With the increasingly stringent environmental regulations, aluminum plants need to take measures to reduce the emission of pollutants in order to comply with national or local emission standards.
In the production process of solid waste, gas pollutants, greenhouse gases, in the smelting process need to pay attention to the treatment and control of these pollutants, in order to reduce the impact on the environment and ecology. The red mud produced in the production process of aluminum nitride, the carbon slag and aluminum ash produced in the production process of electrolytic aluminum all require special treatment. The aluminum slag produced in the process of melting and casting is effectively treated, and a roller is used to grind and screen repeatedly to recover some aluminum beans. Reduce the slag slope of the mixing furnace to ensure that the aluminum slag can be fully removed from the oven and reduce the loss of aluminum. Strictly control the slag quality to prevent liquid aluminum from being taken out, resulting in resource waste.
In the smelting process, aluminum will produce fluoride, if not completely burned, the combustion process will produce dioxin pollutants, after combustion produce a large number of gas pollutants and a large number of soot, which will have a great impact on the environment. In the production process of electrolytic aluminum will also produce a lot of carbon dioxide, which is a powerful greenhouse gas. Therefore, it is necessary to reduce the generation of exhaust gas by optimizing the production process, providing the utilization rate of raw materials, and using advanced emission reduction technologies. The full implementation of the SCR denitrification system can reduce nitrogen oxide emissions and achieve near-zero emissions.
The SCR denitrification system of Guangdong GRVNES Environmental Protection Technology Co., Ltd. realizes the functions of compact structure design, intelligent, precise injection, forecasting alarm, data collection management, remote control, online transmission and other functions in the field of ultra-low emission of nitrogen oxides, meeting the national environmental requirements, ultra-low emission of nitrogen oxides and ammonia escape less than 3PPm. In the smelting furnace work project will produce high temperature flue gas, some flue gas away a lot of heat, through low nitrogen transformation, can effectively recover these heat, reduce energy waste, through technical transformation, can effectively improve the thermal efficiency of the melting furnace, speed up the melting process, improve production efficiency, reduce operating costs, reduce energy consumption.
SCR denitration system adopts patented mixing technology to ensure the full mixing of ammonia and flue gas to achieve near-zero emission of nitrogen oxides. Through the implementation of low nitrogen transformation, enterprises can not only respond to the needs of environmental protection, enhance corporate image and enhance social reputation, but also enhance the competitiveness of enterprises to achieve sustainable development and effectively reduce the emission of pollutants. Improve energy efficiency, reduce energy consumption, bring double benefits for the enterprise economy and environment.
Example application project introduction: Low nitrogen transformation project of a 10-ton furnace in Guangxi Province, China
Emission index: NOx decreased from 500mg/Nm3 to 100mg/Nm3
Post time: Feb-28-2024