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How to address the slagging of biomass central heating boilers?<br>
Biomass boilers embraces biomass wastes or biomass pellets as gas. In the burning of pellet gas, the volatiles become gas and also have made complex reaction with smoke as well as dirt, coagulate as well as comply with the heating pipeline surface. The slagging and also ash deposit will certainly affect the operation as well as security of central heating boilers. In this short article, I will examine the attributes of slagging, discover the reason of biomass boiler slagging, and put forward effective options.



Reasons for biomass central heating boiler slagging

The slagging of biomass central heating boilers describes the ash produced in the burning of biomass fuel. At high temperature, the ash remains in liquid or soft strong status. Once they touch the heating surface, they would certainly comply with it and develop right into slag.




Biomass fuel structure as well as environmental medium

The ash melting point is influenced by the structure of biomass fuel and environmental tool. If there are incompletely combusted fuels, they will make the environmental medium weakly reductive, and also reduced the melting point. Under this condition, the ash are simple to connect to the fireplace and also the wall surface of superheater. If the biomass gas has high wetness material, the heavy steam will soften potassium, which is the major web content in ash.



Pollutants in biomass gas trigger slagging

A big part of biomass gas are made by more than 1 basic material. Often they are blended with dust as well as sand. richi pellet machine transformed the make-up and melting temperature of biomass fuels. With high ash and also alkali steel material, these unclean biomass gas are simpler to trigger slagging.



Inadequate air in central heating boilers for burning

Often the biomass fuels are distributed unevenly in central heating boilers. They end up being heat combustion mass and also shed with not enough oxygen, which will create slagging. Inadequate air flow amount will certainly increase the slagging level. Therefore, to stay clear of biomass central heating boiler slagging, you should control the percentage of fuel and air.



You can adjust the air percentage by getting rid of some gas. Besides, slagging may develop from central heating boiler troubles. The feeding gadget can cause fuel stacking and also worsen slagging.



Uneven warm circulation of boiler surface

The central heating boiler inside temperature and also warm distribution have excellent impact on the slagging. As experience shows, slagging normally shows up in flue and also superheater surface area. When the liquid or soft solid ash approach the heating surface, it don't have adequate time to cool off, so it is very easy to stick to the home heating surface and also build up. As investigates shown, the higher the central heating boiler temperature, the more slagging. Slagging influence the warm exchange of boiler surface, obstruct the flue, boost the smoke flow speed, as well as worsen the heating surface wear.



Exactly how to address the slagging of biomass central heating boilers?

Now we understand the slagging of biomass boilers develops from the biomass gas residential or commercial properties and also central heating boiler design. To lower the slagging, we should select premium quality biomass pellets and also high-efficiency boilers, and also regulate the feeding rate. Yet you can't eliminate slagging totally. You require to cleanse the biomass central heating boilers frequently.



Vapor residue blower

Traditionally, they make use of steam soot blower to remove slagging in boilers, but the cleansing impact is hardly satisfactory. They have to wash the boiler with high-pressure water.



The potassium in biomass fuel create silicon in burning and also lower the softening temperature level to 800 ℃, which remains in the series of superheater. So the soften ash is very easy to attach to the heat wall and also tough to be gotten rid of by steam soot blower



Besides, steam residue blowers has following drawbacks. The boilers cleaned up by heavy steam residue blower have to wait on 15 days for next use. The purging location is restricted, with some dead angles. As the soot blowing period is long, there are too much ash transferred in the heating surface. They may sintered and also solidify, as well as boost the cleaning problems.



defocusing inhibitor and also pulse gas ash blower.

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



Defocusing inhibitor is a gas additive with high melting point and also combustion improver. When it is splashed right into the fireplace, it will certainly mix with fly ash as well as adhere to the half-melt ash. It will change the melting point of ash as well as ruin slagging. It can likewise form steel movie on the pipeline surface to prevent acid humidity deterioration.



Pulse gas ash blower can get rid of the ash deposit on the boiler heating surface area by purging, acoustic fatigue, thermal cleaning and neighborhood resonance. Finally, from this source remove the ash.



Pick the very best method to address slagging trouble


To utilize premium quality biomass gas in boilers can minimize slagging, but the cost will raise. If you have to utilize poor quality biomass gas, which has high wetness and also pollutants content, slagging is unpreventable. To make certain the secure running of boilers, you can incorporate defocusing prevention as well as pulse gas ash blower to successfully address the slagging problem.


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