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How to solve the slagging of biomass boilers
Just how to resolve the slagging of biomass boilers?
Biomass central heating boilers takes on biomass wastes or biomass pellets as gas. In the burning of pellet gas, the volatiles become gas and also have made complex response with smoke and dust, coagulate and also adhere to the home heating pipeline surface area. The slagging as well as ash down payment will affect the operation and also safety of central heating boilers. In this write-up, I will certainly assess the functions of slagging, find out the factor of biomass boiler slagging, as well as advanced reliable remedies.

Reasons for biomass central heating boiler slagging
The slagging of biomass boilers refers to the ash produced in the burning of biomass gas. At extruder pellet machine , the ash is in fluid or soft strong condition. Once they touch the heating surface area, they would abide by it and form into slag.

Biomass fuel make-up as well as environmental tool
The ash melting point is influenced by the composition of biomass gas as well as ecological medium. If there are incompletely combusted gas, they will make the environmental medium weakly reductive, as well as lower the melting point. Under this condition, the ash are simple to attach to the fireplace and also the wall of superheater. If the biomass gas has high dampness content, the steam will certainly soften potassium, which is the major web content in ash.

Impurities in biomass fuels trigger slagging
A big part of biomass gas are made by greater than 1 raw material. In some cases they are combined with dust and sand. These pollutants changed the composition as well as melting temperature level of biomass gas. With feed pellet making machine and also alkali metal content, these impure biomass fuels are easier to trigger slagging.

Insufficient air in central heating boilers for burning
Occasionally the biomass gas are distributed unevenly in boilers. They become heat combustion mass as well as shed with not enough oxygen, which will certainly cause slagging. Inadequate ventilation amount will certainly enhance the slagging degree. Consequently, to stay clear of biomass boiler slagging, you should control the proportion of gas as well as air.

You can readjust the air proportion by getting rid of some gas. Besides, slagging might occur from boiler troubles. The feeding tool can create fuel stacking and worsen slagging.

Irregular warm distribution of boiler surface
The boiler inside temperature as well as warm circulation have terrific effect on the slagging. As experience shows, slagging normally appears in flue and superheater surface area. When the fluid or soft strong ash move toward the home heating surface area, it don't have sufficient time to cool, so it is simple to abide by the home heating surface and build up. As investigates confirmed, the greater the central heating boiler temperature level, the even more slagging. Slagging affect the heat exchange of boiler surface, block the flue, boost the smoke circulation speed, and intensify the home heating surface area wear.

Exactly how to fix the slagging of biomass boilers?
Currently we know the slagging of biomass central heating boilers develops from the biomass fuel properties as well as boiler design. To reduce the slagging, we ought to choose top quality biomass pellets as well as high-efficiency central heating boilers, as well as regulate the feeding speed. Yet you can't eliminate slagging totally. alfalfa pellet machine for sale need to clean the biomass boilers frequently.

Heavy steam soot blower
Typically, they make use of vapor soot blower to remove slagging in boilers, however the cleaning effect is barely satisfying. They have to clean the central heating boiler with high-pressure water.

The potassium in biomass gas generate silicon in burning and reduced the softening temperature level to 800 ℃, which is in the series of superheater. So the soften ash is simple to affix to the heat wall surface as well as tough to be gotten rid of by vapor residue blower



Besides, heavy steam residue blowers has adhering to drawbacks. The boilers cleansed by heavy steam residue blower need to await 15 days for next usage. The removing area is restricted, with some dead angles. As the soot blowing interval is long, there are excessive ash transferred in the home heating surface area. They may sintered and also solidify, and increase the cleaning problems.

defocusing inhibitor and also pulse gas ash blower.
Nowadays, lots of biomass boilers embrace defocusing prevention as well as pulse gas ash blower to fix biomass boiler slagging and attained impressive effect.

Defocusing prevention is a gas additive with high melting point as well as burning improver. When it is sprayed right into the fireplace, it will certainly mix with fly ash as well as stay with the half-melt ash. It will transform the melting point of ash and also ruin slagging. It can likewise develop steel film on the pipe surface to stop acid humidity rust.

Pulse gas ash blower can clear the ash deposit on the boiler heating surface by purging, acoustic exhaustion, thermal cleaning and also neighborhood resonance. At last, the gas circulation take away the ash.

Select the best method to resolve slagging issue
To utilize top quality biomass gas in central heating boilers can lower slagging, yet the expense will certainly boost. If you need to use low quality biomass fuels, which has high dampness and also impurities content, slagging is inescapable. To make sure the stable operating of boilers, you can combine defocusing inhibitor as well as pulse gas ash blower to effectively resolve the slagging problem.


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