What are the hazards of the upward movement of the calcination zone in a vertical lime kiln
The vertical kiln of lime kiln is a key equipment in the lime production process, and the position of its calcination zone has a significant impact on the production efficiency and product quality of lime. However, in the actual production process, the calcination belt may move upward for various reasons, and the harm caused by this phenomenon cannot be ignored.
The upward movement of the calcination zone will cause the fuel to burn prematurely in the upper part of the kiln, and when the furnace charge drops to the calcination zone, the fuel has lost its firepower, resulting in a burning phenomenon. The quality of raw lime is unstable, the activity is low, and it is difficult to meet the downstream production needs, which affects the production efficiency and economic benefits of enterprises.
The upward movement of the calcination zone will also affect the temperature distribution inside the kiln. Under normal circumstances, the temperature inside the kiln should be kept stable to ensure uniform calcination of lime. However, the upward movement of the calcination zone will break this balance, resulting in temperature dispersion inside the kiln, with some areas having excessively high temperatures and others having excessively low temperatures. This uneven temperature distribution can affect the calcination effect of lime, and even lead to over burning or under burning of lime, further reducing product quality.
Moving the calcination belt upwards will also increase the risk of wear and damage to the kiln lining. Due to the change in the position of the calcination zone, the thermal and mechanical stresses on the kiln lining will also change, thereby accelerating the aging and damage of the kiln lining. This will not only increase the maintenance costs of the enterprise, but also affect the service life of the kiln.
The harm of the upward movement of the calcination zone in the vertical kiln of the lime kiln cannot be ignored. Enterprises should strengthen monitoring and maintenance of kilns, promptly identify and address issues with the upward movement of calcination belts, to ensure the stability and quality of lime production.
