What Causes Slagging in Coal Fired Boilers?
Fotolia.com”> jQuery(document).ready(function(){ jQuery(‘#jsArticleStep1 span.image a:first’).attr(‘href’,’http://i.ehow.co.uk/images/a06/j8/f1/causes-slagging-coal-fired-boilers_-1.1-800X800.jpg’); }); Coal-fired boilers are used to generate electricity. The term “slag” was derived from the German word “slagge” and dates to at least 1552. Slag is molten rock and minerals, created when coal is burned at high temperatures, and it is similar to lava and volcanic ash. Slagging has been an industry problem as far back as 1916 when the Babcock and Wilcox Company (a leader in boiler manufacturing and maintenance) mentioned it in their comprehensive manual on boiler operations. Proper air circulation is vital to steam generation. Too much slag can literally choke a boiler because air is prevented from moving around inside. Fuel The most common cause of slag in a boiler is inferior fuel sources. Low-quality coal, such as lignite, contains a higher concentration of water and minerals including
Coal-fired boilers are used to generate electricity. Boilers, ladders and pipes at a power plant, image by Andrei Merkulov from Fotolia.com The term “slag” was derived from the German word “slagge” and dates to at least 1552. Slag is molten rock and minerals, created when coal is burned at high temperatures, and it is similar to lava and volcanic ash. Slagging has been an industry problem as far back as 1916 when the Babcock and Wilcox Company (a leader in boiler manufacturing and maintenance) mentioned it in their comprehensive manual on boiler operations. Proper air circulation is vital to steam generation. Too much slag can literally choke a boiler because air is prevented from moving around inside. Fuel The most common cause of slag in a boiler is inferior fuel sources. Low-quality coal, such as lignite, contains a higher concentration of water and minerals including pyrite, iron, calcium, sodium and potassium. When heated to the extreme temperatures needed for boiler operations, t
