Strengthened Hot Gas Cleaning Filter

The filtering layer of Saifilter Strengthened Hot Gas Cleaning Filters is made of a composite medium consisting of micrometer-level metal powder and multi-layered metal wire mesh. It features a low-pressure drop and a high flow rate.

The thinner filtering layer, made from these Gasification Filters, reduces the tendency for organic molecules to undergo phase change, lowering the rate of pore blockage caused by phase change and making pulse cleaning easier. The filtering medium is also prepared using the solid-phase particle sintering principle, ensuring better uniformity in pore size.


The standard structure of Saifilter Standard Hot Gas Cleaning Filters uses a core support layer of perforated porous tubes to meet the strength requirements. One end is closed and the other is open. A flange is welded at the open end to facilitate installation and fixation and ensure the sealing of high-temperature synthetic gas.


High-Temperature Capability

MaterialOxidizingReducing or Neutral
SS 316L 400℃(750℉)538℃(1000℉)
SS 310S600℃(1100℉)816℃(1500℉)
Inconel 600 600℃(1100℉)816℃(1500℉)
Hastelloy X789℃(1450℉)926℃(1700℉)

Filtration Mechanism

Metal Micro-Nano Membrane adopts an asymmetric gradient pore structure design, forming a continuous gradient layer structure consisting of micro-nano membrane layer, transition layer, skeleton layer, and air-permeable layer. Among them, the micro-nano membrane layer plays the role of filtration.




SizeAperture    (μm)Filtration  Area  (m²)Air Flow Rate (m3/m².h.KPa)Pressure DropTensile Strength  (Mpa)Working Temperature (℃)

Hot Gas Process Filters Installation layout

SAIFILTER Metal Hot Gas Filter

Horizontal Hold-Down Plate Layout


Cross Hold-Down Plate Layout


Operation Diagram of High-Temperature Hot Gas Filtration Unit


  • Withstand high temperatures ranging from 450 °C to 650 °C.
  • High filtration efficiency
  • High strength, stable structure
  • Make online dust cleaning easier.
  • Excellent resistance to corrosive gases
  • Good thermal shock resistance


  • Interception efficiency exceeds 99.99% for particles as small as 1μm.
  • A fully welded structure capable of withstanding high-pressure differentials.
  • Customizable design options were available.
  • Chemical compatibility.
  • Low-pressure drop effectively reduces system losses.
  • Quick-detach hold-down plate design.


  • Catalyst Recovery
  • Photovoltaic Cell Production
  • Tire Pyrolysis
  • Calcination
  • Chemical Production

Relevant Products

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A Strengthened Hot Gas Cleaning Filter is a high-efficiency filtration system that is designed to remove impurities and contaminants, such as dust, ash, and other particulates, from hot gas streams. Its "strengthened" design indicates that it has enhanced features such as improved material strength, temperature resistance, and extended service life, making it ideal for more rigorous applications, such as in power plants or industrial manufacturing processes.

This type of filter operates by utilizing specialized filter media, which can withstand high temperatures and corrosive environments, to capture and remove particulate matter present in hot gas streams. The hot gas passes through the filter media where the contaminants are captured, allowing only clean gas to pass through. This process ensures a more environmentally friendly and efficient operation by reducing the emissions of pollutants.

The benefits of using a strengthened hot gas cleaning filter include:

Enhanced filtration efficiency, which helps in capturing finer particles.

High-temperature resistance makes it suitable for filtering hot gases without the risk of damage or decreased performance.

Improved lifespan and durability due to robust construction materials.

Reduction in maintenance downtime, as the strengthened design can withstand more demanding conditions, reducing the frequency of replacements or repairs.

Better environmental compliance by facilitating the reduction of harmful emissions into the atmosphere.

The Strengthened Hot Gas Cleaning Filter is commonly used in various industries that involve processes generating hot gases, including:

The power generation industry, where it helps in controlling the emissions from power plants.

Cement manufacturing, to control the dust and other particulates generated during production.

Metal production and processing, where it assists in capturing fumes and other pollutants generated during the manufacturing process.

Chemical and petrochemical industries, to help control the release of pollutants.

Waste incineration plants, help in reducing the emission of harmful substances.

Maintaining a Strengthened Hot Gas Cleaning Filter for optimal performance involves several practices, including:

Regular Inspection: Frequently inspect the filter for signs of wear, damage, or clogging and undertake necessary repairs or replacements.

Cleaning: Depending on the type and design of the filter, periodic cleaning may be necessary to remove accumulated particles and maintain filtration efficiency.

Monitoring: Implement monitoring systems to track the filter's performance and make adjustments as necessary to maintain optimal functioning.

Following Manufacturer Guidelines: Adhere to the manufacturer’s guidelines regarding maintenance schedules and procedures to ensure the longevity and effectiveness of the filter.

Expert Consultation: Consult with experts or technicians for guidance on best practices for maintenance and troubleshooting.


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