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How to remove dust from domestic waste incineration plant, Smoke from domestic waste incineration plants is an important source of pollution emissions from incineration. Flue gas pollution is mainly composed of soot, SO2, NO2, HCl and dioxins.
How to remove dust from domestic waste incineration plant, The gaseous and solid products produced by municipal solid waste incineration are very complex and contain a variety of polluting components. At present, there are many technologies, processes and equipment that can process and purify waste incineration products to meet the requirements of environmental protection and make it harmful to the environment The impact is controlled at a lower level. But this kind of technology is more complicated, involving a variety of physical chemistry physical mechanical processes, a variety of composite combinations coexist. This complex technology is difficult to develop and master.
How to remove dust from domestic waste incineration plant, The flue gas from the incineration of domestic waste has the following characteristics:
(1) The moisture content of the flue gas is large. This is because the original water content in domestic garbage is high, and some hydrocarbons also generate water vapor during the combustion process. Generally, the water content is between 23% and 30%.
② Because the composition of garbage is complicated, the toxic and harmful components in the smoke and dust generated after combustion are also more complicated, including trace metals such as mercury, phosphorus, lead, aluminum, chromium, nickel, copper ... In addition, the particle size of the resulting particles is also fine and the viscosity is still high.
③ The composition of smoke is complicated. Unlike coal-fired boilers, it contains not only O2, Sox, CO2, NOx, etc., but also acid gases such as HCl, HF, water vapor, and total hydrocarbons (thc). This must be carefully studied and considered when selecting filter materials.
(4) The incineration may also produce highly toxic organic pollutants such as dioxin and tree bark, which are harmful to the human body. Activated carbon is usually sprayed in front of a baghouse for adsorption.
It can be seen that in order to prevent secondary pollution to the environment during the waste incineration process, strict flue gas treatment measures must be taken, and a flue gas purification system is used to control the waste incineration flue gas emissions.
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