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How to resolve the slagging of biomass central heating boilers?<br>
Biomass boilers embraces biomass wastes or biomass pellets as gas. In the burning of pellet fuels, the volatiles become gas and also have made complex response with smoke and dirt, coagulate and also stick to the heating pipe surface. The slagging as well as ash down payment will impact the procedure and also safety of central heating boilers. In this article, I will certainly analyze the features of slagging, find out the reason of biomass central heating boiler slagging, and also put forward reliable solutions.




Reasons for biomass central heating boiler slagging

The slagging of biomass central heating boilers refers to the ash generated in the burning of biomass fuel. At high temperature, the ash remains in liquid or soft solid status. Once they touch the home heating surface, they would abide by it as well as form into slag.



Biomass gas structure as well as ecological tool

The ash melting point is affected by the structure of biomass gas and ecological tool. If there are incompletely combusted fuels, they will make the environmental tool weakly reductive, as well as lower the melting point. Under this problem, the ash are very easy to attach to the fireplace and also the wall surface of superheater. If the biomass fuel has high wetness content, the steam will soften potassium, which is the major material in ash.



Impurities in biomass gas trigger slagging

A huge part of biomass fuels are made by more than 1 raw material. In some cases they are combined with dust and sand. These contaminations altered the make-up and melting temperature of biomass gas. With high ash as well as alkali steel content, these unclean biomass gas are easier to trigger slagging.



Not enough air in central heating boilers for burning

Often the biomass gas are distributed unevenly in central heating boilers. They become heat combustion mass and also shed with not enough oxygen, which will certainly trigger slagging. Insufficient ventilation quantity will boost the slagging degree. Therefore, to prevent biomass boiler slagging, you should manage the percentage of fuel as well as air.



You can adjust the air percentage by getting rid of some gas. Besides, slagging may emerge from boiler issues. The feeding device can cause fuel piling and also aggravate slagging.



Irregular heat distribution of boiler surface

The central heating boiler inside temperature and warmth distribution have wonderful effect on the slagging. As experience programs, slagging generally shows up in flue and superheater surface area. When the fluid or soft solid ash move toward the home heating surface, it do not have adequate time to cool off, so it is very easy to adhere to the home heating surface area as well as collect. As looks into proved, the greater the central heating boiler temperature level, the more slagging. Slagging manual pellet machine of central heating boiler surface, block the flue, enhance the smoke circulation speed, and also exacerbate the heating surface wear.



How to fix the slagging of biomass central heating boilers?

Currently we understand the slagging of biomass central heating boilers occurs from the biomass gas properties as well as central heating boiler style. To reduce the slagging, we must select excellent quality biomass pellets as well as high-efficiency central heating boilers, and control the feeding speed. Yet you can not eliminate slagging totally. You require to cleanse the biomass central heating boilers on a regular basis.



Vapor soot blower

Traditionally, they make use of vapor soot blower to remove slagging in boilers, yet the cleaning effect is hardly satisfying. They need to wash the central heating boiler with high-pressure water.



The potassium in biomass gas produce silicon in burning and also lower the softening temperature level to 800 ℃, which remains in the range of superheater. So the soften ash is simple to connect to the warmth wall surface and also tough to be removed by vapor residue blower



Besides, vapor residue blowers has adhering to negative aspects. The boilers cleaned by vapor residue blower have to wait on 15 days for following usage. The purging location is restricted, with some dead angles. As the soot blowing interval is long, there are excessive ash deposited in the home heating surface area. They may sintered and also solidify, and also boost the cleansing problems.



defocusing inhibitor as well as pulse gas ash blower.

Nowadays, many biomass boilers embrace defocusing inhibitor as well as pulse gas ash blower to solve biomass boiler slagging as well as accomplished exceptional result.



Defocusing inhibitor is a gas additive with high melting point and also burning improver. When it is splashed right into the fireplace, it will certainly combine with fly ash and stick to the half-melt ash. It will transform the melting point of ash and destroy slagging. It can additionally form metal film on the pipe surface to stop acid humidity rust.



Pulse gas ash blower can remove the ash deposit on the central heating boiler home heating surface by purging, acoustic tiredness, thermal cleansing as well as neighborhood vibration. Finally, the gas flow eliminate the ash.



Choose the very best way to solve slagging issue

To make use of premium quality biomass gas in boilers can decrease slagging, but the cost will raise. If amandus kahl pellet press need to utilize poor quality biomass gas, which has high moisture and contaminations web content, slagging is inevitable. To ensure the steady operating of boilers, you can combine defocusing inhibitor as well as pulse gas ash blower to efficiently solve the slagging problem.

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