​​Applications For Ecrystal Coal Ash Sensors In Coal-Fired Power Plants
 

Ecrystal's Coal Ash Sensors can be used for either point level monitoring or continuous level monitoring at many locations throughout a coal-fired power plant. This is due to the fact that Ecrystal Coal Ash Sensors offer many wonderful features and benefits such as easy installation, high sensitivity and accuracy of measurement, its unique design that withstands harsh environments and most importantly, its installation position which is entirely outside of the hopper preventing ash contact.
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We have a proven track record of success and are often the first choice for the following applications:
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Examples of Point Level Application
Fly Ash High-Level/Low-Level (LS-7 & LS-8)
Electrostatic precipitators (ESPs) or filter bags are used to remove particulate matter from stack gases exhausted from burning coal. This ash is collected in hoppers under the ESP or filter.  The ash must be removed before it causes the ESP to short out or damage to the filter bags.  The Ecrystal CAS is mounted at a point below the ESP or filter bag to indicate when the ash needs to be removed.  Another Ecrystal CAS is often used to indicate a low-ash condition when emptying.  Ecrystal products are very suitable for this abrasive and hot environment in which temperatures can reach 1,500 degrees Fahrenheit.
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Examples of Continuous Level Application
​Fly-Ash Silos (LT-2)
Fly ash storage silos are used to store the fly ash removed by the  ESP system.  These silos are very large and hold hundreds of thousands of pounds of ash.  Because the ash is very dusty and the conveying system is pneumatic, a large amount of airborne dust is created inside the silo environment.  These dust clouds are so severe that they can “blind” Radar and Ultrasonic sensors. Ecrystal CAS-A has proven to be a reliable and accurate level measuring device for this application.  It provides high sensitivity in measuring output and durability in product design.
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Coal Storage/Blending Continuous Level (LT-1)
The storage and blending of different types of coals allow the power generating station to feed its boilers with a blend of coal that will produce a consistent BTU output.  Coal storage and blending silos have their inventory levels continuously monitored to ensure an adequate supply level and good process control.  The continuous level transmitters chosen for these applications must be mechanically robust and very reliable; this is another application where Ecrystal sensors can be depended upon.