The pulverized coal flow control valve, also known as pulverized coal angle valve, is installed between the pulverized coal feeding tank and the gasification furnace in pulverized coal gasification process units such as shell, GSP, HT-L, and CHOR, and is a key device for control the flow of pulverized coal entering the gasification furnace and accurately controlling the oxygen-coal ratio in the gasification furnace. This flow control valve in pneumatic valves and controls system has the performance that directly to the realization of safe and long-term stable operation of the gasification furnace.
Size: From DN50 up to DN80
Body material: Carbon steel, Stainless steel
Trim materials: Stainless steel (std.)
End connections: Flanged
Max rating: ANSI 900
The medium transported by the pulverized coal control valve is solid pulverized coal particles with a certain hardness and takes high-pressure nitrogen or carbon dioxide as a carrier, and is a gas-solid two way flow control valve. As the concentration of the pulverized coal in the medium is higher, a larger chance of the concentration of the pulverized coal is easily caused in the adjusting process, the pulverized coal is easily accumulated, bridged, and blocked so that the flow is unstable, and the pulverized coal is easily leaked and combusted. When the in line flow control valve works, high-speed moving pulverized coal particles cause great scouring to the group valve, so that the pulverized coal flow is unstable or even the adjustment is invalid, and the motorized flow control valve is required to have comprehensive performances of high-pressure resistance, scouring resistance, abrasion resistance, stable flow regulation, and other comprehensive performance.
Main Parts of PA Series Pulverized Coal Flow Regulating Valve
| 1 Entrance End Caps | 2 Valve Seat Assembly | 3 Valve Spool | 4 Valve Stem Assembly | 5 Valve Housing Assembly |
| 6 Export Scour-Resistant Pipes | 7 Valve Cover Assembly | 8 Inner Bushing | 9 Stuffing Box | 10 Packing Box |
Material
| Parts Name | Valve Housing | Trim | Bellows | Sealing Parts | Fastener |
| Material | A216 WCB | A182 F316+WC | 316Ti | A193 B7/A194 2H | |
| A351 CF8M | 321 | PTFE | A193 B8M/A194 8 | ||
| A182 F316 | 316L | Graphite | |||
| A105 |
For special material requirements, please contact our sales department.
Improved Combustion Efficiency: By precisely controlling coal flow, these valves help maintain optimal combustion conditions.
Enhanced Safety: Proper flow control reduces the risk of combustion instability and associated safety hazards.
Reduced Emissions: Consistent coal flow helps achieve better combustion, leading to lower emissions of pollutants.
Operational Reliability: These valves are designed to handle the abrasive nature of pulverized coal, ensuring long-term reliable operation.
Pulverized coal flow control valves are primarily used in:
Power Generation: In coal-fired power plants to regulate coal flow to burners.
Cement Manufacturing: For controlling the coal feed to rotary kilns.
Steel Production: In blast furnaces and other coal-consuming processes.
