Notes

Application of biomass central heating boiler and timber pellet gas<br>
Under check this site out of environmental protection and also power dilemma, several nations has carried out plans to reduce exhaust as well as promote brand-new energy. Under this problem, increasingly more coal-fired boilers have been replaced by, or upgraded into biomass boiler



Typical coal-fired boilers release a great deal of black smoke and also sulfur gas. A few of them are not furnished with desulfurizer. They will contaminate the bordering locations. To change them with gas as well as electricity needs way too much initiatives and price, many coal-fired boiler owner use biomass gas to change coal. Thinking about most coal-fired central heating boilers are unsuited for biomass gas, there are specific biomass fuel burning tools to resolve this trouble. They are designed based upon the attributes of biomass gas and reduce the toxin exhaust.



Various kinds of biomass pellet boiler

Biomass boiler takes on biomass power, normally biomass pellets, as gas. According to different power media, they can be categorized right into biomass vapor boiler, biomass warm water boiler, biomass warm blast range, biomass thermal oil heating system.



According to their function, biomass central heating boilers can be identified into biomass thermal boiler and also biomass electrical power central heating boiler They both create power by melting biomass gas. die for pellet mill , while biomass electrical power boiler transform the thermal energy right into electrical power. Biomass thermal central heating boiler is still one of the most prominent type, whose innovation is fully grown.




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



Little biomass boiler

These central heating boilers makes use of solid or gasified biomass fuels They create warm in the form of hot water. wood pellet machine , basic framework, low price, however it has low energy conversion effectiveness and reduced energy supply. Tiny biomass central heating boiler is primarily for house heating in rural areas as well as warm water supply.



Large-scale biomass central heating boiler.

These type of biomass central heating boiler use strong biomass gas as well as offer hot water or steam. The modern technology is fully grown, the energy supply is high, as well as the energy loss is reduced. But some biomass central heating boiler has fuel cocking owing to not enough burning, as well as the assistance facility is not ideal.



Raw materials for biomass boiler.

Biomass boiler has wide resource of basic materials. All photosynthetic plants can be made use of as raw materials, consisting of sawdust, timber 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 materials are built into columnar biomass fuel. They are fed right into biomass central heating boilers to produce warmth.



2 usual biomass fuels.

Generally, biomass molding fuel has 2 kinds-- biomass briquettes and timber pellet gas. The size of biomass briquettes is greater than 15cm, the diameter is 30-40mm. They are made by biomass briquette press. Wood pellets is 6-8mm in diameter. They are made by wood pellet mill. Timber pellet gas slowly take the place of biomass briquettes owing to high thickness, vast application as well as practical making use of. They burns a lot more completely than biomass briquettes.



Biomass pellet gas has fiber web content of 70%. The sulfur content is far lower than coal High density makes it convenient to store and also transport. It can be used in various equipment. Biomass pellets burns completely, with much less smoke as well as ash web content, and the burning speed is 11% higher than coal.



Advantages of timber pellet gas over coal.

Reduced carbon material: biomass fuels has at a lot of 50% carbon content, so the warm value is lower than coal.

High hydrogen web content: biomass gas has even more volatiles, so they are less complicated to shed. The carbon and also hydrogen are integrated into low molecular hydrocarbon, which will certainly separate out volatiles at heat.

High oxygen content: biomass fuel has even more oxygen content than coal, so the heat worth is low.

Reduced density: the density of biomass fuel is less than coal. Loosen structure makes it simpler to wear out. The residual carbon is less than coal ash.

Reduced sulfur material: the sulfur web content in biomass fuels are less than 0.12%. You do not require to mount desulfurizer device.

Reduced carbon emission: biomass gas is carbon-neutral, in other words, no carbon discharge

Waste recycle: the fostering of biomass gas can make complete use of wastes, and eliminate their damage to setting. Besides, the recurring ash after burning can be made use of to generate fertilizer.


Blended firing: Biomass fuel can be melted along with coal and enhance the combustion effectiveness.



Biomass boiler contamination exhaust.

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



Contaminating gases

Biomass gas produces little NOx as well as no carbon dioxide. The SO2 exhaust is less than 33.6 mg/m3, and the smoke and ash discharge is lower than 46mg/m3. They are far lower than the nationwide criterion.



Solid waste

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



By furnishing the biomass central heating boiler with desulfurizing and dust removing device, we can decrease the pollutant exhaust to minimum.



Ecological advantages of biomass boiler

To change coal with biomass fuel, we can reduce the pollutant emission in environment. At the same time, the net carbon emission of biomass gas is zero, which can relieve greenhouse effect.



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



The residual ash after burning can be used as potash fertilizer. In this way, we accomplish the energy reuse among straw-- gas-- fertilizer.


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