Polina Ivanova

• Saint Petersburg Mining University

The state economic development is largely determined by the effectiveness of its individual structural elements. Among them, a special place is occupied by trends in the mineral sector, which dictates the requirements and mechanisms for the development of natural resources, creating the basis for a national strategy. However in this area there are...

This work describes systems of mining machines for peat extraction, particularly, the systems that exploit environment-friendly technologies. An algorithm for schematic structure modeling of modular mining machinery systems was introduced and analyzed. Based on the analysis, an algorithm for assessing energy consumption of an entire machinery syste...

The results of physical modeling of primary dehydration of raw peat materials of the disturbed structure in a thin layer and at excavator bucket digging directly from the watered deposit at peat quarry development are presented. The areas of rational application of mechanical moisture dehydration of raw peat materials are shown, which allow assessi...

The state economic development is largely determined by the effectiveness of its individual structural elements. Among them, a special place is occupied by trends in the mineral sector, which dictates the requirements and mechanisms for the development of natural resources, creating the basis for a national strategy. However in this area there are...

In this paper, we discuss an issue of underwater mining and why modern mining equipment does not fit this purpose. Working in such complicated conditions often has an unsatisfying performance level. We analyzed the processes of mining materials that have not been preliminary dewatered. We also describe variations of positioning system and the impor...

The following article presents a single classification of peat extraction strategies, methods, mining machinery systems, and types of raw peat. It also defines types of connection established between blocks, modules and mining machines within an extraction system. We suggest nine main mining systems that include specialized blocks and modules. Give...

Перспективы развития горнодобывающей отрасли тесно связаны с состоянием и развитием современных горных машин и оборудования, соответствующих техническим и качественным требованиям, предъявляемым горными предприятиями. Предприятия ориентированы на количественную оценку – объемы добычи полезных ископаемых, зависящие от эффективности функционирования...

The article discusses various factors that have a significant impact on the performance of EKG-32R type powerful mining excavators. It was revealed that the most adverse effects are weather conditions that are different from the nominal ones for which mining machines are designed. The climatic factor includes the impact of solar radiation, low and...

This article discusses the basic principles of developing a methodology for comparing the performance of mining excavators for given operating conditions. The indicators determining the effectiveness of mining excavators are given. The main aspects of the developed methodology are considered. A comparison algorithm is proposed.

Nowadays, the development of remote regions of Russia related to energy security is increasingly relevant. Existing production technologies have a significant anthropogenic impact on the environment. To reduce the negative consequences of this impact, it is necessary to develop complexes of mining equipment capable of complex processing of excavate...

In this paper the effect of design parameters of excavators operating equipment on the dynamic load of drives is demonstrated using the example of the hoisting mechanism as the most energy-loaded one (the total power of the drive motors of the hoisting mechanism is comparable to the power of all other excavator drives combined).