How-to-solve-the-slagging-of-biomass-boilers-s

How to fix the slagging of biomass boilers?

Biomass boilers embraces biomass wastes or biomass pellets as gas. In the burning of pellet gas, the volatiles develop into gas and also have actually complicated response with smoke as well as dust, coagulate and also stick to the heating pipe surface area. The slagging as well as ash down payment will certainly impact the operation and also safety of boilers. In this post, I will assess the features of slagging, discover the reason of biomass boiler slagging, and advanced reliable solutions.

Reasons for biomass central heating boiler slagging

The slagging of biomass boilers describes the ash produced in the burning of biomass gas. At heat, the ash is in fluid or soft solid standing. Once they touch the heating surface area, they would follow it and also form into slag.

richi machinery and also environmental medium

The ash melting point is impacted by the make-up of biomass gas as well as environmental medium. If there are incompletely ignited gas, they will make the environmental medium weakly reductive, as well as reduced the melting point. Under this problem, the ash are simple to affix to the fireplace and the wall of superheater. If the biomass fuel has high moisture web content, the vapor will certainly soften potassium, which is the major material in ash.

Pollutants in biomass fuels trigger slagging

A huge part of biomass fuels are made by greater than 1 basic material. In some cases they are mixed with dust as well as sand. These pollutants transformed the make-up as well as melting temperature level of biomass fuels. With high ash as well as alkali metal web content, these unclean biomass gas are easier to cause slagging.

Inadequate air in central heating boilers for burning

In some cases the biomass gas are dispersed erratically in central heating boilers. They come to be high temperature burning mass as well as melt with insufficient oxygen, which will certainly trigger slagging. Insufficient ventilation amount will certainly raise the slagging level. As a result, to stay clear of biomass boiler slagging, you ought to control the percentage of fuel as well as air.

You can readjust the air percentage by getting rid of some fuels. Besides, slagging might develop from wood stove pellet making machine . The feeding device can create fuel piling and intensify slagging.



Unequal warmth circulation of boiler surface

The boiler inside temperature and warm distribution have wonderful influence on the slagging. As experience programs, slagging generally appears in flue and also superheater surface area. When the liquid or soft solid ash move toward the heating surface, it don't have sufficient time to cool off, so it is simple to follow the heating surface as well as accumulate. As researches proved, the higher the central heating boiler temperature level, the more slagging. Slagging impact the warmth exchange of boiler surface, block the flue, boost the smoke circulation speed, and worsen the home heating surface area wear.

How to resolve the slagging of biomass central heating boilers?

Currently we understand the slagging of biomass central heating boilers develops from the biomass gas residential properties and boiler design. To reduce the slagging, we must choose high quality biomass pellets and also high-efficiency boilers, and control the feeding rate. However you can't remove slagging entirely. You need to clean the biomass central heating boilers regularly.

Steam residue blower

Generally, they utilize steam soot blower to get rid of slagging in central heating boilers, yet the cleaning impact is hardly acceptable. They need to wash the boiler with high-pressure water.

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

Besides, steam residue blowers has following downsides. The central heating boilers cleansed by vapor residue blower have to wait on 15 days for following use. The purging area is limited, with some dead angles. As the residue blowing interval is long, there are excessive ash deposited in the heating surface area. They might sintered and harden, and also increase the cleansing difficulties.

defocusing inhibitor and also pulse gas ash blower.

Nowadays, lots of biomass boilers embrace defocusing inhibitor and also pulse gas ash blower to fix biomass boiler slagging and also achieved exceptional impact.





Defocusing inhibitor is a gas additive with high melting point and combustion improver. When it is sprayed right into the hearth, it will mix with fly ash and adhere to the half-melt ash. It will certainly change the melting point of ash and destroy slagging. It can also create steel movie on the pipeline surface area to avoid acid humidity rust.

Pulse gas ash blower can clear the ash deposit on the boiler home heating surface by removing, acoustic fatigue, thermal cleansing as well as local vibration. At last, the gas circulation remove the ash.

Choose the most effective method to solve slagging problem

To use top quality biomass fuels in central heating boilers can decrease slagging, but the expense will boost. If you need to utilize poor quality biomass gas, which has high dampness as well as contaminations web content, slagging is unpreventable. To guarantee the stable operating of central heating boilers, you can integrate defocusing prevention as well as pulse gas ash blower to effectively fix the slagging trouble.