Selection of transfer pumps for solid catalysts
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The last edit to this post was made by foam_ZPTK on 2018-3-27 at 16:25. Which pump should be used for transporting materials containing 30-40% solid catalyst, with catalyst particles of 150 microns in size?
For non-hard particles, an open impeller + wear-resistant plate + a rotation speed of 1500 rpm can be chosen~~~ For hard particles, only a slurry pump made of high-grade cast iron + a rotation speed of 1500 rpm or lower is an option~~~
When delivering the catalyst mixture, the flow rate should not be high; an electric diaphragm pump can be used for this purpose. Remember to fill the mixing tank with pure water again after pumping to clean it.
For hard particles, like SiO2, ceramic pumps, I guess
Use a wear-resistant mechanical seal, an open impeller, low speed, and a slurry pump or metal slurry pump
A metering pump can be used; the choice depends on the properties of the particles. For particles that are relatively soft and have low corrosivity, a plunger metering pump is an option, while for metal catalysts, a remote pump head can be considered.
Are there parameters such as pressure and flow rate? Electric piston diaphragm pumps are suitable for applications with high solid content and high pressure
I tried it; it works. My material contains organic solvents, and the mechanical seal is damaged