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Energy Efficiency of a Cone Crusher with Stops

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Abstract

One of the main processes in the metallurgical, construction and mining industries is the process of grinding various materials as a primary raw materials preparation. The crushing of materials to obtain the required fraction annually consumes up to 4% of the world’s electricity production, and for a single mine, the share of energy consumption for crushing can reach 50% of the annual volume. Part of the electricity is spent on creating a power reserve of the crushing machine (hereinafter—the crusher) due to the fact that, presently, there are no methodologies for computing its electric drive power and determining the energy costs for the rocks destruction. Raw materials extracted from different deposits have different physical and mechanical properties, which has a significant impact on grinding. The difference in the power of electric drives of crushers is due to the difference in their standard sizes. The geography of their application is considered by creating a power reserve. The above factors have a negative impact on the operating costs of metallurgical enterprises. This paper considers some crusher designs in which the destruction of the crushed piece occurs as a result of a complex stress state and proposes a new design of a cone crusher with stops, which makes it possible to reduce energy costs for crushing materials. Due to the presence of stops and simple kinematics of the working body, a reduction in the forces required to destroy brittle pieces, regardless of their properties, is achieved. At the same time, it is possible to create a tangential stress state in crushed pieces destroyed in the cone crusher with stops, in which theoretically a reduction in the force required for crushing brittle materials by a factor of two can be achieved in comparison with compression crushers. The conditions of a tangential stress state in crushed pieces during crushing in the cone crusher with stops are described. Recommendations for creating these conditions are presented.

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Authors and Affiliations

  1. Kuzbass Institute of the Federal Penitentiary Service of Russia, 654066, Novokuznetsk, Kemerovo oblast, Russia

    D. F. Sakharov & A. V. Vitushkin

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  1. D. F. Sakharov
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  2. A. V. Vitushkin
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Correspondence to D. F. Sakharov or A. V. Vitushkin.

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Translated by A. Kolemesin

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Sakharov, D.F., Vitushkin, A.V. Energy Efficiency of a Cone Crusher with Stops. Steel Transl. 52, 933–938 (2022). https://doi.org/10.3103/S0967091222100102

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