What are the requirements for coal fired by coal-fired steam boilers

What is the lower cost of biomass boilers and coal-fired boilers

Coal-fired steam boiler is China’s main production capacity equipment, China is a big country of coal output of coal quality components are uneven, so what is the coal fired by coal-fired steam boiler specific requirements?

The main basis of coal quality

1. Coal ash: coal ash can affect the combustion condition of steam boiler and the service life of equipment;

2. Coal moisture: as the coal moisture increases, the calorific value decreases, and the smoke exhaust temperature of the boiler increases, which affects the combustion efficiency of the coal-fired steam boiler;

3. Calorific value of coal: the calorific value of coal is lower than the boiler index, the temperature in the furnace decreases, affecting the ignition point and complete combustion of coal powder, the thermal efficiency of coal-fired steam boiler decreases, and the calorific value of coal is higher than the designed level.

According to the above three points, coal can be divided into these categories.
Lignite/secondary bituminous coal/bituminous coal/anthracite/hard coal/long-flame coal/non-viscous coal/weak viscous coal/gas coal/fat coal/coking coal/lean lean coal/lean lean coal/weathered coal/natural coke /

So does the coal-fired steam boiler have the requirement to coal? Can burn what kind of coal is mainly based on the boiler manufacturer’s design, the user needs to burn what coal, and then boiler manufacturers to design. In general, coal-fired steam boilers can burn as long as they can ignite burning coal

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