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Spontaneous combustion characteristics and micro

Spontaneous combustion of coal gangue( CG) causes serious environmental and ecological problems. The oxidation characteristics of coal gangue such as mass loss rate gas production rate and functional group change were studied using thermogravimetry-fourier transform infrared spectrometer( TG-FTIR) technique and temperature programming experiment.

Spontaneous Combustion Management Guideline

 · spontaneous combustionOxidisation of coal is a normal process and this produces heat and certain gases. (All coal oxidizes). Spontaneous combustion is the process by which certain materials can ignite as a result of internal heat which arises spontaneously due to reactions liberating heat faster than it can be lost to the environment

(PDF) Environment influences and extinguish technology

PDF This paper has tested the CO source of 2521 fully mechanized face through SF6 gas and contrapuntally made the comprehensive control technology Find read and cite all the research you

Thermogravimetric analysis of the co-combustion of coal

 · respectively. Co-combustion can reduce the activation energy of coal gangue during the ini-tial and end stages. Therefore co-combustion is helpful to improve the problems of low calo-rific value and refractory burnout of coal gangue. Introduction Coal gangue (CG) is a common industrial solid waste. An economical reliable and compre-

Combustion properties of coal gangue using

 · CG is a complex industrial solid waste generated from the coal mining and washing process. Because of long-term stacking spontaneous combustion frequently occurs in coal and carbonaceous materials this phenomenon has been reported worldwide .

Investigation of the kinetics of spontaneous combustion of

 · Coal spontaneous combustion (CSC) is a potential disastrous event related to coal mining. It is known that the coal is rich in the Xinjiang region of China which has experienced severe coal

CO2 and SO2 emission characteristics of the whole

 · Coal gangue spontaneous combustion releases a largeamountof SO2to form acid rain which makes the soilacidified and salinized and also causes corrosion of sur-rounding buildings (Su et al.2011). As a kind of energyresource coal mine methane is also a greenhouse gas witha high global warming potential (GWP) ( et al.2009 Miller et al.2019). One ton of methane is equivalentto 21 tons of carbon dioxide

Research on the technology of detection and risk

 · The spontaneous combustion of coal gangue generates a large amount of toxic and harmful gasses such as SO 2 CO H 2 S and benzo(α)castor which pollute the atmospheric environment (Wang et al. 2016 Li et al. 2016 Wang 2013) and are more likely to cause more devastating disasters such as explosions.Regarding the photovoltaic power plant the toxic and harmful gasses produced by coal

Coal seams with a history of spontaneous combustion

 · Details. List of coal seams which have been know to suffer from occurrences of spontaneous combustion and are consequently regarded as high risk of succumbing to spontaneous combustion

Characteristics of polycyclic aromatic hydrocarbon release

 · Generally the amount of PAHs produced by spontaneous combustion of low rank coal is much higher than that of high rank coal (Liu et al. 2000a Liu et al. 2000b). Different from general coal combustion spontaneous combustion of coal (gangue) belongs to the slow oxidation process in oxygen-lean condition.

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The non-spontaneous combustion coal gangue was selected for crushing and the coarse aggregate diameter was separated to 4.75 20mm. Strength grade C40 and water-cement ratio 0.45 are designed according to JGJ "Design Code for Mix Proportion of Ordinary Concrete" and JGJ

Combustion Properties of Coal Gangue Using

Deng et al. 4 have reported the spontaneous combustion properties of coal gangue using thermogravimetry system. During high oxygen concentra- tion levels volatile matter release and char

China Fire Extinguishing Project Of Coal Gangue

Fire Extinguishing Project of Coal Gangue in Gushuyuan Coal Mine. 1. Introduction. Some spontaneous combustion areas at the debris heap of Gushuyuan Coal Mine. There is a large-scale spontaneous combustion phenomenon in Gushuyuan Coal Mine of Shanxi Jincheng Anthracite Mining Group Company Limited.

Prediction of the elastic modulus of concrete with

 · CGAs are generally classified into two categories i.e. rock coal gangue aggregates (RCGAs) and spontaneous-combustion coal gangue aggregates (SCGAs) in which SCGAs are formed by spontaneous combustion. In this case the major difference between RCGAs and SCGAs is their aggregate stiffness which is governed by their porosity.

Spontaneous combustion of coal (Technical Report)

Spontaneous-combustion studies of US coals. Rept. of Investigations/1987. Technical Report Smith A C Lazzara C P. This report describes laboratory studies conducted by the Bureau of Mines on the spontaneous combustion of U.S. coals. Approximately 11 pct of U.S. underground-coal-mine fires are attributed to spontaneous combustion.

The stage analysis and countermeasures of coal

 · The mechanism of the spontaneous combustion of coal has been studied since the seventeenth century and to date a number of coal spontaneous combustion theories have been proposed. These include the pyrite-related cause theory the bacteria-related cause theory the phenolic-groups-related cause theory and the coal-oxygen-compo und theory 1 .

Coal Spontaneous CombustionMarine Surveyor Information

 · 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 the oxidation then initiated the fire.

(PDF) Environment influences and extinguish technology of

PDF This paper has tested the CO source of 2521 fully mechanized face through SF6 gas and contrapuntally made the comprehensive control technology Find read and cite all the research you

CiteSeerX — INFRARED THERMOGRAPHY MONITORING

CiteSeerXDocument Details (Isaac Councill Lee Giles Pradeep Teregowda) Spontaneous combustion of mine rock dump (coal gangue pile) has posed a constant threat to the safety of mine areas by polluting its atmosphere water soil and even the threat of unpredictable explosion. Traditional monitoring techniques like utilizing thermocouples and thermometers can only measure the surface

Analysis on Explosion Characteristics of Coal Gangue Hills

In the process of the coal gangue hill explosion a lot of harmful gases can be released which seriously pollutes the atmospheric environment and is harmful to people s health meanwhile equipments and the surrounding buildings can also be destroyed which brings huge economic losses and casualties. In addition social problems caused by coal gangue hills will become a thorny problem for

CiteSeerX — INFRARED THERMOGRAPHY MONITORING AND EARLY

CiteSeerXDocument Details (Isaac Councill Lee Giles Pradeep Teregowda) Spontaneous combustion of mine rock dump (coal gangue pile) has posed a constant threat to the safety of mine areas by polluting its atmosphere water soil and even the threat of unpredictable explosion. Traditional monitoring techniques like utilizing thermocouples and thermometers can only measure the surface

Do You Know Coal Gangue Processing Machinesliajones

 · Do You Know Coal Gangue Processing Machines. The supply of coal gangue Coal gangue would be the common term of solid waste materials coming from coal mine construction coal production method widely typical in the construction development diving coal mining and coal washing process with exhaust carbon rock. Three aspects of coal gangue source.

The environmental pollution and control of coal gangue

Coal gangue spontaneous combustion produces toxic and harmful gases. This research aims to study a new type of polymer nanocomposite inhibitor to prevent and control coal gangue spontaneous

Environmental characterization of burnt coal gangue banks

 · However spontaneous combustion is likely to occur when fresh coal or coal waste is suddenly exposed to the air for a variety of reasons (side cutting of stream landslides rapid erosion mining or dumping among others).

Environment influences and extinguish technology of

 · Coal gangue affected by spontaneous combustion and high temperature can have the following impact on environment 11-12 . For one thing spontaneous combustion of Coal Gangue Heaps releases large amounts of toxic and harmful gases including CO CO2 SO2 H2S etc. which cause serious pollution to the atmospheric environment.

Spontaneous combustiondefinition of spontaneous

Define spontaneous combustion. spontaneous combustion synonyms spontaneous combustion pronunciation spontaneous combustion translation English dictionary definition of spontaneous combustion. could be associated with NC-2 sample was exposed to a higher temperature during spontaneous combustion which may be related to a possible

Control system of spontaneous combustion in coal gangue

Spontaneous combustion in coal gangue dumps leads to pollution in the environment and damages ecosystem and human health. Mine operators usually fail to take effective measures against spontaneous combustion because of the inaccurate

(PDF) Power Generation from Coal Gangue in China Current

Therefore the heat generated by the combustion of coal gangue can be used for both power generation and heating. Generally the loss on ignition is between 10 and 30 and the calorific value

Research of Comprehensive Utilization of Coal Gangue

Its spontaneous combustion is also a primary environment problem in diggings. Toxic and harmful gases such as SO 2 and NO x are produced due to spontaneous combustion. Gangue is one of ten main industrial solid wastes of the world but the second using source today. In coal production coal gangue piles up in the form of gangue mountain.

Pore structure and its impact on susceptibility to coal

 · Coal rank has a significant influence on the propensity of coal to spontaneous combustion (Fig. 8a). A good linear relationship (R 2 =0.74) is exhibited between the coal rank and the CPT.

Spontaneous combustion mechanism of gangue in

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SPONTANEOUS COMBUSTION Fire Engineering

2 days ago · SPONTANEOUS COMBUSTION. Spontaneous combustion is the subject of an interesting bulletin issued by State Fire Marshal Walter H. Bennett of Springfield Ill. who in it says "Spontaneous

CO2 emission of coal spontaneous combustion and its

Coal spontaneous combustion is widely distributed all over the world. CO2 is the main greenhouse gas emitted by coal spontaneous combustion. In the present study characters of CO2 emitted by 10 typical Chinese coal spontaneous combustion and the influence of raw coal