Technological requirements for the processing of excavated organic raw material

The challenges of mineral resource (MR) extraction in complex mining and geological conditions of organogenic rock deposits are identified, using peat deposits as an example. Consequently, the necessity of in-pit processing of excavated organogenic raw materials, particularly peat, is established. Integrated rational development of MR deposits in the complex geological environments of peat fields is achieved through in-pit processing of excavated organogenic raw materials via crushing to produce a by-product, utilizing the IPCC (In-pit Crushing and Conveying) technology. This article analyzes excavated peat raw material, determining the size-mass and physico-mechanical characteristics of typical peat shavings obtained from the Zaozerskoye deposit (No. 1021) in the Lomonosov District of the Leningrad Region. Requirements for the geometric parameters of the peat product at the output of the mobile organogenic raw material crushing module are defined. A theoretical basis for calculating energy consumption during the crushing of elastic-viscoplastic organogenic raw material, considering the dimensionality of the crushing process, is selected. An analysis of crushing methods and equipment is provided, with these methods serving to identify the optimal approach for processing excavated organogenic raw materials. Based on the findings, cutting using a drum milling working unit of the mobile crushing module is chosen as the preferred method, ensuring separation of woody inclusions and dispersion of the mixture composition. Technological requirements for the crushing process of excavated organogenic raw materials are substantiated, and key provisions for further research are formulated.

Kazakov Yu. A., Kozachkov G. S. Technological requirements for the processing of excavated organic raw material. MIAB. Mining Inf. Anal. Bull. 2025;(12-3):85—99. [In Russ]. DOI: 10.25018/0236_1493_2025_123_0_85.

The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (FSRW-2023−0002).

Kazakov J. A., Cand. Sci. (Eng.), assistant, https://orcid.org/0000-0002-7040-5412, Empress Catherine II Saint Petersburg Mining University,Saint Petersburg, 199106, Vasil’evskij ostrov, 21 linija d. 2, Russia, e-mail: Kazakov_YuA@pers.spmi.ru;
Kozachkov G. S., Ph.D. Student, https://orcid.org/0009-0003-2764-3807, Empress Catherine II Saint Petersburg Mining University, Saint Petersburg, 199106, Vasil’evskij ostrov, 21 linija d. 2, Russia, e-mail: gkozachkov16@mail.ru.

J. A. Kazakov, e-mail: Kazakov_YuA@pers.spmi.ru.

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