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How to address the slagging of biomass central heating boilers?<br>
Biomass central heating boilers embraces biomass wastes or biomass pellets as gas. In the burning of pellet gas, the volatiles turn into gas and also have actually complicated response with smoke as well as dust, coagulate and comply with the heating pipe surface. The slagging as well as ash down payment will affect the operation and also safety and security of boilers. In mini poultry feed making machine , I will certainly evaluate the attributes of slagging, discover the reason of biomass boiler slagging, as well as put forward effective remedies.



Reasons for biomass boiler slagging


The slagging of biomass boilers describes the ash generated in the burning of biomass fuel. At high temperature, the ash remains in liquid or soft strong condition. Once they touch the home heating surface, they would certainly stick to it and form into slag.



Biomass gas make-up and also environmental tool

The ash melting point is affected by the structure of biomass fuel and also ecological medium. If there are incompletely combusted gas, they will certainly make the ecological medium weakly reductive, and also lower the melting point. Under this problem, the ash are very easy to connect to the hearth as well as the wall of superheater. If the biomass gas has high wetness web content, the vapor will certainly soften potassium, which is the major web content in ash.



Contaminations in biomass fuels create slagging

A huge part of biomass fuels are made by greater than 1 resources. Occasionally they are blended with dirt and sand. These contaminations transformed the structure and melting temperature of biomass gas. With high ash as well as alkali metal material, these unclean biomass fuels are much easier to cause slagging.



Not enough air in boilers for burning

Sometimes the biomass gas are distributed unevenly in central heating boilers. They come to be heat burning mass and also melt with insufficient oxygen, which will certainly trigger slagging. Inadequate ventilation amount will increase the slagging degree. For that reason, to prevent biomass central heating boiler slagging, you must control the proportion of fuel as well as air.



You can adjust the air proportion by getting rid of some fuels. Besides, slagging may emerge from boiler issues. The feeding device can trigger gas piling and also aggravate slagging.



Uneven warm distribution of boiler surface

The central heating boiler inside temperature and also warm distribution have wonderful influence on the slagging. As experience programs, slagging typically appears in flue and also superheater surface area. When the liquid or soft solid ash approach the home heating surface, it don't have adequate time to cool, so it is easy to stick to the heating surface area and also collect. As erema pelletizer confirmed, the greater the boiler temperature level, the more slagging. Slagging impact the heat exchange of boiler surface area, block the flue, enhance the smoke flow rate, and intensify the heating surface wear.



How to address the slagging of biomass central heating boilers?

Now we understand the slagging of biomass boilers occurs from the biomass gas residential properties as well as boiler design. To minimize the slagging, we need to choose excellent quality biomass pellets and also high-efficiency boilers, as well as manage the feeding speed. However you can't remove slagging completely. You need to clean the biomass central heating boilers on a regular basis.



Heavy steam soot blower

Traditionally, they use heavy steam residue blower to remove slagging in boilers, however the cleansing result is hardly satisfactory. They have to wash the central heating boiler with high-pressure water.



The potassium in biomass fuel generate silicon in burning and reduced the softening temperature to 800 ℃, which is in the series of superheater. So the soften ash is very easy to connect to the warm wall and also difficult to be removed by heavy steam soot blower




Besides, steam residue blowers has adhering to drawbacks. The central heating boilers cleansed by steam soot blower need to await 15 days for following usage. The purging location is limited, with some dead angles. As the soot blowing period is long, there are way too much ash deposited in the heating surface area. They might sintered and also set, as well as increase the cleaning troubles.



defocusing inhibitor as well as pulse gas ash blower.

Nowadays, many biomass boilers take on defocusing inhibitor and pulse gas ash blower to resolve biomass central heating boiler slagging and also accomplished amazing effect.



Defocusing prevention is a gas additive with high melting point as well as combustion improver. When it is sprayed into the hearth, it will certainly blend with fly ash as well as adhere to the half-melt ash. It will alter the melting point of ash as well as ruin slagging. It can also form steel movie on the pipeline surface area to stop acid dew point corrosion.



Pulse gas ash blower can get rid of the ash deposit on the boiler heating surface by purging, acoustic fatigue, thermal cleaning as well as local resonance. At last, the gas circulation remove the ash.



Choose the best way to solve slagging problem

To utilize excellent quality biomass fuels in boilers can decrease slagging, however the expense will increase. If you need to make use of poor quality biomass fuels, which has high wetness and contaminations material, slagging is unpreventable. To guarantee the steady running of central heating boilers, you can incorporate defocusing inhibitor and also pulse gas ash blower to efficiently fix the slagging problem.


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