РЕГИОНЫ АО «СУЭК» На «Восточно-Бейском разрезе» установлен новый мировой рекорд 4 АО «СУЭК» Информационные сообщения 6 ПОДЗЕМНЫЕ РАБОТЫ Козлов В.В., Оганесян А.С., Михеева А.Б. Классификация технологических схем очистных работ с разворотом механизированных комплексов 8 Тарасов В.М., Буялич Г.Д., Тарасов Д.В., Тарасова Н.И. Боковые породы во взаимодействии с секцией механизированной крепи, как давление сползающих призм по гипотезе П. М. Цимбаревича. Развитие гипотезы до концепции 10 Мельник В.В., Козлов В.В. Анализ исследований и состояния гидравлической технологии и процессов добычи угля 16 ГОРНЫЕ МАШИНЫ Бучин И.Р. Системы весового учета для горнодобывающей отрасли 18 Лукьяненко В.А. Исполнительный орган проходческой машины избирательного действия, продольно вращательного относительно забоя типа 20 ОРГАНИЗАЦИЯ ПРОИЗВОДСТВА Кулецкий В.Н., Жунда С.В., Галкин А.В. Формирование эффективной системы производственного контроля на разрезе «Тугнуйский» для устранения условий труда, при которых возможны групповые, смертельные и тяжелые травмы 23 Фомин А.В., Садовая О.Н., Полещук М.Н., Шивырялкина О.С. Об организации производства и труда на предприятиях Японии 30 РЫНОК УГЛЯ Плакиткина Л.С., Плакиткин Ю.А., Дьяченко К.И. Анализ и прогноз потребления каменного угля в основных регионах и странах мира и России в период 2000-2035 гг. 34
Elemental chemical analysis shows that pyrophyllite of the Nikol'sk deposit does not contain iron oxide. Due to the high content in pyrophyllite ore of pyrophyllite and diaspore (corresponding 80 and 4%) the amount of aluminum oxide within exceeds 30%, that will facilitate preparation of high quality acid-resistant materials.
Palabras Clave: Activación térmica de arcillas, Material cementante suplementario, Geología de arcillas, Atmósfera y temperatura de calcinación, Desempeño de arcillas en morteros, Machine learning, Analítica de datos, Random forest, Big data.
It is demonstrated that introducing up to 15% pyrite cinder into ceramic mixtures significantly improves the cold resistance of roof tiles; the decrease in water absorption in this case is not proportional to the increase in cold resistance. A uniform distribution of pores of size 10 -6 -10 -7 m facilitates a substantial increase in cold resistance.The mining-and-metallurgy industrial complex has a special role in Russia and in Kazakhstan, since its products are essential for their economies and make up a perceptible part of exports. At the same time, the reserves of high-grade ores for nonferrous metallurgy are decreasing in both countries and the geological conditions for mining deposits are deteriorating. The industry now frequently uses mineral resources with a low concentration of useful components. In the past 20 -25 years the content of the main metals in the ores has decreased 1.5 -1.6 times and the share of ores that are difficult to process has increased from 15 to 45%. At the same time, non-ferrous metallurgy producers have accumulated immense quantities of waste.The production of ceramics is one of the most material-consuming sectors of industry; therefore, the rational utilization of fuel, minerals, and other resources is crucial for its progress. In this context, the recycling of technogenic materials in ceramics is becoming quite topical.The contemporary production of ceramic roof tiles calls for a new approach to estimating the tile quality. The main criteria should be high density and low open porosity, which provide for increased strength and cold resistance [1]. It has been demonstrated earlier [2] that iron oxide facilitates the consolidation of such ceramic products and improves their frost resistance.The possibility of using the argillaceous component of the gravitation tails of zircon-ilmenite ore (GZIO) and pyrite cinder in the production of roof tiles without using tradition natural feedstock was demonstrated in [1, 3 -5] and in Kazakhstan patent No. 11827. The obtained S-shaped tiles in their physicomechanical parameters satisfy the requirements of OST 21-32-84. However, the effect of pyrite cinder on the properties of roof tiles has not been investigated.Considering that well-sintering high-melting clay deposits are absent or limited in most regions of Kazakhstan, East Siberia, and the Volga Region, the study of the applicability of GZIO tails as argillaceous materials for ceramics can expand the available materials for this sector.The argillaceous component of GZIO formed after disintegration and screening of the ore has the form of pulp of moisture 37 -45%, its color varying from light yellow to pink, and its density 2.36 -2.42 g/cm 3 . The GZIO tail is actually a high-melting clay, but has a complex mineral composition including (unlike the traditional high-melting clay) more than 10 minerals and an increased content of ferrous oxide (over 5% Fe 2 O 3 ; here and elsewhere wt.%) [6].Compared to traditional clays, GZIO tails have a more uniform composition. Furthermore, this material i...
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