Is the biomass boiler really environmentally friendly?

2019-10-15

Environmental pollution has become a hot topic. With the rapid development of the economy, energy consumption is increasing, and coal-fired boilers emit large amounts of gas. The resulting air pollution is seriously threatening the environment on which humans depend, energy and Climate has also become a worldwide problem. What is more worth mentioning is the smoggy weather that continues to occur in China in recent years.

The main components of smog are sulfur dioxide, nitrogen oxides and respirable particulate matter. Among them, one of the main sources of inhalable particulate matter is the flue gas emitted by coal-fired boilers. At present, there are more than 500,000 industrial boilers in China. The annual coal consumption is about 1/3 of the total coal consumption in the country. The environmental pollution caused by coal-fired industrial boilers is very serious. A large number of industrial boilers must be replaced with clean energy.

The use of biomass boilers can reduce the occurrence of haze and has a positive effect on reducing mites. So, what is a biomass boiler, and what are the advantages of using a biomass boiler?

Biomass boiler is a kind of biomass boiler. The boiler that uses biomass energy as fuel is called biomass environmental boiler. It is divided into biomass steam boiler, biomass hot water boiler, biomass hot air boiler, biomass heat conduction oil furnace. , vertical biomass boilers, horizontal biomass boilers, etc. The fuel of the boiler is BMF fuel, which is made of straw, rice straw, fuelwood, sawdust, peanut shell, melon seed shell, beet pulp, bark and other discarded crops, crushed, mixed, extruded and dried. Granulated fuel. In China, its raw materials are widely distributed and advanced in processing technology. Biomass pellets are known as green coal and are a clean energy source. As a fuel for the boiler, it has a long burning time, and the intensified combustion furnace has a high temperature and is economical.

According to expert analysis, biomass fuel boilers can achieve zero CO2 emissions, NOx emissions, SO2 emissions less than 33.6mg/m3, and soot emissions below 46mg/m3, compared to coal-fired and oil-fired boilers. The index is already very low. According to the national control indicators for atmospheric pollutant emissions, the boiler emission standards are: SO2 ≤ 100mg / m3, smoke ≤ 100mg / m3, so the biomass environmental boiler emission standards meet the control indicators, and the emission concentration is far below the national standards.

In addition to the exhaust gas, the biomass boiler also has a solid discharge, and the main component of the solid is the burned ash. The fuel contains about 70% fiber content, the sulfur content is less than 1/10 of the carbon content, the sulfur sulfur and chlorine content are less than 0.07%, and the nitrogen content is less than 0.5%, so the solid ash content is also relatively low. Therefore, the smog hits the use of biomass environmentally friendly boilers. It is believed that in the near future, more and more industries will use biomass environmentally friendly boilers to join the clean and environmentally friendly industries.

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