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Started by Quartz_Porphyry
At the local copper & molybdenum mine, their recycled process water (decanted in a tailings impoundment) does not contain more than traces of nitrates. Their primary blasting agent is ANFO, so one would expect nitrates to be present in the ore. T...
At the local copper & molybdenum mine, their recycled process water (decanted in a tailings impoundment) does not contain more than traces of nitrates. Their primary blasting agent is ANFO, so one would expect nitrates to be present in the ore. T...
Last replied to by Jorge
Follow the link below,
Follow the link below,
Nitrate Concentrations Prediction in Tailings Effluent
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638
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Started by jeremy190
Hi everyone, I am a Chemical Engineering student and I am doing Plant Design course. In our plant, I have to size the Horizontal Vaccum Belt Filter for phosphoric acid production from phosphate rock. I am trying to look for a document about how to si...
Hi everyone, I am a Chemical Engineering student and I am doing Plant Design course. In our plant, I have to size the Horizontal Vaccum Belt Filter for phosphoric acid production from phosphate rock. I am trying to look for a document about how to si...
Last commented on by birgit.mets
Hi, Jeremy! Could you share the examples of other phosphoric acid production plants in the literature? I can't seem to find any examples with actual data..
Hi, Jeremy! Could you share the examples of other phosphoric acid production plants in the literature? I can't seem to find any examples with actual data..
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316
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Started by Chabvuta
what causes the thickener flowmeter reading differ from the manually calculated result, approximately 40% less.
what causes the thickener flowmeter reading differ from the manually calculated result, approximately 40% less.
Last commented on by Mike
Factory calibration is normally done on water and a standard pipe diameter. This will NOT mean it is calibrated for your operating conditions. You need to verify that it is set for your application ...
Factory calibration is normally done on water and a standard pipe diameter. This will NOT mean it is calibrated for your operating conditions. You need to verify that it is set for your application ...
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369
VIEWS
Started by OratileM
We have a problem with the Tailings thickener.It does not settle solids and the overflow has no clarity. The feed rate is 90m^3/h at the density of 1.12.The flocculant has been changed more than 3 times. It is dosed at full speed but there's no chang...
We have a problem with the Tailings thickener.It does not settle solids and the overflow has no clarity. The feed rate is 90m^3/h at the density of 1.12.The flocculant has been changed more than 3 times. It is dosed at full speed but there's no chang...
Last replied to by Mike
You did not mention the size of your thickener, this can play a big part in acchieving settling. Next, pH is also a key point and matching it to your flocculant. Then dosage rate and interaction w...
You did not mention the size of your thickener, this can play a big part in acchieving settling. Next, pH is also a key point and matching it to your flocculant. Then dosage rate and interaction w...
1
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430
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Started by Surry
Is it possible to change the location of air blowing section of vacuum disc filter (bag filter)?
Is it possible to change the location of air blowing section of vacuum disc filter (bag filter)?
Last replied to by Mike
The simple answer is, yes, but why? The air blow is normally/usually at the discharge point to help remove material from the cloth. Why would you want it some where else?
The simple answer is, yes, but why? The air blow is normally/usually at the discharge point to help remove material from the cloth. Why would you want it some where else?
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593
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Started by alenme
Hi Does anyone have recommendations on the dissolved oxygen for the SO2/air process. I could reach to 5-7 g/g SO2 to CN ratio and 8-10 pH ranges with 50 ppm of Cu but almost no recommendation is there in the literature regarding DO.
Hi Does anyone have recommendations on the dissolved oxygen for the SO2/air process. I could reach to 5-7 g/g SO2 to CN ratio and 8-10 pH ranges with 50 ppm of Cu but almost no recommendation is there in the literature regarding DO.
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607
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Started by John KK
Hello, We are running a dry stacking tailing storage facility, that include filter presses and the filtrate water is recycled for reuse in processing plant. Our current storage facility is at its lowest capacity and new facility is under constructio...
Hello, We are running a dry stacking tailing storage facility, that include filter presses and the filtrate water is recycled for reuse in processing plant. Our current storage facility is at its lowest capacity and new facility is under constructio...
1
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732
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Started by anjanisail
Do any body have data related to Rise rate to be consider for the sedimentation of slurry inside the High Rate Thickener. I want this for calculating the size of thickener in case of High rate thickener for iron ore concentrate and tailings.
Do any body have data related to Rise rate to be consider for the sedimentation of slurry inside the High Rate Thickener. I want this for calculating the size of thickener in case of High rate thickener for iron ore concentrate and tailings.
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644
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Started by anjanisail
I want to know what iom iron ore tailing dam. What are the losses we need to consider from tailing dam.
I want to know what iom iron ore tailing dam. What are the losses we need to consider from tailing dam.
Last commented on by anjanisail
Thanks a lot sir. I want to know sir what is the percentage amount of water we can recover from Iron ore tailing dam. Ex if we throw 1000 m3/hr of water in tailing pond then how much water we will be ...
Thanks a lot sir. I want to know sir what is the percentage amount of water we can recover from Iron ore tailing dam. Ex if we throw 1000 m3/hr of water in tailing pond then how much water we will be ...
4
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691
VIEWS
Started by anjanisail
How to correlate pilot scale data of Pressure filter with that for designing of plant. What will be the effect on Cycle Time consideration. How to calculate size of filter.
How to correlate pilot scale data of Pressure filter with that for designing of plant. What will be the effect on Cycle Time consideration. How to calculate size of filter.
Last commented on by anjanisail
Thanks a lot sir. What is the effect of - 40 micron particle in pressure filtration. What is the effect of Silica/ Alumina ratio in filtration. Is high silica to Alumina ratio is beneficial for filtra...
Thanks a lot sir. What is the effect of - 40 micron particle in pressure filtration. What is the effect of Silica/ Alumina ratio in filtration. Is high silica to Alumina ratio is beneficial for filtra...
1
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661
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Started by anjanisail
What is the percent of water we can recover from iron ore tailing dam. What are the losses we need to consider from tailing dam.
What is the percent of water we can recover from iron ore tailing dam. What are the losses we need to consider from tailing dam.
Last replied to by Mike
Water recover from a tailings system is dependent on the characteristics of the material. If the tails are low in clay and fines perhaps 50%, if the tails have a high amount of fines and clay 10% re...
Water recover from a tailings system is dependent on the characteristics of the material. If the tails are low in clay and fines perhaps 50%, if the tails have a high amount of fines and clay 10% re...
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793
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Started by annaheric
Can anyone help with minimising frothing in flotation thickeners? Frother in use is MIBC. Different options of adding carbon depressants in addition to flocculant have been trialed with no significant success.
Can anyone help with minimising frothing in flotation thickeners? Frother in use is MIBC. Different options of adding carbon depressants in addition to flocculant have been trialed with no significant success.
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761
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1541
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Started by Darrel
Hi all, How to remove or precipitate base metal such Cu, Zn, Fe in solution tailings of cyanide destruction by INCO process. The regulation limit 2 ppm and the actual residual about 15 ppm. The head about 20ppm. Our process running with pH 10-11. ...
Hi all, How to remove or precipitate base metal such Cu, Zn, Fe in solution tailings of cyanide destruction by INCO process. The regulation limit 2 ppm and the actual residual about 15 ppm. The head about 20ppm. Our process running with pH 10-11. ...
5
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1678
VIEWS
Started by Millza79
To anyone with operational experience with filter presses, If you get large throughputs of flotation concentrate to filter press (due to high head grades etc) than design or typical, how do you manage it? Does the filter press become a bottleneck a...
To anyone with operational experience with filter presses, If you get large throughputs of flotation concentrate to filter press (due to high head grades etc) than design or typical, how do you manage it? Does the filter press become a bottleneck a...
1
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1361
VIEWS
Started by Jorge Quintanilla
Friends: My name is Jorge Quintanilla, I am a Bolivian citizen (south america) I am involved in expansion plant project in Colquiri Mine, Bolivia. The project has three thickeners.Tin concentrate thickener 30 ft x 10 ft .Zinc concentrate thickener ...
Friends: My name is Jorge Quintanilla, I am a Bolivian citizen (south america) I am involved in expansion plant project in Colquiri Mine, Bolivia. The project has three thickeners.Tin concentrate thickener 30 ft x 10 ft .Zinc concentrate thickener ...
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1344
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Started by Millza79
Does anyone have some typical annual consumption numbers for filter cloths? I.e. tonnes of concentrate produced/square metres of cloth?
Does anyone have some typical annual consumption numbers for filter cloths? I.e. tonnes of concentrate produced/square metres of cloth?
Last replied to by Mike
Since one of the key wear factors is how the scraping and air blow is handled, the hours of operation is the figure normally kept. While the amount of material filtered is a factor, the amount of fi...
Since one of the key wear factors is how the scraping and air blow is handled, the hours of operation is the figure normally kept. While the amount of material filtered is a factor, the amount of fi...
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1341
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Started by Jorge Quintanilla
dear friends.. I have the task of installing, starting and leaving working three new thickeners for Zn, Sn concentrates and slimes.To perform the slurry density measurement in the under flow, nuclear densimeters are used. We want to avoid using thes...
dear friends.. I have the task of installing, starting and leaving working three new thickeners for Zn, Sn concentrates and slimes.To perform the slurry density measurement in the under flow, nuclear densimeters are used. We want to avoid using thes...
Last commented on by Mike
Actually find an instrumentation engineer over 50 years old and he can probably put one together for you.
Actually find an instrumentation engineer over 50 years old and he can probably put one together for you.
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1780
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Started by Ayanda
Hi, I am trainee at a Biox plant. Can anyone please share any information on how to assist reduce colloidal gold(gold suspended in liquid). We're losing alot of gold suspended in the wash liquor at the CCDs. Has anyone faced anything like this before...
Hi, I am trainee at a Biox plant. Can anyone please share any information on how to assist reduce colloidal gold(gold suspended in liquid). We're losing alot of gold suspended in the wash liquor at the CCDs. Has anyone faced anything like this before...
Last replied to by dauren.abralin
Does design consider loses of colloidal gold with CCD o/f's? I used to work on some BIOX plants and it seems to to me that this colloidal gold was a kind of myth. For Suzdal gold mine design criteria ...
Does design consider loses of colloidal gold with CCD o/f's? I used to work on some BIOX plants and it seems to to me that this colloidal gold was a kind of myth. For Suzdal gold mine design criteria ...
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1732
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Started by bobo12
Good day Everyone I have conducted settling rate tests and i recorded height of the interface after every 30 seconds. So how do i calculate the overall settling rate of the flocculated material.?? Thanks Bobo
Good day Everyone I have conducted settling rate tests and i recorded height of the interface after every 30 seconds. So how do i calculate the overall settling rate of the flocculated material.?? Thanks Bobo
Last replied to by Mike
see: https://www.911metallurgist.com/blog/settling-and-thickening-test-procedure
see: https://www.911metallurgist.com/blog/settling-and-thickening-test-procedure
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1415
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Started by Hamid72
Hello everybody I have some question What is the effect of feeding pressure and slurry percent solid on final moisture? Thanks for your attention
Hello everybody I have some question What is the effect of feeding pressure and slurry percent solid on final moisture? Thanks for your attention
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1572
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Started by CA
We have an application that requires a 1.5" x 1" slurry pump. However, the spare pumps that we have available are a Warman 3/2 and a Flowserve 2.5/2. We would like to try to reduce the throughput of these pumps by changing out the pulleys and/or u...
We have an application that requires a 1.5" x 1" slurry pump. However, the spare pumps that we have available are a Warman 3/2 and a Flowserve 2.5/2. We would like to try to reduce the throughput of these pumps by changing out the pulleys and/or u...
2
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1607
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Started by vaheedghassemy
hello friends I want to make a vacuum drum filter but i dont know how i can calculate required surface of drum . we have slurry with 20% soil(200 micron) and flow is 14000 lit/hour the eye of filter must be 50 micron. can you help me please. tha...
hello friends I want to make a vacuum drum filter but i dont know how i can calculate required surface of drum . we have slurry with 20% soil(200 micron) and flow is 14000 lit/hour the eye of filter must be 50 micron. can you help me please. tha...
Last commented on by vaheedghassemy
hello and thanks a lot
hello and thanks a lot
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1358
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Started by smhs
I use different surfactants to improve function of filtration. The pulp i used for the tests is the output of the leach stage and has pH 2. According to the result of XRD analysis and pzc of minerals in the pulp, I predicted that the anionic surfacta...
I use different surfactants to improve function of filtration. The pulp i used for the tests is the output of the leach stage and has pH 2. According to the result of XRD analysis and pzc of minerals in the pulp, I predicted that the anionic surfacta...
Last replied to by Mike
Not trying to be sarcastic (okay a little), but the old fashioned way of doing lab testing is often the most reliable. The are lot of things going on that theoretical work can miss, such as minera...
Not trying to be sarcastic (okay a little), but the old fashioned way of doing lab testing is often the most reliable. The are lot of things going on that theoretical work can miss, such as minera...
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2596
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Started by NP
Hello,Please, I need the help about the process of using hydro-sizers/aquasizers (upward water stream classification), and how the upward water stream affect the U/F PSD. Hydro-sizers are vertical and I saw them, but aquasizer looks like thickener, b...
Hello,Please, I need the help about the process of using hydro-sizers/aquasizers (upward water stream classification), and how the upward water stream affect the U/F PSD. Hydro-sizers are vertical and I saw them, but aquasizer looks like thickener, b...
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1534
VIEWS
Started by Hannes
Hello All. I need some help or insight on different cone designs between the scalloped floor and flat cone floor design. What are the pros and cons of the different designs?
Hello All. I need some help or insight on different cone designs between the scalloped floor and flat cone floor design. What are the pros and cons of the different designs?
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1750
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Started by Hamid72
Hello every body. In our plant we have orion pump for feeding our press filter. Their pressure rate in the feeding cycle is constant absolutely. They have only soft start have not variable speed drive to change feed pressure at feeding cycle. And we...
Hello every body. In our plant we have orion pump for feeding our press filter. Their pressure rate in the feeding cycle is constant absolutely. They have only soft start have not variable speed drive to change feed pressure at feeding cycle. And we...
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1596
VIEWS
Started by raveendra
We are operating a VBF to filter our tail thickener U/F to produce a cake of moisture 15-20% to make paste for U/G. Flocs are used in the process. We get substantial carry back during the filter press sometime even had to utilise labor permanently to...
We are operating a VBF to filter our tail thickener U/F to produce a cake of moisture 15-20% to make paste for U/G. Flocs are used in the process. We get substantial carry back during the filter press sometime even had to utilise labor permanently to...
Most likely cause is high fines, with a lot of pellet binder creating a dense bed blocking the flow of water. Drum filters may not be the best choice. Pressure filters or even centrifuges may wo...