Improvement of the design of the steel-making electric-arc furnace ДСП-40-Н1

Stress calculation of the main structural elements of the steel-making electric-arc furnace ДСП-40-Н1 is considered. Static deformation of spatial design of the furnace is modeled using the finite element method in the ANSYS program pack. To reduce the computation effort a model of massive construction is recruited from the plates (shell finite elements are used). Stress calculation of the furnace structural members most subjected to load is conducted. It is revealed that in the original version of the construction there are stresses that are several times higher than the yield stress of the material, prescribed in the GOST for sheet metal that makes up the construction. On the basis of the distribution of stresses in the finite element model several options to strengthen the construction were worked out and the most appropriate variant, that provided the required safety and ease of constructive implementation were selected. The construction of the proposed reinforcements successfully completed in-plant test limit loads. This will ensure further safe operation of the furnace.

Stress calculation, finite-element model, steel-making electric-arc furnace, reinforcement of construction, safety factor, allowable stresses