Stainless steel melt filter cartridges are specially designed for filtering high-temperature, high-pressure, and high-viscosity media.
They are widely used in chemical fiber, petrochemical, food, and pharmaceutical industries.
Using stainless steel fiber sintered felt or multi-layer sintered mesh as the core filtration material,
they achieve efficient separation and retention of impurities in the melt through a unique porous structure.
http://www.zhongbangfilter.com/116.html
The filter media is typically made by laying stainless steel fibers into a web and sintering at high temperature, or by sintering and laminating multiple layers of stainless steel wire mesh.
Pore Structure: Gradually graded from outer coarse pores to inner fine pores.
Porosity: Ranges from 60% to 85%, ensuring large flow capacity and high contaminant holding capacity.
Strength: Supported by a stainless steel framework to resist deformation under high pressure.
The filtration mechanism combines surface filtration, depth filtration, and gradient filtration.
Surface Filtration
When the melt flows through the outer layer, particles larger than the pore size are blocked on the surface, forming the first barrier. This effectively traps large contaminants and prevents them from entering the inner structure.
Depth Filtration
Smaller particles pass into the inner layers, where they encounter an interwoven “maze” of metal fibers or mesh layers. Through sieving effect, inertial impaction, and diffusion deposition, fine contaminants are gradually captured along the flow path.
Gradient Filtration
The pore size decreases progressively from the outer layer to the inner layer. The outer layer intercepts large particles, the middle layer traps medium-sized particles, and the inner layer captures ultra-fine particles.
This staged filtration improves filtration efficiency, extends service life, and reduces the rate of pressure drop increase.
High Temperature Resistance: Operates stably at temperatures up to 300°C or higher, ideal for melt and steam filtration.
Corrosion Resistance: Withstands acids, alkalis, and a wide range of organic solvents.
Reusable: Can be cleaned and regenerated via backflushing, reverse washing, or ultrasonic cleaning.
High Mechanical Strength: Maintains integrity under high pressure and high-velocity fluid impacts.
Melt filtration in the chemical fiber industry (polyester, nylon, polypropylene, etc.)
High-temperature medium purification and catalyst recovery in petrochemicals
High-temperature liquid and steam filtration in food and pharmaceuticals
Hydraulic oil and lubricant purification in metallurgy
