Notes

Application of biomass central heating boiler and also wood pellet fuel<br>
Under the stress of environmental protection and also power situation, several countries has performed policies to cut exhaust and advertise brand-new power. Under this condition, a growing number of coal-fired central heating boilers have been replaced by, or updated into biomass central heating boiler



Typical coal-fired boilers discharge a great deal of black smoke as well as sulfur gas. Some of them are not geared up with desulfurizer. They will certainly contaminate the bordering locations. To change them with gas and electrical energy needs way too much efforts as well as cost, many coal-fired boiler owner use biomass fuel to replace coal. Thinking about most coal-fired boilers are unfit for biomass fuel, there are specialized biomass gas burning tools to resolve this problem. They are designed based on the characteristics of biomass fuel and also lessen the toxin discharge.



Different types of biomass pellet central heating boiler

Biomass boiler adopts biomass power, generally biomass pellets, as fuel. According to various power media, they can be classified into biomass heavy steam boiler, biomass hot water boiler, biomass hot blast cooktop, biomass thermal oil heating system.



According to their objective, biomass boilers can be categorized into biomass thermal central heating boiler and also biomass electrical power central heating boiler They both produce power by shedding biomass gas. Biomass thermal central heating boiler use thermal power, while biomass electric power boiler turn the thermal power into electrical power. Biomass thermal boiler is still one of the most preferred kind, whose modern technology is mature.



According to the range, biomass thermal boiler can be identified right into 2 kinds.



Small biomass central heating boiler

These boilers uses solid or gasified biomass gas They produce heat in the form of hot water. Little biomass boiler features tiny volume, simple structure, affordable price, however it has low power conversion performance as well as low energy supply. Small biomass central heating boiler is generally for residence heating in rural areas and also warm water supply.



Massive biomass boiler.

These sort of biomass boiler usage strong biomass fuel and provide hot water or steam. The modern technology is mature, the energy supply is high, and the power loss is low. However some biomass boiler has fuel cocking owing to inadequate burning, and also the assistance facility is not perfect.



Basic material for biomass boiler.


Biomass boiler has vast source of basic materials. All photosynthetic plants can be utilized as resources, including sawdust, wood chips, rice husk, sunflower seed covering, sorghum stalk, corn stalk, bean stalk, and so on. By high-heat and high-pressure processing in the molding equipment, these biomass products are built into columnar biomass gas. poultry feed maker machine are fed into biomass boilers to produce warmth.



Two typical biomass gas.

Generally, biomass molding gas has 2 kinds-- biomass briquettes and also timber pellet fuel. 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 diameter. They are made by timber pellet mill. Timber pellet fuels slowly fill in biomass briquettes owing to high density, large application as well as hassle-free utilizing. They burns a lot more completely than biomass briquettes.



Biomass pellet fuel has fiber web content of 70%. The sulfur web content is much lower than coal High density makes it practical to store as well as transportation. It can be applied in different equipment. Biomass pellets burns completely, with less smoke and ash web content, and the combustion rate is 11% more than coal.



Benefits of timber pellet gas over coal.

Low carbon content: biomass gas has at most 50% carbon content, so the warm worth is lower than coal.

High hydrogen material: biomass gas has even more volatiles, so they are less complicated to melt. The carbon and also hydrogen are integrated into low molecular hydrocarbon, which will certainly separate out volatiles at heat.

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

Reduced thickness: the thickness of biomass gas is lower than coal. Loosen up structure makes it less complicated to burn out. plastic pellet maker recurring carbon is lower than coal ash.

Reduced sulfur material: the sulfur content in biomass fuels are less than 0.12%. You do not need to set up desulfurizer device.

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

Waste reuse: the adoption of biomass fuel can make full use wastes, as well as soothe their damage to environment. Besides, the residual ash after shedding can be made use of to produce fertilizer.

Blended firing: Biomass fuel can be burned together with coal as well as enhance the burning efficiency.




Biomass central heating boiler contamination emission.

Biomass central heating boiler produce small quantity of air contaminants, and also strong waste that can be reused.



Polluting gases

Biomass gas generates little NOx and also no carbon dioxide. The SO2 emission is lower than 33.6 mg/m3, and also the smoke as well as ash emission is less than 46mg/m3. They are much lower than the nationwide standard.



Strong waste

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



By gearing up the biomass boiler with desulfurizing and also dust getting rid of device, we can decrease the contaminant emission to minimum.



Environmental benefits of biomass boiler

To change coal with biomass fuel, we can minimize the contaminant exhaust in atmosphere. Meanwhile, the web carbon discharge of biomass fuel is zero, which can relieve greenhouse effect.



Fostering of biomass gas is a reliable way to take advantage of the plant waste. If these plant waste degeneration under natural condition, they will certainly produce a lot of methane, which has higher greenhouse effect. By making them into gas, we can transform waste right into riches.



The recurring ash after shedding can be used as potash plant food. By doing this, we achieve the energy reuse amongst straw-- fuel-- fertilizer.


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