I have been following imports of steel products for years, since our steel production of fasteners went from 95%-"made in the USA" to 0%. Many moons ago, circa 1970's, I think if I can remember back that far. I remember writing a letter to some people in Congress after a small investigation...
You might try PIFCOM,Pittsburgh Industrial furnaces) located in Pittsburgh, PA. They are a furnace design group with expertise in the steel industry. If an EAF is not the solution they may have an option.
Dear Natemclaim, from previous thread437-201243.
I think trying to recover materials from tailings is a long awaited function and we would like to be involved using our RBI technology. Please contact me at tcinc002@aol.com. This could have benefits beyond our imagination in using wastes of...
Ron, Your question and problem area was interesting information for me. I have spent the greater part of my career almost 40 years involved in the business of shaft furnace engineering and operation including the shaft furnaces for pelletizing induration. There aren't but a few in operation...
it sounds like you don't have much confidence in your maintenance department and from what I gather there isn't much experience in fan and stainless technology either. When in doubt contact the fan vendor, tell him the problem, ask for assistance and a quote to fix it or get a comparison quote...
Firstly, you might try adding side skirting to the top to reduce side overflow and secondly you might try adding cross ribs or flights to form pockets. If you do add flights you'll have to modify the discharge cleaner into a beater and you'll have to increase the drive mechanism horsepower.
As...
Yes, VAI is recycling some of the oily mill scale from there own hot rolling mills back into their BF in Linz, Austria as a practice to eliminate some of the iron bearing materials wastes they generate and the oily base does provide some hydrocarbons in the BF. They have to be a little careful...
Yes I agree. The filter will take out any debris and the regulator is required for any Pneumatic actuator, but the filter will not take out any liquids.
As an afterthought, the design that we mostly employ for the instrumentation air is cs from the air reservoir and/or compressor to the...
I've been associated with the petrochemical, chemical and metallurgical industries for almost 40 years. Stainless, copper and in some cases even poly is used for instrument air since it can be field fitted more easily than cs and since it has thinner walls, but other than cs being a dirty steel...
BobC,
There are technologies out there that are being developed for the recycling of mill waste including scales, dust, and some slag as well if the slag is high enough in residual metals. Not much is being written about them recently, except for the paper I published last January in Europe in...
The conventional BF has operated using iron ore, limestone and coke for eons. Over the last decade or so there has been an attempt to replace the reducing fuel (coke), put into the top of the furnace, with a replacement fuel put into the tureyes, granulated coal, tar, coal fines, or any other...
Please refer to AIST.org. This is the iron and steel technology association. Or contact the AISE the professional society for steel engineers. Coal tar addition has to be regulated specifically to the operating parameters of the BF, by the way.
I appreciate the input, very much. I'm a process technologist and only noticed it when nothing made sense on a mass balance and weigh scales were going nuts. We were operating at less than capacity and I wasn't paying attention to power useage. We have some medium voltage fans that I am most...
What are you doing with your steel mill waste materials? I need to get information on steel mill waste products and possible ways of utilizing it, both hazardous and normal waste, mill scale, dust, fines, swarthing, etc. Please respond to tcinc002@aol.com
I am working with a processing plant in India. All equipment is designed for 50 hertz but the frequency of incoming power ranges from 46 to 51. What are the effects on motors and capacities and long term effects on motor life?
please respond to tcinc002@aol.com
J. Covey,
I am in total favor of preventative maintenance and have acted as an instructor in some minerals processing plants, petrochemical plants, mines etc, as an independent consultant. I have no ready made programs, but, the idea is not to jump all over them for the negative side of being...
