Notes

Application of biomass boiler as well as timber pellet fuel<br>
Under the stress of environmental protection and also energy dilemma, many nations has actually accomplished plans to cut exhaust and also promote new power. Under this problem, more and more coal-fired boilers have been replaced by, or upgraded into biomass boiler




Typical coal-fired boilers discharge a lot of black smoke and sulfur gas. A few of them are not furnished with desulfurizer. They will certainly pollute the surrounding areas. To replace them with gas as well as electrical power needs excessive initiatives as well as cost, many coal-fired boiler owner usage biomass fuel to change coal. Considering most coal-fired boilers are unsuited for biomass fuel, there are specific biomass fuel burning tools to fix this problem. They are developed based upon the attributes of biomass fuel and also lessen the pollutant emission.



Various types of biomass pellet central heating boiler

Biomass boiler embraces biomass power, normally biomass pellets, as fuel. According to different energy media, they can be classified into biomass steam boiler, biomass hot water boiler, biomass hot blast oven, biomass thermal oil furnace.



According to their function, biomass central heating boilers can be categorized into biomass thermal boiler as well as biomass electric power central heating boiler They both produce power by melting biomass gas. Biomass thermal central heating boiler use thermal power, while biomass electric power boiler transform the thermal energy into electric power. Biomass thermal boiler is still the most preferred kind, whose technology is fully grown.



According to the range, biomass thermal central heating boiler can be classified right into 2 kinds.



Small biomass central heating boiler

These central heating boilers uses solid or gasified biomass gas They create warm in the form of warm water. Little biomass boiler includes little quantity, simple framework, small cost, however it has low energy conversion efficiency as well as reduced energy supply. Small biomass central heating boiler is mostly for home heating in backwoods as well as hot water supply.



Large biomass boiler.

These sort of biomass central heating boiler use strong biomass fuel and also provide warm water or vapor. The innovation is mature, the power supply is high, and the power loss is low. Yet some biomass central heating boiler has gas cocking owing to insufficient burning, and also the support center is not ideal.



Raw materials for biomass boiler.

Biomass boiler has vast resource of raw materials. All photosynthetic plants can be made use of 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 processing in the molding equipment, these biomass products are formed into columnar biomass fuel. They are fed right into biomass central heating boilers to produce warmth.



2 usual biomass fuels.

Usually, biomass molding fuel has 2 kinds-- biomass briquettes and wood pellet gas. The size 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 size. They are made by timber pellet mill. Wood pellet fuels slowly take the place of biomass briquettes owing to high thickness, large application and hassle-free making use of. They burns extra completely than biomass briquettes.



Biomass pellet gas has fiber content of 70%. The sulfur material is much lower than coal High thickness makes it practical to shop and transportation. It can be used in different tools. Biomass pellets burns completely, with less smoke and ash content, as well as the burning rate is 11% greater than coal.



Advantages of timber pellet gas over coal.

Low carbon web content: biomass fuels has at a lot of 50% carbon material, so the warm worth is less than coal.

High hydrogen material: biomass fuels has even more volatiles, so they are simpler to burn. The carbon and also hydrogen are combined into low molecular hydrocarbon, which will certainly separate out volatiles at high temperature.

High oxygen material: biomass gas has more oxygen material than coal, so the warmth value is low.

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

Reduced sulfur web content: the sulfur material in biomass gas are less than 0.12%. You don't need to install desulfurizer tool.

Reduced carbon discharge: biomass gas is carbon-neutral, to put it simply, absolutely no carbon emission

Waste recycle: the fostering of biomass fuel can make complete use wastes, and relieve their damages to environment. Besides, livestock feed pellet machine recurring ash after shedding can be used to generate fertilizer.

Mixed shooting: Biomass gas can be melted together with coal and enhance the combustion effectiveness.



Biomass boiler air pollution emission.

Biomass central heating boiler send out small quantity of air pollutants, and also strong waste that can be recycled.



Polluting gases

Biomass gas creates little NOx and also no carbon dioxide. The SO2 discharge is lower than 33.6 mg/m3, and the smoke and ash emission is less than 46mg/m3. They are much lower than the nationwide requirement.



Solid waste

The primary strong waste of biomass boiler is ash. They can be reused by made into potash fertilizer.




By equipping the biomass boiler with desulfurizing and dust eliminating tool, we can lower the toxin exhaust to minimum.



Ecological benefits of biomass boiler

To change coal with biomass fuel, we can lower the toxin exhaust in ambience. On Richi machine , the internet carbon exhaust of biomass fuel is zero, which can eliminate greenhouse effect.



Adoption of biomass gas is a reliable method to utilize the crop waste. If these crop waste decay under natural condition, they will certainly generate a lot of methane, which has higher greenhouse effect. By making them into gas, we can transform waste into wide range.



The recurring ash after burning can be used as potash fertilizer. This way, we accomplish the power reuse among straw-- gas-- fertilizer.


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