sensors used in coal mining

Which Gas Sensor We Can Use In Mining GDS Corp
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May 23 2019 0183 32 To make this happen mining sensor technology relies not only on advanced electronics and precise calibrations of sensors but also detectors equipped with various alarm systems With most detectors the alarm systems include sirens flashing lights and strobes all of which can be useful should a shaft need to be evacuated in the event of an...

The Sensors Used in Mining Applications
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Jul 10 2019 0183 32 So sensors play a vital role in both safety and maintenance in the mining industry Sensors for Safety Given the nature of the work performed in the mine there are many sensors that are used in a mine to cover various safety aspects These range from gas sensors all the way to personnel sensors...

Radiation sensor
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In coal mining for example radiation sensors are used to detect radiation emissions from layers of shale and other materials carried in the ground Typically a coal mine is found to contain alternating layers of coal and shale and other materials mixed in the shale Radiation is generally emitted from the shale layer and through the inert...

Coal mine area monitoring method by machine learning and
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Dec 01 2019 0183 32 In the field of coal exploration according to the different spectral characteristics of coal and other objects on the ground the coal mining area is analyzed by remote sensing technology to obtain the coal mine distribution coal composition and the ecological environment around the coal mine Schroeter et al used the spectral...

Coal mine safety system using Li
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used in underground mines application Ultra Wide Band system is another radio system for short-range communication with very low power and very high data rate 10 3 SYSTEM ANALYSIS 31 System architecture In order to remotely monitor the minors in the underground we use gas sensors temperature sensorsIn order to evaluate the...

Automatic Monitoring System in Underground Engineering
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Most of the research focuses on the wireless sensor network technology WSN and it is widely used in coal mining monitoring Bo et al 11 proposed a safety monitoring system for an underground coal mine based on the wireless sensor network...

Fiber Bragg grating FBG sensors used in coal mines
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The fiber Bragg grating FBG strain sensors were used for on-line monitoring of the stress variation of the lined wall in the gateway retained along the goaf of No 3203 coal mining face in Dongtan Mine The results showed that the FBG strain sensor with the wide measuring range could measure the stress variation accurately during the support process of the gateway retained along the goaf and...

Method of measuring uncut coal rib thickness in a mine
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The coal cutting machines 196 can have a body mounted coal thickness sensor 268 mounted on the surface of the machine 196 or a drum mounted coal thickness sensor 270 The sensors 268 and 270 could be the uncut coal sensor 119 described previously with the preferred embodiment being the sensor that measures electrical conductance as described...

Gas detector
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History Gas leak detection methods became a concern after the effects of harmful gases on human health were discovered Before modern electronic sensors early detection methods relied on less precise detectorsThrough the 19th and early 20th centuries coal miners would bring canaries down to the tunnels with them as an early detection system against life-threatening gases such as carbon...

Coal mining applications of CdTe gamma ray sensors
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Jan 01 1990 0183 32 Coal mining applications of CdTe y-ray sensors a waterproof electrical connector mounted to one crud The tube is 45 in in diameter and the tube walls sire 025 in thick During operation several of the detector elements are placed facing the outside walls of the mine and the level of radiation is monitored at oach position...

Assessing Soil Organic Matter Content in a Coal Mining
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Soil organic matter SOM is a crucial indicator for evaluating soil quality and an important component of soil carbon pools which play a vital role in terrestrial ecosystems Rapid non-destructive and accurate monitoring of SOM content is of great significance for the environmental management and ecological restoration of mining areas Visible-near-infrared Vis-NIR spectroscopy has proven...

Resources Free Full
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Adapting such sensors for use in an underground coal mining environment was the focus of this research effort and involved trialing a suitable sensor in dust and smoke chambers as well as trials in an underground coal mine with introduced dust Data processing and the development of a suitable user interface were key aspects of the research...

5 Optimizing Monitoring and Sampling Strategies
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As discussed below it is important to evaluate area monitors for possible use in coal mining environments Mine operators would need scientific support to identify criteria for determining the successful use of the monitors It is likely that the use of the lower-cost sensors would not be available for compliance control in the near future...

IOT Based Coal Mine Safety Monitoring and Alerting System
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Coal mining is the process of extracting coal from the ground Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production Underground mining industry comes to the category where each and every parameter such as methane gas high temperature fire accidents and so on has to be monitored regularly...

Monitoring Velocity Changes Caused By Underground
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Key words Monitoring scattering coda waves coal mine induced seismicity 1 Introduction Two techniques of coal exploitation are often used open-pit mining for shallower coal seams up to about 300 m and underground mining for deeper seams In Poland underground mining is more com-mon and people use longwall and room-and-pillar systems...

Optimal location of water level sensors for monitoring
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The results show that at least 22 36 42 64 and 106 water level sensors are needed to monitor water disasters in the whole mine within 60 30 20 10 and 5 min respectively...

Methane Sensing for Coal Mining
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The resultant gas is present both as liberated gas in fissures and as absorbed gas on the inner surface of the coal During mining operations the mine gas is released causing a real fire and explosive risk The main constituents of Mine gas are Oxygen O 2 Nitrogen N 2 Carbon Dioxide CO s and CH 4 If blasting operations are used in...

IoT integrated systems for process optimization in mining
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In mining for example we could actually be putting specialized sensors on mining vehicl With specialized sensors we can monitor different things and actually transmit data either over a satellite network depending on where the vehicles are or over a cellular network so that somebody can actually track the vehicl...

Mining Gas Detection Equipment MSHA Products
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CONSPEC has been serving the mining industry with MSHA products since 1978 and is a leader in the field of gas detection Our gas detection equipment is coal grade - built for...

The Design and Implementation of Coal Mine Monitoring
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4 in the management and use of explosive coal mining enterprises need to use large amounts of explosive in daily continued production many malignant mine disasters are due to improper management and use of explosive While the existing explosive management work in coal enterprise internal is still in a comparative primary registration state...

Mining Edinburgh Sensors Gas Detection Monitoring
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Mine gas is present both as liberated gas in fissures and as absorbed gas on the inner surface of the coal During mining operations the mine gas is released which is a hazard due to its flammability When it mixes with the air it could cause a fire and explosive risk How are Gas Sensors used in Mining...

Design of Coal Mine Intelligent Monitoring System based on
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Design of Coal Mine Intelligent Monitoring System based on ZigBee Wireless Sensor Network Gao Dan1 a Li Weiwei1 b and Dai Kun1 c 1Department of Automation Engineering Tangshan Polytechnic College Tangshan 063200 China a495403374 qq b491321914 qq c395745402 qq Keywords ZigBee Intelligent control Monitor Abstract This paper introduces the overall architecture of coal...

A Guidance Sensor For Continuous Mine Haulage
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The approach to remedy this problem uses a guidance system on the haulage equipment so that it follows the machine that extracts coal This in essence involves sensor-based docking of the machin Sensors that can survive the hostile mine environment of dust methane gas and water play the key role Computer analysis of the mining machine...

Proximity Detection for Coal Mines
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Proximity Detection for Underground Coal Mines Keywords Proximity Detection and Collision Avoidance MSHA collision avoidance danger detection emergency stopping proximity sensors mine safety coal mining coal mine safety heavy machinery in mining mining safety proximity detection HazardAvert strata Created Date 9/19/2017 3 56 18 PM...

Mining and Quarrying Industry
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Our product range includes the HS-100I and HS-150I industrial accelerometers certified to the latest ATEX IECEx standards Group I Mining while for use with conveyors and other equipment running at under 60Hz we offer high sensitivity HS-100 sensors with 500 mV/g outputs this improves the signal to noise ratio Our 4-20mA vibration sensors and 0-25 mm/s RMS velocity sensors HS-420...

New generation of gas sensors for underground coal mining
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These sensors can also be used for long distance and distributed sensing of various gases both of which are important for underground gas monitoring The aim of this paper is to review the present underground mining gas monitoring systems and review the new generation of fibre optic-based sensing systems for use in underground coalmin...

Industrial pressure sensors
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Bestech Australia has released the AST4000 industrial grade pressure sensors for a range of applications With a one-piece stainless steel sensing element the sensor is used in rugged...

APPLICATION OF SENSORS FOR DETECTION OF UNDERGROUND COAL
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sensors and are feasible to use in underground coal min 241 Capacitive humidity sensor It consists of a hygroscopic dielectric material sandwiched between a pair of electrodes forming...

Zigbee based intelligent helemet for coal miners ppt
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Oct 10 2012 0183 32 Zigbee based intelligent helemet for coal miners ppt 1 A MAJOR PROJECT SEMINAR ONZIG BEE BASED INTELLIGENT HELMET FOR COAL MINERS Under The Guidance Of Y Sowmya Indu Asst Prof by BSURENDR 08QK1A0451 JPRAVEEN 08QK1A0427 KVENKATESH 08QK1A0456 MD FAROOQ 08QK1A0401...

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