Operating conditions of the pulverized coal distributor

The pulverized coal distributor in steel mills is the core equipment of the blast furnace coal injection system, used to evenly distribute dry pulverized coal conveyed through a single pipeline to multiple injection pipes, ensuring the stability and uniformity of coal injection at the blast furnace tuyeres.
Pipe Diameter and Number of Branches: Inlet pipe diameter DN50-DN125, branch pipe diameter 15/20/25mm, number of branches 6-35 pipes.

Working Conditions:
Pressure range: 1.6-2.5MPa; Temperature ≤80℃; Only applicable to dry pulverized coal medium.
Wear-Resistant Design: Ceramic-lined or tungsten carbide-coated branches to extend service life.
Precision Control: Distribution error ≤±3%, ensuring uniform combustion at the blast furnace tuyeres.

Application Scenarios
Suitable for pneumatic conveying systems in blast furnace coal injection in steel mills, power plants, pharmaceutical factories, and flour mills, addressing uneven distribution caused by coal powder inertial segregation.
Precautions
Cone-type distributors, due to their lack of a throat structure and stable flow velocity, significantly reduce the risk of clogging and are superior to traditional ball-type designs. Selection should be based on pipe diameter, number of branches, and wear resistance requirements.
The above comprehensive information is derived from mainstream industry technical documents and Shandong Jinglan specifications. Actual selection should be based on working condition parameters.