Notes

Application of biomass boiler and wood pellet fuel
Application of biomass boiler and wood pellet fuel
Under the stress of environmental protection as well as energy crisis, several nations has actually executed plans to cut discharge and advertise new power. Under this condition, an increasing number of coal-fired central heating boilers have actually been changed by, or updated right into biomass boiler

Standard coal-fired central heating boilers emit a great deal of black smoke and also sulfur gas. A few of them are not equipped with desulfurizer. They will pollute the bordering areas. To change them with gas as well as power calls for too much efforts as well as cost, many coal-fired central heating boiler proprietor usage biomass gas to replace coal. Considering most coal-fired boilers are unsuited for biomass gas, there are specific biomass fuel burning devices to resolve this trouble. They are designed based on the features of biomass fuel as well as reduce the contaminant exhaust.

Different sorts of biomass pellet central heating boiler
Biomass boiler embraces biomass energy, generally biomass pellets, as fuel. According to various power media, they can be classified into biomass vapor central heating boiler, biomass hot water central heating boiler, biomass hot blast cooktop, biomass thermal oil heating system.

According to their objective, biomass central heating boilers can be classified right into biomass thermal boiler and also biomass electric power boiler They both produce power by burning biomass fuels. Biomass thermal central heating boiler usage thermal power, while biomass electrical power boiler turn the thermal power into electric power. Biomass thermal boiler is still one of the most popular kind, whose innovation is mature.

According to the range, biomass thermal central heating boiler can be classified into 2 types.

Little biomass central heating boiler
These central heating boilers uses solid or gasified biomass gas They produce warmth in the form of warm water. Small biomass boiler features tiny volume, basic framework, low price, but it has low energy conversion effectiveness and low energy supply. Small biomass boiler is mainly for home heating in backwoods and warm water supply.

Large-scale biomass boiler.
These sort of biomass central heating boiler use strong biomass fuel and provide hot water or heavy steam. The technology is fully grown, the power supply is high, and the power loss is low. However some biomass boiler has gas cocking owing to not enough burning, and also the assistance facility is not excellent.

Basic material for biomass central heating boiler.
Biomass central heating boiler has broad source of raw materials. All photosynthetic plants can be utilized as raw materials, including sawdust, wood chips, rice husk, sunflower seed shell, sorghum stalk, corn stalk, bean stalk, and so on. By high-heat and also high-pressure processing in the molding tools, these biomass products are formed into columnar biomass fuel. They are fed into biomass boilers to produce warm.

2 usual biomass fuels.
Generally, biomass molding gas has 2 types-- biomass briquettes as well as timber pellet gas. hdpe granules extruder of biomass briquettes is more than 15cm, the diameter is 30-40mm. They are made by biomass briquette press. Wood pellets is 6-8mm in size. They are made by timber pellet mill. Timber pellet fuels gradually fill in biomass briquettes owing to high density, vast application as well as practical making use of. They burns a lot more adequately than biomass briquettes.

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

Benefits of wood pellet fuel over coal.
Reduced carbon web content: biomass gas contends a lot of 50% carbon content, so the warmth worth is lower than coal.
High hydrogen content: biomass gas has even more volatiles, so they are simpler to burn. The carbon and also hydrogen are integrated right into reduced 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 heat worth is low.
Reduced thickness: the density of biomass fuel is less than coal. Loosen up structure makes it simpler to stress out. The residual carbon is lower than coal ash.
Reduced sulfur material: the sulfur web content in biomass fuels are less than 0.12%. You do not need to set up desulfurizer gadget.

Reduced carbon emission: biomass gas is carbon-neutral, simply put, zero carbon exhaust
Waste reuse: the adoption of biomass fuel can make complete use wastes, and soothe their damages to setting. Besides, the residual ash after burning can be made use of to create fertilizer.
Mixed shooting: Biomass gas can be shed together with coal and also improve the burning performance.

Biomass central heating boiler pollution discharge.
Biomass central heating boiler discharge small quantity of air pollutants, and also strong waste that can be reused.

Polluting gases
Biomass gas produces little NOx as well as no Co2. The SO2 discharge is lower than 33.6 mg/m3, and the smoke as well as ash exhaust is lower than 46mg/m3. They are far less than the nationwide standard.

pellet ring die of biomass boiler is ash. They can be recycled by made into potash fertilizer.

By outfitting the biomass boiler with desulfurizing and dust removing tool, we can decrease the contaminant discharge to minimum.

Environmental advantages of biomass central heating boiler
To replace coal with biomass gas, we can reduce the contaminant emission in environment. At the same time, the net carbon emission of biomass fuel is zero, which can soothe greenhouse effect.

Adoption of biomass gas is an effective means to make use of the crop waste. If these crop waste decay under all-natural problem, they will certainly generate a great deal of methane, which has greater pollution. By making them right into fuel, we can transform waste into wide range.

The residual ash after melting can be used as potash plant food. In this way, we accomplish the energy reuse amongst straw-- fuel-- plant food.


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