Ignition operation process and precautions for lime shaft kiln
Preparation for ignition operation process: Inspect all equipment parts of the shaft kiln to ensure that the fan, cloth distribution device, etc. are operating normally; clear debris inside the kiln, and evenly lay a layer of kindling with a thickness of about 200-300mm at the bottom of the kiln, such as firewood, dry branches, etc., and then cover it with a layer of coke 100-150mm thick.
Ignition: Place an appropriate amount of combustible materials, such as cotton yarn and waste oil, on the coke layer and ignite them from the kiln opening. Once the combustible materials have fully burned, the coke is ignited, forming a stable combustion area at the bottom of the kiln.
Feeding: When the coke is burning vigorously and the temperature at the kiln bottom rises to 600 - 700℃, start to slowly add limestone raw materials into the kiln, ensuring even distribution to avoid local accumulation.
Adjusting Air Volume: As the feeding and combustion progress, gradually adjust the air volume of the blower according to the flame condition and temperature changes inside the kiln, ensuring sufficient mixing of air and fuel to maintain stable combustion.
Safety first: Operators must wear protective equipment and keep away from the kiln opening to prevent injuries from flaming spray.
Temperature control: Pay close attention to temperature changes inside the kiln to avoid affecting the quality of lime due to excessively high or low temperatures.
Uniform cloth distribution: During the feeding process, it is necessary to ensure that the cloth is evenly distributed to prevent uneven burning.
Observe the flame: Regularly observe the color and combustion status of the flame inside the kiln. If the flame is abnormal, promptly adjust the air volume and feeding speed.
