SDN filter thickener
First generation
Main feature
· Single-end fixed socket installation of PE sintered filter element
· Dead-end filtration principle
· The filter element flux is small, and the filter element is generally double-layer
· Positive pressure clearing
Main advantages
1. Large-scale application in the industry
2. The replacement cost of filter element is low
To be upgraded and improved
1. Difficulty in installation and maintenance
2. The accuracy is not enough, and the unstable flux decays quickly
3. The running liquid level of double-layer filter element is high
Main process
No intermediate kettle
Reaction kettle → Feed pump → Generation 1 → Reaction kettle
There is an intermediate kettle
Reaction kettle → Intermediate kettle → Feed pump → Generation 1 → Reaction kettle
Introduction to filter elements of SDN thickener
01 Productive process
Industrial high purity metal powder as raw material, by high pressure pressing, high temperature sintering production. Joints are welded with inert gas protection without any adhesive.
02 Material characteristics
a) It is the first to prepare membrane materials by Kirkendall effect caused by partial diffusion between elements;
b) Reaction synthesis technology can realize precise regulation of pore structure at micron/submicron level, uniform pore size distribution of materials, high filtration accuracy, high open porosity, small tortuosity factor and small filtration resistance;
c) The unique mixed bond crystal form of "metal bond + covalent bond" combines the advantages of metal and ceramic materials, and has excellent chemical stability, thermal stability, mechanical and physical properties, machinability, thermal conductivity and electrical conductivity;
d) Material preparation process, environmental protection, friendly life cycle, recyclable and cost-effective.
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