DZF Series Ball Valve – The Innovator in Blast Furnace Pulverized Coal Injection Technology

I. DZF-I Ball Valve: The Guardian of Blast Furnace Hot Gas

On the blast furnace tuyere, the DZF-I ball valve plays a critical role with its unique design, connecting the coal injection lance and controlling hot gas leakage. When the lance penetrates deep into the furnace like a warrior, the ball valve quietly opens, allowing the pulverized coal airflow to rush in; when the lance is withdrawn, it swiftly closes like an impenetrable gate, strictly preventing the leakage of high-temperature gas inside the furnace. The innovation of this valve lies in its intelligent switching mechanism, which not only ensures the safety and efficiency of blast furnace operations but also showcases the wisdom and appeal of modern industrial technology.

The DZF-I ball valve is not only a practical blast furnace accessory but also a shining gem in pulverized coal injection equipment. It skillfully combines the lance pipe and the lance tip, with the spherical pulverized coal atomization disk at the top of the lance tip being the finishing touch. The pulverized coal airflow gathers momentum in the lance pipe and, once passing through the atomization disk, disperses like fine rain, forming an umbrella-shaped atomized coal flow that instantly mixes with the hot air inside the furnace, achieving full combustion of the coal. This innovative design not only enhances the combustion efficiency of the coal but also optimizes the mixing ratio of coal and hot air, significantly improving the production efficiency and environmental performance of the blast furnace.
II. Performance Parameters and Design
The performance parameters of the DZF-I ball valve are equally impressive: a nominal pressure of 0.6MPa, a shell test pressure of up to 0.9MPa, and a seal test pressure of 0.66MPa, ensuring the valve's stability and reliability under various harsh working conditions. At the same time, it can withstand temperatures as high as 350 degrees Celsius and is suitable for various media such as pulverized coal, water, oil, and dust-laden gas, meeting the diverse needs of blast furnace pulverized coal injection systems.
In terms of design, the DZF-I ball valve is simple and elegant, with smooth lines that not only meet the aesthetic standards of modern industry but also facilitate installation and maintenance. Its connection dimensions are precise, ensuring seamless integration with equipment such as coal injection lances, providing strong support for the continuous and stable operation of the blast furnace.
III. DZF-II Ball Valve: The Perfect Combination of Innovation and Heritage
Following the DZF-I ball valve, the DZF-II ball valve was developed, inheriting the excellent genes of its predecessor and undergoing innovative upgrades. Compared to the DZF-I, the DZF-II ball valve has a more compact structure, stronger air tightness, and better pressure resistance. At the same time, it offers broader applicability, better adapting to the needs of different blast furnace pulverized coal injection systems.

In terms of connection, the DZF-II ball valve adopts a quick-connect coupling design, making the connection between the coal injection lance and the valve more convenient and efficient. When the coal injection lance is inserted into the blast furnace tuyere through the quick-connect coupling seat, the internal balls are quickly lifted to achieve rapid connection; when the lance is withdrawn, the balls automatically close under the pressure inside the furnace and their own gravity, ensuring no leakage of high-temperature gas. This design not only improves work efficiency but also reduces the failure rate, making the blast furnace pulverized coal injection system more stable and reliable.
IV. Ball Valve Series: Diverse Choices, Customized Solutions
In addition to the DZF-I and DZF-II ball valves, we offer a variety of ball valve shapes for customers to choose from, such as date-pit shape, square, and elbow type. These different shapes of ball valves each have their own characteristics and can meet the needs of various blast furnace pulverized coal injection systems. At the same time, we provide customized services, allowing customers to choose carbon steel or stainless steel balls and shells, as well as connection dimensions and performance parameters that meet their specific requirements.

In the field of blast furnace pulverized coal injection, we have accumulated rich production experience and technical strength. All our ball valves feature excellent air tightness, strong pressure resistance, compact structure, low failure rate, and cost-effectiveness. These advantages have made our ball valves widely used and highly praised in domestic steel enterprises.
V. The Leader in Blast Furnace Pulverized Coal Injection Technology
As a leader in domestic blast furnace pulverized coal injection technology, we are committed to technological innovation and product upgrades. Through continuous research and development and improvement, we have achieved blast furnace pulverized coal injection technology with high coal ratio, uniform injection, and low-cost operation. The successful application of this technology has not only improved the production efficiency and environmental performance of blast furnaces but also provided strong support for the sustainable development of domestic steel enterprises.
In the future, we will continue to uphold the corporate spirit of "innovation, pragmatism, efficiency, and environmental protection," constantly promoting the progress and development of blast furnace pulverized coal injection technology. At the same time, we will continue to provide customers with high-quality products and services, working together to create a brighter tomorrow. Xiangye Environmental Protection Company, walking with you, creating brilliance together!