What fuel does a vertical lime kiln use to burn lime
As an important equipment for lime production, the fuel selection of a vertical lime kiln has a significant impact on the quality and efficiency of lime calcination. In actual production, anthracite and coking coal are commonly used fuels.
Anthracite is a high-quality fuel with high fixed carbon content and low volatile matter. When burned in a vertical lime kiln, anthracite can generate stable and persistent heat. The combustion process is relatively stable, and the flame temperature distribution is uniform, which is conducive to the full calcination of limestone. Moreover, the combustion of anthracite produces less ash content, which can reduce adhesion and erosion to the inner wall of the lime kiln and extend the service life of the kiln body. Meanwhile, the price of smokeless coal is relatively affordable, which reduces the cost of lime production.
Coking coal is also one of the commonly used fuels in vertical lime kilns. Coking coal has a high calorific value and can release a large amount of energy during combustion, which can quickly increase the temperature inside the kiln and meet the high temperature conditions required for lime calcination. It has good combustion performance, concentrated flames and high temperature, which can accelerate the decomposition reaction of limestone and improve production efficiency.
In practical applications, enterprises will choose anthracite or coking coal as the fuel for vertical lime kilns based on their own production needs, cost budgets, and local fuel supply, in order to achieve efficient and economical lime production.
