Notes

Application of biomass boiler as well as wood pellet fuel<br>
Under the pressure of environmental protection and also energy crisis, several countries has carried out policies to cut exhaust and advertise brand-new energy. Under this problem, a growing number of coal-fired boilers have been changed by, or upgraded into biomass central heating boiler



Conventional coal-fired boilers send out a lot of black smoke as well as sulfur gas. A few of them are not geared up with desulfurizer. They will certainly pollute the surrounding areas. To change them with gas and also power calls for excessive efforts as well as price, so many coal-fired boiler proprietor usage biomass gas to replace coal. Thinking about most coal-fired boilers are unsuited for biomass fuel, there are specific biomass gas burning tools to address this problem. They are developed based on the attributes of biomass gas and also minimize the toxin discharge.



Different sorts of biomass pellet boiler

Biomass boiler adopts biomass energy, typically biomass pellets, as fuel. According to various power media, they can be classified into biomass heavy steam boiler, biomass hot water boiler, biomass hot blast range, biomass thermal oil furnace.



According to their purpose, biomass boilers can be identified into biomass thermal boiler and biomass electric power boiler They both produce power by burning biomass fuels. Biomass thermal central heating boiler use thermal power, while biomass electric power central heating boiler turn the thermal power into electrical power. Biomass thermal boiler is still one of the most preferred type, whose technology is fully grown.




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



Little biomass central heating boiler

These central heating boilers utilizes solid or gasified biomass fuels They create warmth in the form of hot water. Tiny biomass boiler features small quantity, basic structure, low price, however it has low power conversion performance and reduced energy supply. Tiny biomass central heating boiler is mainly for home heating in backwoods and hot water supply.



Massive biomass boiler.

These sort of biomass central heating boiler use solid biomass gas and offer warm water or vapor. The technology is fully grown, the power supply is high, as well as the power loss is low. However some biomass central heating boiler has fuel cocking owing to not enough burning, and also the support center is not ideal.



Raw materials for biomass central heating boiler.

Biomass boiler has wide resource of basic materials. All photosynthetic plants can be used as raw materials, consisting of sawdust, wood chips, rice husk, sunflower seed shell, sorghum stalk, corn stalk, bean stalk, and so on. By high-heat and also high-pressure processing in the molding tools, these biomass materials are formed into columnar biomass gas. They are fed into biomass boilers to create heat.



2 typical biomass gas.

Normally, biomass molding gas has 2 types-- biomass briquettes and timber pellet gas. The length of biomass briquettes is more than 15cm, the size is 30-40mm. They are made by biomass briquette press. Timber pellets is 6-8mm in diameter. They are made by wood pellet mill. Timber pellet fuels gradually replace biomass briquettes owing to high density, broad application and practical utilizing. They burns extra completely than biomass briquettes.



Biomass pellet fuel has fiber material of 70%. The sulfur content is far lower than coal High thickness makes it convenient to shop and transport. It can be applied in different equipment. Biomass pellets burns completely, with less smoke and ash material, as well as the combustion speed is 11% higher than coal.



Benefits of wood pellet fuel over coal.

Reduced carbon content: biomass fuels has at many 50% carbon content, so the heat value is less than coal.

High hydrogen web content: biomass fuels has even more volatiles, so they are less complicated to melt. The carbon as well as hydrogen are incorporated right into reduced molecular hydrocarbon, which will separate out volatiles at high temperature.

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

Low density: the density of biomass gas is less than coal. Loosen structure makes it simpler to wear out. The recurring carbon is lower than coal ash.

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

Reduced carbon emission: biomass fuel is carbon-neutral, to put it simply, absolutely no carbon exhaust

Waste recycle: the fostering of biomass gas can make full use wastes, as well as ease their damage to atmosphere. Besides, alfalfa pellet machine after burning can be utilized to produce plant food.

Combined firing: Biomass gas can be melted together with coal and improve the burning efficiency.



Biomass boiler pollution emission.

Biomass boiler release small quantity of air toxins, and also strong waste that can be recycled.



Contaminating gases

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



Strong waste

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



By gearing up the biomass central heating boiler with desulfurizing and also dirt getting rid of gadget, we can minimize the toxin exhaust to minimum.



Environmental advantages of biomass central heating boiler

To replace coal with biomass gas, we can lower the pollutant discharge in environment. At the same time, the internet carbon emission of biomass gas is absolutely no, which can alleviate greenhouse effect.




Fostering of biomass fuel is an effective way to take advantage of the plant waste. If biomass pellet machine price under all-natural condition, they will create a lot of methane, which has greater greenhouse effect. By making them right into fuel, we can transform waste into wide range.



The recurring ash after shedding can be utilized as potash fertilizer. In this way, we achieve the power recycle amongst straw-- fuel-- plant food.


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