early detection of spontaneous combustion of coal in

  • CFD Modelling of Sampling Locations for Early Detection of

    The primary method used for the detection of spontaneous combustion in underground coal mines is the early detection of low levels of gaseous products of coal oxidation most often through the use of in-mine continuous gas analysers using a tube bundle gas

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  • 23 SPONTANEOUS COMBUSTION OF COAL AND ITS EARLY DETECTION

    The presented paper deals with spontaneous combustion process occurrence of spontaneous combustion of coal in OKR mines some findings in the area of early detection of coal by indicator gases it gives reasons for actual reserves in the given area and consider possibilities of improvement of temperature estimation of spontaneous combustion.

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  • EH-93-4 The Fire Below Spontaneous Combustion in Coal

    content coal will burn by itself. Spontaneous combustion has long been recognized as a fire hazard in stored coal. Spontaneous combustion fires usually begin as "hot spots" deep within the reserve of coal. The hot spots appear when coal absorbs oxygen from the air. Heat generated by

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  • Fundamental Studies on Early Detection of Spontaneous

    1) Spontaneous combustion of coal can be detected earlier by this detection system than by conventional CO detection system. 2) The most sensitive sensors for spontaneous combustion of coal were 112AJ and 453AA. 3) There is no difference in the results for different kinds of coal.

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  • Experimental study on CO and CO2 emissions from

    This paper attempts to provide experimental data to improve the early detection of spontaneous heating in underground coal mines. In this study laboratory-scale experiments were conducted to investigate the effect of initial temperature O 2 concentration and coal properties on the CO and CO 2 emissions during the spontaneous heating of three

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  • Early detection of spontaneous combustion of coal in

    Early detection of spontaneous combustion of coal in underground coal mines with development of an ethylene enriching system Jun Xie 1 Sheng Xue 1 Weimin Cheng 2 Gang Wang 1 CSIRO Earth Science and Resource Engineering PO Box 883 Kenmore QLD Australia 4069 Tel 61 7 Fax 61 7 Email Jun.Xie csiro

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  • Experimental study on CO and CO2 emissions from

    This paper attempts to provide experimental data to improve the early detection of spontaneous heating in underground coal mines. In this study laboratory-scale experiments were conducted to investigate the effect of initial temperature O 2 concentration and coal properties on the CO and CO 2 emissions during the spontaneous heating of three

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  • EARLY DETECTION OF SPONTANEOUS COMBUSTION

    of the spontaneous combustion of sulfide ores such that the preferred evaluation index can be obtained to detect the onset of the spontaneous combustion of sulfide ore stockpiles at an early stage. Three largescale sulfide orestockpiles were piled in a stope to obtain the preferred index and achieve the early detection of spontaneous combustion.

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  • Development of modified gas indices for early detection of

    early detection of spontaneous heating in coal pillars by D.C. Panigrahi and R.M. Bhattacherjee Synopsis Extensive field studies have been carried out to investigate the pillar fire problems in one coal mine in India. A Thermal IR gun and a Thermovision camera have been employed for thermal scanning to assess the state of heating in selected

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  • Tests to determine the spontaneous combustion propensity

    •Majority of tests measures reactivity of coal to oxidation • Term reactivity of coal used in other contexts too -for example • Propensity of coal to react with carbon dioxide to form carbon monoxide • During use as a reductantin pyro metallurgical processes Reactivity of coal • In terms of spontaneous combustion testing the term

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  • World CoalConscious Coal Milling The Engineer The

    Derek Stuart Global Product ManagerPower looks at why early detection of potential spontaneous heating and combustion locations in coal milling is essential to plant safety. All coals oxidise during storage but sub-bituminous coals (such as those from the Powder River Basin) due to their friability and porosity are especially prone to spontaneous combustion.

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  • Spontaneous CombustionDealing with an Event

    Coal mine gas emission assessment for sealed goaf area or abandoned mineself explanatory. Journal of the Operational Research SocietyAbstract of article Algorithms for the Detection of Spontaneous Combustion in Coal Minesnot free info subscription required. Coal oxidation at low temperatures etca study of the spon comb process

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  • Spontaneous Coal Combustion Part 1 A Burning Mystery

    India has the largest concentration of coal fires and it is estimated that 80 of those fires started due to spontaneous combustion. Indian coal fires were first documented in coal fields located in Raniganj back in 1865. In addition mines in Jharia Jharkhand are famous for their rich coal resources but records show nearly 70 fires have been burning for over 100 years dating back to 1916.

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  • (PDF) Spontaneous Heating and Fire in Coal Mines

    Spontaneous combustion of coal is a phenomenon that commonly occurs in hard coal mines 7 8 9 10 11 . It results from the self-ignition of coal following its self-heating in a mine heading or

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  • Early Detection of Spontaneous Combustion in Pellet Mills

    Jul 26 2019 · Fortunately there are techniques to detect the early stages of spontaneous heating and combustion allowing operators the chance to prevent the problem and avoid costly damages. Gas Detection Carbon monoxide (CO) monitoring is the most effective method of detecting the presence of spontaneous heating or combustion in an enclosed space such as

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  • Spontaneous combustion of coal and its early detection in

    SPONTANEOUS COMBUSTION OF COAL AND ITS EARLY DETECTION IN OKR MINES SAMOVZNÍCENÍ UHLÍ A JEHO VČASNÁ INDIKACE V DOLECH OKR Pavla GUŘANOVÁ Ing. Institute of Mining Engineering and Safety Faculty of Mining and Geology VŠB-Technical University of Ostrava 17. listopadu 15 Ostrava-Poruba Czech Republic tel. 420 596 995 475

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  • Analysis of Index Gases of Coal Spontaneous Combustion

    Analysis of the index gases of coal for the prevention of spontaneous combustion is of great importance for the enhancement of coal mine safety. In this work Fourier Transform Infrared Spectrometer (FTIRS) is presented to be used to analyze the index gases of coal in real time to monitor spontaneous combustion conditions. Both the instrument parameters and the analysis method are

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  • EARLY DETECTION OF SPONTANEOUS COMBUSTION

    of the spontaneous combustion of sulfide ores such that the preferred evaluation index can be obtained to detect the onset of the spontaneous combustion of sulfide ore stockpiles at an early stage. Three largescale sulfide orestockpiles were piled in a stope to obtain the preferred index and achieve the early detection of spontaneous combustion.

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  • Woodchip Stock Pile Spontaneous Combustion Early Detection

    Spontaneous combustion is also a consideration in Hay Straw Cotton Sugar Cane waste piles and compost piles. Early detection and prevention of spontaneous combustion is critical in order to prevent a serious incident occurring. Figure 1. Early Detection of a hot spot on a stockpile that can lead to spontaneous combustion

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  • Thermal Imaging Cameras Prevent Fires at Korean Coal Power

    Thermal Imaging Cameras Prevent Fires at Korean Coal Power Plant. To avoid the risk of spontaneous combustion in the coal conveyor system at the Dangjin Coal Fired Power Complex (DCFPC) in South Korea the owner of the plant the Korea East-West Power Company (EWP) has installed a fire warning system based on thermal imaging cameras.

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  • CO and CO2 emissions from spontaneous heating of coal

    taken to control and suppress the heating. Therefore early detection is critical in the prevention and control of fires caused by spontaneous combustion in underground coal mines. The primary method used for the detection of spontaneous combustion in underground coal mines is

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  • Experimental study on CO and CO2 emissions from

    This paper attempts to provide experimental data to improve the early detection of spontaneous heating in underground coal mines. In this study laboratory-scale experiments were conducted to investigate the effect of initial temperature O 2 concentration and coal properties on the CO and CO 2 emissions during the spontaneous heating of three

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  • Prediction of Spontaneous Combustion Its Prevention in

    Dec 05 2017 · Prediction of Spontaneous Combustion in Coal Storage Handling-Spontaneous combustion or Self-heating in Coal or petcoke storage can be detected early in its development stage i.e. before any obvious smoke and/or flame. Hot spots can be detected by infrared monitoring instruments or

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  • Early detection system for coal spontaneous combustion by

    As a common hazard coal spontaneous combustion (CSC) causes the loss of coal in piles and mines. To rapidly and reliably forecast CSC a portable and powerful detection system based on a laser

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  • Early detection of spontaneous combustion of coal in

    Spontaneous combustion of coal (sponcom) is a major hazard in underground coal mining operations. If not detected early and managed properly it can seriously affect mine safety and productivity. Gaseous products of sponcom such as carbon monoxide ethylene and hydrogen are commonly used in coal mines as indicators to reflect the state of the

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  • Prevention and Control Module for Spontaneous Combustion

    Spontaneous combustion of coal is a common concern within the coal stockyard of thermal power plants due to the direct effect that energy losses have on financial performance. As coal is the primary fuel for a thermal power plant adequate emphasis needs to be given for its proper handling and storage.

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  • Spontaneous Combustion A History of Coal Pile Maintenance

    Apr 29 2016 · Maintaining diligent upkeep through regular cleanings also greatly reduces the risk of spontaneous combustion as does installing infrared sensors and linear heat detection systems to help catch a fire early on. The accumulation of coal dust can similarly lead to combustion making sound dust control a crucial component of fire prevention in mines.

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  • Spontaneous Combustion A History of Coal Pile Maintenance

    Apr 29 2016 · Maintaining diligent upkeep through regular cleanings also greatly reduces the risk of spontaneous combustion as does installing infrared sensors and linear heat detection systems to help catch a fire early on. The accumulation of coal dust can similarly lead to combustion making sound dust control a crucial component of fire prevention in mines.

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  • CFD modelling of sampling locations for early detection of

    The primary method used for the detection of spontaneous combustion in underground coal mines is the early detection of low levels of gaseous products of coal oxidation most often through the use of in-mine continuous gas analysers using a tube bundle gas sampling system although gas samples can also be obtained for laboratory analysis by gas

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  • Detection and prevention of spontaneous combustion

    Aug 02 2014 · Summary of problems due to spontaneous combustion The problems due to spontaneous combustion of coal can be categorized according to the method of working adopted i.e. (1) Underground (2) Opencast (1) Underground The universal problem due to spontaneous combustion in an underground mine is fire or precisely "coal seam fire".

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  • Development of modified gas indices for early detection of

    early detection of spontaneous heating in coal pillars by D.C. Panigrahi and R.M. Bhattacherjee Synopsis Extensive field studies have been carried out to investigate the pillar fire problems in one coal mine in India. A Thermal IR gun and a Thermovision camera have been employed for thermal scanning to assess the state of heating in selected

    Chat Online
  • Early Fire Detection FLIR Automation FLIR Systems

    Storage of some material invites the risk of spontaneous combustion. As always prevention is better than a cure. A thermal imaging camera can help to ensure safety and detect spontaneous combustion. It provides continuous remote monitoring of temperatures in piles of coal

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  • Spontaneous Coal Combustion Part 1 A Burning Mystery

    India has the largest concentration of coal fires and it is estimated that 80 of those fires started due to spontaneous combustion. Indian coal fires were first documented in coal fields located in Raniganj back in 1865. In addition mines in Jharia Jharkhand are famous for their rich coal resources but records show nearly 70 fires have been burning for over 100 years dating back to 1916.

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  • Coal Stock Pile Spontaneous Combustion Early Detection

    Spontaneous combustion is a common occurrence when storing coal for extended periods of time. This may also be problematic when stockpiling waste/spoil materials that contain large quantities of coal. Early detection and prevention of spontaneous combustion is critical in order to prevent serious incidents occurring.

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  • Early detection of mine fire in underground by using smell

    article osti_269230 title = Early detection of mine fire in underground by using smell detectors author = Ohga Kotaro and Higuchi Kiyoshi abstractNote = In our laboratory a new detection system using smell detectors was developed to detect the spontaneous combustion of coal and the combustion of other materials used underground.

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  • Early Fire Monitoring for Coal Stockpile / Coal Conveyor

    More and more power plants coal handling plants and coal preparation plants today are using carbon monoxide products of combustion / spontaneous combustion of coal sensors to detect very early smouldering fires or hot spots and methane detection to prevent explosions.

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