25um Sintered Red Copper Porous Filter for High-temperature Flue Gas Dust Removal
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China [CN] 25um Sintered Red Copper Porous Filter for High-temperature Flue Gas Dust Removal
TOPTITECH's 25um Sintered Red Copper Porous Filter for High-temperature Flue Gas Dust Removal is engineered for extreme-duty gas-solid separation. The monolithic porous structure, fabricated via high-temperature sintering of high-purity red copper powder, guarantees consistent 25-micron filtration precision and a 20mm wall thickness that delivers exceptional mechanical strength and thermal mass. Its inherent three-dimensional interconnected pores provide high dust-holding capacity and stable, low-pressure drop, while the superior thermal conductivity of red copper ensures rapid heat dissipation, effectively mitigating thermal stress and preventing filter cracking during rapid temperature cycles or direct exposure to flue gas streams up to 350°C.
TOPTITECH's 25um Sintered Red Copper Porous Filter for High-temperature Flue Gas Dust Removal enables direct, in-line installation in high-temperature applications such as biomass syngas purification, waste incineration flue gas treatment, and metal smelting fume recovery, eliminating the need for complex and energy-intensive cooling systems. This filter demonstrates excellent resistance to thermal fatigue and acid corrosion in non-oxidizing atmospheres, ensuring long service life in harsh environments. Its robust construction supports high-pressure pulse-jet cleaning for efficient regeneration, making it a critical, low-maintenance component for advanced emission control, particulate matter (PM) reduction, and valuable catalyst or precious metal dust recovery in sustainable industrial processes.
Specifications
Material: Red copper
Pore size: 25um
Diameter: 100mm
Wall thickness: 20mm
Length: 410mm
Technique: Sintering
Features
Superior High-Temperature Stability & Thermal Management
The 25μm Sintered Red Copper Porous Filter leverages the inherent high thermal conductivity of red copper (≈400 W/m·K) for exceptional performance in temperatures up to 350°C. Its monolithic 20mm-thick sintered structure ensures uniform heat distribution, effectively dissipating thermal energy and resisting thermal shock during rapid temperature cycling or filter regeneration. This intrinsic property prevents filter element deformation and cracking, guaranteeing dimensional stability and reliability in direct high-temperature flue gas applications such as biomass gasification or waste incineration, without requiring upstream gas cooling.
Precise and Durable Filtration Mechanics
Engineered via controlled powder sintering, this filter delivers consistent 25-micron absolute filtration precision with a three-dimensional interconnected pore network. The robust 20mm wall thickness provides high mechanical crush strength (>3 MPa) and erosion resistance against abrasive particulate matter. This construction ensures high dust-loading capacity, stable long-term pressure drop, and excellent resistance to pressure pulsations within the system.
Enhanced Operational Efficiency & Service Life
The filter's optimized porous matrix and material properties directly translate to lower operational costs. Its surface filtration characteristics promote efficient dust cake release, enabling highly effective high-pressure pulse-jet cleaning with minimal residual blinding. Combined with red copper's good resistance to corrosion in non-oxidizing acidic flue gas environments, these features maximize the number of regeneration cycles, significantly extending service life and reducing maintenance frequency and downtime.
Direct Integration for Process Intensification
This filter enables process simplification by permitting direct in-line installation into hot gas streams. It eliminates the efficiency losses, energy penalties, and capital cost associated with indirect cooling systems (e.g., heat exchangers) for gas conditioning. This design is ideal for advanced emission control, PM2.5/PM10 reduction, and recovery of valuable metal oxides or catalyst dust in applications from sintering furnace off-gases to syngas purification.
Applications in High-temperature Flue Gas Dust Removal
Direct Hot-Gas Filtration in Waste-to-Energy Plants
This filter operates directly within the 250-350°C flue gas stream downstream of the boiler economizer. It captures fly ash, unburned carbon particulates, and heavy metal aerosols before the gas enters the acidic gas scrubbing system. Its thermal shock resistance handles rapid temperature fluctuations during plant startup, shutdown, or soot-blowing events. The filter's efficient surface filtration allows reliable high-pressure pulse-jet cleaning, maintaining stable system backpressure and enabling continuous compliance with stringent particulate emission limits (e.g., for PM2.5) without requiring a costly gas cooling tower.
Syngas Purification in Biomass Gasification and Pyrolysis
Installed in the raw syngas line post-gasifier, the filter removes char, bed material fines, and tarry aerosols from the hot producer gas (typically 300-600°C). Its 25-micron rating provides essential protection for downstream catalysts in reforming or synthesis processes and sensitive equipment like gas turbines or compressors. The filter's robust construction withstands the abrasive nature of biomass ash, and its material compatibility prevents catalytic poisoning, ensuring high-purity syngas for renewable energy or chemical production.
Metal Fume Recovery and Air Quality Control in Non-Ferrous Metal Smelting
The filter is deployed for dedusting exhaust streams from electric arc furnaces, converters, or refining processes. It effectively traps fine metal oxide fumes (e.g., zinc oxide, lead oxide) and submicron particulates from the high-temperature off-gas. This application serves dual purposes: it controls airborne emissions to meet environmental standards and facilitates the direct recovery of valuable metal compounds from the collected filter cake, turning an operational necessity into a resource recovery loop.
Process Gas Cleaning in Industrial Kilns and Calciners
In cement kiln preheaters, lime calcination furnaces, or ceramic sintering kilns, this filter cleans the high-temperature exhaust. It captures process dust and unreacted feedstock, allowing cleaner waste heat to be recirculated back into the process for improved thermal efficiency or safely passed through a heat recovery boiler. Its durability is critical for handling the highly alkaline and abrasive dust loads typical in these industries.
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