The main purpose of the cylinder body calculation are: (1) a deformation condition checking the strength to determine the selected rotary kiln cylinder thickness is appropriate; (2) according to the calculated results adjust the cross span, to meet the reverse force such as principle, even if the counteracting force tend to be close to, so that the design of the supporting device get unification; Second is to meet and bending moment principle, make each pedestal section bending moment tends to close, avoid to meet the requirements of the individual section thicken therotary kiln cylinder. When rotary kiln procuction supporting file, the structure of the reason, the above principle is not easy to fully realized, need not importune; (3) for supporting components and foundation to provide design load, two support cooling machine, drying machine and rotary kiln, the tube after a beam for cylinder, internal force calculation is simple. More than three block belongs to the static set beam