This article is a continuation of the series devoted to the creation and application of nanomaterials and nanotechnologies in modern industry in general and in metallurgy, materials science and foundry production in particular. The article deals with the choice of equipment and the development of effective methods for obtaining nanomaterials. Examples of the application of the developed equipment, technologies and materials obtained in the Republic of Belarus and abroad are given.

Наиболее перспективным и универсальным способом рециклинга стружки черных металлов является технология прямой переплавки стружки в ротационных наклоняющихся печах (РНП) непосредственно на предприятиях-источни-ках образования этих отходов. Однако сложившаяся практика переработки чугунной и стальной стружки базируется The most advanced and universal way of chips recycling of ferrous metals is the technology of direct chips remelting in rotational tilting furnaces (RBF) directly at the enterprises-sources of waste generation. However common practice of iron and steel chips recycling is based on its briquetting and subsequent remelting in traditional furnaces. For cost reduction when chip briquetting and organization of hot briquetting sections in places of its formation highly efficient equipment -rotational dryer and RBF is proposed. The possibility and effectiveness of developed furnaces for low-and high-temperature chip heating in briquetting lines is proved. Thermal efficiency of such furnaces when dispersed materials heating is much higher than drum or feed-through furnaces. Hot briquetting of shavings reduces the pressing force, which reduces the specific energy consumption. The use of rotary kilns can reduce technological operations and equipment of production sites for the manufacture of briquettes. Ключевые слова. Стружка черных металлов, брикетирование, ротационная печь, рециклинг. Keywords. Ferrous metal shavings, briquetting, rotary furnace, recycling.Возрастающее накопление металлоотходов, в том числе металлической стружки, удорожание энер-горесурсов, ужесточение природоохранных требований приводят к необходимости поиска экономичных и эффективных способов ее переработки (рециклинга) [1][2][3].По ориентировочным оценкам, вновь образующиеся дисперсные металлоотходы только в Беларуси составляют 250-300 тыс. т в год. В отвалах нашей страны на сегодняшний день накоплено по некоторым оценкам около 8 млн. т различных, в большей мере сильно окисленных металлоотходов (рис. 1).Доля стружки черных металлов, которая используется и перерабатывается в Беларуси, по оценкам специалистов, не превышает 60%.Специфика этой проблемы обусловлена наличием большого количества предприятий-источников подобных отходов, что увеличивает затраты и трудности со сбором, транспортировкой, хранением, уни-фикацией по видам и химическому составу и соответственно осложняет переработку и повторное ис-пользование стружки. Продавать стружку за рубеж, а затем покупать первичные (доменные) шихтовые материалы, что и происходит в настоящее время экономически невыгодно.

This article describes motion and heat and mass transfer in the layer of dispersed material in a rotary furnace. Presents the results of a comprehensive study of these processes, including pilot studies, computer modeling and simulation, which allow to optimize the design and process parameters of rotary furnaces.

Advantages and disadvantages of liquid glass binder are considered. Mechanism of the influence of an ultradispersed modifier on the structure and properties of a liquid-glass binder are submitted. The prospects of using environmentally friendly liquid-glass binder modified with ultrafine materials are justified. The questions of ecological safety of foundry production connected with application of organic binders are described. The advantages and disadvantages of the liquid-glass binder are considered. The mechanism of influence of ultradispersed modifier on the structure and properties of the liquid-glass binder is presented. The prospects of using environmentally friendly liquidglass binder modified with ultrafine materials are justified.

Foundry is a multidisciplinary industry of engineering, providing cast blanks from various metals and alloys. The seriality of production has a great impact on the efficiency and quality of the castings being received. Single-unit and small-scale foundry production is an important part of modern engineering. Structural analysis of casting technology is presented in the article, individual technological changes are considered both in terms of impact on the efficiency of casting, and in terms of high quality assurance at minimal cost. Taking into account the need for a single-unit and small-scale casting in the fl xibility of the processes, schemes of organization of technological preparation of production and technological equipment are proposed. Examples of the equipment used are given.