Introduction

Matei, Alexandru; Moraru, Christian; Terian, Andrei

doi:10.5040/9781501358982.ch-00i

Cited by 2 publications

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“…The time interval that exists between the moment when the coal passes from the normal temperature of the rock to the temperature at which the first perceptible signs of combustion appear is much greater than that which separates this stage from the one in which the coal is incandescent. [5] Methane drainage, known in mining technology as a degassing method, proved to be an effective means of combating gases. Strata known to have a high methane content are subjected to degassing either before the start of exploitation, or concurrently with it, or afterwards, from the exploited spaces in order to keep the methane concentration of the air currents below the limits allowed by the regulations.…”

Section: Fig 6 Co2 Dispersion and Working Conditionsmentioning

confidence: 99%

Analysis of security parameters specific to coal mines

Boantă,

Rădoi

2024

MATEC Web Conf.

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Coal continues to remain a basic energy source for industry, but the impact on the environment and underground security resulting from its extraction and use must be given ever-increasing attention. Ecological impact analysis is currently the most powerful tool for preventing pollution and environmental degradation, respectively for underground security, in any project related to coal mining. The current trend of restricting mining activity in more productive perimeters, but far from the main connections with the surface, implies a substantial increase in the demand for ventilation systems due to underground pollutants and implicitly the continuously increasing risk factors. The particularly complex conditions and with major implications in the security levels of mining operations require the objectification of control by monitoring security parameters, through systems, installations, devices and modern automatic programs in parallel with the manual control system with modern portable devices. The paper analyzes the possibility of monitoring security parameters related to the environment, mine fires and degassing installations specific to mining operations in the Valea Jiului coal basin, in order to remove several risk factors that endanger underground mining. The main safety parameters analyzed refer to the underground environment, endogenous fires and degassing of coal seams. The parameters that are followed in order to assess the efficiency of the degassing networks are: the depression in the degassing network, the methane concentration of the captured gas and the methane flow from the network.

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Section: Fig 6 Co2 Dispersion and Working Conditionsmentioning

confidence: 99%

Analysis of security parameters specific to coal mines

Boantă,

Rădoi

2024

MATEC Web Conf.

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“…This aspect put special problems for ventilation specialists because main ventilation stations, horizons or operating blocks can be removed from the ventilation network. [3,4,5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Restructuring Simulation of the Ventilation Network

et al. 2021

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Worldwide, the demand for raw materials and materials is constantly increasing, being proportional to the growth of the population. In this sense, the demand and production of solid fuels such as coal has grown steadily. At the level of the European Union, due to the restrictive coal extraction policy, production has steadily decreased and coal-producing countries have had to implement closure programs with strict deadlines. As mining networks shrink, there is an intensification of risk factors due to changes in the ventilation system. The paper presents the restructuring of a complex ventilation network.

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Introduction

Cited by 2 publications

References 0 publications

Analysis of security parameters specific to coal mines

Analysis of security parameters specific to coal mines

Restructuring Simulation of the Ventilation Network

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