The Beijing Lanhao Gas Supplement Regulator (Gas Supplement Device) DN80/DN50 fixed type is a key equipment specifically used for pneumatic conveying of pulverized materials such as pulverized coal in blast furnace injection and fly ash in power plants. The following are the comprehensive technical parameters and application features:
I. Core Parameters
Model Nominal Diameter Design Pressure (MPa) Applicable Medium Material Regulation Method
DN50 50mm 1.0/1.6/2.5 Pulverized Coal + Nitrogen/Air Carbon Steel Lined with Wear-Resistant Ceramic Fixed Type
DN80 80mm 1.0/1.6/2.5 Fly Ash/Cement/Dust Carbon Steel Lined with Wear-Resistant Ceramic Fixed Type

Note: The fixed gas supplement device controls the gas supplement volume through preset air holes, suitable for stable conveying scenarios.
II. Structural Features
Wear-Resistant Design
Adopts carbon steel base + ceramic lining, wear resistance increased by more than 3 times, service life up to 2-3 years.
Dual-Channel Structure

Central pipe conveys powder material, outer annular pipe supplements gas, optimized jet angle achieves uniform mixing.
Flange Connection
DN50/DN80 standard flange (PN25), compatible with conventional pneumatic conveying pipelines.
III. Application Scenarios
Blast Furnace Coal Injection: Dilutes high-concentration pulverized coal to form a stable dense-phase flow.
Power Plant Ash Conveying: Reduces gas consumption for fly ash conveying and decreases pipeline wear.
Cement Plant: Suitable for medium and short-distance conveying of raw meal, mineral powder, etc.

IV. Installation Instructions
Install vertically at the outlet main pipe of the injection tank, distance from elbow ≥5 times pipe diameter.
The gas supplement pipe must be equipped with a pressure reducing valve, pressure controlled at 0.2-0.4MPa.
For adjustable gas supplement devices, refer to the threaded adjustment structure designed by Lanhao.