Stabilizing and Enhancing Pulverized Coal Injection Technology: A New Chapter in Blast Furnace Ironmaking
On the stage of ironmaking processes, stabilizing and increasing pulverized coal injection has become a crucial pathway to reducing the cost of blast furnace ironmaking. The introduced 2520 heat-resistant steel wear-resistant high-temperature blast furnace pulverized coal ceramic lance acts like a sturdy sword, not only significantly extending the lance's service life but also providing solid protection for the tuyere and reducing blast furnace downtime. This "sword" plays a pivotal role in the realm of high blast furnace wind temperature, oxygen enrichment, and large-volume injection.

I. The Soul of Pulverized Coal Lance Craftsmanship
The lance body, crafted from 2520 heat-resistant steel, resembles an ancient sword—not only robust but also durable, capable of withstanding high temperatures. The innovation within the lance further enhances its performance: advanced ceramic lining technology applied locally to the inner wall of the steel pipe elevates this "sword" to the level of a divine weapon.

II. The Art of Using Pulverized Coal Lances
1. Extended lifespan, like the accumulation of time, reduces replacement frequency, lightens the labor intensity for workers, and heralds a song of efficiency.
2. Stable lance positioning, like a calm general, diminishes the drumbeats of blast furnace downtime, thereby enhancing production rhythm.
3. By stabilizing and increasing pulverized coal injection, the strategy of large-volume injection is realized, akin to the wisdom of a sage, effectively lowering ironmaking costs and composing a brilliant chapter of economic benefits for enterprises.
4. The repairability of pulverized coal lances, like an ageless treasured blade, demonstrates the maximization of resource utilization.
The PQ-2000 blast furnace pulverized coal lance dances gracefully within the blast furnace like a performer. Its structure is simple yet elegant, and its operation is as smooth as flowing water. This lance is harmoniously composed of components such as the lance tube, lance head sleeve, multi-hole lance head, and lance head cap. Its unique design lies in the multi-hole lance head attached to the front of the pulverized coal lance tube, with evenly distributed round holes that divide the coal powder airflow into multiple streams, allowing rapid mixing with the blast furnace hot air and ensuring full combustion of the coal powder. This not only improves coal utilization but also adds a vibrant stroke to the enterprise's green development.

At the production site, this lance is inserted from the end with a notch, moving like a swimming dragon within the furnace body. When the blast furnace requires coal injection, it swiftly and precisely sprays coal powder as if divinely aided. When coal injection stops, the ball valve automatically resets like a guardian, effectively preventing the escape of high-temperature gas and ensuring production safety. Although the pulverized coal lance boasts high stability and reliability, regular inspections and maintenance remain essential, like the harmony of strings and pipes, to ensure its long-term stable performance on the production line.
This series of optimizations and improvements, like a magnificent symphony, has brought revolutionary changes to the blast furnace ironmaking industry. It not only enhances the melody of production efficiency but also composes a greater chapter of economic benefits for enterprises.