Selected Aspects of Technical Condition State Assessment of Spreaders Operating in Lignite Mines

On the basis of spreader A2RsB 15400 the method for technical condition state assessment of machines, after many year of operation, in lignite mines is presented. In purpose to identify the structure hot spots and cracks, both numerical and experimental methods were applied. Additionally, the dynamic behavior of the structure was assessed with use of the experimental methods. The paper presents the meaningful results chosen from the assessment procedure.