Notes

Just how to solve the slagging of biomass central heating boilers?<br>
fish food pellet machine takes on biomass wastes or biomass pellets as fuel. In https://richimachine.seesaa.net/article/499129808.html burning of pellet gas, the volatiles become gas and have made complex response with smoke and also dust, coagulate and stick to the heating pipeline surface area. The slagging and ash down payment will influence the procedure and also security of boilers. In this post, I will examine the features of slagging, discover the factor of biomass central heating boiler slagging, and advanced reliable options.



Reasons for biomass boiler slagging

The slagging of biomass boilers refers to the ash generated in the burning of biomass gas. At high temperature, the ash remains in liquid or soft solid condition. Once they touch the heating surface, they would stick to it as well as form right into slag.



Biomass fuel structure and also ecological tool

The ash melting point is impacted by the make-up of biomass gas and environmental tool. If there are incompletely ignited fuels, they will make the environmental medium weakly reductive, and also lower the melting point. Under this problem, the ash are easy to attach to the fireplace and the wall surface of superheater. If the biomass gas has high moisture material, the heavy steam will soften potassium, which is the major web content in ash.



Impurities in biomass fuels create slagging

A huge part of biomass gas are made by more than 1 raw material. Sometimes they are mixed with dirt and sand. These contaminations changed the composition as well as melting temperature of biomass gas. With high ash and also alkali metal web content, these impure biomass fuels are less complicated to create slagging.



Insufficient air in central heating boilers for burning

Occasionally the biomass gas are dispersed erratically in boilers. They come to be heat burning mass and also melt with insufficient oxygen, which will create slagging. Inadequate air flow quantity will certainly raise the slagging degree. Consequently, to avoid biomass boiler slagging, you should control the percentage of gas and air.



You can readjust the air percentage by getting rid of some fuels. Besides, slagging might arise from central heating boiler issues. The feeding tool can trigger fuel piling and exacerbate slagging.



Uneven warm distribution of central heating boiler surface

The central heating boiler inside temperature level as well as warmth distribution have great effect on the slagging. As experience programs, slagging usually appears in flue as well as superheater surface. When the liquid or soft solid ash approach the heating surface area, it do not have sufficient time to cool off, so it is very easy to comply with the heating surface as well as gather. As investigates confirmed, the higher the boiler temperature, the even more slagging. Slagging impact the warmth exchange of boiler surface, block the flue, raise the smoke circulation speed, and also intensify the home heating surface wear.



How to fix the slagging of biomass central heating boilers?

Now we understand the slagging of biomass central heating boilers emerges from the biomass fuel properties as well as boiler design. To reduce the slagging, we need to pick top quality biomass pellets as well as high-efficiency central heating boilers, and manage the feeding speed. However you can't get rid of slagging completely. You need to clean the biomass boilers frequently.



Heavy steam soot blower

Generally, they use heavy steam residue blower to get rid of slagging in central heating boilers, but the cleaning impact is hardly sufficient. They need to clean the boiler with high-pressure water.



The potassium in biomass gas create silicon in burning as well as lower the softening temperature to 800 ℃, which remains in the variety of superheater. So the soften ash is very easy to attach to the warm wall surface as well as hard to be eliminated by vapor soot blower



Besides, heavy steam soot blowers has following negative aspects. The central heating boilers cleaned up by steam soot blower have to wait for 15 days for next usage. The purging location is restricted, with some dead angles. As the soot blowing period is long, there are way too much ash deposited in the home heating surface. They might sintered as well as harden, and also raise the cleansing problems.



defocusing prevention and pulse gas ash blower.

Nowadays, lots of biomass boilers take on defocusing prevention and pulse gas ash blower to fix biomass central heating boiler slagging and also accomplished remarkable impact.



Defocusing prevention is a fuel additive with high melting point as well as burning improver. When it is sprayed right into the fireplace, it will certainly combine with fly ash as well as stay with the half-melt ash. It will certainly change the melting point of ash as well as destroy slagging. It can also create metal film on the pipe surface to avoid acid humidity rust.




Pulse gas ash blower can remove the ash deposit on the boiler home heating surface by removing, acoustic exhaustion, thermal cleansing and regional vibration. Finally, the gas flow eliminate the ash.



Select the best means to resolve slagging issue

To use high quality biomass fuels in boilers can decrease slagging, however the expense will increase. If you need to use low quality biomass gas, which has high moisture as well as pollutants material, slagging is unpreventable. To ensure the secure running of boilers, you can incorporate defocusing inhibitor as well as pulse gas ash blower to effectively fix the slagging problem.

Read More: https://richimachine.seesaa.net/article/499129808.html