How to adjust the combustion system when the lime shaft kiln is biased
Lime shaft kiln is the key equipment in the process of lime production. The stability of its combustion system directly affects the output and quality of lime. However, in the actual production process, due to the influence of many factors, the shaft kiln may have partial fire, which will not only reduce the output of lime, but also affect the quality of lime. Therefore, when the lime shaft kiln has partial fire, it is particularly important to adjust the combustion system in time.
The phenomenon of partial fire usually shows that the flame distribution in the kiln is uneven, the flame on one side is too strong, and the flame on the other side is relatively weak. This situation will lead to uneven heating of limestone, and part of limestone is not fully calcined, thus affecting product quality. At the same time, the partial fire will also aggravate the thermal stress of the kiln body and shorten the service life of the kiln body.
Aiming at the problem of partial fire in lime shaft kiln, the adjustment strategy of combustion system mainly includes the following aspects:
1、 Adjust fuel supply
The uneven fuel supply is one of the main reasons leading to partial fire. Therefore, according to the actual situation of the flame in the kiln, the fuel supply on the side with weak flame should be appropriately increased, while the fuel supply on the side with strong flame should be reduced. By accurately controlling the fuel supply, the flame distribution in the kiln is more uniform.
2、 Optimize air supply
Air is a necessary condition for fuel combustion. While adjusting fuel supply, attention should also be paid to air supply. It should be ensured that all parts of the kiln can obtain sufficient air to promote the full combustion of fuel. For the side with weak flame, the air supply volume can be appropriately increased to improve the combustion efficiency; For the side with strong flame, the air supply volume should be appropriately reduced to avoid excessive combustion.
3、 Adjust kiln structure
The structure of kiln body also has some influence on the flame distribution. While adjusting the combustion system, it is also necessary to consider the appropriate optimization of the kiln structure. For example, the flame distribution can be improved by adjusting the inclination angle of the kiln body or changing the distribution of refractory materials in the kiln. These adjustments should be made according to the specific situation to ensure the uniform distribution of flame in the kiln.
4、 Strengthen monitoring and maintenance
In order to avoid the occurrence of partial fire, it is also necessary to strengthen the monitoring and maintenance of the flame in the kiln. By installing temperature, pressure and other sensors, the flame status in the kiln can be monitored in real time. Once the partial fire phenomenon is found, measures should be taken immediately for adjustment. At the same time, the kiln body shall be inspected and maintained regularly, and potential problems shall be found and handled in time to ensure the stable operation of the kiln body.
The combustion system adjustment of lime shaft kiln is a complex and detailed process. By adjusting the fuel supply, optimizing the air supply, adjusting the kiln structure and strengthening the monitoring and maintenance, the problem of partial fire can be effectively solved and the output and quality of lime can be improved. In practice, the strategy should be flexibly adjusted according to the specific situation to ensure the stable operation and efficient production of the lime shaft kiln.
