Chassis loading investigation of two-shaft shredder for construction waste management

Irena Grigorova; Malina Vatskicheva

doi:10.5937/ror1701015V

Authors

Irena Grigorova University of Mining and Geology ‘St. Ivan Rilski’, Sofia, Bulgaria Author https://orcid.org/0000-0002-8243-6232
Malina Vatskicheva University of Mining and Geology ‘St. Ivan Rilski’, Sofia, Bulgaria Author

DOI:

https://doi.org/10.5937/ror1701015V

Keywords:

stresses, deformations, chassis, two-shaft shredder

Abstract

Recycling industry development need cracked materials with different composition and characteristics. New constructions shredders creation, their engineering design, development through adequate mechanical-mathematical models and practical realization determines the actuality of this paper. The materials crushing for recycling solves important environmental tasks related to environmental protection. The two-shaft hydraulic shredder realized the first and the second stage from the crushing (disintegration) process. Disintegration as part of the recycling process can be successfully applied to the domestic and industrial waste processing, singleand multi-component materials crushing, and to secondary raw materials grinding. The paper is dedicated to the emerging loading of the two-shaft shredder chassis and the resulting calculations and verifications. In the present work has been performed a modeling study of the chassis for such type of shredder for concrete, rubber, plastic and wood crushing. The studies of the mechanical load and behaviour of the chassis have been conducted. The equations characterizing the mechanical processes in the working conditions by the finite element method are solved. For this purpose has been generated a chassis three-dimensional geometrical model, which has been discretized to a planned network of finite elements in the ANSYS MECHANICAL APDL programming environment.

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