Notes

Application of biomass boiler and wood pellet fuel<br>
Under the pressure of environmental protection and energy situation, numerous countries has performed policies to reduce exhaust and promote new energy. Under this condition, increasingly more coal-fired boilers have been replaced by, or updated right into biomass boiler



Typical coal-fired central heating boilers emit a great deal of black smoke and also sulfur gas. A few of them are not geared up with desulfurizer. They will pollute the bordering locations. To replace them with gas and power requires way too much initiatives and price, so many coal-fired boiler owner use biomass gas to replace coal. Considering most coal-fired central heating boilers are unfit for biomass gas, there are specific biomass fuel burning gadgets to resolve this problem. They are designed based on the features of biomass gas as well as minimize the toxin exhaust.



Different sorts of biomass pellet central heating boiler

Biomass boiler takes on biomass power, generally biomass pellets, as gas. According to different energy media, they can be identified right into biomass steam central heating boiler, biomass hot water boiler, biomass hot blast range, biomass thermal oil heater.



According to their purpose, biomass central heating boilers can be categorized into biomass thermal central heating boiler as well as biomass electric power central heating boiler They both generate power by burning biomass gas. Biomass thermal boiler usage thermal power, while biomass electrical power boiler transform the thermal energy right into electric power. Biomass thermal central heating boiler is still one of the most prominent type, whose modern technology is fully grown.



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



Small biomass boiler

These boilers makes use of strong or gasified biomass gas They create warm in the form of warm water. Small biomass central heating boiler includes small volume, simple structure, low price, yet it has reduced power conversion performance as well as reduced energy supply. Tiny biomass boiler is mainly for residence heating in backwoods and hot water supply.



Large-scale biomass boiler.

These type of biomass boiler usage strong biomass gas and also offer hot water or heavy steam. The innovation is fully grown, the energy supply is high, as well as the energy loss is reduced. But some biomass boiler has gas cocking owing to inadequate burning, as well as the support center is not ideal.



Raw materials for biomass boiler.

Biomass central heating boiler has vast resource of raw materials. All photosynthetic plants can be utilized as resources, including 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 devices, these biomass products are built right into columnar biomass gas. They are fed right into biomass boilers to create warmth.




2 typical biomass gas.

Normally, biomass molding fuel has 2 types-- biomass briquettes and also timber pellet fuel. 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 diameter. They are made by timber pellet mill. Timber pellet fuels slowly fill in biomass briquettes owing to high thickness, broad application and also practical using. They burns a lot more completely than biomass briquettes.



Biomass pellet gas has fiber content of 70%. The sulfur material is much lower than coal High thickness makes it hassle-free to shop and also transport. It can be applied in different tools. Biomass pellets burns adequately, with less smoke and also ash material, and also the burning rate is 11% higher than coal.



Benefits of timber pellet fuel over coal.

Low carbon material: biomass gas contends a lot of 50% carbon web content, so the warm value is lower than coal.

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

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

Low density: the density of biomass fuel is less than coal. Loosen up structure makes it simpler to stress out. The residual carbon is lower than coal ash.

Low sulfur material: the sulfur web content in biomass fuels are less than 0.12%. flat die pellet mill don't require to mount desulfurizer device.

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

Waste reuse: the adoption of biomass gas can make complete use wastes, as well as eliminate their damages to environment. Besides, the recurring ash after shedding can be used to produce fertilizer.

Combined firing: Biomass fuel can be shed along with coal as well as boost the combustion efficiency.



Biomass central heating boiler air pollution emission.

Biomass central heating boiler send out small quantity of air toxins, and strong waste that can be reused.



Contaminating gases

Biomass gas creates little NOx as well as no carbon dioxide. The SO2 exhaust is lower than 33.6 mg/m3, as well as the smoke as well as ash emission is lower than 46mg/m3. They are much lower than the nationwide standard.



Strong waste

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



By equipping the biomass central heating boiler with desulfurizing as well as dirt getting rid of gadget, we can lower the pollutant discharge to minimum.



Ecological advantages of biomass boiler

To replace coal with biomass fuel, we can reduce the contaminant emission in ambience. On wood pelletizer for sale , the net carbon discharge of biomass fuel is absolutely no, which can alleviate greenhouse effect.




Adoption of biomass fuel is an effective method to utilize the plant waste. If these plant waste degeneration under natural condition, they will create a lot of methane, which has greater pollution. By making them into fuel, we can transform waste right into wide range.



The recurring ash after burning can be used as potash plant food. By doing this, we achieve the energy recycle among straw-- gas-- plant food.


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