What are the emission standards of some biomass hot air furnaces for you? Firstly, biomass hot blast stove is mainly waste wheat straw, which will emit emissions again after combustion. As a new environmental protection equipment, it can not produce re-pollution. According to the Ministry of Environmental Protection's Reply to the Questions Concerning Biomass Briquette Fuel, gas hot blast stove has great influence on biomass briquette fuel during combustion process. Strict standards for air pollution emission are put forward: "Gas emission standards should be used to require" biomass briquette fuel to reduce air pollution as much as possible. 1、气体排放标准
1. Gas emission standards
According to expert analysis, the biomass fuel hot blast stove can achieve zero CO2 emission, micro-emission of NOx, SO2 emission less than 33.6 mg/m3, and smoke emission less than 46 mg/m3. Compared with coal-fired and oil-fired hot blast stoves, its pollution index is very low. According to the national emission control index of air pollutants, the emission standard of hot-blast stove is SO2 < 100mg/m3, and the smoke and dust of gas hot-blast stove < 100mg/m3. Therefore, the emission standard of biomass hot-blast stove meets the control index, and the emission concentration is far below the national standard.
2. Solid emissions
In addition to discharging gases, the biomass hot blast stove also discharges solids, the main component of which is ash after combustion. Fuel contains about 70% fiber content, less than 1/10 of carbon content, sulfur and chlorine content are less than 0.07%, nitrogen content is less than 0.5%, so the solid ash content is relatively low, which meets the national emission standards.
3. A single power generation hot-blast stove with over 65 t/h output using biomass fuels such as bagasse, sawdust and bark, and a gas-fired hot-blast stove shall be implemented in accordance with the requirements for pollutant control of the thermal power generation hot-blast stove for comprehensive utilization of resources stipulated in the Emission Standard of Atmospheric Pollutants for Thermal Power Plants (GB13223-2003).
4. The maximum allowable emission concentration of air pollutants from a coal-fired hot-blast stove with a single output of 65 t/h or less, which uses biomass fuels such as bagasse, sawdust and bark, is executed in accordance with the "Standard for Discharge of Air Pollutants from Hot-blast Stove" (GB13271-2001).
5, local emission standards should be implemented if there are local emission standards and are strictly national standards.
6. On the premise of meeting the emission standards of our country, the emission limits of pollutants from gas-fired hot-blast stoves should meet the design and operation requirements of pollution control facilities for imported equipment.
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