Notes

Application of biomass central heating boiler as well as wood pellet gas<br>
Under the pressure of environmental management as well as power situation, many nations has actually executed policies to reduce discharge and also advertise brand-new power. Under this condition, more and more coal-fired boilers have been replaced by, or upgraded right into biomass boiler



Conventional coal-fired boilers release a great deal of black smoke and sulfur gas. Several of them are not furnished with desulfurizer. They will certainly pollute the bordering locations. To replace them with gas and power needs excessive efforts as well as expense, so many coal-fired central heating boiler owner usage biomass fuel to change coal. Taking into consideration most coal-fired central heating boilers are unfit for biomass gas, there are customized biomass gas burning gadgets to solve this issue. They are made based on the characteristics of biomass fuel and minimize the pollutant exhaust.



Different sorts of biomass pellet central heating boiler

Biomass central heating boiler takes on biomass power, generally biomass pellets, as gas. According to various power media, they can be identified right into biomass vapor central heating boiler, biomass warm water central heating boiler, biomass warm blast stove, biomass thermal oil heater.



According to their function, biomass central heating boilers can be categorized right into biomass thermal boiler as well as biomass electric power central heating boiler They both create power by burning biomass gas. Biomass thermal boiler usage thermal power, while biomass electric power central heating boiler turn the thermal energy into electric power. Biomass thermal central heating boiler is still the most preferred kind, whose technology is mature.




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



Small biomass central heating boiler

These central heating boilers utilizes strong or gasified biomass fuels They create heat in the form of hot water. Tiny biomass central heating boiler includes little quantity, basic structure, low cost, however it has reduced power conversion performance and also low power supply. Little biomass boiler is primarily for house heating in backwoods as well as warm water supply.



Massive biomass boiler.

These kind of biomass central heating boiler use solid biomass fuel and also offer hot water or vapor. The modern technology is mature, the energy supply is high, and the power loss is low. But some biomass boiler has fuel cocking owing to inadequate burning, and also the assistance facility is not excellent.



Raw materials for biomass central heating boiler.

Biomass boiler has vast source of basic materials. All photosynthetic plants can be utilized as raw materials, consisting of sawdust, wood chips, rice husk, sunflower seed covering, sorghum stalk, corn stalk, bean stalk, etc. By high-heat and also high-pressure processing in the molding devices, these biomass products are formed into columnar biomass gas. They are fed right into biomass boilers to produce warm.



2 typical biomass gas.

Usually, biomass molding fuel has 2 kinds-- biomass briquettes as well as timber pellet fuel. rdf pellet machine of biomass briquettes is more 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 wood pellet mill. Timber pellet fuels progressively replace biomass briquettes owing to high density, vast application and practical making use of. They burns much more completely than biomass briquettes.



Biomass pellet fuel has fiber material of 70%. The sulfur content is much less than coal High thickness makes it hassle-free to shop and transportation. It can be applied in different devices. Biomass pellets burns sufficiently, with less smoke and ash content, and also the combustion speed is 11% greater than coal.



Advantages of wood pellet gas over coal.

Low carbon content: biomass gas has at a lot of 50% carbon content, so the warmth worth is less than coal.

High hydrogen material: biomass fuels has more volatiles, so they are easier to burn. The carbon and hydrogen are integrated right into reduced molecular hydrocarbon, which will separate out volatiles at high temperature.

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

Low density: the thickness of biomass gas is lower than coal. Loosen texture makes it less complicated to stress out. The recurring carbon is lower than coal ash.

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

Low carbon discharge: biomass gas is carbon-neutral, to put it simply, zero carbon discharge

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

Combined shooting: Biomass fuel can be melted together with coal and enhance the combustion effectiveness.



Biomass boiler pollution emission.

Biomass central heating boiler give off small quantity of air contaminants, as well as solid waste that can be reused.




Polluting gases

Biomass gas generates little NOx as well as no Co2. The SO2 exhaust is less than 33.6 mg/m3, as well as the smoke and ash discharge is lower than 46mg/m3. They are much less than the national criterion.



Solid waste

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



By outfitting the biomass boiler with desulfurizing and dirt getting rid of gadget, we can lower the pollutant exhaust to minimum.



Ecological benefits of biomass central heating boiler

To change coal with biomass fuel, we can decrease the contaminant exhaust in environment. At electric wood pellet mill , the web carbon emission of biomass gas is zero, which can alleviate greenhouse effect.



Fostering of biomass gas is an efficient way to use the crop waste. If these plant waste degeneration under all-natural condition, they will generate a great deal of methane, which has greater greenhouse effect. By making them right into gas, we can transform waste right into wealth.



The residual ash after burning can be made use of as potash fertilizer. This way, we attain the power reuse among straw-- fuel-- plant food.


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