The storage of coal in large piles (stockyards) carries with it the risk of spontaneous combustion. Types of more volatile coal are being mined and stored more frequently, increasing the likelihood of hotspots forming, which undetected could lead to the onset of fire. An early warning system that continuously monitors (not periodic spot measurement) the entire storage area, provides the best possible way of detecting these hotspots.The Coal Pile Fire Monitorprovides continuous, fully automated operation – the result being high resolution, high accuracy thermal images combined with digital data transmission. In the control room, the entire scanning view (displayed on monitors) is shown as a thermal picture, the clearly identified hotspots activating the simple pre-programmed alarms to ensure immediate action is taken to prevent the onset of fire.
|Key Features||Key Benefits|
The Coal Pile Fire Monitor provides continuous, fully automated operation – the result being high resolution, high accuracy thermal images combined with digital data transmission. In the control room, the entire scanning view (displayed on monitors) is shown as a thermal picture, the clearly identified hotspots activating the simple pre-programmed alarms to ensure immediate action is taken to prevent the onset of fire.
The Coal Pile Fire Monitor has been developed using our extensive experience of providing monitoring solutions to industry.
The plant operator has a complete thermal view of the entire storage area using a series of gantry-mounted high resolution thermal imagers, which are installed inside protective enclosures to ensure continuous operation.
- A three point measurement system to cover the entire storage area
- The positions of the three pan and tilt themal imagers (red areas indicate alarm locations)
- Hotspot clearly visible in ‘Stored Alarm Image’
- Date, time and location data stored plus option to cancel alarm condition.
The Coal Pile Fire Monitor uses our FTi-E technology to provide fast response data directly into the plant control room (and on-site if required). It can directly replace portable solutions which provide only a periodic check, increasing monitoring availability and freeing up plant personnel to act on the data, rather than capture the data.
What information can be provided to the plant operator
- Continuousthermal image acquisition – for real-time process surveillance.
- Thermal data to trigger alarm conditions – early hotspot detection
- Comparative analysis – record the ideal thermal profi le, then continuously monitor to check on deviations in the process.
- Temperature measurement – capability for all types of measurement including min., max. and averages.
- Record and playback of moving objects – record thermal images of moving processes to pinpoint potential problems.
|Low Temperature (C):||-20||High Temperature (C):||120|
|Thermal Imager – FTI-800E|
|Measurement range:||-20 to 120 °C/-4 to 250 °F|
|Spectral response:||nominal 8 to 14µm|
|Frame rate:||7.5 frames per second|
|Image pixels:||320 x 240|
|Detector type:||Uncooled amorphous silicon focal plane array|
|Field of view (4 x 3 format):||16° x 12° and 32° x 24°|
|Focusing range:||16° x 12° : 1m / 39 in to infinity
32° x 24° : 0.5 m / 19 in to infinity
|System temperature measurement accuracy:||±1.5 °C / ±3 °F|
|System thermal resolution:
|< 0.08 °C / 0.15 °F|
|Ambient temperature range:||Suitable for outdoor operation in all ambient conditions|
|Sealing:||IP 65 / NEMA 4|
|Vibration:||0.5mm, 10 to 60 Hz; 3g, 60 to 300 Hz|
|CE Certification:||EN 61326: 1999 B|
|Dimensions:||258 x 305 x 330 mm / 10 x 12 x 13 in|
|Weight:||20 kg / 44 lb (with imager installed)|
|Pan & Tilt Unit|
|Tilt range:||+20° to -90° from horizontal|
|Ambient temperature range (operating):||-40 to 60 °C / -40 to 140 °F|
|Dimensions:||255 x 181 x 223 mm / 10 x 7 x 9 in|
|Weight:||6.5 kg / 14 lb|
|Sealing:||IP 67 / NEMA 4|
|Coal Pile Monitoring|