ANALYSIS ON THE FATIGUE PROPERTIES OF INDUSTRIAL SLAG BIN

The slag bin is an important storage device in the slag discharge system of thermal power plants. In order to study its fatigue properties, a slag bin in an actual project was taken as an example, and a large-scale finite element software was used to establish a finite element model considering contact. The load conditions were analyzed in detail to determine the loading mode, and the structural stress and displacement of the slag bin were obtained. On this basis, the fatigue life of the slag bin was calculated. The result showed that the cylinder of the encryption rib had the maximum stress which value was 349.5 MPa. The fatigue damage was prone to occur near the ring beam and the encryption rib after 2.495×10³ cycles.