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How to fix the slagging of biomass central heating boilers?<br>
Biomass central heating boilers adopts biomass wastes or biomass pellets as fuel. In the burning of pellet gas, the volatiles become gas and have complicated response with smoke and also dust, coagulate and comply with the heating pipeline surface. The slagging as well as ash down payment will impact the procedure as well as safety of boilers. In this post, I will certainly assess the features of slagging, figure out the factor of biomass central heating boiler slagging, as well as put forward reliable remedies.



Reasons for biomass central heating boiler slagging

The slagging of biomass boilers describes the ash generated in the burning of biomass fuel. At heat, the ash remains in fluid or soft strong standing. Once they touch the home heating surface, they would certainly abide by it and create right into slag.



Biomass fuel composition and also environmental tool

The ash melting point is impacted by the composition of biomass fuel and also ecological tool. If there are incompletely combusted gas, they will make the ecological tool weakly reductive, and reduced the melting point. Under this problem, the ash are easy to connect to the fireplace as well as the wall surface of superheater. If the biomass gas has high dampness content, the heavy steam will certainly soften potassium, which is the significant web content in ash.



Impurities in biomass gas trigger slagging


A huge part of biomass gas are made by more than 1 basic material. Occasionally they are mixed with dust as well as sand. These pollutants altered the structure and melting temperature of biomass gas. With high ash as well as alkali metal web content, these impure biomass gas are less complicated to trigger slagging.



Inadequate air in central heating boilers for burning

Occasionally the biomass gas are distributed erratically in boilers. wood pellet making machine price end up being heat combustion mass and shed with inadequate oxygen, which will certainly create slagging. Not enough air flow quantity will increase the slagging degree. Therefore, to avoid biomass boiler slagging, you must manage the proportion of gas and air.



You can adjust the air proportion by getting rid of some gas. Besides, slagging might emerge from boiler troubles. The feeding tool can cause fuel stacking and exacerbate slagging.



Unequal warm circulation of boiler surface area

The central heating boiler inside temperature and also warm circulation have terrific effect on the slagging. As experience shows, slagging generally shows up in flue as well as superheater surface area. When the fluid or soft strong ash move toward the home heating surface, it don't have enough time to cool, so it is easy to stick to the home heating surface as well as gather. As investigates shown, the higher the central heating boiler temperature level, the even more slagging. Slagging influence the warm exchange of boiler surface, obstruct the flue, enhance the smoke flow rate, and also exacerbate the heating surface area wear.



How to fix the slagging of biomass central heating boilers?

Now we understand the slagging of biomass central heating boilers arises from the biomass gas properties and also central heating boiler design. To lower the slagging, we must select high quality biomass pellets and also high-efficiency boilers, and manage the feeding speed. But you can not eliminate slagging entirely. You require to clean the biomass boilers frequently.



Vapor soot blower

Generally, they use heavy steam soot blower to get rid of slagging in boilers, but the cleansing impact is hardly sufficient. They have to wash the boiler with high-pressure water.



The potassium in biomass gas generate silicon in burning and lower the softening temperature to 800 ℃, which is in the range of superheater. So the soften ash is very easy to affix to the warm wall surface and hard to be gotten rid of by steam residue blower



Besides, steam soot blowers has complying with downsides. chicken pellet making machine cleansed by vapor residue blower need to await 15 days for next usage. The purging area is limited, with some dead angles. As the soot blowing period is long, there are excessive ash transferred in the heating surface. They might sintered and set, and raise the cleaning problems.



defocusing inhibitor and pulse gas ash blower.

Nowadays, numerous biomass boilers adopt defocusing inhibitor and also pulse gas ash blower to fix biomass boiler slagging as well as accomplished remarkable impact.



Defocusing inhibitor is a gas additive with high melting point and combustion improver. When it is splashed right into the fireplace, it will combine with fly ash and also adhere to the half-melt ash. It will certainly change the melting point of ash and damage slagging. It can likewise create metal film on the pipeline surface area to prevent acid dew point rust.



Pulse gas ash blower can get rid of the ash deposit on the central heating boiler heating surface area by removing, acoustic tiredness, thermal cleaning and also regional vibration. Finally, the gas flow remove the ash.




Select the most effective means to address slagging problem

To use top quality biomass fuels in central heating boilers can lower slagging, but the expense will certainly raise. If you have to utilize poor quality biomass fuels, which has high moisture and also impurities content, slagging is inescapable. To make sure the steady operating of central heating boilers, you can integrate defocusing prevention and also pulse gas ash blower to properly fix the slagging issue.


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