Generally, pulverized coal distributors can be categorized by shape into bottle-type, ball-type, disc-type, cone-type (elevated-angle type), bent branch pipe type, and others. Based on the material of the branch pipes, they are classified into wear-resistant alloy type and wear-resistant ceramic type, among others. With the gradual increase in the coal injection ratio of blast furnaces in major ironmaking plants, the operational capacity of coal injection distributors faces severe challenges. To address this challenge, our company has promptly carried out technical transformations and process improvements to ensure that our coal injection distributors maintain their industry-leading position.
Xiangye pulverized coal distributors are indispensable equipment in ironmaking coal injection systems. Their types include elevated-angle type, bottle-type, and disc-type pulverized coal distributors, each suitable for specific working conditions.
I. YFPQ Elevated-Angle Type Pulverized Coal Distributor
This distributor is specifically designed for single-pipeline pulverized coal conveying systems in ironmaking coal injection. It enables uniform distribution of pulverized coal for multi-pipe injection at the furnace front. The outlet pipe diameter can be selected from 6 to 35 pipes, with three specifications available: 15, 20, and 25. It supports both flange and threaded connections, providing reliable assurance for smooth coal powder conveyance.

II. PFPQ Bottle-Type Pulverized Coal Distributor
Although not described in detail, this bottle-type pulverized coal distributor can be imagined to offer stable performance and high efficiency, playing a crucial role under specific working conditions.

III. PSFPQ Disc-Type Pulverized Coal Distributor

Product Description and Structural Features: The PSFPQ disc-type pulverized coal distributor is a key equipment in blast furnace coal injection systems for the average distribution and conveyance of pulverized coal. Our newly developed distributor not only incorporates the advantages of various previous types but also integrates advanced foreign technologies. It features a conical design and has effectively replaced older bottle-type, disc-type, and ball-type distributors. Traditional bottle-type and disc-type distributors typically have horizontally distributed branch pipes. However, in coal injection systems, the conveyance of pulverized coal by airflow under certain pressure causes significant wear on the equipment. Previous distributors suffered from various issues, such as throat structures leading to high resistance, unreasonable internal cavity designs causing pulsation during coal powder passage, unstable coal injection volumes, uneven distribution, and severe equipment wear.

Our new pulverized coal distributor was designed with a clear understanding of these issues and addresses them effectively. The product consists of a main pipe, a body (including cone-type, disc-type, and bottle-type designs), and various branch pipes uniformly distributed above the body. The cone-type design features branch pipes arranged at elevated angles (such as 90 or 120 degrees), with coal injection branch pipes (e.g., 8, 10, or 12 pipes) evenly distributed around the upper part of the distributor body. The lower end of the distributor connects to one end of the main coal conveying pipe, while the upper branch pipes connect to individual pulverized coal lances.

      This product is manufactured from carbon steel structural components with precise processing and high geometric accuracy. The conical inner cavity has a simple structure, small volume, lightweight, and is easy to maintain. The inner cavity is ingeniously designed, with the total outlet area of the branch pipes being similar to the inlet channel area. When a high-pressure solid-gas flow enters the inner cavity, it forms a strong vortex that tightly envelops the pulverized coal and evenly distributes it to each branch pipe. This design minimizes pulsation during conveyance, ensuring stable and reliable injection that fully meets the user's desired flow requirements. More importantly, the coal powder flows through the distributor without swirling or pulsation, guaranteeing precise and stable coal injection.
      Under the precise control of our distributor, the accuracy of coal injection volume at each tuyere can reach ±3% of the large injection volume, ensuring uniform combustion in the raceway around the blast furnace hearth. The fluid velocity in the pulverized coal distributor matches that in the pipeline, resulting in minimal wear and a long service life. Additionally, this coal injection distributor has no throat structure, reducing resistance loss and avoiding issues such as throat clogging and decreased distribution accuracy due to uneven throat wear.
It is worth mentioning that our pulverized coal distributor has broad applicability. It is suitable not only for pulverized coal conveying systems under various gas-solid ratios in blast furnace coal injection systems but also for dilute-phase and dense-phase conveying. As specialized equipment for blast furnace coal injection systems, pulverized coal distributors are irregular structural components with complex manufacturing processes and high technical requirements. However, with advanced technology and meticulous processing, we ensure the product's quality and performance.
      In summary, our pulverized coal distributor, with its outstanding performance and stability, provides reliable support for blast furnace coal injection systems and is an indispensable key equipment in the ironmaking industry.