ball valve

DZF Series Ball Valves – Innovators in Blast Furnace Pulverized Coal Injection Technology

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

On the straight tuyere of the blast furnace, the DZF-I Ball Valve plays a key role in connecting the coal injection lance and controlling hot gas leakage with its unique design. When the lance penetrates deep into the blast furnace like a warrior, the ball valve quietly opens to allow the pulverized coal air stream to surge in; when the lance withdraws from the "battlefield", it closes rapidly like an impregnable gate, strictly preventing high-temperature gas from leaking out of the furnace. The innovation of this valve lies in its intelligent switching mechanism, which not only ensures the safe and efficient operation of the blast furnace but also demonstrates the wisdom and charm of modern industrial technology.

The DZF-I Ball Valve is not only a practical blast furnace accessory but also a shining pearl in the blast furnace pulverized coal injection equipment. It skillfully integrates the coal injection lance and the lance head, and the spherical pulverized coal atomizing disc at the top of the lance head is the finishing touch. The pulverized coal air stream gathers momentum in the lance, and once it passes through the atomizing disc, it disperses like fine rain, forming an umbrella-shaped atomized pulverized coal stream that instantly blends with the hot air in the blast furnace, achieving full combustion of pulverized coal. This innovative design not only improves the combustion efficiency of pulverized coal but also optimizes the mixing ratio of pulverized coal and hot air, significantly enhancing the production efficiency and environmental performance of the blast furnace.
II. Performance Parameters and Appearance Design
The performance parameters of the DZF-I Ball Valve are also impressive: the nominal pressure is 0.6MPa, the shell test pressure is as high as 0.9MPa, and the seal test pressure reaches 0.66MPa, ensuring the valve's stability and reliability under various harsh working conditions. At the same time, it can withstand temperatures up to 350°C, making it suitable for multiple media such as pulverized coal, water, oil, and dust-containing gas, meeting the diverse needs of blast furnace coal injection systems.
In terms of appearance design, the DZF-I Ball Valve is concise and elegant with smooth lines, which not only meets the aesthetic standards of modern industry but also is easy to install and maintain. Its connection dimensions are precise, ensuring seamless docking with equipment such as the coal injection lance, providing strong support for the continuous and stable operation of the blast furnace.
III. DZF-II Ball Valve: The Perfect Combination of Innovation and Inheritance
Following the DZF-I Ball Valve, the DZF-II Ball Valve came into being. It inherits the excellent genes of the former and has been innovated and upgraded on this basis. Compared with 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 has wider applicability and can better adapt to the needs of different blast furnace coal injection systems.

In terms of connection method, the DZF-II Ball Valve adopts a quick-install chuck 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 from the inner hole of the quick-install chuck seat of the ball valve, the internal balls are quickly pushed up to achieve rapid connection; when the coal injection lance withdraws, the balls automatically close under the action of the pressure in the blast furnace and their own gravity, ensuring that high-temperature gas in the furnace does not leak out. This design not only improves work efficiency but also reduces the failure rate, making the blast furnace coal injection system more stable and reliable.
IV. Ball Valve Series: Diverse Choices and Customized Solutions
In addition to the DZF-I and DZF-II Ball Valves, we also provide ball valves of various shapes for customers to choose from, such as jujube核-shaped, square, and elbow-shaped. These ball valves of different shapes have their own characteristics and can meet the needs of different blast furnace coal injection systems. At the same time, we also provide customized services. Customers can choose steel balls and shells made of carbon steel or stainless steel according to their actual needs, as well as connection dimensions and performance parameters that meet their own requirements.

In the field of blast furnace coal injection, we have accumulated rich production experience and technical strength. All kinds of ball valves we produce have the characteristics of good air tightness, strong pressure resistance, compact structure, low failure rate, and economic practicality. These advantages have made our ball valves widely used and highly praised in domestic iron and steel enterprises.
V. The Leader in Blast Furnace Pulverized Coal Injection Technology
As a leader in domestic blast furnace coal injection technology, we have been committed to technological innovation and product upgrading. Through continuous research and development and improvement, we have realized blast furnace coal injection technology with high coal ratio, uniform injection, and low-cost operation. The successful application of this technology not only improves the production efficiency and environmental performance of the blast furnace but also provides strong support for the sustainable development of domestic iron and steel enterprises.
In the future development, we will continue to uphold the corporate spirit of "Innovation, Pragmatism, Efficiency, Environmental Protection", and continuously promote the progress and development of blast furnace coal injection technology. At the same time, we will also continue to provide high-quality products and services for customers, and work together to create a better tomorrow. Xiangye Environmental Protection Company, walks with you and creates brilliance together!