1. Before replacing the rotary kiln cylinder, the position of the kiln should be scientific. This position can curb the development of the deformation of the cylinder or have a certain correction effect on the deformation. The support of the reserved cylinder should be reasonable, otherwise the fixed cylinder will be displaced horizontally or vertically. It is not easy to be centered when docking; the cantilever section is too long to produce downward deflection, and the support forces on both sides of the support point will be uneven. The degree of arching and so on. When stopping the kiln, the bending point of the cylinder is usually placed directly above, and the position of the support point should be as close as possible to the cutting line about 100 m. When supporting the cylinder, support should be carried out by using a "saddle" type horn to prevent further production of the bearing body. Deformation.

 

2. When using the dicing disc to cut the trim line and the cutting line of the cylinder, the base of the stylus disc should be inclined at an angle corresponding to the kiln body, so that the cut line is resistant to the cross section, otherwise the section is an elliptical surface. Thereby increasing the docking difficulty of the cylinder and affecting the docking quality of the cylinder. After the stylus disc is fixed, the body docking object is moved by the auxiliary motor, and the trowel and the cutting line are drawn on the outside of the cylinder by the stylus.

 

3. Before the docking, the old and new cylinders should be rounded, and the “m” support or inner support ring should be added to ensure the quality of the docking. The cylinder of the rotary kiln reduces the internal stress of the weld.

 

4. When the cylinders are butt jointed, the spacing of the ring gaps should be greater than 300 mm. The two longitudinal joints should be staggered more than 500 mm. It is forbidden to weld the “Ten” welds.