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In recent Giprokoks designs for the reconstruction of coke-sorting systems, high-productivity vibrational-inertial screens
have been employed. This permits single-stage screening and reduction in capital and especially operating expenditures, without
loss of coke quality. In two-stage screening, >80 mm coke (for foundry needs) is additionally separated, with significant
improvement in quality of the metallurgical coke (25–80 mm). New designs for the reconstruction of coke-sorting systems employ
mechanical treatment of the coke outside the furnace, which offers new scope for stabilization of coke quality and permits
considerable improvement in mechanical strength and granulometric composition of the coke by mechanical crushing. 相似文献
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P. P. Lepikhin V. A. Romashchenko Yu. N. Babich O. S. Beiner V. F. Demenko 《Strength of Materials》2005,37(2):146-158
The equations of two-dimensional dynamic theory of elasticity are used to study the domain of applicability of engineering one-dimensional analytic procedures developed earlier for the evaluation of the dynamic strength of cylindrical and conic matrices of finite length both with free and fastened ends subjected to stamping by high explosives. It is shown that, in view of the buildup effect leading, in some cases, to the violation of strength of the matrix, these procedures should be supplemented with correcting calculations performed according to the two-dimensional model for large periods of time. We propose new procedures of design-basis and verifying analyses for cylindrical and conic matrices of finite length subjected to stamping by high explosives.__________Translated from Problemy Prochnosti, No. 2, pp. 49 – 65, March – April, 2005 相似文献
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Lepikhin P. P. Romashchenko V. A. Beiner O. S. Demenko V. F. Naryzhnyi A. G. Ivashchenko K. B. 《Strength of Materials》2002,34(3):295-299
A comparative analysis of the characteristics-difference method and the Wilkins algorithm with reference to problems of nonstationary deformation of one-dimensional cylindrical thick-walled shells has been carried out. On the basis of comparing one- and two-dimensional solutions of boundary problems of the dynamic theory of elasticity obtained by the Wilkins method, conclusions have been drawn about the validity limit of one-dimensional models for the estimation of the strength of female dies for impulse-pressure forming of closed cylindrical and conical shells. 相似文献