tulum: not much expereince with oil filled transformers (all ours are dry as they are in most u/g places I've worked)-we did try and install oil filled capacitors u/g but had major problems with authorities- they wanted them treated same as a transformer- building code rules came into...
You could try FFE Minerals or PR Engineering ( no affiliation with either)
We have a Traylor jaw crusher and just ahve a local hydraulic shop make up the hoses with fittings
Alexit: I think it's bunk also- dye has been used for years,especially on off highway equipment,nad any'controversy' surely would have shown up years ago- I did however bump into a friend of mine at lunch today(he has a general contracting business) and has been using dyed fuel for years with no...
I looked at one of our tank drawings- the vendor says for information on OSHA requirements (for ladders) see
'OSHA 1910.27'
I don't have that reg but hope this helps
I'm a little out of my element here and there is no-one on site to ask (i.e. no qualified person) -looking through info on API 650, API 2000 etc, what governs alterations to a tank, 9 metres high, 9 metres diamter that conatins a slurry ( non flammable. non toxic etc)? - there is a manhole for...
You may not have to go to the Fort- there's a book called' Pipeline Hydrotransport with Applications in the Oil Sands Industry' - they say it has applications for oil sands (obviously) but also mining, chemical industries etc- I'm thinking of getting a copy - $100 Cnn I think it says-
I found it...
yes you can- generally, it's known as a 'dry pipe system' although up to a point, some of the lines are filled with water- there are special valves ( dry pipe valves) with a flapper in them- the flapper is held down by a gas pressure ( usually compressed air or nitrogen- ours is compressed air...
Glad Backfill finally replied- I meant to but...
I don't know of any school that specailizes in mining electrics- in my experience , very few mines even have electrical engineers on staff, although most of the places have been rather small - we don't use engineering consultants unless we have...
Glad to be here! That particular incident happened in the early nineties-I hadn't worked in process plants before & was skeptical until I heard it from the horses mouth -still not sure why it happens - only refernce I could find was a case on a legal website where a family sued the mill after a...
sprintcar: I'm not sure that the'mechanism' has ever been determined - I remember being at a gold mine where a 1200 hp SAG mill was installed- the oversize went to a small gyratory crusher, and often a steel ball from the SAG mill somehow made its way into the small crusher - when we went to do...
We regularly use Vic butterfly valves, but recently have had trouble with the larger sizes (10"Vic-300)-using them on compressed air lines- anybody use anything more robust
(10', 115 psi, steel pipe)-problem is after a short time finding them very hard to close
Having been in a few process plants with SAG mills & they are inefficient- as low as 1% - since power costs are becoming a big issue there is lots of research being done ( try googling under SAG Mill efficiency) -technically I wouldn't consider them a 'crusher'- they are grinding mills and some...
StoneCold: you're absolutely right, for 'modern' mines- ours is upwards of 50 yrs old & adding something like that is too burdensome at this point- we will be operating out of a new mine soon, which will incorporate either chillers or a more elaborate ventilation scheme- I was just trying to do...
Thanks for the comments- I may want to sacrifice efficiency
for end result, which is cooling a hot & humid working environment ( we're looking for a place where they can go to 'cool' down if they becomes heat stressed)- if I could find a use for the hot air stream it would be even better but...
