Coal Powder Filter (Pneumatic Conveying Pipeline) DN80 PN16 Technical Parameters and Functions
The coal powder filter is a key equipment in the blast furnace pulverized coal injection system of steel plants or pneumatic conveying pipelines of coal-fired power plants, mainly used to filter large particle impurities in the coal powder to prevent pipeline blockage and equipment wear.
Core Parameters
Nominal Diameter: DN80 (main pipeline inner diameter approximately 80mm)
Nominal Pressure: PN16 (design pressure 1.6MPa)
Material: Carbon steel housing + wear-resistant manganese steel filter plate, some models are lined with wear-resistant ceramics to extend service life.
Connection Method: Flange connection (standard HG/T 20592), facilitating installation and maintenance.

Filtration Area: Large, with low resistance loss; detachable filter plate design facilitates cleaning.
Application Scenarios
Blast Furnace Pulverized Coal Injection System: Filters foreign objects in the coal powder to ensure smooth pneumatic conveying.
Coal-Fired Power Plants: Used in conjunction with cyclone separators to improve fly ash conveying efficiency.
Installation and Maintenance
Installation Orientation:
Liquid Pipelines: Filter screen facing downward;
Gas/Steam Pipelines: Filter screen placed horizontally.

Maintenance Points:
Regularly clean the filter screen with kerosene and air-dry naturally before resetting;
Check the differential pressure gauge and clean accumulated powder in a timely manner.
Supplier Reference
Beijing Lanhao: Provides coal powder filters with DN80 and a length of 640mm, supporting blast furnace pulverized coal injection systems.

Shandong Xiangye: Y-type filters (PN16) of similar specifications can serve as alternative solutions.
For CAD drawings or quotations of specific models, you can further contact Lanhao Environmental Protection.