Coal quality importance in coal fired hot water boiler

20 ton coal-fired hot water boiler as a relatively wide used boiler form, can be used for winter heating, power generation,provide hot water in processing. The coal quality is very important, which is related to the normal operation of the fuel and the combustion efficiency of the boiler. The following is ZG Boiler analysis of coal quality importance in coal-fired boiler .

According to well know boiler manufacturer ZG, when the coal quality in boiler furnace has big difference from the coal boiler designed and verification coal quality, it may bring the following adverse impact on the boiler flame-out and auxiliary equipment:

1.when the 20 ton coal fired boiler coal quality is poor, boiler ignition and operation of conditioning will be tough, hard to extinguish, easy to flame-out, seriously affects the boiler outlet temperature standards. Easy coking in furnace, convection tubes, economizer, air preheater and other heating surface will be badly worn and easy to fouling, boiler air resistance increases, finally affects the thermal efficiency of the boiler.

2, when the sulfur content of coal quality is large, easy to cause water wall high temperature corrosion, the boiler backpass, economizer, air preheater, etc. produce low temperature corrosion, causing boiler tube explosion and affecting safe operation of the coal fired hot water boiler.

Therefore, when choosing 20 ton coal-fired hot water boiler, the coal quality needs to pay attention and  choose according to the actual design and local fuel supply. More information about boilers can also consult ZG Boiler engineer, hot line 86-371-86062323.
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