One possible resource- and energy-saving option for hot repairs of converter linings is an integrated technology that simultaneously blows the final slag with nitrogen gas jets and torch gunning using readily available gunning mixes based on unfired refractory materials. A diagram of this technology is provided. In this case, converter lining repairs are performed using a special vertical gas-cooled gunning lance, which enables the combined operation of slag blowing and torch gunning. Simultaneously, during the process of applying a slag crust by blowing the final slag onto the lining surface with nitrogen jets, gunite flares are applied. The gunite mixtures used in these flares include readily available materials such as recycled lime kiln dust, coal dust from coke dry quenching units, and raw dolomite or magnesite powder. The primary objective of the final slag blowing process (τ = 3 h 5 min) is to additionally deposit slag-forming components (CaO, MgO) onto the converter walls. These components will participate in the slag formation process during subsequent melting and blowing of the converter bath.

The technology of applying protective slag and refractory coatings is currently the primary method for ensuring high durability of periclase-carbon linings in basic oxygen converters worldwide. The development and optimization of this technology requires the development of new approaches, the accumulation of information, and the scientific substantiation of specific technical solutions.

A favorable combination of casting, mechanical, and a number of operational properties allows silumins to be used in mechanical, aircraft, and instrument making. The properties of Al–Si alloys depend on their microstructure, which is determined by their chemical composition, melting conditions (including batch and melt processing), crystallization, and heat treatment.

The problem of supplying iron ore to the EVRAZ ZSMK sinter plant has existed since the sintering machines were commissioned in 1967–1971. According to the project, the Korshunovsky GOK was the main supplier of iron ore for the EVRAZ ZSMK sinter plant. However, during the decline in production by the Russian mining and metallurgical complex in the 1990s and the change of ownership at the Korshunovsky GOK, EVRAZ ZSMK was forced to purchase iron ore from a number of Russian mining and processing plants (Kuznetsk, Mikhailovsky, Stoilensky, Olenegorsky, KMArud, Lebedinsky, Vysokogorsky, and Bakalsky), as well as from Kazakhstan (Lisakovsky and Sokolovsko-Sarbaisky).

Statistics on the use of rock bolts show that the main problem in the safe maintenance of mine workings under the influence of mining and geological disturbances is the low level of research aimed at establishing patterns of change in geomechanical parameters in a heterogeneous coal-rock mass before and after the fastening of mine workings with rock bolts.

The Tuekta Formation was identified during geological surveys in the early 1960s. It dates to the upper Givetian stage of the Middle Devonian and contains corals and brachiopods, including Euryspirifer cheehiel (Kon.), Spinocyrtia martianovi (Stuck.), and others. The formation's deposits are primarily dark gray and black siltstones and mudstones with occasional layers of sandstone and organogenic limestone. In these characteristics, it is similar to the Tashanta Formation of the Yustyd Trough. However, within the formation, felsic volcanic rocks (rhyolites) are widespread. In fact, their appearance here served as the basis for the identification of a stratigraphic unit.

The goals of reforming Russian railway transport were to increase productivity and the quality of services provided, ensure a stable influx of investment, and introduce innovation. These goals are common in all countries. The instruments chosen by the government to facilitate the implementation of these general goals were the following: developing competition, improving corporate governance of railway enterprises, and state financing (subsidizing) of railways. Compared with foreign experience, the prerequisites and conditions for reform differed significantly, and therefore the methods of reform and the target state of the railway market also differed.

With energy and electricity prices rising annually, research into new, cheaper fuels is becoming increasingly important. Unconventional, renewable energy sources such as wind and solar power hold significant promise in this regard. However, due to their climate and geographic location, these sources are not widely applicable in most Russian regions. Traditionally, the primary fuels for thermal power units include coal, fuel oil, and natural gas. However, the economic viability of these fuels is largely determined by the proximity of mineral deposits and the cost of fuel transportation. Under these circumstances, interest in locally produced fuels, particularly low-cost fuels derived from industrial waste, is growing exponentially.

Cage and skip mine hoists are among the key technological components that ensure the operation of underground mining enterprises. The safety and productivity of the entire enterprise depend on their reliable and trouble-free operation.

Among protective metallic and non-metallic coatings, zinc coatings are among the most effective and widespread. The widespread use of anti-corrosion zinc coatings to protect steel and cast iron products is due to the following reasons: high natural resistance of zinc itself due to the formation of protective films of corrosion products on it in a corrosive environment; high anodic protection of steel by galvanizing in atmospheric conditions and in fresh water at temperatures up to 343 K; at higher temperatures, the zinc coating protects steel in aggressive environments only mechanically, transforming from an anodic coating into a cathodic one; galvanizing is implemented in many technological variants, providing different formation mechanisms, physicochemical and operational characteristics of the coatings; galvanizing processes are technologically relatively simple, mechanized and automated, and have high technical and economic indicators.

The growing quantity and complexity of municipal solid waste (MSW) has led humanity to recognize the need to manage waste streams. The term "Waste Management," widely used internationally, refers to the organization of waste management with the goal of reducing its impact on human health and the environment. This definition clearly articulates the purpose of waste management. While the term "waste management" is not defined in Russian scientific literature or regulatory documents, the term "waste management" is used in practice, as defined in Federal Law No. 89-FZ "On Production and Consumption Waste": the collection, accumulation, use, rendering harmless, transportation, and disposal of waste. This definition does not imply any need for any management of this activity.

The steadily increasing anthropogenic impact on the environment and the high costs of environmental protection measures highlight the need to create a mechanism to address the current negative situation. In particular, the situation regarding land disturbance necessitates addressing unresolved issues related to land reclamation financing. To address these issues, in accordance with the theory and practice of managing organizational systems, it is necessary to develop an organizational and economic mechanism that ensures the accumulation of funds for large-scale reclamation projects. Several methods of financial guarantee for the implementation of large projects are successfully used abroad: letters of credit, guaranteed bonds, insurance, independent guarantees, and target funds. According to the Civil Code of the Russian Federation, there are six methods of securing the fulfillment of obligations: security deposit, pledge, surety, independent guarantee, penalty, and earnest money.

Currently, the market economy poses a number of priority tasks for the development of enterprises, which must be addressed by managers and specialists based on a radical improvement in the level of professional training of management personnel. In this regard, specialists working in enterprises and organizations in the field of material production are required to have a broad technical, organizational, and economic perspective, as well as the ability to navigate the ever-changing market environment and make appropriate organizational decisions. To accomplish these tasks, it is necessary to choose the optimal management decisions, which involve a retrospective assessment of the economic performance of industrial enterprises (including rolling mills), as well as ways to improve the organization and planning of production. These requirements form the structure of the reviewed textbook for students of higher education institutions studying in the field of metallurgy.