Notes

Application of biomass boiler and wood pellet fuel<br>
Under the pressure of environmental protection and power dilemma, many countries has performed plans to reduce emission and advertise new energy. Under this condition, more and more coal-fired central heating boilers have actually been replaced by, or upgraded into biomass central heating boiler



Standard coal-fired boilers emit a lot of black smoke and also sulfur gas. A few of them are not equipped with desulfurizer. They will pollute the bordering areas. To change them with gas and electrical energy requires excessive efforts and price, numerous coal-fired central heating boiler proprietor usage biomass gas to change coal. Thinking about most coal-fired boilers are unfit for biomass fuel, there are specialized biomass fuel burning tools to resolve this trouble. They are made based on the characteristics of biomass fuel and also decrease the toxin exhaust.



Different types of biomass pellet boiler

Biomass boiler embraces biomass power, generally biomass pellets, as gas. According to different power media, they can be categorized right into biomass steam central heating boiler, biomass hot water boiler, biomass warm blast stove, biomass thermal oil heater.



According to their purpose, biomass central heating boilers can be categorized right into biomass thermal central heating boiler and also biomass electrical power boiler They both produce power by burning biomass fuels. Biomass thermal boiler usage thermal power, while biomass electrical power central heating boiler turn the thermal energy into electrical power. Biomass thermal boiler is still the most prominent type, whose technology is mature.



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



Tiny biomass central heating boiler

These boilers makes use of strong or gasified biomass fuels They generate heat in the form of warm water. Tiny biomass boiler features tiny volume, simple structure, small cost, but it has reduced power conversion performance and also reduced power supply. Little biomass central heating boiler is mostly for home heating in backwoods and also hot water supply.



Large biomass boiler.

These sort of biomass boiler usage solid biomass gas and supply hot water or vapor. The innovation is fully grown, the power supply is high, and also the energy loss is reduced. However some biomass boiler has fuel cocking owing to not enough burning, as well as the assistance center is not excellent.



Raw materials for biomass central heating boiler.

Biomass central heating boiler has large source of basic materials. All photosynthetic plants can be made use of as raw materials, including sawdust, wood chips, rice husk, sunflower seed covering, sorghum stalk, corn stalk, bean stalk, and so on. By high-heat and high-pressure processing in the molding equipment, these biomass materials are built into columnar biomass gas. They are fed right into biomass central heating boilers to generate heat.



2 usual biomass gas.

Usually, biomass molding fuel has 2 types-- biomass briquettes as well as wood pellet gas. The length of biomass briquettes is more than 15cm, the diameter is 30-40mm. They are made by biomass briquette press. Wood pellets is 6-8mm in size. They are made by wood pellet mill. Timber pellet fuels gradually take the place of biomass briquettes owing to high thickness, broad application as well as hassle-free utilizing. They burns much more adequately than biomass briquettes.



Biomass pellet gas has fiber web content of 70%. grass pellet mill is much lower than coal High thickness makes it convenient to store as well as transport. It can be applied in different equipment. Biomass pellets burns adequately, with less smoke and also ash material, as well as the combustion speed is 11% more than coal.



Benefits of timber pellet gas over coal.

Low carbon material: biomass gas has at the majority of 50% carbon material, so the heat worth is lower than coal.

High hydrogen material: biomass gas has even more volatiles, so they are less complicated to burn. The carbon and also hydrogen are incorporated into reduced molecular hydrocarbon, which will certainly separate out volatiles at heat.

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

Reduced thickness: the thickness of biomass gas is less than coal. Loosen texture makes it less complicated to burn out. The recurring carbon is less than coal ash.

Reduced sulfur web content: the sulfur material in biomass gas are less than 0.12%. You do not require to install desulfurizer tool.

Reduced carbon emission: biomass fuel is carbon-neutral, simply put, no carbon emission


Waste recycle: the fostering of biomass fuel can make full use of wastes, and alleviate their damages to environment. Besides, homemade pellet mill after burning can be utilized to produce plant food.

Mixed shooting: Biomass gas can be burned together with coal and also enhance the burning efficiency.




Biomass central heating boiler contamination emission.

Biomass central heating boiler produce small quantity of air pollutants, and solid waste that can be reused.



Polluting gases

Biomass gas generates little NOx as well as no carbon dioxide. The SO2 exhaust is lower than 33.6 mg/m3, and also the smoke and also ash emission is lower than 46mg/m3. They are far less than the national standard.



Solid waste

The primary solid waste of biomass central heating boiler is ash. They can be recycled by made right into potash plant food.



By furnishing the biomass boiler with desulfurizing and also dirt removing tool, we can reduce the toxin exhaust to minimum.



Ecological benefits of biomass boiler

To change coal with biomass fuel, we can lower the toxin emission in ambience. At the same time, the web carbon emission of biomass fuel is zero, which can soothe pollution.



Fostering of biomass fuel is an effective way to make use of the crop waste. If these plant waste decay under all-natural condition, they will generate a great deal of methane, which has higher greenhouse effect. By making them into fuel, we can turn waste into riches.



The recurring ash after shedding can be used as potash fertilizer. This way, we attain the power recycle amongst straw-- fuel-- plant food.


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