In April 2019, the Ministry of Ecology and Environment demanded that all steel mills in the country gradually undergo transformation to significantly reduce emissions. Both national and local governments have imposed strict air pollution control requirements on the coking industry, which faces a severe situation of atmospheric emission reduction. Technological and equipment upgrades, as well as environmental protection improvements, are urgently needed. Many companies are encountering headaches when selecting flue gas valve equipment. The market offers a wide variety of flue gas valves, with varying degrees of insulation and sealing capabilities. However, most suffer from issues such as poor sealing, internal leakage, external leakage, and inoperable switches that are prone to sticking, leading to a short service life.

The function of the flue valve is to isolate the flow of smoke gases, and it can also be used in other flue and air duct systems with high requirements for operational isolation. The flue valve demands very strict sealing, necessitating a gas tightness of over 99%. Beyond sealing issues, there is also the problem of sticky operation when opening and closing, particularly in butterfly-style flue valves. These valves, due to their long-term placement within the flue, are subject to both corrosion from the smoke gases and deformation in high-temperature environments, leading to sticky operation. Therefore, it is necessary to address this issue and ideally develop a flue valve that operates smoothly without sticking and does not corrode the flue baffles. To solve such problems, Zsongsheng Environmental Protection has developed an electric-hydraulic sliding plate flue valve. This valve is driven by electric-hydraulic power, offering flexible operation and stable performance; when the flue valve is open, the baffles are outside the flue, avoiding long-term corrosion and high-temperature deformation, thereby extending its service life.

With the enhancement of emission standards in non-electrical fields and increased enforcement efforts, the market for dust removal, desulfurization, and denitrification in the steel and coking industries is experiencing rapid growth. The competition in the steel and coking flue gas treatment industry is sure to intensify in the future, with a myriad of technologies and numerous enterprises facing the test of practice and the baptism of the market, leading to a process of natural selection. At the same time, the entire industry will gradually move towards a more standardized and high-quality development path. Amidst the increasingly severe environmental situation, Zhongsheng Environmental Protection is willing to unite with all sectors of society to shoulder the social and historical responsibilities and promote the progress of human civilization.