Newly built or overhauled large-section tunnel kilns must be baked according to the correct baking procedure before they are put into production, as the kiln body contains a large amount of moisture, so as to discharge the moisture in the kiln body, so as to ensure the service life of the kiln and meet the requirements of normal production.
The quality of baking of large-section tunnel kilns not only directly affects the service life and normal production of the kiln, but also affects the quality and output of the products. Even if a large-section tunnel kiln is reasonably designed and of excellent construction quality, if it does not pay enough attention to the baking process and does not bake according to a reasonable kiln baking system, it is very likely to cause cracking of the kiln body, structural deformation, and partial collapse in severe cases.
Once the kiln body cracks (multiple cracks or severe cracks), the sealing of the kiln body is damaged, air leakage will occur during use, and the atmosphere, pressure, temperature, etc. of the kiln are difficult to control, which also greatly reduces the service life of the kiln. In addition, errors in kiln baking will also affect the curved seal and sand seal of the kiln, which can affect the service life of the kiln car. Therefore, baking in a large-section tunnel kiln is a rigorous and meticulous job that requires serious preparation and operation.