fault tree analysis on coal mill

fault tree analysis on coal mill

Fuzzy fault tree analysis for coal burst occurrence ...

2019-1-1  Coal burst triggering mechanism can be divided into self-initiated and remotely triggered. One of the methods, which are used in system risk evaluation, is fault tree analysis. Fault tree is a top down, deductive failure analysis, which series of basic events combined with logical gates to analysis probability of undesirable or top event.

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Using Fault Tree Analysis to Focus Mine Safety Research

2012-8-30  Fault tree analysis is a systematic safety analysis tool that proceeds deductively from the occurrence of an undesired event (accident) to the identification of the root causes of that event. On e recurring mine safety pr ob lem— a dozer falling into a void over a drawpoint on a coal surge pile—was analyzed using available, inexpensive ...

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Fuzzy fault tree analysis for coal burst occurrence ...

Therefore, occurrence of coal burst as a top event in fault tree has been analyzed using fuzzy fault tree analysis. According to the results, occurrence probability values of coal burst with self-initiated and remotely triggered mechanisms are 0.9% and 11.6%, respectively in coal mines. In addition, the critical paths that lead to coal burst ...

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RISK ASSESSMENT BY FAULT TREE ANALYSIS OF

2016-3-7  which is the major hard coal producer in Turkey, are evaluated in order to achieve the goal. A deductive risk analysis technique, fault tree analysis (FTA), was implemented in order to specify the root causes of methane explosions. The methodology starts with examining the occupational accident statistics gathered from TTK.

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Coal Dust Explosion Fault Tree Analysis EdrawMax ...

As shown in the attached diagram, a coal dust explosion fault tree analysis (FTA) diagram is a top-down deductive failure analysis in which an undesired state of a system is analyzed using Boolean logic to combine a series of lower-level events. Fine bituminous coal dust is highly explosive when suspended in the air. In a typical coal dust explosion, as shown in the fault tree analysis diagram ...

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(PDF) Fault Tree Analysis: A Case Study from Machine Tool ...

The fault tree analysis (FTA) method is used for reliability modelling of the feeding control system. Considering the multiple common cause failure groups (CCFGs) existing in the system, a ...

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Investigation of haul truck-related fatal accidents in ...

In this study, combination of fuzzy theory and fault tree analysis have been used for coal burst occurrence probability analysis. Therefore, occurrence of coal burst as a top event in fault tree ...

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Fault Tree Analysis (FTA) and Event Tree Analysis (ETA)

2014-11-19  Fault tree analysis is one analytical technique for tracing the events which could contribute. It can be used in accident investigation and in a detailed hazard assessment. The fault tree is a logic diagram based on the principle of multi-causality, which traces all

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Pulverizer failure cause analysis. Final report (Technical ...

@article{osti_5750206, title = {Pulverizer failure cause analysis. Final report}, author = {Maloney, K. L. and Benson, R. C.}, abstractNote = {Large coal pulverizers have been identified by EEI surveys as one of the main systems responsible for lost steam generation capacity of large coal fired utility boilers. This report contains the results of a 16 month study to examine the problem of ...

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[PDF] Implementation of Failure Mode and Effect Analysis ...

DOI: 10.26593/jrsi.v9i3.4059.171-176 Corpus ID: 228958058. Implementation of Failure Mode and Effect Analysis and Fault Tree Analysis in Paper Mill: A Case Study @inproceedings{Nurwulan2020ImplementationOF, title={Implementation of Failure Mode and Effect Analysis and Fault Tree Analysis in Paper Mill: A Case Study}, author={Nurul Retno Nurwulan and

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Advances in Mechanical Engineering 2018, Vol. 10(8) 1–9 ...

2020-12-2  Fuzzy fault tree analysis for gas explosion of coal mining and heading faces in underground coal mines Shulei Shi1,2, Bingyou Jiang1,XiangruiMeng1 and Li Yang2 Abstract During the past decade, gas explosions have been one of the most serious types of disasters in China, threatening the

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A novel method of fuzzy fault tree analysis combined with ...

2017-8-9  The VB program technique remarkably simplifies the process of analysis and can work out the calculation results in a few minutes. Due to the complexity of the coal mine system, the fuzzy fault tree analysis of CDE is very difficult and time-consuming. The VB program technique makes it possible to quickly solve the complex fault tree for CDE.

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Coal Dust Explosion Fault Tree Analysis EdrawMax ...

As shown in the attached diagram, a coal dust explosion fault tree analysis (FTA) diagram is a top-down deductive failure analysis in which an undesired state of a system is analyzed using Boolean logic to combine a series of lower-level events. Fine bituminous coal dust is highly explosive when suspended in the air. In a typical coal dust explosion, as shown in the fault tree analysis diagram ...

More

Application of fault tree analysis to coal spontaneous ...

Application of fault tree analysis to coal spontaneous ...

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RISK ASSESSMENT BY FAULT TREE ANALYSIS OF

2016-3-7  which is the major hard coal producer in Turkey, are evaluated in order to achieve the goal. A deductive risk analysis technique, fault tree analysis (FTA), was implemented in order to specify the root causes of methane explosions. The methodology starts with examining the occupational accident statistics gathered from TTK.

More

A novel method of fuzzy fault tree analysis combined with ...

2017-8-9  The VB program technique remarkably simplifies the process of analysis and can work out the calculation results in a few minutes. Due to the complexity of the coal mine system, the fuzzy fault tree analysis of CDE is very difficult and time-consuming. The VB program technique makes it possible to quickly solve the complex fault tree for CDE.

More

Advances in Mechanical Engineering 2018, Vol. 10(8) 1–9 ...

2020-12-2  Fuzzy fault tree analysis for gas explosion of coal mining and heading faces in underground coal mines Shulei Shi1,2, Bingyou Jiang1,XiangruiMeng1 and Li Yang2 Abstract During the past decade, gas explosions have been one of the most serious types of disasters in China, threatening the

More

Analysis of the Conveyor belt fault based on fault tree ...

in this paper, by using the fault tree analysis method, through the analysis of the common fault of belt conveyor, establishing the fault tree with 4 logic or gate, the 1 logic gate, 9 bottom events. the qualitative analysis found that the conveying belt and conveyor belt tension overload and the belt deviation are the main factor leading to the accident, According to the method of fault tree ...

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SAFETY RISK ANALYSIS AND MANAGEMENT

2014-12-1  Hybrid Risk Analysis Techniques These are: Fault-tree analysis (FTA) and the ETA method (Event Tree Analysis). FTA is an analysis technique that visually models how logical relationships between equipment failures, human errors, and external events can combine to cause specific accidents. Fault trees are constructed from events and gates.

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Observer and Data-Driven-Model-Based Fault Detection in ...

2008-4-30  Abstract: This paper presents and compares model-based and data-driven fault detection approaches for coal mill systems. The first approach detects faults with an optimal unknown input observer developed from a simplified energy balance model. Due to the time-consuming effort in developing a first principles model with motor power as the controlled variable, data-driven methods for fault ...

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Reliability Assessment of Cogeneration Power Plant in ...

2010-12-2  Reliability Assessment of Cogeneration Power Plant in Textile Mill Using Fault Tree Analysis Reliability Assessment of Cogeneration Power Plant in Textile Mill Using Fault Tree Analysis Ramesh, Vallem; Saravannan, R. 2010-12-02 00:00:00 J Fail. Anal. and Preven. (2011) 11:56–70 DOI 10.1007/s11668-010-9410-3 TECHNI C AL ARTICLE—PEER-REVIEWE D Reliability Assessment of

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[PDF] Implementation of Failure Mode and Effect Analysis ...

DOI: 10.26593/jrsi.v9i3.4059.171-176 Corpus ID: 228958058. Implementation of Failure Mode and Effect Analysis and Fault Tree Analysis in Paper Mill: A Case Study @inproceedings{Nurwulan2020ImplementationOF, title={Implementation of Failure Mode and Effect Analysis and Fault Tree Analysis in Paper Mill: A Case Study}, author={Nurul Retno Nurwulan and

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ENVIRONMENTAL AND SAFETY RISK ASSESSMENT IN

2012-7-3  FaultTree+ analysis program for Microsoft Windows enables us to analyse the availability and reliability of both complex and simple systems and is easy and intuitive to use. FaultTree+ provides an integrated environment for performing fault tree analysis, event tree analysis and Markov analysis.

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RELIABILITY ENHANCEMENT OF STEEL ROLLING MILL

2019-2-22  : Steel Rolling Mill, TMT rod, Reliability, Fault Tree Analysis. 1. Introduction . In today’s competitive world, the reliability of equipment is extremely important to maintain quality and to meet delivery deadlines [12]. This is - achieved by using proper maintenance strategies and design changes for

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Application of fault tree analysis to coal spontaneous ...

Application of fault tree analysis to coal spontaneous ...

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Analysis of the Conveyor belt fault based on fault tree ...

in this paper, by using the fault tree analysis method, through the analysis of the common fault of belt conveyor, establishing the fault tree with 4 logic or gate, the 1 logic gate, 9 bottom events. the qualitative analysis found that the conveying belt and conveyor belt tension overload and the belt deviation are the main factor leading to the accident, According to the method of fault tree ...

More

Fault tree analysis and prevention strategies for gas

Particularly, this research has articulated the fault tree model in case of gas explosion in underground coal mines to analyze the root causes of this dangerous accident. Findings. This analysis has revealed that most of the root causes (4/7) with 5/10 accidents, 49/53 fatalities and 28/35 injuries resulted from primary failure of the gas explosion that poses a major threat to lives of mine ...

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SAFETY RISK ANALYSIS AND MANAGEMENT

2014-12-1  Hybrid Risk Analysis Techniques These are: Fault-tree analysis (FTA) and the ETA method (Event Tree Analysis). FTA is an analysis technique that visually models how logical relationships between equipment failures, human errors, and external events can combine to cause specific accidents. Fault trees are constructed from events and gates.

More

Reliability Analysis of CHU System of Coal Fired Thermal ...

2017-1-23  6. Reliability analysis For the reliability analysis of the considered system, first PN model is developed from its equivalent fault tree diagram shown in 5(a) and 5(b) which shows components configuration in series /parallel combination with OR /AND gate. FT and PN model for CHU system (a) (b) Fig 5: (a) Fault tree model (b) Petrinet model

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ENVIRONMENTAL AND SAFETY RISK ASSESSMENT IN

2012-7-3  FaultTree+ analysis program for Microsoft Windows enables us to analyse the availability and reliability of both complex and simple systems and is easy and intuitive to use. FaultTree+ provides an integrated environment for performing fault tree analysis, event tree analysis and Markov analysis.

More

Analysis of Failures and Influence Factors of Critical ...

By using fault tree analysis and Bayesian network, Dongiovanni and Iesmantas presented a new methodology to extrapolate and estimate components failure rate. It has been revealed that mean inherent availability ranges from 79% to 82% when turbine subcomponent failure rate varies from 1 E − 4/h to 1 E − 8/h in 20 years.

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COAL PHYSICAL TESTING - SGS

samples (2-10kg). These analysis can be done over a range of densities (S.G.1.30 to 2.20) and on coarse to fine coal separation. HARDGROVE GRINDABILITY TEST The Hardgrove Grindability test is a measure of coal’s resistance to crushing and attempts to reproduce the effects of continuous coal pulverization in a mill. A 50-gram sample of ...

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The Cost of Carbon Capture - CCST @ MIT

2021-1-6  (IGCC), pulverized coal-fired simple cycles (PC), and natural gas-fired combined cycles (NGCC). The analysis was based on studies from the literature that analyzed the economics of capturing CO 2 emitted at power plants. In this paper, we present a composite cost model and perform a sensitivity analysis to identify the cost-drivers for capture.

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Tony Sutherland - Technical Services Manager - Yancoal ...

Fault tree analysis is a powerful risk assessment tool for identifying root causes of an unwanted event that can then be managed with appropriate control measures. This method has been applied to the analysis of a spontaneous combustion event for the five year mine plan of

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Analisis Coal Plugging Atau Penyumbatan Batu Bara Pada ...

ABZ using the FTA (Fault Tree Analysis) Method and provides a proposed improvement with the 5W + 1 H Method (what, why, who, when, where and how). Based on the analysis using FTA, it was found that the cause of coal plugging or blockage that occurs in coal feeder machines is due to contamination of the coal used, low calorific value of coal ...

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NIOSHTIC-2 Publications Search - 10006165 - An

As a result, there is an increasing interest in the reliability of coal mine escapeways during a mine fire. This paper discusses the use of fault tree analysis for evaluating escapeway reliability. A fault tree is developed using standard logic formulations. It is later evaluated using commercially available software.

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