At the invitation of Zhantong White Ash Factory in Lighthouse City, Tao Dechun, the Director and Project Manager of the First Engineering Department of Huaguan Company, has negotiated with him multiple times. Now, the refractory materials of the existing lime vertical kiln in the factory have been dismantled and built, and the repair of the kiln top distributor, maintenance of the wind cap and kiln bottom have been reached, and the quality standards have been clarified. The lime vertical kiln was designed, manufactured, and installed by our company in 2015. It was successfully ignited and operated on June 15 of the same year, and underwent its first major overhaul this year.