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How to solve the slagging of biomass boilers
Just how to solve the slagging of biomass boilers?
Biomass boilers adopts biomass wastes or biomass pellets as gas. In the burning of pellet gas, the volatiles turn into gas as well as have made complex response with smoke and dust, coagulate as well as stick to the heating pipe surface area. The slagging as well as ash down payment will impact the procedure and also security of central heating boilers. In this article, I will assess the functions of slagging, learn the reason of biomass central heating boiler slagging, and also advanced efficient remedies.

Factors for biomass central heating boiler slagging
The slagging of biomass central heating boilers describes the ash generated in the burning of biomass fuel. At heat, the ash remains in fluid or soft strong condition. Once they touch the home heating surface, they would stick to it and develop into slag.

Biomass fuel composition as well as environmental medium
The ash melting point is affected by the structure of biomass gas and also ecological medium. If there are incompletely combusted gas, they will certainly make the environmental medium weakly reductive, and lower the melting point. Under this condition, the ash are easy to affix to the hearth and the wall surface of superheater. If the biomass gas has high moisture content, the vapor will certainly soften potassium, which is the significant material in ash.

Impurities in biomass fuels cause slagging
A large part of biomass fuels are made by more than 1 resources. Occasionally they are mixed with dirt as well as sand. These contaminations transformed the make-up and melting temperature of biomass fuels. With high ash and alkali metal web content, these impure biomass gas are simpler to create slagging.

Insufficient air in boilers for burning
Sometimes the biomass gas are dispersed erratically in central heating boilers. They become high temperature burning mass and shed with insufficient oxygen, which will certainly create slagging. Inadequate air flow amount will certainly enhance the slagging level. As a result, to prevent biomass boiler slagging, you must manage the percentage of fuel and also air.

You can change the air proportion by eliminating some fuels. Besides, slagging may occur from boiler problems. The feeding device can create gas piling and also intensify slagging.


Unequal heat distribution of boiler surface
The boiler inside temperature and also warm circulation have great influence on the slagging. As experience shows, slagging typically appears in flue and superheater surface. When the liquid or soft strong ash approach the heating surface area, it do not have sufficient time to cool down, so it is simple to follow the home heating surface as well as build up. As looks into proved, the greater the boiler temperature level, the more slagging. Slagging affect the warm exchange of central heating boiler surface area, block the flue, increase the smoke circulation speed, and exacerbate the home 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 buildings and boiler style. To decrease the slagging, we should pick premium quality biomass pellets and high-efficiency central heating boilers, and also regulate the feeding speed. Yet you can not eradicate slagging totally. You require to clean the biomass central heating boilers consistently.

Vapor soot blower
Generally, they make use of heavy steam soot blower to eliminate slagging in boilers, yet the cleaning impact is hardly satisfying. They have to clean the central heating boiler with high-pressure water.

second hand pellet machine in biomass gas produce silicon in burning as well as reduced the softening temperature level to 800 ℃, which remains in the variety of superheater. So the soften ash is simple to connect to the heat wall and also tough to be removed by vapor residue blower

Besides, heavy steam residue blowers has following disadvantages. richi pellet machine cleansed by vapor residue blower need to wait for 15 days for next use. The purging area is limited, with some dead angles. As the residue blowing period is long, there are excessive ash deposited in the home heating surface. They may sintered and also harden, and also raise the cleansing troubles.

defocusing inhibitor and also pulse gas ash blower.
Nowadays, several biomass central heating boilers adopt defocusing prevention and pulse gas ash blower to resolve biomass boiler slagging and attained exceptional result.

Defocusing prevention is a fuel additive with high melting point and also combustion improver. When it is splashed right into the fireplace, it will certainly blend with fly ash as well as adhere to the half-melt ash. It will transform the melting point of ash and also destroy slagging. It can likewise develop steel film on the pipe surface area to prevent acid humidity corrosion.

Pulse gas ash blower can clear the ash down payment on the central heating boiler heating surface by removing, acoustic tiredness, thermal cleaning as well as neighborhood resonance. Finally, small floating fish feed machine remove the ash.

Choose the best way to fix slagging issue
To make use of top quality biomass fuels in central heating boilers can minimize slagging, yet the cost will certainly increase. If you have to use poor quality biomass gas, which has high wetness as well as impurities content, slagging is unavoidable. To make certain the steady running of boilers, you can integrate defocusing prevention as well as pulse gas ash blower to properly address the slagging trouble.


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