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How to resolve the slagging of biomass central heating boilers?<br>
Biomass boilers adopts biomass wastes or biomass pellets as gas. In the burning of pellet gas, the volatiles turn into gas and also have complicated reaction with smoke as well as dirt, coagulate and also adhere to the heating pipeline surface. The slagging and also ash down payment will certainly impact the procedure and also security of boilers. In this write-up, I will analyze the features of slagging, learn the factor of biomass central heating boiler slagging, as well as put forward effective remedies.



Factors for biomass 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 condition. Once they touch the heating surface area, they would follow it and also develop into slag.



Biomass gas make-up and also environmental medium

The ash melting point is influenced by the make-up of biomass gas as well as environmental tool. If there are incompletely ignited fuels, they will certainly make the environmental tool weakly reductive, and reduced the melting point. Under this condition, the ash are simple to connect to the fireplace and the wall surface of superheater. If the biomass gas has high moisture content, the steam will soften potassium, which is the major material in ash.



Impurities in biomass fuels trigger slagging

A big part of biomass fuels are made by more than 1 raw material. Often they are combined with dust as well as sand. These contaminations changed the structure as well as melting temperature level of biomass fuels. With high ash and also alkali steel material, these unclean biomass gas are simpler to cause slagging.



Not enough air in boilers for burning

Often the biomass gas are distributed unevenly in boilers. They end up being heat combustion mass as well as burn with not enough oxygen, which will certainly cause slagging. Inadequate ventilation quantity will certainly increase the slagging degree. Consequently, to prevent biomass central heating boiler slagging, you must manage the proportion of fuel as well as air.




You can change the air proportion by removing some gas. Besides, slagging might occur from central heating boiler issues. The feeding gadget can create fuel piling and also aggravate slagging.



Unequal warm circulation of boiler surface

The central heating boiler inside temperature and also warmth circulation have terrific influence on the slagging. As pellet pro pellet mill shows, slagging normally appears in flue and also superheater surface. When xrf pellet press or soft strong ash approach the heating surface, it don't have adequate time to cool off, so it is very easy to abide by the heating surface area and also build up. As investigates confirmed, the greater the boiler temperature level, the even more slagging. Slagging affect the warmth exchange of boiler surface area, obstruct the flue, increase the smoke flow rate, as well as aggravate the heating surface wear.



Exactly how to resolve the slagging of biomass boilers?

Currently we understand the slagging of biomass boilers arises from the biomass gas residential properties as well as central heating boiler style. To lower the slagging, we ought to pick premium quality biomass pellets and high-efficiency boilers, and control the feeding speed. But you can not remove slagging entirely. You require to cleanse the biomass boilers regularly.



Steam soot blower

Traditionally, they utilize steam soot blower to eliminate slagging in boilers, yet the cleaning result is hardly sufficient. They have to clean the central heating boiler with high-pressure water.



The potassium in biomass fuel produce silicon in burning and also lower the softening temperature level to 800 ℃, which remains in the variety of superheater. So the soften ash is easy to attach to the warmth wall as well as hard to be gotten rid of by steam residue blower



Besides, vapor soot blowers has adhering to drawbacks. The central heating boilers cleaned by heavy steam soot blower need to await 15 days for following use. The purging area is restricted, with some dead angles. As the residue blowing interval is long, there are excessive ash deposited in the home heating surface. They might sintered and harden, and enhance the cleaning difficulties.



defocusing inhibitor as well as pulse gas ash blower.

Nowadays, lots of biomass boilers adopt defocusing inhibitor and also pulse gas ash blower to solve biomass central heating boiler slagging as well as attained amazing impact.



Defocusing prevention is a fuel additive with high melting point and also burning improver. When it is splashed right into the hearth, it will blend with fly ash as well as stay with the half-melt ash. It will transform the melting point of ash as well as damage slagging. It can also form steel movie on the pipe surface area to prevent acid humidity deterioration.



Pulse gas ash blower can clear the ash deposit on the central heating boiler heating surface area by purging, acoustic exhaustion, thermal cleaning as well as neighborhood vibration. Finally, the gas flow take away the ash.



Select the most effective method to fix slagging trouble

To make use of excellent quality biomass gas in central heating boilers can decrease slagging, yet the expense will raise. If you have to utilize low quality biomass gas, which has high wetness and also impurities material, slagging is inevitable. To make certain the secure operating of boilers, you can combine defocusing prevention and also pulse gas ash blower to efficiently fix the slagging issue.

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