Ball ValveIn steel production, the interaction between the coal injection lance and the blast furnace is a critical process. When the coal injection lance is retracted from the blast furnace tuyere, the ball valve installed on it automatically closes, driven by the internal steel ball. Under the combined action of the blast furnace internal pressure and its own gravity, the steel ball effectively prevents the leakage of high-temperature gas from the furnace. This precise design of the ball valve is not only safe and reliable but also offers significant practical value.

       Our company's Type -3 ball valve offers multiple advantages. Both the steel ball and the sealing seat are detachable, facilitating daily inspection, replacement, and maintenance. Additionally, the steel ball and housing can be made from high-quality materials such as carbon steel or stainless steel, depending on user requirements. This demonstrates that our ball valves consider both practicality and personalized user needs in material selection.
       In terms of shape, the drawing shows a date-pit-shaped ball valve. In fact, there are two main types of ball valves: date-pit-shaped and square-shaped. Both types are widely used in the coal injection systems of blast furnaces in domestic steel enterprises. They are installed on the blast furnace blowpipe to connect the coal injection lance. When the lance is inserted into the blast furnace, the ball valve automatically opens; when the lance is retracted from the tuyere, the ball valve automatically closes to ensure no leakage of hot gas from the furnace.

        In addition to ball valves, we are committed to technological innovation in blast furnace pulverized coal injection equipment. Particularly noteworthy is the design of the arc-swirl spray wheel. Our technical solution includes the coal injection pipe and lance tip, which together form the arc-swirl spray lance for blast furnace pulverized coal injection. The top of the lance tip is equipped with a spherical pulverized coal atomization disk, with a gap between the disk and the end of the lance pipe for the flow of pulverized coal氣流. This design allows the pulverized coal氣流 to be分流 by the atomization disk and ejected in an umbrella-shaped pattern, forming atomized pulverized coal streams. These fine streams can quickly mix with the blast furnace hot air, thereby improving the combustion rate of the pulverized coal.
       This technical solution features a reasonable structure and ease of use, and it can enhance the combustion rate of pulverized coal as well as the mixing ratio with blast furnace hot air. Furthermore, our key performance parameters, such as nominal pressure, shell test pressure, seal test pressure, applicable temperature, and applicable media, have clear specifications. For example, the applicable temperature is 350 degrees, and it is suitable for working environments involving pulverized coal, water, oil, and dust-containing gases.

       Our company, Lanhao Environmental Protection, has years of production experience in the field of blast furnace coal injection. The various ball valves we produce, whether standard or non-standard, feature excellent air tightness, strong pressure resistance, compact structure, low failure rate, and economic practicality. We continuously explore and innovate to achieve blast furnace coal injection technology with high coal ratio, uniform injection, and low-cost operation.
       In summary, our ball valves and blast furnace pulverized coal injection equipment reflect our company's technical strength and production experience. We are committed to providing the highest quality products and services to meet the needs of steel production. Whether date-pit-shaped or square-shaped, our ball valves play a key role in blast furnace coal injection systems, ensuring the safety and efficiency of steel production.