Standard Hot Gas Cleaning Filter

Saifilter Standard Hot Gas Cleaning Filters are composite structure porous Gasification Filters prepared using the principle of solid-phase particle sintering. The filter media comprises micron-sized metal powder and a single-layer metal mesh. It has a low initial pressure drop and a high flow rate. The standard structure of standard hot gas cleaning filters is that one end is closed, and the other is open. The flange is welded at the open end for easy installation and fixation.

The Saifilter standard hot gas cleaning filters are manufactured using a fully welded process to ensure reliability under continuous high temperatures. The end flange and mounting plate are achieved with graphite composite gaskets to prevent the bypassing of synthetic gas. Saifilter can be customized to integrate with your specific production equipment or to create entirely original design filter elements to meet special requirements.


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 (℃)

Biomass Gasification Filters Element Installation


The workers are installing new hot gas metal filter elements


Workers fix the compression rod to the hot gas metal filter cartridge through bolts while ensuring that the sealing gasket is locked. To prevent air leakage bypass.


Hot Gas Sintered Metal Filters Installed on Site For Waste Incineration Projects


Installation position of metal filter bag


Determine the optimal installation position for metal filter bags 


Installation inspection of ceramic fiber sealing washers 


Before starting the system, ensure that there are no loose components or installation defects.


  • Maximum operating 450 °C
  • 2 times dust removal capacity compared with bag filters.
  • Corrosion resistance, can withstand corrosive gases.
  • Metal structure offers great abrasion resistance.
  • Good electrical conductivity
  • Good performance and easy machining performance


  • High permeability contributes to the process flow and backflushing operation
  • High overall strength at high temperatures
  • Able to withstand high-temperature transient conditions
  • Corrosion-resistant alloy options
  • Extended lifespan


  • Cement
  • Steel
  • Metallurgy
  • Glass Kiln
  • Waste Incineration

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A Standard Hot Gas Cleaning Filter is a device used in various industries to remove contaminants like dust, particulates, and other impurities from hot gas streams. It works by forcing the hot gas through a filter medium, which can be composed of materials like ceramic, metal, or other composite materials, trapping the particles and allowing the clean gas to pass through. The efficiency of these filters depends on factors such as filter material, temperature, and the characteristics of the gas and contaminants.

These filters find applications in a range of industries where hot gases need to be cleaned before further processing or emission. Some common sectors where they are utilized include:

Power generation plants - for cleaning flue gases before emission.

Chemical and petrochemical industries - to remove impurities before chemical reactions or processes.

Cement production - to capture dust and particles from kiln gases.

Metal production - to clean gases in furnaces and smelting processes.

Waste incineration plants - for removing contaminants from gases produced during the incineration process.

Using a Standard Hot Gas Cleaning Filter can offer several benefits, including:

Environmental Compliance: Helps in meeting environmental regulations by reducing the emission of pollutants.

Improved Product Quality: By removing impurities, it can enhance the quality of the final products in various industrial processes.

Increased Equipment Lifespan: Protects downstream equipment from damage or fouling due to contaminants, thereby increasing their lifespan and efficiency.

Energy Efficiency: Helps in recovering valuable materials and energy from the gas stream, thus promoting energy efficiency.

Cost-Efficiency: Reduces maintenance and operational costs by preventing the accumulation of contaminants in the system.

Maintenance of a Standard Hot Gas Cleaning Filter generally involves the following steps:

Regular Inspection: Frequently inspect the filter for signs of wear, tear, or damage.

Cleaning and Replacement: Depending on the type of filter and the nature of impurities, the filter medium may need to be cleaned or replaced at regular intervals to maintain its efficiency.

Monitoring: Constant monitoring of pressure drop across the filter to detect any potential issues early.

Professional Service: Seeking professional service for the maintenance and repair of the filter system to ensure optimal performance.

Compliance with Manufacturer Guidelines: Following the maintenance guidelines provided by the manufacturer to enhance the lifespan and efficiency of the filter.

Gas Composition: Understand the composition of the gas stream to choose the appropriate filter material and design.

Temperature: Consider the temperature of the gas stream, as different materials have varying temperature resistances.

Particle Size and Concentration: Evaluate the size and concentration of particles in the gas stream to select the right filter medium.

Pressure Drop: Consider the acceptable pressure drop across the filter to ensure it meets the operational requirements.

Budget and Availability: Evaluate the budget and the availability of replacement parts to ensure a cost-effective and sustainable solution.


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