How to control the temperature of lime kiln calcination activity
During the calcination process of lime kiln, temperature control is a key factor affecting the quality and production efficiency of lime. The following introduces control methods from multiple dimensions.
Accurate regulation of fuel supply is the foundation. Reasonably determine the type and amount of fuel based on the production capacity, raw material characteristics, and target temperature of the lime kiln. If coal is used, it should be ensured that its particle size is uniform and its calorific value is stable; When using natural gas, precise flow measurement is required. At the same time, it is equipped with an advanced automatic feeding system that dynamically adjusts the fuel supply based on real-time temperature feedback, ensuring that the temperature remains stable within the appropriate range.
Ventilation control cannot be ignored either. Good ventilation can provide sufficient oxygen for fuel combustion and promote heat release. By adjusting the speed of the fan and the opening of the air door, the air volume and speed entering the kiln can be controlled. Excessive air volume can easily carry away heat, leading to a decrease in temperature; The air volume is too low, the fuel combustion is not sufficient, and the temperature cannot rise.
Close attention should be paid to the situation of raw materials. The particle size and composition of limestone vary, and the temperature required for calcination also varies. Test and analyze the raw materials in advance, and adjust the calcination temperature parameters according to their characteristics. And regularly check the integrity of the kiln lining to avoid heat loss caused by damage to the kiln lining, which may affect the temperature control effect.
