PQ-2000 Coal Injection Tool: The Soul of Blast Furnace Combustion
       The PQ-2000 blast furnace pulverized coal lance, like a miniature magic wand, serves blast furnace coal injection with its exquisite technology. Its structure is simple yet sophisticated, mainly composed of the lance tube, lance head jacket, multi-hole lance head, and lance head cap. Each component is meticulously designed for effortless operation.

      The uniqueness of this "coal injection tool" lies in its multi-hole lance head. At the tip of the pulverized coal lance tube, multiple round holes are evenly distributed, cleverly dividing the coal powder airflow into several fine streams. These streams rapidly mix and fully combust upon contact with the blast furnace's hot air, significantly improving coal utilization efficiency, making it a reliable assistant in blast furnace operation.

      During operation, this lance functions like a precise scalpel, quickly and accurately inserting into the blast furnace to begin work. When coal injection is required, it promptly sprays pulverized coal to meet production demands; when temporarily not needed, its ball valve automatically resets to prevent high-temperature gas leakage, ensuring production safety.
      Although the PQ-2000 lance boasts high reliability and stability, it may still suffer damage in unexpected situations. The reasons behind this are varied, ranging from system malfunctions or improper operation to the complex and dynamic internal environment of the blast furnace. For instance, burn-throughs in the blowpipe may result from issues like tuyere coking, system blockages, or hot air backflow, or from operational errors such as failing to replenish air and retract the lance promptly during shutdown or excessive backpressure.

       However, when facing lance damage, we should not blindly question its quality. Through careful inspection and analysis, we can gain deeper insights into the causes and patterns of damage. The traces of burn-throughs and melting are not just evidence of damage but also clues for exploring and resolving issues. Every pit and melt hole may conceal stories within the blast furnace, highlighting the importance of operation and maintenance.
       Therefore, while relying on the exceptional performance of the PQ-2000 lance, we must also pay close attention to its condition and conduct regular inspections and maintenance. Only then can we ensure this "coal injection tool" maximizes its role in the blast furnace, safeguarding its operation.