Theory and practice of crushing, separation, mixing and compaction processes

Abstract

The introduction of advanced effective technologies for crushing, separating, mixing, and compacting in the ceramic and other industries is of great practical importance. The Vth international conference devoted to these problems was held, like the previous ones, in the Belgorod-Dnestrovsky District of the Odessa Region in 1997. The results obtained in the discussed field by various scientific schools of the CIS countries were presented. The conference was attended by representatives of scientific schools and mining and processing enterprises in Odessa, Dnepropetrovsk, Kharkov, Kiev, Donetsk, Krivoy Rog, Minsk, Kishinev, St. Petersburg, Ekaterinburg. The organizers of the conference were the Odessa State Marine Academy (department of higher mathematics), the Kharkov State Polytechnical Institute (department of technology of ceramics, refractories, glass and enamels), and the National Mining Academy of Ukraine (department of mining machines) engaged in the scientific programs of the Ministry of Defense of Ukraine, including problems of low-temperature synthesis of refractory compounds.A review by I. I. Blekhman (St. Petersburg) was devoted to methods of testing mechanical systems subjected to vibration, the changes in their mechanical and rheological properties, and the use of effects established in practice in order to . improve compaction of ceramic mixtures on various binders. G. A. Saipeev (Ekaterinburg) described his new method for disintegrating solid particles, i.e., resonance disintegration with the use of hydroquantum resonators, which provides for a very efficient crushing process. The results on crushing various materials in apparatuses based on the described principles show the efficiency of the method and its prospects for the science ofceramic materials.The report ofL. Zh. Gorobets, A. I. Lyuty, and S. B. Dubrova (Dnepropetrovsk, Donetsk) was devoted to the relations between the parameters of dispersed solid bodies and the thermodynamic characteristics of the critical state of a substance. The scientists continue to develop the method considered at the previous two conferences and study the threshold state of the substance that corresponds to the beginning of dispersion from the standpoint of thermodynamics with involvement of the fundamental individual characteristics of the substance parameters, i.e., the pressure, temperature, spe-1 Odessa State Marine Academy, Odessa, Ukraine;Kharkiv Stale Polytechnical University, Kharkov, Ukraine. 60 cific volume, melting and evaporation temperatures, and energies of phase transformations. They demonstrated the possibility of predicting the energy capacity of dispersion of various kinds of ceramic and chemical raw materials from the specified parameters. The use of mechanochemical processes for synthesizing specified phases substantially widens the possibilities of creating new materials; this explains the growing interest in these methods in the science ofceramic materials. The report of G. D. Semchenko, E. E. Starolat, I. N. Opryshko, and L. A. Andropova (K...

A Novel Energy Saving Operation Strategy of Multiparameter Coupling Coordinated Speed Regulation for Crushing

“…(2) Theory combined with practice [28] The research and application of energy saving operation of crushing station is of great significance to improve the efficient mining and stripping operation of large-scale open pit system. The multiparameter coupling coordinated speed regulation crushing strategy in crushing station is proposed combined with practice.…”