Pulverized coal-burner

Presentation by
Primary Information Services
www.primaryinfo.com
mailto:[email protected]

1. Presentation by
Primary Information Services
www.primaryinfo.com
mailto:[email protected]

2. Coal Burner :
https://www.assignmentpoint.com/science/chemistry/coal-burner.html
•A coal burner is mainly composed of a pulverized coal machine, a host of combustion machines (including a combustion
chamber, automatic back and forth motion system, automatic rotation system, the combustion air supply system) control
system, an ignition system, the crater, and others.
•In the worksite, a coal burner works with the coal pulverizerand coal hopper usually. The coal in the hopper is
conveyed to the coal pulverizerby a screw conveyor. The coal pulverizerwill crush the coal into pulverized coal.
Water is heated, turns into steam, and spins a steamturbine, which drives an electrical generator. In the coal burner,
the pulverized coal mixes with air (High-speed airflow is generated by the draft fan on the coal burner), and is ignited
by the oil-burning igniter. After it passes through the turbine (one to three-stage), the steam is condensed in a
condenserand recycled to where it was heated; this is known as aRankinecycle.
•Ignition:Therearemainlytwowaystoignitethecoalburner.Themanualwayandautomaticway,nomatterwhich
wayitadopts,thecoalburneroftenneedsfuel(oil,gas,etc.)asthecombustionmedium.Itispredominantly
adoptedinlargecoal-firedutilityboilers.Thefinerthegrindingofcoal,themoreefficientitscombustion.The
differenceisthatthehigh-energyignitiondeviceswhichgeneratesparksreplacepeople’shands.Theheartofa
pulverizedcoal-firedboileristhepulverizer,alsoknownasthemill
•Use:Pulverizedcoalcanbeusedasareducingagentbyinjectingitthroughthetuyeres.Pulverizedcoalburners
haveawiderangeofusesinindustrialproductionanddailylife,suchasprovidingheatforboilers,hotmixasphalt
plant,cementkiln,metalfurnace,annealing,quenchingfurnace,precisioncastingshellburningfurnace,melting
furnace,forgingfurnaceandotherheatingfurnaceorkiln.Dependingonspeedpulverizersareclassifiedaslow-
speed,medium-speed,andhigh-speedmills.Pulverizedcoalburnersmaybelocatedonthefrontoropposedwalls
orinthecornersofthefurnace.

4. Sinosun

5. Requirements for coal
Mark of coal: bituminous coal;
Gross calorific value: ≥5000kcal/kg (≥ 20000kJ/kg);
Net calorific value: ≥4200kcal/kg;
Volatile matter: ≥25%; Ash Content: ≤10%; Total moisture: ≤35%;
Inherent moisture: ≤14%; Total sulphur: ≤1%;
Particle size: ≤20mm.
Note: These indexes are the lowest requirements for the coal, the better coal will be better at practice.

14. Database offer:
Pulverized Coal Burners
Technology Sources, Design Development Project
Information
Primary Information Services
http://primaryinfo.com/projects/pulverized-coal-burners.htm

15. Primary Information Services
We Find the Primary Information
that is Reliable Categorize it, index it
Adsenseand make it Knowledgeable
to every one Who is willing to
Pay for it
Questions?
mailto:[email protected]