Where are filter presses used in non-ferrous metal smelting?
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Where in non-ferrous metal processing are filter presses needed, especially diaphragm filter presses? I hope experts can give me some advice! Thank you!
Leaching, chemical precipitation for impurity removal, wastewater treatment. The scope is too broad; it would be better for you to draw a circle around a specific area, such as nickel smelting, copper smelting, or something else. Otherwise, it’s really hard to answer.
The question is too general; it can be applied in too many situations. It can generally be used wherever solid-liquid separation is required. Leaching, impurity removal, purification, wastewater treatment – there are too many steps involved.
As a supplementary note, many places that previously used filter presses have now switched to other methods. For example, using a centrifuge requires less space, features a high degree of automation, and also achieves a high dehydration rate.
I’m gathering some information; let’s start with the smelting of copper. Please give me your advice!
Filter presses have a very wide range of applications; they are used wherever solid-liquid separation is required. It is used in the subsequent treatment of electrolytes in copper smelting (comprehensive recovery of rare metals), wastewater treatment, and more.
Alumina industry: filter pressing of red mud, evaporation of sodium carbonate for separation (some processes have now switched to centrifuges). Coal: When washing clean coal or washed blended coal. These are all things I have seen; generally, a high solid content is required, but filter presses can be considered when the requirements for suspended solids in the filtrate are not high.
Filter presses can be used wherever solid-liquid separation is required, such as for intermediate and final liquid separation, acid leaching, and the separation of purified liquids from residues. Should it be a plate-and-frame filter press or a box-type filter press?
In copper electrolysis, the main processes involved are the pressure filtration of the electrolyte and the removal of impurities from the waste liquid; essentially, it’s about solid-liquid separation
Diaphragm filter presses are generally used in situations where stricter requirements are placed on the moisture content of the sludge; for ordinary solid-liquid separation tasks where high humidity levels are not a concern, conventional box filter presses are preferred.