Guangdong Green Valley Environmental Protection Technology Co., Ltd. leads innovation: to achieve ultra-low emissions of cold-rolled silicon steel annealing furnace and promote green production upgrading

Release time:

2024-04-19

As a high-tech enterprise focusing on the research and development of environmental protection technology and equipment, Guangdong Green Valley Environmental Protection Technology Co., Ltd. has recently reached cooperation with a branch of an international engineering group to provide advanced selective catalytic reduction (SCR denitrification) equipment to jointly promote the green development of the steel industry.

Under the background of global environmental protection, the environmental transformation of industrial enterprises is particularly important. As a high-tech enterprise focusing on the research and development of environmental protection technology and equipment, Guangdong Green Valley Environmental Protection Technology Co., Ltd. has recently reached cooperation with a branch of an international engineering group to provide advanced selective catalytic reduction (SCR denitrification) equipment to jointly promote the green development of the steel industry.

1. Project background

The company is the a certain country branch of an international engineering group, with the ability of turnkey engineering package from design, manufacturing, construction management, operation and commissioning. Especially in the field of steel and glass, we provide advanced technology and reliable performance heat treatment furnace solutions for enterprises with related needs in China and even around the world.

The production process of cold-rolled silicon steel is more complex, including oxygen converter melting, hot rolling, normalizing, cold rolling, intermediate annealing and secondary cold rolling steps, and the surface of the final product is also coated with an insulating layer. However, cold-rolled silicon steel annealing furnace is the key equipment in the cold-rolled silicon steel production process, its main function is to heat treat the cold-rolled silicon steel plate to improve its magnetic and mechanical properties. Cold-rolled silicon steel annealing furnaces involve high temperature heating in the production process, which may use combustion gases such as natural gas or other fuels that, when burned, produce nitrogen oxides (NOx), a major atmospheric pollutant that is potentially harmful to both the environment and human health. The company has been adhering to the concept of sustainable development, reducing the environmental impact of the production process. In the process of cold rolling silicon steel, the original emission of nitrogen oxide (NOx) in the annealing furnace reaches 180mg/Nm³, which is a problem that cannot be ignored. In order to comply with increasingly stringent environmental regulations, the company decided to introduce Green Valley environmentally friendly and efficient denitrification technology to reduce NOx emissions and improve environmentally friendly production levels.

2. Introduction of SCR denitration technology for GRVNES

SCR denitrification technology of Guangdong Green Valley Environmental Protection Technology Co., Ltd. is one of the highly efficient NOx emission reduction technologies recognized at home and abroad. The technology reduces NOx to pollution-free nitrogen (N2) and water (H2O) under a certain temperature and catalysis, thus significantly reducing NOx emissions. The company's SCR denitrification equipment's intelligent system, precise injection, data acquisition management, remote control and other technical features, while achieving ultra-low emissions, but also to ensure that ammonia escape data is less than 3ppm, with high efficiency, strong stability, low operating costs, can meet the company's high standards for environmental protection equipment requirements.

3. Annealing furnace flue gas denitrification project site

Cold rolled silicon steel annealing furnace low nitrogen transformation site

4. Project results

SCR denitration system from GRVNES

The nox retrofit project implemented by GRVNES for the company achieved significant results, reducing the original nox emissions from 180mg/Nm³ to the ultra-low emission standard of 15mg/Nm³. The implementation of this renovation project not only reflects GRVNES 'professional strength in the field of environmental technology, but also demonstrates its commitment and responsibility to environmental protection.

5. Future outlook

GRVNES was able to work with the company to create an outstanding demonstration of the deep integration of environmental technology and the metal industry. Through the joint efforts of both sides, it can not only effectively reduce pollutant emissions, but also improve the quality of the environment, and contribute to promoting the green development of the metal industry and realizing the global environmental protection goals. We hope that this cooperation can become a model of environmental transformation in the metal industry and the entire industrial field, leading more enterprises to embark on the road of green and sustainable development.

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