quality control coal mining

Quality control of microseismic P-phase arrival picks in coal mine ...

2021.11.1 Quality control of microseismic P-phase arrival picks in coal mine based on machine learning - ScienceDirect. Computers Geosciences. Volume 156, November 2021, 104862. Quality control of microseismic P-phase arrival picks in coal mine based on

Coal Quality Control in Mining Complex-Structure Deposits

2020.1.6 In terms of the Elga deposit in South Yakutia, potentiality of increase in completeness and quality of coal extraction based on the studies into structure and

COAL QUALITY CONTROL IN THE CONTEXT OF

2017.8.29 As a consequence, the quality management is a liaison of four business-processes or functional subsystems, that are (1) management responsibility; (2) resource

Quality Control in Export Coal - JSTOR

This paper addresses the quality control problem faced by a coal mine of satisfying a specified minimum net calorific value (NCV) requirement for the coal loaded at an export

Reducing coal quality attributes variability using properly designed ...

2010.11.1 Abstract. Mineral processing efficiency depends on various factors and one of them is quality fluctuations feeding the processing plant. Coal quality can fluctuate

Geostatistical coal quality control in longwall mining

2010.3.1 The coal quality is an important aspect of coal mine planning. This paper presents a case study in which an underground coal mine is faced with severe penalty

Coal Quality Control with Control Charts: Coal Preparation:

2006.12.21 Abstract. Coal properties are inherently variable even within a single coal seam due to reasons such as coalification history and mining method. Since

Coal Quality Control in Mining Complex-Structure Deposits

2019.5.1 Coal Quality Control in Mining Complex-Structure Deposits. May 2019. Journal of Mining Science 55 (3):399-406. DOI: 10.1134/S1062739119035721. Authors:

Quality control of microseismic P-phase arrival picks in coal mine ...

Quality control of microseismic P-phase arrival picks in coal mine based on machine learning Semantic Scholar. DOI: 10.1016/j.cageo.2021.104862. Corpus ID: 237425372. Quality

Quality control of microseismic P-phase arrival picks in coal mine ...

2021.11.1 Quality control of microseismic P-phase arrival picks in coal mine based on machine learning. Authors: Mengbo Zhu. , Jianyuan Cheng. , Zheng Zhang. Authors Info

Evolution of soil quality on a subsidence slope in a coal mining

2022.3.15 Coal mining subsidence (CMS) can severely damage soil quality. The relationships among the variables influencing soil quality are complex and variable in time and space. This study characterized the changes of, and interrelationships among, soil quality variables in the 0–60-cm soil layer on a CMS slope applied complex network

Management Pengendalian Kualitas Batubara

mining with the mining system implemented is the open pit mining system. coal produced by PT. BGG consists of different types grouped by their caloric value. To maintain the quality of coal, the company must have a coal quality control management

Global evolutional trend of safety in coal mining industry: a ...

2023.4.1 Mining safety is recognized as one of the factors influencing the mining industry’s long-term viability. Therefore, we did a bibliometric analysis to take stock of safety management in the coal mining industry. This study suggests a three-step strategy, comprising literature extraction and screening, bibliometric analysis, and discussion, to

Advances in Coal Mine Ground Control - ScienceDirect

2017.1.1 Testing of Bolt Support Quality and Warning of Surrounding Rock Instability In Coal Mine Roadways 240. 8.3.1. Anchorage quality testing of newly installed bolts 240. 8.3.2. The different stages of mining encountered in the service life of coal mine roadways and the corresponding working characteristics of bolts 243. 8.3.3

Fundamentals of modern ground control management in

2020.9.1 Australia’s coal mining safety record outperforms that of the U.S., China and other major coal mining countries, with the fatal risks associated with strata failure typically well managed [2]. Large ground control failures resulting in unplanned delays to production and lost revenues do still occur relatively frequently but are often only ...

Assessment of air pollution around coal mining area:

2014.1.1 Quality control analysis. The wet chemistry methods for SO 2 and NO 2 monitoring were standardized with automatic SO 2 photometric analyzer (Model 319, Kimoto, Japan) ... (7.54% variance) are the other causes of air quality deterioration around the coal mining areas. Pollution prevention advanced mining technology and effective

Learn Types, Tests, and Coal Quality Parameters - Sucofindo

2023.3.8 There are 5 types of coal that you need to know, namely: 1. Peat. The type of coal that is still in the early phase of coal formation. The sediment which still shows its basic ingredients, namely plants, makes this type of the lowest value. Because the water content is still above 75% and the carbon value is low. 2.

Coal Quality Control in Mining Complex-Structure Deposits

2020.1.6 In terms of the Elga deposit in South Yakutia, potentiality of increase in completeness and quality of coal extraction based on the studies into structure and contact zones of seams is illustrated. The schemes are proposed for ash content control in coal mining through extraction of dirt and high-ash interbeds of various thickness.

AUSTRALIAN GUIDELINES FOR THE ESTIMATION AND

2023.11.30 the reasonable prospects test. It may include coal that currently has low prospectivity due to natural or cultural features that preclude mining. For further information refer to section 6.1 and Appendix C (Q1 to 3). Quality (Coal) Quality is a term that encompasses all aspects of rank, type and grade that contribute to

Risk Assessment of Coal Dust Explosions in Coal Mines Using

Despite being crucial for meeting the world’s energy demands, coal mining operations present considerable health risks, especially when it comes to exposure to coal dust. Longwall coal mining, an advanced technique, has considerably enhanced production but made dust control more difficult. Due to its explosive nature, coal dust continues to be a

Quality control of microseismic P-phase arrival picks in coal mine ...

2021.6.25 Mining expects to relieve or solve coal mine safety, health and intensive labor issues and ensure energy security by applying intelligent coal mining. This paper fully reviews the promotion of ...

Quality control reporting requirements by the mining industry

Quality assurance (QA) and quality control (QC) are the two major components of any quality management system. According to ISO’s definition, QA is “the assembly of all planned and systematic actions necessary to provide adequate confidence that a product, process, or service will satisfy given quality requirements,” and QC refers to “the system

Quality Assurance – PT Kaltim Prima Coal - KPC

Main Office M1 Building Mine Site Sangatta, Kutai Timur Kalimantan Timur – Indonesia Phone: +62 549 52 1155 Fax: +62 549 52 1701 Email: [email protected]

Geostatistical coal quality control in longwall mining

2010.3.1 The importance of coal quality control parameters, in particular the calorific value, in the planning of mining production was stressed in the study of Hindistan (Hindistan et al., 2010), among ...

Coal Quality Control in Mining Complex-Structure Deposits

2019.5.1 Coal Quality Control in Mining Complex-Structure Deposits. May 2019. Journal of Mining Science 55 (3):399-406. DOI: 10.1134/S1062739119035721. Authors: E. A. Khoyutanov. V. L. Gavrilov. To read ...

Quality Control in Export Coal - JSTOR

This paper addresses the quality control problem faced by a coal mine of satisfying a specified minimum net calorific value (NCV) requirement for the coal loaded at an export harbour, by means of a control strategy on the gross calorific value (GCV) at the mine's wash-plant. From the NCV: GCV relationship a formula for the target mean GCV at ...

Quality control of microseismic P-phase arrival picks in coal mine ...

DOI: 10.1016/j.cageo.2021.104862 Corpus ID: 237425372; Quality control of microseismic P-phase arrival picks in coal mine based on machine learning @article{Zhu2021QualityCO, title={Quality control of microseismic P-phase arrival picks in coal mine based on machine learning}, author={Mengbo Zhu and Jianyuan Cheng and Zhengxia Zhang},

Evaluation of the pre-drained coal seam gas quality

2014.8.15 In our recent work, a fully coupled coal deformation and compositional (coal seam gas and air) flow model of the pre-mining coal seam gas extraction was developed to demonstrate the feasibility and effectiveness of a new in-situ gas quality control technology that involves the injection of fine expansive particles into the leakage fractures ...

Coal explained Coal and the environment - U.S. Energy

Several principal emissions result from burning coal : In 2022, CO 2 emissions from burning coal for energy accounted for about 19% of total U.S. energy-related CO 2 emissions and for about 55% of total CO 2 emissions from the electric power sector. U.S. air pollution laws now require most fly ash emissions to be captured by pollution-control ...

Improving efficiency of thermal power plants through mine coal quality ...

2017.1.1 1. Coal quality control begins with the controlling of geologically defined domains in coal deposit. characterized by uniform properties such as: calorific value, sulphur, ash, moisture etc. The ...

Monitoring Air Quality In Mining: Importance And Best

2023.8.2 The best practices for air quality control in mining. ... Green mining practices, such as methane capturing techniques can help to keep methane gas — a byproduct of coal mining — to a minimum. For example, fans can be used to pull methane out of the mine, oxidize it, and turn it into carbon dioxide and water vapor to be released

(PDF) Coal Quality Control from Front to Stockpile at PT

2023.6.1 The results of the analysis of coal quality show changes when coal is. transported to the stockpile from the mining front with a change in quality of 2.78% total moisture, 15. 65. ash content ...

Coal Analysis Malvern Panalytical

Independent from the use for power plants, steel making or anode production, coal mining and beneficiation must ensure consistent quality of coal under sustainable conditions. Malvern Panalytical delivers tailored analytical solutions to control ash percentage in coal, to monitoring deleterious elements and moisture and to predict ...

Geostatistical coal quality control in longwall mining

2010.3.1 Fig. 2 a presents the generalized stratigraphy of the area where coal zone contains three seams (namely upper, middle and lower seams) with four clay partings. Total thickness of coal zone is, in average, 10.3 m including 0.9 m partings.According to production method, 1.8 m of lower seam is excavated from the face which is advancing

Frontiers Research on top-level planning for sustainable high-quality ...

2023.11.1 Coal is the dominant energy source in China, as it has an advantageous position in terms of resource distribution. Against the backdrop of China’s high-quality economic development and the global energy crisis, after nearly a decade of preparation, the Xinjie Taigemiao Mine Area (XTMA) has entered the substantial planning and design

Coal Quality Monitoring with Coal PGNAA Analyzer

PGNAA or PFTNA coal analyser and software that measure sulfur, ash, moisture, calorific value to control coal quality and blend consistency in coal mining and production. Contact a coal analysis sales representative to discuss your coal analyzer today or

Coal Quality Control in Mining Complex-Structure Deposits

2019.5.1 In terms of the Elga deposit in South Yakutia, potentiality of increase in completeness and quality of coal extraction based on the studies into structure and contact zones of seams is illustrated. The schemes are proposed for ash content control in coal mining through extraction of dirt and high-ash interbeds of various thickness.

Quality Control (Coal Mining) – Mimir

2023.4.25 KTC Coal Mining Energy membutuhkan karyawan sebagai: Quality Control (Coal Mining) Deskripsi pekerjaan: Memeriksa kualitas batu bara agar sesuai dengan standar yang telah ditetapkan perusahaan. Memastikan kualitas batu bara sesuai dengan kebutuhan konsumen.

Coal quality control in the context of international standards ISO

2009.3.25 The paper sets forth scientific foundations and organizational-technical environment offered by ISO 9000 standards that are oriented to product quality management and, thus, product quality planning. The authors describe the results of coal product quality planning with using the QFD methodology, present a model of coal quality control

Coal mining - Underground, Surface, Drilling Britannica

Coal mining - Underground, Surface, Drilling: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal

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