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Just how to resolve the slagging of biomass central heating boilers?<br>
Biomass boilers takes on biomass wastes or biomass pellets as fuel. In the burning of pellet gas, the volatiles become gas and have made complex response with smoke and dust, coagulate as well as stick to the home heating pipeline surface. The slagging and ash deposit will certainly affect the procedure as well as security of central heating boilers. In this article, I will evaluate the functions of slagging, find out the factor of biomass central heating boiler slagging, and also put forward efficient solutions.




Factors for biomass boiler slagging

The slagging of biomass boilers refers to the ash generated in the burning of biomass fuel. At heat, the ash remains in fluid or soft strong status. Once they touch the home heating surface, they would comply with it and develop into slag.



Biomass fuel structure as well as ecological tool

The ash melting point is influenced by the composition of biomass fuel and environmental tool. If there are incompletely combusted fuels, they will make the ecological medium weakly reductive, as well as lower the melting point. Under this problem, the ash are easy to attach to the hearth and the wall of superheater. If kahl pellet mill has high wetness web content, the vapor will soften potassium, which is the major content in ash.



Impurities in biomass gas trigger slagging

A big part of biomass gas are made by greater than 1 raw material. In some cases they are mixed with dust as well as sand. These impurities transformed the make-up and melting temperature level of biomass gas. With high ash and also alkali steel content, these unclean biomass fuels are much easier to cause slagging.



Not enough air in central heating boilers for burning

Sometimes the biomass fuels are distributed unevenly in central heating boilers. They end up being high temperature combustion mass as well as burn with inadequate oxygen, which will trigger slagging. Insufficient ventilation amount will enhance the slagging degree. As a result, to prevent biomass boiler slagging, you should manage the proportion of gas and air.



You can adjust the air proportion by removing some gas. Besides, slagging may arise from boiler troubles. The feeding tool can create fuel stacking and exacerbate slagging.



Irregular heat circulation of boiler surface

The central heating boiler inside temperature and also heat circulation have great impact on the slagging. As experience programs, slagging usually appears in flue and superheater surface area. When the fluid or soft strong ash approach the heating surface, it don't have enough time to cool off, so it is very easy to follow the home heating surface as well as collect. As researches shown, the higher the boiler temperature, the even more slagging. Slagging influence the warm exchange of boiler surface, obstruct the flue, enhance the smoke circulation rate, and aggravate the home heating surface wear.



How to solve the slagging of biomass central heating boilers?

Now we understand the slagging of biomass central heating boilers occurs from the biomass fuel properties and boiler design. To reduce the slagging, we need to pick high quality biomass pellets as well as high-efficiency boilers, and manage the feeding speed. Yet you can not eradicate slagging totally. You need to clean the biomass central heating boilers consistently.



Vapor residue blower

Generally, they use heavy steam residue blower to eliminate slagging in boilers, yet the cleaning impact is barely satisfactory. They need to wash the central heating boiler with high-pressure water.



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



Besides, heavy steam soot blowers has complying with negative aspects. i was reading this cleansed by heavy steam residue blower need to wait on 15 days for next use. The purging area is restricted, with some dead angles. As the residue blowing period is long, there are excessive ash deposited in the home heating surface. They may sintered as well as set, and also boost the cleansing problems.



defocusing prevention and pulse gas ash blower.

Nowadays, numerous biomass central heating boilers adopt defocusing inhibitor and also pulse gas ash blower to address biomass boiler slagging and achieved remarkable effect.




Defocusing prevention is a fuel additive with high melting point and also burning improver. When it is splashed into the hearth, it will certainly blend with fly ash as well as stay with the half-melt ash. It will alter the melting point of ash and destroy slagging. It can additionally form steel movie on the pipeline surface area to stop acid dew point deterioration.



Pulse gas ash blower can remove the ash down payment on the central heating boiler heating surface area by removing, acoustic fatigue, thermal cleaning and neighborhood resonance. Finally, the gas circulation remove the ash.



Choose the best means to resolve slagging trouble

To utilize high quality biomass fuels in boilers can minimize slagging, however the price will enhance. If you need to make use of low quality biomass gas, which has high wetness and impurities web content, slagging is unpreventable. To make sure the secure running of boilers, you can incorporate defocusing prevention as well as pulse gas ash blower to successfully address the slagging issue.


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