Notes

Application of biomass boiler and wood pellet fuel<br>
Under the stress of environmental management and also power crisis, lots of nations has executed policies to reduce exhaust and also advertise new energy. Under this problem, an increasing number of coal-fired central heating boilers have been changed by, or upgraded right into biomass boiler



Conventional coal-fired boilers discharge a lot of black smoke as well as sulfur gas. A few of them are not outfitted with desulfurizer. They will pollute the surrounding areas. To change them with gas as well as power calls for too much efforts and expense, so many coal-fired central heating boiler owner use biomass gas to change coal. Considering most coal-fired central heating boilers are unsuited for biomass fuel, there are customized biomass gas burning tools to fix this problem. They are designed based upon the features of biomass gas and also reduce the contaminant emission.



Various kinds of biomass pellet boiler

Biomass boiler takes on biomass power, normally biomass pellets, as fuel. According to various energy media, they can be categorized right into biomass steam central heating boiler, biomass warm water central heating boiler, biomass warm blast cooktop, biomass thermal oil heater.



According to their function, biomass boilers can be identified right into biomass thermal boiler and biomass electric power central heating boiler They both produce power by melting biomass gas. Biomass thermal central heating boiler use thermal power, while biomass electric power boiler turn the thermal power right into electrical power. Biomass thermal boiler is still one of the most popular kind, whose modern technology is fully grown.



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



Small biomass central heating boiler

These boilers makes use of solid or gasified biomass fuels They generate heat in the form of hot water. Little biomass boiler includes small volume, easy structure, low price, yet it has reduced energy conversion efficiency as well as reduced power supply. Little biomass boiler is mostly for home heating in backwoods and also warm water supply.



Large biomass boiler.

These type of biomass central heating boiler use solid biomass fuel and supply warm water or vapor. The modern technology is mature, the energy supply is high, as well as the energy loss is low. But some biomass boiler has gas cocking owing to inadequate burning, and also the support center is not ideal.




Resources for biomass central heating boiler.

Biomass boiler has broad resource of resources. All photosynthetic plants can be utilized as basic materials, consisting of sawdust, wood chips, rice husk, sunflower seed shell, sorghum stalk, corn stalk, bean stalk, and so on. By high-heat and high-pressure handling in the molding tools, these biomass materials are formed into columnar biomass gas. richi pellet mill are fed into biomass central heating boilers to generate heat.



Two common biomass fuels.

Typically, biomass molding fuel has 2 kinds-- biomass briquettes and also wood pellet gas. The size 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. Timber pellet fuels gradually fill in biomass briquettes owing to high thickness, vast application as well as convenient utilizing. They burns more sufficiently than biomass briquettes.



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



Benefits of wood pellet gas over coal.

Reduced carbon web content: biomass gas contends the majority of 50% carbon content, so the heat value is lower than coal.

High hydrogen material: biomass gas has more volatiles, so they are much easier to melt. floating feed machine price and also hydrogen are combined right into low molecular hydrocarbon, which will separate out volatiles at heat.

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

Low density: the thickness of biomass gas is lower than coal. Loosen appearance makes it simpler to wear out. The residual carbon is lower than coal ash.

Reduced sulfur content: the sulfur web content in biomass gas are less than 0.12%. You do not need to set up desulfurizer tool.

Low carbon discharge: biomass fuel is carbon-neutral, to put it simply, absolutely no carbon exhaust


Waste recycle: the fostering of biomass gas can make full use wastes, and alleviate their damages to setting. Besides, the recurring ash after melting can be made use of to generate fertilizer.

Blended firing: Biomass gas can be melted together with coal as well as improve the combustion effectiveness.



Biomass boiler contamination exhaust.

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



Contaminating gases

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



Solid waste

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



By furnishing the biomass boiler with desulfurizing and dirt removing gadget, we can decrease the contaminant emission to minimum.



Ecological benefits of biomass central heating boiler

To replace coal with biomass fuel, we can reduce the pollutant emission in ambience. On the other hand, the web carbon exhaust of biomass gas is absolutely no, which can alleviate greenhouse effect.



Adoption of biomass gas is an efficient way to use the crop waste. If these plant waste decay under all-natural problem, they will certainly create a great deal of methane, which has higher greenhouse effect. By making them into gas, we can transform waste right into riches.



The recurring ash after burning can be made use of as potash fertilizer. By doing this, we achieve the power reuse amongst straw-- fuel-- fertilizer.


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