Coal quality control in the context of international standards ISO 9000 - 2000

Freidina, E. V.; Botvinnik, A. A.; Dvornikova, A. N.

doi:10.1007/s10913-008-0066-2

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…In the modern quality control theory, it is required to have methods of evaluating the agreement between the product quality and the consumer demand [10]. This fact implies the trend to making the quality stability robust both in terms of a consumer and the economy.…”

Section: Discussionmentioning

confidence: 99%

Methodology and development tool for robust control in open pit mines. Part I: decision-making system and mineral quality control

2014

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Topicality, concept, principles and tool of the robust control in open pit mining are given. It is shown that each stage of the product quality control must have permissible range of fluctuation for coal properties, loading equipment capacity and work area limits in open pit mines. The goal and capabilities of the robust control is the stable operation of the production system within the set limits and constraints. The article presents methodology and implementation tool for the robust control in open pit coal mines.

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Section: Discussionmentioning

confidence: 99%

Methodology and development tool for robust control in open pit mines. Part I: decision-making system and mineral quality control

2014

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“…In combustion of coal or biomass it is important to have up-to-date and detailed information on the quality of the fuel sample entering the combustion chamber. For collecting a representative sample of fuel from a continuous transport process, different types of sampling devices are used [1][2][3][4]. In most cases, fuel samples are collected directly even several times per shift [5].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Setting the Operating Conditions of the Sampling Device on the Representative Sample of Coal

Žurovec

Nečas

Rozbroj

et al. 2021

GSE

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Currently, emphasis is placed on the efficiency of process technology in the production of energy. Large energy corporations are forced to develop new and optimize existing technologies to reduce emission limits. In coal and biomass combustion technologies, it is important to continually monitor and evaluate the quality of input material. A sampling device is used to obtain a representative sample of the fuel from the conti nuous conveying process. In this research work, the effect of setting the operating conditions of the rotating sampling device for coal, which is intended for combustion is investigated. From the operating tests, it was found that the different settings of the sampling device (velocity, dimensional parameters) influence the quality and quantity of a representative sample of coal taken from the belt conveyor of the technological line.

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“…In coal mines and incineration plants it is necessary to have an overview and records of coal quality [1,2,3]. The aim is to maintain and check high quality of coal at stable favourable prices even with respect to the environment [4].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Material Flow Through a Sample Divider

Rozbroj¹,

Nečas²,

Žurovec³

et al. 2018

Adv. Sci. Technol. Res. J.

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The prerequisite for a modern approach to innovative procedures of the development of current or even newly created equipment for the transport of particulate materials is the utilization of simulation methods, such as the Discrete Element Method (DEM). This article focuses on the basic, or initial, validation of movement of material through the sample divider. The mechanical-physical properties of brown coal were measured. Based on these parameters the preliminary input values for EDEM Academic were selected, and a simulation of the dividing process was run. The key monitored parameters included density and friction coefficient. Experiments on a realistic model of the equipment were performed and assessed. The total weights of brown coal at the exit from the divider were determined for a specific speed of the divider. The aim of this task was to simulate the realistically determined weight division of the brown coal sample. The result from the DEM was compared with the results of measurement on a realistic model.

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Coal quality control in the context of international standards ISO 9000 - 2000

Cited by 9 publications

References 3 publications

Methodology and development tool for robust control in open pit mines. Part I: decision-making system and mineral quality control

Methodology and development tool for robust control in open pit mines. Part I: decision-making system and mineral quality control

The Effect of Setting the Operating Conditions of the Sampling Device on the Representative Sample of Coal

Simulation of Material Flow Through a Sample Divider

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