Analysis of the load capacity of the bolt joints of collecting electrodes with the rapper rod

¹ University of Bielsko-Biala, Willowa 2, 43-309 Bielsko-Biała, Poland
² Dedusting Installation Division, Rafako S.A., Górnośląska 3A, 42-200 Pszczyna, Poland

^* Corresponding author: a.nowak@ath.bielsko.pl

Abstract

This article presents an analysis of the load capacity of the bolt joints of collecting electrodes with the rapper rod, made in HUCK technology. A discrete model of the system of electrodes was worked out for the analysis of stresses in bolt joints, the validation of which was made on the basis of measurement data obtained on the test bench. Two variants of joining the plates of electrodes with the rapper rod were taken into account in calculations - the first one with the correct geometry in the rapper rod, the other one with an eccentric displacement of holes in the flat bars of the rapper rod. In both variants the modelled system was loaded with the impulse force corresponding to the impact of the hammer against the anvil, with the run obtained from measurements on the test bench. These models and the related calculations were performed in the ABAQUS environment. As a result of the analyses performed, recommendations were worked out intended to eliminate cases of the destruction of bolt joints closest to the anvil of the rapper rod.