Notes

Application of biomass boiler and wood pellet gas<br>
Under the pressure of environmental protection as well as power situation, many countries has actually executed policies to cut emission and promote brand-new power. Under this problem, increasingly more coal-fired central heating boilers have actually been changed by, or upgraded into biomass boiler



Traditional coal-fired boilers release a great deal of black smoke and also sulfur gas. A few of them are not geared up with desulfurizer. They will certainly contaminate the bordering areas. To replace them with gas as well as electrical power requires too much initiatives as well as expense, many coal-fired boiler proprietor usage biomass gas to change coal. Thinking about most coal-fired central heating boilers are unfit for biomass gas, there are customized biomass gas burning devices to address this issue. They are made based upon the attributes of biomass gas as well as lessen the contaminant exhaust.



Different kinds of biomass pellet central heating boiler

Biomass boiler takes on biomass energy, usually biomass pellets, as fuel. According to different energy media, they can be classified right into biomass heavy steam central heating boiler, biomass warm water boiler, biomass warm blast range, biomass thermal oil furnace.



According to their purpose, biomass central heating boilers can be identified right into biomass thermal central heating boiler as well as biomass electric power central heating boiler They both generate power by shedding biomass fuels. Biomass thermal boiler use thermal power, while biomass electric power central heating boiler turn the thermal energy into electrical power. Biomass thermal central heating boiler is still one of the most popular kind, whose modern technology is mature.



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



Tiny biomass central heating boiler

These boilers makes use of solid or gasified biomass fuels They produce heat in the form of hot water. Little biomass central heating boiler features little volume, straightforward framework, low cost, but it has low power conversion effectiveness and also low power supply. Tiny biomass central heating boiler is primarily for house heating in rural areas as well as warm water supply.



Massive biomass central heating boiler.

These sort of biomass boiler use strong biomass gas as well as provide warm water or heavy steam. The modern technology is fully grown, the energy supply is high, as well as the energy loss is reduced. Yet some biomass boiler has fuel cocking owing to inadequate burning, and also the support center is not excellent.




Basic material for biomass boiler.

Biomass central heating boiler has large source of raw materials. All photosynthetic plants can be made use of as raw materials, including sawdust, timber chips, rice husk, sunflower seed shell, sorghum stalk, corn stalk, bean stalk, etc. By look at more info -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 create heat.



2 common biomass gas.

Normally, biomass molding fuel has 2 kinds-- biomass briquettes and wood pellet fuel. The size 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 timber pellet mill. Wood pellet fuels slowly replace biomass briquettes owing to high thickness, broad application and hassle-free utilizing. They burns much more completely than biomass briquettes.



Biomass pellet fuel has fiber material of 70%. The sulfur web content is far lower than coal High thickness makes it hassle-free to shop and also transportation. It can be used in different equipment. Richi machinery burns adequately, with much less smoke as well as ash material, and also the burning speed is 11% more than coal.



Advantages of wood pellet gas over coal.

Low carbon material: biomass gas contends most 50% carbon content, so the warmth value is lower than coal.

High hydrogen material: biomass fuels has more volatiles, so they are easier to shed. The carbon as well as hydrogen are combined right into reduced molecular hydrocarbon, which will certainly separate out volatiles at heat.

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

Low density: the density of biomass fuel is less than coal. chicken feed pellet machine for sale makes it less complicated to wear out. The recurring carbon is less than coal ash.

Low sulfur material: the sulfur web content in biomass gas are less than 0.12%. You don't require to set up desulfurizer device.

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

Waste reuse: the adoption of biomass gas can make complete use wastes, and also ease their damages to setting. Besides, the residual ash after melting can be used to create fertilizer.

Mixed firing: Biomass fuel can be shed together with coal and also improve the combustion performance.



Biomass central heating boiler pollution emission.

Biomass boiler give off small quantity of air toxins, as well as 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 as well as ash discharge is lower than 46mg/m3. They are much less than the national requirement.



Solid waste

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




By equipping the biomass central heating boiler with desulfurizing and dust getting rid of device, we can reduce the contaminant emission to minimum.



Environmental benefits of biomass central heating boiler

To replace coal with biomass fuel, we can reduce the toxin discharge in atmosphere. At the same time, the web carbon emission of biomass fuel is zero, which can ease pollution.



Fostering of biomass gas is a reliable method to utilize the crop waste. If these plant waste degeneration under natural problem, they will certainly produce a great deal of methane, which has greater greenhouse effect. By making them into gas, we can turn waste right into wide range.



The residual ash after shedding can be made use of as potash fertilizer. By doing this, we attain the energy recycle among straw-- gas-- plant food.


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