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4
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3419
VIEWS
Started by Eder Figueiredo
Hi Everybody, I have seen many people get injured seriously during activities regarding the removal of the scrap metal such as excavator and loader teeth, drill bits in crushers. The major risks are sliding material and flying metal during cutting. ...
Hi Everybody, I have seen many people get injured seriously during activities regarding the removal of the scrap metal such as excavator and loader teeth, drill bits in crushers. The major risks are sliding material and flying metal during cutting. ...
1
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1395
VIEWS
Started by braster22
Hi everyone! Do you know anything about coal sampling devices? https://patents.google.com/patent/US5413004A/en This sampler contains a horizontal shaft hammer mill. But is it possible to change it to a vertical shaft hammer mill (0,5 meters rotor ...
Hi everyone! Do you know anything about coal sampling devices? https://patents.google.com/patent/US5413004A/en This sampler contains a horizontal shaft hammer mill. But is it possible to change it to a vertical shaft hammer mill (0,5 meters rotor ...
1
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1713
VIEWS
Started by Robert
Bougainville crushing plant was a bottleneck and major improvement opportunity. Malcolm Lees presentation reviews the work done to improve overall operational efficiency in this video: It includes: Bo...
Bougainville crushing plant was a bottleneck and major improvement opportunity. Malcolm Lees presentation reviews the work done to improve overall operational efficiency in this video: It includes: Bo...
1
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1699
VIEWS
Started by Robert
This is notice of a webinar on Thursday about auditing screening process. I can't attend due to a conflict. If someone else is interested and participated, I'd appreciate hearing your thoughts / learning. Thanks, Bob https://www.processingmagazine...
This is notice of a webinar on Thursday about auditing screening process. I can't attend due to a conflict. If someone else is interested and participated, I'd appreciate hearing your thoughts / learning. Thanks, Bob https://www.processingmagazine...
1
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1360
VIEWS
Started by Chapman Quarry
Hello I am looking to find the eccentric speed + stroke of the Symons 3ft, 4 1/4ft, 6ft and 7ftXD cones for a comparison for a customer against the newer style cone crushers. Would anyone have this information in old technical sheets? Thanks Rodg...
Hello I am looking to find the eccentric speed + stroke of the Symons 3ft, 4 1/4ft, 6ft and 7ftXD cones for a comparison for a customer against the newer style cone crushers. Would anyone have this information in old technical sheets? Thanks Rodg...
1
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1831
VIEWS
Started by Ranjan
I wish to know about selection criteria of roller screen and wobbler feeder. What are the relative advantage or disadvantage of both these equipment ?
I wish to know about selection criteria of roller screen and wobbler feeder. What are the relative advantage or disadvantage of both these equipment ?
1
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1405
VIEWS
Started by MSKabir
I am new in the field of mining and extractive metallurgy. I am looking into calculating/measuring total media wear inside semi-autogenous mills. From reading research papers, I came to know that primarily three wear mechanisms are in play namely: (a...
I am new in the field of mining and extractive metallurgy. I am looking into calculating/measuring total media wear inside semi-autogenous mills. From reading research papers, I came to know that primarily three wear mechanisms are in play namely: (a...
1
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2517
VIEWS
Started by RIfkhan
Hi I am working in a quartz processing plant. We have a VSI and after the sieve the output is with 1-10mm -50% and
Hi I am working in a quartz processing plant. We have a VSI and after the sieve the output is with 1-10mm -50% and
2
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1660
VIEWS
Started by BillXiao
Hello Friends there, To maximize the MP 1000 power draw for the tertiary crusher circuit, we try to look at the feeder speed and cavity level to control the power draw. Accurate cavity level measurement is critical for choke feeding the crusher. at ...
Hello Friends there, To maximize the MP 1000 power draw for the tertiary crusher circuit, we try to look at the feeder speed and cavity level to control the power draw. Accurate cavity level measurement is critical for choke feeding the crusher. at ...
5
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2712
VIEWS
Started by HotelBravo
HelloI am helping a alluvial mine in South America with their transformation to mercury free mining. They have an input of 208t/h of relatively fine particles (-0.25 inch particles make 55% of the total initial weight, -10 Mesh [2mm] particle...
HelloI am helping a alluvial mine in South America with their transformation to mercury free mining. They have an input of 208t/h of relatively fine particles (-0.25 inch particles make 55% of the total initial weight, -10 Mesh [2mm] particle...
1
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2749
VIEWS
Started by Laurence Jannetjies
Good afternoon Is there a site where I can get free samples of crusher plant modeling. Ie crusher,screens and conveyors
Good afternoon Is there a site where I can get free samples of crusher plant modeling. Ie crusher,screens and conveyors
2
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1699
VIEWS
Started by Solaris1987
Hello Dear I work in an iron concentrator plant and in our process and grinding stage, we use a tramp iron for removing of iron scraps such as rods, broken balls before HPGR mill feed which mounted on belt conveyor. The tramp iron is activated by a...
Hello Dear I work in an iron concentrator plant and in our process and grinding stage, we use a tramp iron for removing of iron scraps such as rods, broken balls before HPGR mill feed which mounted on belt conveyor. The tramp iron is activated by a...
Last replied to by christian2020
Please gentlmen,best Metal detector(s) to distinguish & remove silver scrap from poor mix silver gold ore screened ?
Please gentlmen,best Metal detector(s) to distinguish & remove silver scrap from poor mix silver gold ore screened ?
1
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2153
VIEWS
Started by Chromst
Hi everyone,I need to find the throughput (in tph) of a primary jaw crusher that is fed by a Grizzly screen O/S. There is a throughput recorded for the grizzly screen feeding belt but how can I find the cutpoint of the grizzly screen? Would it be bes...
Hi everyone,I need to find the throughput (in tph) of a primary jaw crusher that is fed by a Grizzly screen O/S. There is a throughput recorded for the grizzly screen feeding belt but how can I find the cutpoint of the grizzly screen? Would it be bes...
Last replied to by Mike
You start asking about the crusher throughput, and then talk about the grizzly cut point. Are you looking for the cut point of the screen in size or tonnage? For the size measure the opening size an...
You start asking about the crusher throughput, and then talk about the grizzly cut point. Are you looking for the cut point of the screen in size or tonnage? For the size measure the opening size an...
1
REPLY
1478
VIEWS
Started by happie
Hi everyone, we have a quarry which is to have two products at the same time since they are all highly needed, aggregate for railway construction and aggregates for road, tall building, and houses. could you please recommend the best crusher/s for t...
Hi everyone, we have a quarry which is to have two products at the same time since they are all highly needed, aggregate for railway construction and aggregates for road, tall building, and houses. could you please recommend the best crusher/s for t...
Last replied to by Mike
Start here: https://www.mclanahan.com/products/modular-wash-plants and here: https://www.kpijci.com/equipment/washing-and-classifying/complete-systems/ and here: https://www.mccloskeywashing.com/...
Start here: https://www.mclanahan.com/products/modular-wash-plants and here: https://www.kpijci.com/equipment/washing-and-classifying/complete-systems/ and here: https://www.mccloskeywashing.com/...
3
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3072
VIEWS
Started by Bob_T
I have an old Union Iron Works jaw crusher that we're trying to get back into service. It came with a 3 phase 15 HP electric motor and we're not sure which direction the crusher flywheel should rotate. Looking at the crusher from the side, wi...
I have an old Union Iron Works jaw crusher that we're trying to get back into service. It came with a 3 phase 15 HP electric motor and we're not sure which direction the crusher flywheel should rotate. Looking at the crusher from the side, wi...
2
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1677
VIEWS
Started by gdwright
Good day, Hi, i would like to know the appropriate way of dealing with the used polyurathane screen panels as a waste material.
Good day, Hi, i would like to know the appropriate way of dealing with the used polyurathane screen panels as a waste material.
2
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2292
VIEWS
Started by vaheedghassemy
hello friends do you know how i can calculate and design the output capacity for a jaw crusher? thanks a lot
hello friends do you know how i can calculate and design the output capacity for a jaw crusher? thanks a lot
2
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1516
VIEWS
Started by Natally
I am struggling on the type of primary and secondary crushers that i need to select and size for a copper supergene ore. The ore mainly consist of; • Chalcocite (Cu2S) 33%• Copper Oxide (CuO) 53%• Dolomite [CaMg(CO3)2] 14% The ore a...
I am struggling on the type of primary and secondary crushers that i need to select and size for a copper supergene ore. The ore mainly consist of; • Chalcocite (Cu2S) 33%• Copper Oxide (CuO) 53%• Dolomite [CaMg(CO3)2] 14% The ore a...
Last replied to by David
https://www.911metallurgist.com/blog/primary-crusher-selection https://www.quarry.com.au/files/technical_papers/microsoft_word_-_technical_paper-no.3.doc.pdf https://www.quarry.com.au/files/technica...
https://www.911metallurgist.com/blog/primary-crusher-selection https://www.quarry.com.au/files/technical_papers/microsoft_word_-_technical_paper-no.3.doc.pdf https://www.quarry.com.au/files/technica...
3
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1594
VIEWS
Started by quickgrow
Dear folks, I have been using coffee grinders and blenders to pulverize black basalt scoria gravel into powder sand for agriculture experiments but have been burning through blades after five or six cups of gravel. What is the best way to do this ...
Dear folks, I have been using coffee grinders and blenders to pulverize black basalt scoria gravel into powder sand for agriculture experiments but have been burning through blades after five or six cups of gravel. What is the best way to do this ...
Last replied to by quickgrow
Awesome, thanks!
Awesome, thanks!
8
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1599
VIEWS
Started by 15uzu
in order to make percolation leaching more effective we need to separate fines from the feed , we need to use a screen for this purpose, but for power and economic reasons we want to make a stable screen (without vibration) , the question now is : ...
in order to make percolation leaching more effective we need to separate fines from the feed , we need to use a screen for this purpose, but for power and economic reasons we want to make a stable screen (without vibration) , the question now is : ...
2
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2254
VIEWS
Started by Mike Rockandel
I am looking for an expert on impact crushing systems. The expert will review and provide recommendations for improvements on an existing operating system for a major producer.
I am looking for an expert on impact crushing systems. The expert will review and provide recommendations for improvements on an existing operating system for a major producer.
Last replied to by David
Try edwardwipf@bellsouth.net EdRockMan IV LLC of www.edrockmaniv.com
Try edwardwipf@bellsouth.net EdRockMan IV LLC of www.edrockmaniv.com
4
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2450
VIEWS
Started by Okay
Hello everyone, I need an advice for selection of jaw crusher. I know the calculations as product analysis information to select gyratory crusher (i.e. P=136(x^0.878)) but for jaw crushing I have no idea. Could you please suggest reference ?
Hello everyone, I need an advice for selection of jaw crusher. I know the calculations as product analysis information to select gyratory crusher (i.e. P=136(x^0.878)) but for jaw crushing I have no idea. Could you please suggest reference ?
Last commented on by
thanks for sharing.
thanks for sharing.
1
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1503
VIEWS
Started by cskumiega
Malian hard rock gold mine needing improved performance on hammer crusher, 20%+ too coarse.
Malian hard rock gold mine needing improved performance on hammer crusher, 20%+ too coarse.
1
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1498
VIEWS
Started by TISM
While metallurgists and process engineers go to great lengths to select and optimise the unit operations in our pit-to-port value chains, we are often let down when it comes to the commercial operation because the bulk solids just won't flow consiste...
While metallurgists and process engineers go to great lengths to select and optimise the unit operations in our pit-to-port value chains, we are often let down when it comes to the commercial operation because the bulk solids just won't flow consiste...
3
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4901
VIEWS
Started by fina
i have a question about law of comminution in the book that i read there are 4 laws, rittinger, kick, bond and holmes. for each law, they have their own constanta, but unlike bond that has bond's work index, i can not found rittinger and kick const...
i have a question about law of comminution in the book that i read there are 4 laws, rittinger, kick, bond and holmes. for each law, they have their own constanta, but unlike bond that has bond's work index, i can not found rittinger and kick const...
4
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2656
VIEWS
Started by fina
i have some questions about hammer crusher. for jaw crusher or gyratory crusher, there are spesific formula to calculate crusher power consumption but for hammer crusher, i can't find any formula i also want to calculate hammer crusher power eff...
i have some questions about hammer crusher. for jaw crusher or gyratory crusher, there are spesific formula to calculate crusher power consumption but for hammer crusher, i can't find any formula i also want to calculate hammer crusher power eff...
6
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2128
VIEWS
Started by Kedougou gold
Hello All Have a newbie question. we have a geology for a new site and the ore we need for final hammermill The mineralogical study carried out on this ore allowed us to make the following observations: Gold ore is macro-grained, whitish, g...
Hello All Have a newbie question. we have a geology for a new site and the ore we need for final hammermill The mineralogical study carried out on this ore allowed us to make the following observations: Gold ore is macro-grained, whitish, g...
Last replied to by JJA
Hello Kevin, I would see if it's possible to upgrade the wear parts to something more robust. AR400 or AR500 steel for liners, rotors, and screens, and maybe a chrome alloy for the hammers. Based on ...
Hello Kevin, I would see if it's possible to upgrade the wear parts to something more robust. AR400 or AR500 steel for liners, rotors, and screens, and maybe a chrome alloy for the hammers. Based on ...
4
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1926
VIEWS
Started by Jon Juhlin
The attachment (cone crusher wear profile.pdf) shows a before/after profile of wear parts from a cone crusher. The light line is the original profile. The bold line is the worn profile. The phantom shows the worn liner profile where it would have...
The attachment (cone crusher wear profile.pdf) shows a before/after profile of wear parts from a cone crusher. The light line is the original profile. The bold line is the worn profile. The phantom shows the worn liner profile where it would have...
Last replied to by David
Hi Jon, - operational changes that could be made = BE SURE to choke feed the crusher. I have never seen or hear of a design that allows for no choke feeding. Also, be sure to use quality liners:...
Hi Jon, - operational changes that could be made = BE SURE to choke feed the crusher. I have never seen or hear of a design that allows for no choke feeding. Also, be sure to use quality liners:...
6
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1995
VIEWS
Started by Smuts
We are producing crushed dolomite with a top size of 3mm using a HSI crusher and want to reduce the top size to 1mm while not substantially increasing the -300 micron fines. Current raw feed is 19mm stone. Is it possible to do this? If so what kind ...
We are producing crushed dolomite with a top size of 3mm using a HSI crusher and want to reduce the top size to 1mm while not substantially increasing the -300 micron fines. Current raw feed is 19mm stone. Is it possible to do this? If so what kind ...
Last replied to by Alex Doll
Remove the balls from the ball mill and install rods instead. Rod milling makes significantly less fines and can function down to 100 µm as long as the reduction ratio is not too great.
Remove the balls from the ball mill and install rods instead. Rod milling makes significantly less fines and can function down to 100 µm as long as the reduction ratio is not too great.
1
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1354
VIEWS
Started by aviasolar
Hi .. Looking for best method to seperate hammer milled solar cells ( polycrystaline silicon) .. 7% AL content 1.6-2.7% silver and balance silicon. I have them in chip form less than 3cm and some 100 mesh screened as result of running them thru a ...
Hi .. Looking for best method to seperate hammer milled solar cells ( polycrystaline silicon) .. 7% AL content 1.6-2.7% silver and balance silicon. I have them in chip form less than 3cm and some 100 mesh screened as result of running them thru a ...
2
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1727
VIEWS
Started by Leo5
good day, Wanted to find out if there is a better way of describing the effective aperture size of a slot if one has say 0.63*8.8 mm and 0.63*12 mm. They are both 0.63 mm panels, but how do we account for that difference in slot length in the descri...
good day, Wanted to find out if there is a better way of describing the effective aperture size of a slot if one has say 0.63*8.8 mm and 0.63*12 mm. They are both 0.63 mm panels, but how do we account for that difference in slot length in the descri...
Last replied to by Winchester
The difference between the two slot sizes for each panel is the open area per square foot. You could use the open area as part of the description of the panels.
The difference between the two slot sizes for each panel is the open area per square foot. You could use the open area as part of the description of the panels.
4
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2860
VIEWS
Started by Eder Figueiredo
Hi everybody.Wondering if somebody could tell me which is the correct type of bronze for bushings applied in the gyratory crusher, such as inner eccentric bushing and bottom shell bushing.A Brazilian’s supplier has supplied the bushings with the fo...
Hi everybody.Wondering if somebody could tell me which is the correct type of bronze for bushings applied in the gyratory crusher, such as inner eccentric bushing and bottom shell bushing.A Brazilian’s supplier has supplied the bushings with the fo...
Last commented on by Eder Figueiredo
Thanks for your advices, Baud. They were very useful for me. The alloy is ZCUSN10PB10 which is equivalent to US standard C.93700. As you have recommended, I will prepare the bushing bronze samples in ...
Thanks for your advices, Baud. They were very useful for me. The alloy is ZCUSN10PB10 which is equivalent to US standard C.93700. As you have recommended, I will prepare the bushing bronze samples in ...
3
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1918
VIEWS
Started by virock
I am working with a client to develop an ore diversion chute that would catch ore from the discharge of a conveyor that normally fills a coarse ore bin. The chute would redirect to a stacker. Two Questions: Typically, how steep can a chute like...
I am working with a client to develop an ore diversion chute that would catch ore from the discharge of a conveyor that normally fills a coarse ore bin. The chute would redirect to a stacker. Two Questions: Typically, how steep can a chute like...
Fine materials should not enter a jaw crusher because they tend to cause damage to the machine over time due to the small size and abrasive nature of the material. They can also clog or jam the machin...