Glass melting kilns are widely used in industrial production, including not limited to architectural glass, automotive glass, electronic glass and other industrial uses. Glass melting kiln is the core equipment in the glass production process, responsible for melting raw materials into uniform glass liquid, which includes various types of glass manufacturing, such as flat glass, daily glass, glass fiber and so on. Glass melting kiln plays a vital role in the field of glass and related industries, and its application range is wide, involving all aspects of glass production and the manufacturing process of a variety of glass products.
While glass melting kiln brings us many glass products, it also produces various flue gas pollution in the production process. Pollutants such as nitrogen oxides (NOx), sulfur oxides (SOx) and dust will be produced in the production process of glass melting kilns. These pollutants are potentially harmful to the environment and human health. NOx and SOx can lead to the formation of acid rain and photochemical smog, while dust can affect air quality and the respiratory system. There are three main ways to produce NOx in the flue gas of glass melting kiln, including the high-temperature decomposition of raw materials in the melting process, the reaction of combustion-supporting oxygen with the furnace fuel, and the reaction of N₂ in the air at high temperature. NOx is an important precursor to the formation of ground-level ozone and fine particulate matter (PM2.5), which poses a threat to the environment and human health.
Selective catalytic reduction SCR technology is the most widely used and most mature denitrification technology at present. It uses a certain catalyst and temperature to reduce NOx in ammonia or urea and flue gas, converting NOx into N₂ and H₂O. Green Valley Environmental Protection’s SCR denitrification technology, combined with patented mixing technology, can ensure the full mixing of ammonia and flue gas, so as to achieve near-zero emission of nitrogen oxides, precise metering injection technology, to cope with load changes under the condition of stable standard emissions, closed loop and open loop control modular packaging technology, to ensure the airtightness of the reactor, the use of Internet of Things technology, to achieve multiple types of terminal remote control; Has a professional technical team, with CFD, ANSYS modeling capabilities, can provide effective meta simulation experiments. SCR denitrification catalyst can meet various flue gas working conditions, denitrification efficiency can reach more than 95% denitrification activity efficiency.
Medium and high temperature SCR denitration technology is still the mainstream technology of glass melting kiln flue gas denitration in China. With the development of technology, the new integrated technology of desulfurization and denitrification will become the development direction of denitrification technology of glass melting kiln. In the future, glass production enterprises should choose the appropriate denitrification technology according to the specific production process, fuel use, flue gas emission characteristics and environmental protection policy requirements to achieve ultra-low emission of flue gas.
Post time: Dec-11-2024