatically alarms and adjusts in case of abnormalities.
Intelligent burner: Automatic control of air distribution, reducing fuel incomplete combustion losses and lowering nitrogen oxide emissions.
By optimizing technical parameters, large-scale and efficient calcium oxide production lines can achieve high production capacity, low energy consumption, and meet environmental standards, meeting the modern industrial demand for green production.
