球磨机是我公司 1 0 0 kt/a一级品过磷酸钙粉磨系统的关键设备。在使用中 ,出现磨机筒体靠近进料端部分外凸变形 ,为此对筒体变形部分进行挖补修复。1　磨机筒体变形情况该磨机为 2 .2 m× 4.4m。在 1 998年、1 999年出现进磨端筒壁 δ=1 6mm钢板外凸变形 (见图1 )。距磨机端 Ball mill is my company 1 0 0 kt / a first-class product superphosphate grinding system, the key equipment. In use, the mill barrel appears near the feed end of the part of the convex deformation, for the deformation of the cylinder digging repair. 1 mill barrel deformation The mill is 2. 2 m × 4.4m. In 1999, there was an outward deformation of δ = 16mm steel plate into the end wall of the mill in 1999 (see Figure 1). From the mill end