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How to solve the slagging of biomass boilers?<br>
Biomass central heating boilers takes on biomass wastes or biomass pellets as fuel. In the burning of pellet gas, the volatiles turn into gas and have complicated reaction with smoke and dust, coagulate and adhere to the home heating pipeline surface area. The slagging and ash deposit will influence the procedure and security of boilers. In this post, I will certainly examine the functions of slagging, discover the reason of biomass boiler slagging, as well as advanced reliable solutions.



Factors for biomass boiler slagging

The slagging of biomass boilers describes the ash generated in the burning of biomass fuel. At high temperature, the ash is in liquid or soft solid standing. Once they touch the home heating surface, they would follow it and also develop right into slag.



Biomass gas composition as well as ecological medium

The ash melting point is impacted by the structure of biomass gas and also environmental tool. If there are incompletely combusted gas, they will make the environmental medium weakly reductive, and reduced the melting point. Under this condition, the ash are very easy to affix to the hearth and the wall surface of superheater. If the biomass gas has high dampness material, the steam will certainly soften potassium, which is the major web content in ash.



Impurities in biomass gas cause slagging

A huge part of biomass gas are made by greater than 1 raw material. Often they are blended with dust as well as sand. These impurities altered the composition as well as melting temperature level of biomass fuels. With high ash and also alkali metal material, these impure biomass gas are less complicated to create slagging.



Not enough air in boilers for burning

In some cases the biomass fuels are distributed unevenly in central heating boilers. They end up being high temperature burning mass as well as melt with insufficient oxygen, which will certainly cause slagging. Inadequate air flow amount will certainly raise the slagging degree. For that reason, to avoid biomass central heating boiler slagging, you need to manage the percentage of fuel and air.



You can adjust the air proportion by getting rid of some fuels. Besides, slagging might arise from boiler problems. The feeding gadget can create fuel piling and aggravate slagging.



Unequal warm circulation of central heating boiler surface area

The central heating boiler inside temperature level as well as warmth distribution have great effect on the slagging. As experience programs, slagging generally shows up in flue and superheater surface. When the liquid or soft strong ash approach the heating surface, it don't have adequate time to cool down, so it is very easy to stick to the home heating surface area as well as collect. As https://pelletrichi.hatenablog.com/entry/2023/04/24/151752 confirmed, the higher the boiler temperature level, the even more slagging. Slagging impact the heat exchange of boiler surface, obstruct the flue, raise the smoke flow rate, and also worsen the heating surface wear.



Just how to fix the slagging of biomass boilers?

Now we know the slagging of biomass central heating boilers emerges from the biomass gas homes and boiler design. To reduce the slagging, we ought to select top quality biomass pellets as well as high-efficiency boilers, and also manage the feeding rate. However you can not eradicate slagging completely. You require to clean up the biomass central heating boilers frequently.



Vapor soot blower

Generally, they make use of steam residue blower to remove slagging in central heating boilers, but the cleansing impact is barely satisfying. They have to wash the central heating boiler with high-pressure water.



The potassium in biomass gas create silicon in burning as well as reduced the softening temperature level to 800 ℃, which remains in the variety of superheater. So the soften ash is easy to connect to the heat wall surface and also tough to be removed by heavy steam residue blower




Besides, vapor soot blowers has adhering to drawbacks. The boilers cleaned by steam soot blower need to await 15 days for following usage. The removing location is limited, with some dead angles. As the residue blowing interval is long, there are too much ash transferred in the home heating surface area. They may sintered and also harden, and also increase the cleaning difficulties.



defocusing prevention and pulse gas ash blower.

Nowadays, numerous biomass central heating boilers adopt defocusing prevention and also pulse gas ash blower to address biomass boiler slagging and also accomplished amazing result.



Defocusing prevention is a gas additive with high melting point as well as burning improver. When it is splashed right into the hearth, it will mix with fly ash and stick to the half-melt ash. It will change the melting point of ash and ruin slagging. It can likewise form metal film on the pipeline surface to stop acid dew point rust.



Pulse gas ash blower can remove the ash deposit on the central heating boiler heating surface area by removing, acoustic exhaustion, thermal cleansing and regional vibration. At last, the gas circulation eliminate the ash.



Select the best method to resolve slagging problem

To make use of top quality biomass gas in boilers can reduce slagging, however the cost will certainly enhance. If you need to utilize poor quality biomass gas, which has high wetness and contaminations material, slagging is unavoidable. To make sure https://richicarmenhuang.home.blog/2023/04/26/whats-the-pet-feed-pellet-equipment-outcome/ running of boilers, you can integrate defocusing prevention as well as pulse gas ash blower to properly address the slagging trouble.

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