Lanhao Pulverized Coal Filter (Dedicated for Blast Furnace Coal Injection) Technical Parameters (DN80×640mm)
I. Core Specifications
Parameter Value Remarks
Nominal Diameter DN80 Compatible with blast furnace coal injection main pipeline
Length 640mm Includes flange connection sections at both ends
Design Pressure ≤1.6MPa Complies with GB/T 12238 standard

Filtration Precision ≥120 mesh Can intercept particles ≥0.12mm
Operating Temperature ≤80℃ Withstands instantaneous high temperatures up to 120℃
II. Structural Features
Dual Cone Design
Utilizes butt-welded conical structure, improving coarse particle settling efficiency by 60% compared to straight pipe design.
Wear Resistance Enhancement
Carbon steel base lined with ceramic layer (Mohs hardness ≥9), lifespan up to 3 times that of ordinary filter screens.

Quick-Disassembly Filter Plate
Removable filter plate design, reducing maintenance time to 30 minutes.
III. Application Scenarios
Blast Furnace Coal Injection System: Effectively filters impurities such as wood chips and fibers in pulverized coal, preventing distributor clogging.
Pneumatic Conveying: Compatible with 0.3-0.5MPa compressed air, flow loss ≤8%.

IV. Installation Requirements
Horizontal Installation
The angle between the cone axis and the horizontal plane must be ≤5° to avoid powder accumulation.
Pressure Monitoring
Recommended to install differential pressure gauges (range 0-0.1MPa) at the inlet and outlet.