Notes

Application of biomass boiler and also timber pellet gas<br>
Under the pressure of environmental protection and energy situation, many nations has performed plans to cut discharge and advertise brand-new power. Under this condition, an increasing number of coal-fired central heating boilers have been replaced by, or upgraded right into biomass central heating boiler



Standard coal-fired boilers release a lot of black smoke and sulfur gas. A few of them are not equipped with desulfurizer. They will certainly pollute the surrounding locations. To change them with gas and electrical power requires way too much efforts and also price, a lot of coal-fired central heating boiler proprietor usage biomass fuel to change coal. Taking into used pellet machine for sale -fired boilers are unsuited for biomass gas, there are specialized biomass fuel burning gadgets to fix this issue. They are developed based upon the features of biomass gas as well as minimize the pollutant emission.



Various sorts of biomass pellet central heating boiler

Biomass boiler adopts biomass power, usually biomass pellets, as fuel. According to various energy media, they can be identified into biomass vapor central heating boiler, biomass hot water central heating boiler, biomass hot blast oven, biomass thermal oil heating system.



According to their function, biomass boilers can be identified into biomass thermal central heating boiler and also biomass electric power boiler They both create power by melting biomass fuels. Biomass thermal central heating boiler use thermal energy, while biomass electric power boiler transform the thermal power right into electrical power. Biomass thermal central heating boiler is still the most popular type, whose modern technology is mature.



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



Tiny biomass central heating boiler

These central heating boilers utilizes solid or gasified biomass gas They produce warmth in the form of warm water. Small biomass central heating boiler features little volume, simple structure, low price, but it has reduced power conversion performance as well as low power supply. Tiny biomass boiler is primarily for residence heating in rural areas and hot water supply.



Large-scale biomass boiler.

These kind of biomass boiler use strong biomass gas and also give hot water or steam. The technology is mature, the power supply is high, and the power loss is low. However some biomass central heating boiler has fuel cocking owing to insufficient burning, and also the assistance center is not ideal.



Raw materials for biomass boiler.

Biomass central heating boiler has large source of resources. All photosynthetic plants can be used as resources, including sawdust, wood 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 molded right into columnar biomass gas. They are fed right into biomass central heating boilers to create heat.



2 usual biomass fuels.

Typically, biomass molding fuel has 2 kinds-- biomass briquettes and also timber pellet fuel. richi pellet mill of biomass briquettes is greater 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 wood pellet mill. Wood pellet fuels gradually fill in biomass briquettes owing to high thickness, vast application and also convenient using. They burns much more completely than biomass briquettes.



Biomass pellet fuel has fiber material of 70%. The sulfur web content is much less than coal High density makes it hassle-free to shop and transport. It can be applied in different devices. Biomass pellets burns adequately, with much less smoke and ash content, as well as the combustion rate is 11% higher than coal.



Advantages of wood pellet fuel over coal.

Reduced carbon content: biomass fuels has at the majority of 50% carbon material, so the warmth worth is less than coal.

High hydrogen web content: biomass fuels has even more volatiles, so they are simpler to melt. The carbon and hydrogen are incorporated into low molecular hydrocarbon, which will certainly separate out volatiles at high temperature.

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

Low density: the thickness of biomass gas is lower than coal. Loosen up texture makes it much easier to burn out. The residual carbon is lower than coal ash.

Low sulfur content: the sulfur content in biomass gas are less than 0.12%. You don't need to mount desulfurizer tool.

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

Waste recycle: the fostering of biomass fuel can make full use wastes, and also relieve their damages to setting. Besides, the residual ash after shedding can be made use of to generate plant food.

Blended firing: Biomass gas can be melted along with coal and also enhance the burning efficiency.



Biomass boiler contamination emission.


Biomass boiler emit small quantity of air contaminants, and solid waste that can be reused.



Contaminating gases


Biomass fuel generates little NOx as well as no carbon dioxide. The SO2 exhaust is lower than 33.6 mg/m3, as well as the smoke and ash exhaust is less than 46mg/m3. They are far less than the national requirement.



Solid waste

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



By furnishing the biomass boiler with desulfurizing and also dirt eliminating tool, we can reduce the contaminant emission to minimum.



Ecological advantages of biomass boiler

To replace coal with biomass fuel, we can minimize the toxin discharge in ambience. On the other hand, the web carbon discharge of biomass gas is no, which can eliminate pollution.



Adoption of biomass fuel is an effective way to utilize the plant waste. If these crop waste degeneration under natural problem, they will certainly produce a great deal of methane, which has higher pollution. By making them into fuel, we can transform waste right into riches.



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


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