Boilers & Burners

Pulverizers 101: Part II

COAL POWER magazine :: Operations & Maintenance >> 
Pulverizers prepare the raw fuel by grinding it to a desired fineness and mixing it with the just the right amount of air before sending the mixture to boiler burners for combustion. In Part I of this three-part report, we examined the essentials of pulverizer design and performance.  In the second part, we discuss the importance of fuel fineness. In the final article, we will discuss the importance of air and fuel measurement....

Enhanced Capture of Mercury Using Unique Baghouse Filter Media

COAL POWER magazine :: Operations & Maintenance >> 
Several states have already instituted mercury emission limits in expectation of tightening mercury emission rules that will require reductions of up to 91%. Coal-fired plants searching for an economical way to meet the new limits may need to look no further than replacing their baghouse filter elements....

Improved Coal Fineness Improves Performance, Reduces Emissions

COAL POWER magazine :: Operations & Maintenance >> 
Utilizing engineering ingenuity and today’s developing computational fluid dynamics tools, a new classifier design is now available that significantly improves fineness from pulverizers without the heavy costs associated with dynamic classification or any downsides on pulverizer capacities, maintenance, and parasitic power.  Instead, operational flexibility and improved emission control options are enhanced....

Applying CFD to Optimize Furnaces Cofiring Biomass, and the Impact of Cofiring on SCR

COAL POWER magazine :: Operations & Maintenance >> 
The international policy framework regulating the emissions of greenhouse gases from industrial and utility boilers is in flux. Meanwhile, most boiler owners are evaluating potential strategies for when, not if, more stringent emissions reduction regulations are put in place. One of the most attractive compliance options is the cofiring of biomass in existing coal-fired boilers....

Natural Gas Conversions of Existing Coal-Fired Boilers

COAL POWER magazine :: Operations & Maintenance >> 
Why should utilities consider converting existing coal-fired plants to burn gas? We explore the rationale for fuel switching, some of the options available for the conversion of coal-fired units, technical considerations related to conversion, and some of the financial considerations that will impact the final decision....

Pulverizers 101: Part I

COAL POWER magazine :: Operations & Maintenance >> 
Pulverizers prepare raw fuel by grinding it to a desired fineness and mixing it with the just the right amount of air before sending the mixture to boiler burners for combustion. In Part I of three parts, we'll examine the essentials of pulverizer capacity, what should be done after a coal pulverizer fire or other incident, and how to tune up pulverizer performance. In future articles we'll discuss measuring pulverizer performance and performance optimization....

Example of a burner system.

At the Milch-Union Hocheifel eG in Pronsfeld they are proud of over 40 years experience in milk processing. More than 700 employees refine more than one billion kilograms of raw milk annually into delicious milk products.

 

With more than 2700 farms of the Hocheifel region and the nearby regions of Belgium and Luxemburg and a sympathic registered trade mark, well-known in Germany and wide parts of Europe, MUH stands for highest quality in accordance with producers and customers.

 

To guarantee the high standards of quality for the future, a twodigit millions amount is annually invested in the Pronsfeld facility. In 2010 for example the steam generation centre was extended by a further boiler.

The experienced plant constructor HSK Rohrleitungsbau was the client for dreizler® ordering 2 x marathon®M10001.2oxygenplus. These two high efficient burners heat a new double fire tube boiler of LOOS with a capacity of 28 to and 20 bar pressure.

 

NEW: Burner series marathon® M/MC10003.6 up to 10003.8

With the burner types marathon® M/MC10003.6 up to 10003.8 dreizler® presents the consequent development of the CE type tested DUObloc burner series for gaseous and liquid fuels. With combustion capacities from 25 up to max. 44 MW per burner these powerhouses can optimally be applied to water tube boilers, thermal oil heaters, ignition and auxiliary burner application in power stations and as process burners of all kinds.

Condenser Performance Improvement Through Innovative Cleaning and Leak Detection Technologies

COAL POWER magazine :: Operations & Maintenance >> 
One of the largest returns on investment a plant can achieve is the improved condenser performance that results from an effective condenser tube cleaning. Perhaps it is time to reevaluate your choice of cleaning technologies, establish an optimal cleaning schedule, and add routine air and water in-leakage surveys to your plant's maintenance schedule....

Power 101: Improving the Performance of Boiler Auxiliaries, Part III

COAL POWER magazine :: Operations & Maintenance >> 
Efficient boiler operation requires boiler auxiliary equipment to operate in harmony. In this third and last installment of our Power 101 series, we examine ways to decrease the auxiliary power requirements of boiler auxiliaries....

Respect Your Refractory

COAL POWER magazine :: Operations & Maintenance >> 
Because refractory is out of sight inside the gas flow path of a steam generator and its auxiliaries, it's also often out of mind. That is, until the refractory fails and causes a forced outage....

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