How to dehydrate and dry materials with 80% moisture content
Thread Content
How should muddy copper hydroxide (containing 80% water) be dried? Please help and give me some advice!
Consider first dehydrating with a belt filter/vacuum filter/pressure filter and then drying further with a spin dryer. If you can tell what you want to filter, maybe everyone will have good suggestions.
Copper hydroxide is very unstable and easily turns black. I did it in 2007. I added glycerin at that time, but the effect was not very satisfactory. Later, I used another additive, filtered and washed it with an ordinary filter press, and then dried it in a drying room at low temperature!
To what moisture content does copper hydroxide need to be dehydrated and dried? The parameters are more detailed, everyone can help you choose the appropriate method and equipment.
1. Add stabilizer to prevent Cu(OH)2 from discoloring； 2. Use a centrifuge to filter. A three-legged centrifuge can be used depending on the situation. Pay attention to the mesh size of the filter cloth.
I have no requirements on the properties of my copper hydroxide. I mainly want to reduce the moisture content to a minimum. Now it is filtered out using a filter press. But the water content is still as high as 80%. If you use a centrifuge to dry it, how low can the water content be reduced? Is there any equipment that can be operated continuously? ?
suggestion: Centrifuge and dehydrate first, then vacuum dry. Can you send us the process requirements? chxyyd@163.com: Particle size, temperature, discharging requirements, what special requirements does the material have for the process, etc.?
Roasting is the best method. One process can directly smelt refined copper.
Shaft furnace roasting can be used, and waste heat can be recovered from smelting flue gas for drying.
This post was last edited by spark8214 on 2009-12-14 14:42 Use waste heat boilers for drying and make full use of waste heat. achieve dual purposes.
Negative pressure drying. At the same time, dry N2 is introduced at the bottom.