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Metal Fiber Sintered Filters
Metal fiber sintered felt is a non-woven filter medium made by selectively laying and compressing fine metal fibers together ,then it is sintered at a certain temperature through a vacuum sintering process and forms a uniform filtration medium with high porosity through sintering and bonding. Its main characteristics include
Metal Fiber Sintered Filters Structural features:
It has a three-dimensional reticulated porous structure with high porosity (typically 50%- 80%),large surface area and uniform pore. Stainless steel sintered fiber felts have pore gradients formed by different pore size , So it can meet extremely high filtration precision and larger dirt-holding capacity.
Metal Fiber Sintered Filters Material properties:
Common metal fiber material include stainless steel (e.g., 316L), nickel-based alloys, titanium, etc.
High-temperaturer : Common stainless steel can be used for at 480°C.But Ferric chromium aluminum materials can withstand temperatures up to 1200°C.
Strong corrosionre: against acids, alkalis, organic solvents, etc.
High filtration precision: filter rating from 1μ to 100μ
Low pressure drop: high porosity and excellent permeability lead to it has a largeflow rate, slow pressure, and a long replacement cycle .
Easy to process and clean: can be cut, bent, welded, and easy to clean by online or offline .
Functional advantage: It has good filtration performance, air permeability, thermal conductivity, and mechanical strength.
Metal fiber sintered filter elements can be processed into the following forms according to the customized requirements :
Pleated type: The filtration area is enlarge by pleating, it is suitable for high-flow .
Cylindrical type: Itsf iltration area is smaller than pleated type, but it is easy to clean . And we can add the support mesh into two sides in order to enlarge strength .
As shown below :
Application field :
Polymer filtration
Polyester, polyamide, polyaramid, polypropylene, polyethylene, polycarbonate, polyacrylonitrile and other polymers
Liquid/solid filtration :
Chemicals, hydraulic, lubricant and fuel oil filters, inkjet printers, pharmaceuticals, food and beverage, petrochemical processing, etc
Gas/liquid filtration:
Refining and oil processing, chemical production, ore smelting, cement and steel manufacturing, coal , etc
Waster water treatment：
Seawater desalination, wastewater and sewage purification treatment
Dust removal with high temperature:
flue gas filtration, coal process of gas filtration, powder process filtration, fluid catalytic cracking, catalyst recovery.
Usage and Maintenance of Metal Fiber Sintered Filters
1.Precautions for use
Prohibit to use beyond the recommended temperature. Follow the material’s temperature resistance limits (e.g., stainless steel fiber felt shouldn’t exceed ≤ 600 。C) to prevent fiber oxidation or structural damage. Control working pressure: Don’t exceed the rated pressure to prevent material deformation or rupture. Filtration direction: Install according to specified direction ( from coarse surface to fine surface) to ensure filtration efficiency.
Metal Fiber Sintered Filters Maintenance Methods
1.Clean: Choose appropriate cleaning methods based on contaminant/impurities, such as back flushing with water, ultrasonic , or cleaning after soaking with neutral detergent (avoid strong acid or alkali corrosion).
2.Inspection: Regularly check whether its surface damage or blockage. It will be repaired or replaced according to damaging .
3.Storage: Clean and dry before storage ,avoid damp environments to prevent rust.
The service life of metal fiber sintered filters
It has no fixed time which mainly depends on the operating environment, working conditions, and maintenance . Typically, the lifespan ranges from several months to several years.
Operating environment: Its lifespan will be short in complex environments (for example: corrosive ,high temperature,or large amounts of hard particle).
Filtration medium:
The damage or blocking of sintered felt is due to the hardness, concentration and particle size of the impurities.
Maintenance : Regular and effective cleaning (such as back-blowing, chemical cleaning, etc.). Cleaning can timely remove blockages, maintain filtration performance, and extend service life.
For example, if we can keep proper maintenance ,the service life can reach 1 to 3 years.But it will be use in harsh conditions,it may only last 3 to 6 months .
Get in Touch forMetal Fiber Sintered Filters
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