Coal Fire Detection - Infrared Coal Fire Monitor




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Coal Fire Detection

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IR Coal Fire Monitor

Fire Detection in the Bunker/Hopper and Mill Reject Box

Non-contact Infrared Thermometry
While carbon monoxide (CO) detection offers an earlier warning, infrared thermometry can provide a low cost alterative in the bunker/hopper and the mill reject box.
The thermometer can be mounted to view the coal inside the hopper/bunker and give a rapid indication of temperature rise - a warning that fire is imminent.
Where thermocouples are preferred in the reject box, the thermometer is a real alternative, with faster response and greater longevity. A great number of fires go dangerously undetected in this part of the mill - the simple addition of infrared thermometers would provide added plant protection. They can also provide primary information to the installed fire suppression systems.

	Features and Benefits
	Easy hotspot detection using non-contact temperature measurement
	Rapid alarm to initiate preventive action to avoid fire
	Straightforward installation and operation
	Minimal maintenance
	Proven solution based upon years of experience

Simple to install, low on maintenance
Infrared thermometers are simple to install and maintain, and are ideally suited to the harsh conditions on the mill. A range of accessories including cooling and purging systems maintain a clear sight path, and ensure continuous high accuracy, repeatable, long-term, drift-free performance.

Undetected fires are a major cause of mill explosions. A report by EPRI (in the USA), claimed there was at least one pulverizer explosion every day in the USA. It is also known that fires are on the increase. In order to deal with the increasing threat of fires and explosions, fire detection early warning systems are proving vital to plant integrity.

What is behind the increase in fire risk
The move to low sulphur coal (notably with PRB in the USA), plus the multi-fuel burning in some plants has greatly increased the fire risk. These ‘new’ fuels have a higher propensity to ignite in certain conditions.

Detect hotspots using non-contact infrared thermometry.

	Quick Links
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