Notes

Application of biomass boiler and also timber pellet gas<br>
Under the pressure of environmental management as well as energy situation, several nations has actually executed policies to cut discharge and also promote new energy. Under this problem, a growing number of coal-fired central heating boilers have been changed by, or updated right into biomass boiler



Standard coal-fired boilers send out a lot of black smoke and also sulfur gas. Richi machinery of them are not geared up with desulfurizer. They will contaminate the bordering areas. To change them with gas and power calls for way too much efforts and expense, numerous coal-fired central heating boiler owner use biomass gas to replace coal. Thinking about most coal-fired boilers are unfit for biomass fuel, there are customized biomass fuel burning devices to resolve this trouble. They are made based on the features of biomass gas as well as reduce the toxin emission.



Different kinds of biomass pellet central heating boiler

Biomass central heating boiler embraces biomass power, usually biomass pellets, as fuel. According to different power media, they can be identified into biomass vapor central heating boiler, biomass hot water central heating boiler, biomass hot blast range, biomass thermal oil heating system.



According to their objective, biomass central heating boilers can be categorized into biomass thermal boiler and biomass electrical power central heating boiler They both generate power by shedding biomass fuels. Biomass thermal central heating boiler use thermal energy, while biomass electrical power boiler transform the thermal power right into electric power. Biomass thermal central heating boiler is still the most popular type, whose technology is fully grown.



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



Tiny biomass boiler

These central heating boilers makes use of strong or gasified biomass fuels They produce warm in the form of warm water. Small biomass central heating boiler features tiny volume, simple structure, small cost, but it has reduced power conversion efficiency and reduced power supply. Tiny biomass boiler is mainly for house heating in rural areas and hot water supply.



Large biomass boiler.

These type of biomass central heating boiler use solid biomass gas as well as offer hot water or steam. The modern technology is fully grown, the energy supply is high, and the power loss is low. But some biomass boiler has gas cocking owing to not enough burning, and the support facility is not perfect.



Basic material for biomass central heating boiler.

Biomass boiler has vast source of resources. All photosynthetic plants can be made use of as basic materials, consisting of sawdust, wood chips, rice husk, sunflower seed covering, sorghum stalk, corn stalk, bean stalk, and so on. By high-heat and high-pressure handling in the molding equipment, these biomass materials are built right into columnar biomass fuel. They are fed right into biomass central heating boilers to create heat.



2 usual biomass fuels.

Generally, biomass molding fuel has 2 types-- biomass briquettes and also 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 size. They are made by timber pellet mill. Wood pellet gas progressively take the place of biomass briquettes owing to high thickness, broad application and also hassle-free utilizing. richi pellet mill than biomass briquettes.



Biomass pellet fuel has fiber content of 70%. The sulfur content is much lower than coal High thickness makes it practical to shop as well as transport. It can be used in various tools. Biomass pellets burns completely, with less smoke and also ash content, as well as the combustion rate is 11% more than coal.



Advantages of timber pellet fuel over coal.

Low carbon material: biomass fuels contends the majority of 50% carbon material, so the warmth worth is less than coal.

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

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


Low thickness: the thickness of biomass gas is lower than coal. Loosen texture makes it easier to wear out. The residual carbon is less than coal ash.


Reduced sulfur content: the sulfur material in biomass fuels are less than 0.12%. You don't need to mount desulfurizer device.

Reduced carbon discharge: biomass gas is carbon-neutral, to put it simply, no carbon emission

Waste recycle: the adoption of biomass gas can make complete use wastes, and also relieve their damage to atmosphere. Besides, the recurring ash after burning can be made use of to create plant food.

Mixed shooting: Biomass gas can be shed along with coal as well as boost the combustion effectiveness.



Biomass boiler pollution emission.

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



Contaminating gases

Biomass gas produces little NOx and no Co2. The SO2 emission is less than 33.6 mg/m3, and the smoke and also ash emission is less than 46mg/m3. They are far less than the national criterion.



Solid waste

The main solid waste of biomass boiler is ash. They can be recycled by made right into potash plant food.



By outfitting the biomass boiler with desulfurizing and also dirt getting rid of tool, we can decrease the toxin emission to minimum.



Ecological benefits of biomass boiler

To change coal with biomass gas, we can lower the contaminant exhaust in environment. At the same time, the net carbon discharge of biomass gas is absolutely no, which can relieve pollution.



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



The recurring ash after melting can be made use of as potash fertilizer. In this way, we accomplish the power recycle amongst straw-- fuel-- plant food.


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