Experience In Some Solutions
Dears,
I have seen some solutions such as squeezing or vibrating cake on vacuum belt filters to reduce moisture even up to 0.1% by using hot air.
is there anyone who has experience using these methods to reduce moisture content from 12% to 8%? ■
More Information
attached you can see a film of iron ore concentrate with high moisture content
Attachments
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One Idea
what is your idea about dewatering by freezing?
is there anyone have experience about dewatering by freezing?
what is the minimum moisture content it can reach? ■
Lamiflo Drying May Be The Answer
We have just dried zinc ferrites from 30% down to less than 20% at 150 tonnes per hour.
www.lfpumping.com ■
Reducing Moisture Content
I assume that the iron ore concentrate is already ground to pellet grade fineness and has 12% moisture after filtering.
What kind of filter has been used to bring the moisture content to 12%?
If iron ore has limonite / goethite content, it is not possible to reduce moisture to 8% with vacuum filters. A pressure filter may reduce the moisture to ~9%. And this moisture content may be enough for forming green balls as dry additives will be blended in.
A drum dryer may be necessary to reduce moisture to ~8% from 12%. ■
Lowest Energy Consumption
thanks for your attention.
1- vacuum drum filter use for dewatering iron ore concentrate and they couldn't reach moisture content below 9.5%. product moisture content vary from 9.5% to 12%.
2-iron ore concentrate produced from another company and we can not change their drum filter to press filter. Meanwhile as I know press filter is more expensive and complicated in maintenance which is not valuable for changing drum filters to press filters, isn't it?
what is your idea about squeezing on belt filter? it can reduce moisture from 12%?
3- as I know all iron ore mines include limonite / goethite content which will be in concentrate, may be low or high. would you please inform me:
how many of limonite / goethite content can affect on dewatering process?
4- Dryer: I think to this as the final solution. as you know it consumes energy too much, 3%*500 t/h=15t/h water drying !!!!
5- a solution which can save 15t/h water isn' better?
6- is there any surfactant can help? ■
Reducing Moisture Content
Reducing Moisture Content of Iron Ore Concentrate(drying,dewatering,...)
we would like to reduce moisture content of iron ore concentrate from 12% to 9% with below specification:
1- capacity: 500 t/h
2- moisture content: 12%
3- required moisture: 9%
4- application: pelletizing plant feed
5- Blain No.: 1600-1960 g/cm2
please inform me about your offer for drying, dewatering or any other solution for this problem which include the lowest energy consumption. ■