The article provides the results acquired during the development of a magnetic circuit equipped with magnetic blocks assembled from NdFeB magnets with gradually increasing height. It presents the knowledge from the application of the new method of assembling these blocks and the achieved values of maximum magnetic induction in dependence on the distance from the surface of the blocks both for their different heights and for the different designs of the magnetic circuit in comparison with the values obtained for similar magnetic circuits with ferrite magnets., Václav Žežulka., and Obsahuje bibliografii
The article presents a separator whose magnetic circuit is comprised of large blocks from permanent NdFeB magnets and the knowledge gained from its assembly. In the separation zone of this separator, significantly higher values of magnetic induction were reached in comparison with a similar circuit with ferrite magnets. The results of the long-term comparative technological tests are provided of this separator when used in an industrial plant for the separation of undesirable ferromagnetic admixtures and objects (tramp iron) from raw materials for tile production. Throughout these tests, the fundamental influence of the value of magnetic induction in the separation zone on the amount of the captured magnetic fraction was confirmed and high efficiency of the new separator proven., Václav Žežulka and Pavel Straka., and Obsahuje bibliografii