Notes

Application of biomass central heating boiler as well as wood pellet gas<br>
Under Richi machine of environmental management as well as energy crisis, several countries has executed policies to cut emission as well as promote new energy. Under this condition, increasingly more coal-fired boilers have been changed by, or upgraded into biomass boiler



Typical coal-fired central heating boilers send out a great deal of black smoke and also sulfur gas. Several of them are not equipped with desulfurizer. They will certainly pollute the bordering locations. To change them with gas and electrical power needs excessive initiatives as well as expense, numerous coal-fired boiler proprietor usage biomass fuel to change coal. Considering most coal-fired boilers are unfit for biomass fuel, there are specific biomass gas burning tools to resolve this problem. They are made based on the characteristics of biomass gas and also reduce the toxin emission.



Different types of biomass pellet boiler

Biomass boiler adopts biomass power, generally biomass pellets, as gas. According to different power media, they can be categorized into biomass vapor boiler, biomass hot water central heating boiler, biomass warm blast cooktop, biomass thermal oil heating system.



According to their objective, biomass boilers can be classified into biomass thermal central heating boiler and biomass electrical power central heating boiler They both create power by shedding biomass gas. Biomass thermal central heating boiler usage thermal energy, while biomass electrical power boiler turn the thermal energy right into electrical power. Biomass thermal central heating boiler is still the most preferred type, whose technology is mature.



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



Tiny biomass central heating boiler

These boilers uses solid or gasified biomass fuels They produce warmth in the form of warm water. Little biomass boiler includes little quantity, basic structure, affordable price, however it has low energy conversion effectiveness and also reduced energy supply. Little biomass central heating boiler is mainly for residence heating in rural areas and hot water supply.



Large biomass central heating boiler.

These kind of biomass boiler use solid biomass gas and also offer warm water or steam. The modern technology is mature, the energy supply is high, as well as the energy loss is low. Yet some biomass boiler has fuel cocking owing to insufficient burning, and the support facility is not ideal.



Resources for biomass boiler.



Biomass central heating boiler has vast source of resources. All photosynthetic plants can be used as basic materials, including sawdust, timber chips, rice husk, sunflower seed covering, sorghum stalk, corn stalk, bean stalk, etc. By high-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 warm.



2 usual biomass gas.

Generally, biomass molding gas has 2 kinds-- biomass briquettes as well as wood pellet gas. The length of biomass briquettes is greater than 15cm, the diameter 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 gas slowly fill in biomass briquettes owing to high thickness, vast application as well as convenient utilizing. They burns much more sufficiently than biomass briquettes.



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



Advantages of timber pellet fuel over coal.

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

High hydrogen web content: biomass fuels has more volatiles, so they are simpler to melt. The carbon as well as hydrogen are incorporated right into low molecular hydrocarbon, which will certainly separate out volatiles at heat.

High oxygen content: biomass fuel has even more oxygen web content than coal, so the warmth value is low.

Low density: the density of biomass fuel is less than coal. Loosen up texture makes it easier to stress out. The recurring carbon is lower than coal ash.

Low sulfur content: the sulfur web content in biomass gas are less than 0.12%. You do not require to install desulfurizer device.

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

Waste recycle: the adoption of biomass fuel can make full use wastes, as well as relieve their damage to setting. Besides, the recurring ash after shedding can be used to create plant food.

Mixed shooting: Biomass fuel can be melted together with coal and boost the combustion efficiency.



Biomass central heating boiler pollution exhaust.

Biomass central heating boiler produce small quantity of air contaminants, as well as solid waste that can be recycled.



Polluting gases

Biomass gas creates little NOx and no carbon dioxide. The SO2 discharge is less than 33.6 mg/m3, and also the smoke and also ash discharge is less than 46mg/m3. They are far less than the nationwide standard.



Strong waste

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



By gearing up the biomass boiler with desulfurizing as well as dirt eliminating gadget, we can reduce the toxin exhaust to minimum.



Ecological advantages of biomass central heating boiler

To replace coal with biomass gas, we can reduce the pollutant emission in atmosphere. At the same time, the web carbon exhaust of biomass fuel is absolutely no, which can ease pollution.



Fostering of biomass gas is a reliable means to utilize the crop waste. If these crop waste degeneration under natural problem, they will certainly generate a lot of methane, which has greater pollution. By making them into fuel, we can transform waste right into wealth.



The recurring ash after melting can be made use of as potash plant food. This way, we attain the power recycle among straw-- gas-- fertilizer.


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