Notes

Application of biomass boiler and also wood pellet fuel<br>
Under the pressure of environmental management and energy dilemma, lots of countries has performed policies to cut discharge and also advertise new power. Under this condition, a growing number of coal-fired central heating boilers have been changed by, or updated into biomass boiler



Conventional coal-fired central heating boilers give off a great deal of black smoke and also sulfur gas. Several of them are not geared up with desulfurizer. They will contaminate the bordering locations. To change them with gas and electricity needs excessive efforts and also price, a lot of coal-fired boiler owner usage biomass fuel to change coal. Thinking about most coal-fired central heating boilers are unfit for biomass gas, there are specific biomass gas burning gadgets to address this issue. They are made based on the qualities of biomass gas and also minimize the toxin emission.



Various sorts of biomass pellet central heating boiler

Biomass central heating boiler takes on biomass power, typically biomass pellets, as gas. According to different energy media, they can be classified into biomass vapor boiler, biomass warm water boiler, biomass warm blast oven, biomass thermal oil furnace.



According to their function, biomass boilers can be classified right into biomass thermal central heating boiler and biomass electrical power boiler They both create power by burning biomass fuels. Biomass thermal central heating boiler use thermal energy, while biomass electrical power central heating boiler turn the thermal energy into electrical power. Biomass thermal boiler is still one of the most prominent kind, whose technology is fully grown.



According to the range, biomass thermal central heating boiler can be categorized into 2 types.



Tiny biomass boiler

These boilers uses strong or gasified biomass fuels They generate warm in the form of warm water. sawdust pellet press , basic structure, affordable price, but it has reduced power conversion efficiency and also reduced energy supply. Small biomass boiler is mainly for home heating in backwoods as well as hot water supply.



Massive biomass boiler.

These kind of biomass boiler use solid biomass fuel as well as offer warm water or steam. The innovation is fully grown, the energy supply is high, as well as the power loss is reduced. Yet some biomass boiler has fuel cocking owing to not enough burning, as well as the support facility is not excellent.



Basic material for biomass central heating boiler.

Biomass boiler has large source of raw materials. All photosynthetic plants can be used as resources, consisting of sawdust, wood chips, rice husk, sunflower seed shell, sorghum stalk, corn stalk, bean stalk, etc. By high-heat as well as high-pressure handling in the molding equipment, these biomass materials are formed right into columnar biomass gas. They are fed into biomass central heating boilers to generate warm.



2 typical biomass fuels.


Normally, biomass molding fuel has 2 kinds-- biomass briquettes and wood pellet fuel. The length of biomass briquettes is greater than 15cm, the diameter is 30-40mm. They are made by biomass briquette press. Timber pellets is 6-8mm in diameter. They are made by timber pellet mill. Timber pellet fuels progressively fill in biomass briquettes owing to high density, large application and also practical using. They burns extra sufficiently than biomass briquettes.



Biomass pellet fuel has fiber content of 70%. The sulfur material is much lower than coal High thickness makes it convenient to store and also transport. It can be applied in different equipment. Biomass pellets burns sufficiently, with less smoke and ash web content, and also the combustion rate is 11% higher than coal.



Advantages of wood pellet gas over coal.

Reduced carbon content: biomass fuels has at the majority of 50% carbon web content, so the warm worth is lower than coal.

High hydrogen content: biomass gas has even more volatiles, so they are easier to shed. The carbon and hydrogen are incorporated right into low molecular hydrocarbon, which will separate out volatiles at heat.

High oxygen web content: biomass fuel has more oxygen content than coal, so the warm value is low.

Low density: the thickness of biomass fuel is lower than coal. Loosen up appearance makes it easier to stress out. The recurring carbon is less than coal ash.

Reduced sulfur material: the sulfur material in biomass fuels are less than 0.12%. You do not require to set up desulfurizer tool.

Low carbon discharge: biomass fuel is carbon-neutral, to put it simply, absolutely no carbon discharge

Waste reuse: the fostering of biomass gas can make full use wastes, and soothe their damage to atmosphere. Besides, the residual ash after burning can be used to produce plant food.

Combined shooting: Biomass gas can be shed together with coal as well as boost the combustion efficiency.



Biomass central heating boiler contamination emission.

Biomass central heating boiler release small quantity of air contaminants, as well as solid waste that can be recycled.



Contaminating gases


Biomass gas generates little NOx and no Co2. The SO2 exhaust is lower than 33.6 mg/m3, and the smoke as well as ash exhaust is lower than 46mg/m3. They are much less than the nationwide standard.



Strong waste

The main solid waste of biomass central heating boiler is ash. They can be reused by made right into potash fertilizer.



By furnishing the biomass central heating boiler with desulfurizing and also dirt removing gadget, we can lower the toxin exhaust to minimum.



Environmental benefits of biomass boiler

To replace coal with biomass fuel, we can decrease the contaminant exhaust in atmosphere. Meanwhile, hand pellet machine of biomass fuel is zero, which can relieve greenhouse effect.



Fostering of biomass fuel is an efficient method to make use of the crop waste. If these plant waste degeneration under all-natural problem, they will produce a great deal of methane, which has greater pollution. By making them into fuel, we can turn waste into wide range.



The recurring ash after shedding can be utilized as potash plant food. This way, we achieve the energy reuse among straw-- fuel-- plant food.


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