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We are using a Stokes flaker and looking for blades for this equipment - does anyone use this device anymore and if so, where does one get blades?

Is this a name of a company or a type of steel? It is used for scraping amterial of a rotating drum. It also shows on the blade KF Steelflex and Lodding Specifications

The product in the tank added was napthalene if that makes any difference.....A 316 SS plate was welded over the cracks in the middle of the tank....

We have SS tank ( 316 L ) that we think leaked where we welded it - the material going into the tank was at 200 F - could we have thermal shocked it - is this possible - is 200 F too hot - what do we do to prevent this in future? The tank is vertical hold capacity of 5700 gallons - leak is at...

Is there any regulation which requires a nitrogen blanket into atmospheric storage tanks that contain flammable liquids? I could not find anything in NFPA - but there might be - typically these tanks are aound 10000 gallons each.... Help....

The few rotary kilns I have seen have a sight glass or some type of camera to see the flame. The bluer the flame the better. Check also the exhaust gases to see if their is any extra oxygen out the stack.

Imomag has a pump out there with reference that has no issues with high percentage nitric - thanks to poppeye who refferred me.....

25362, For you and others, Ansimag does not have a pump out there that has survived high concentrations of nitric acid. They sold lots of pumps, but not have lasted.

I have a question -- we have a UL 142 tank which we will need to put a vacuum releif on and wanted to know if the standard allows these tanks any vacuum rating whatsoever . If none, then how does one put a vacuum relef on such a tank.....

What ways are they to reduce the nitrogen usage? 1. We cannot put in an air compressor to take the place of nitrogen cause we want to avoid mishaps. 2. We have a nitrogen membrane unit with liquid backup and the costs are way too high and we have many years beofre we can get out. 3. We use...

What is the norm for purging vessels while in operation? We typically keep a constant purge of 50 scfh ( 70 acfh) of nitrogen on at all times no matter what size of reactor we have and they vary from 500 gallon to 4000 gallon. We still purge the vessels with a presure purge before chemicals...

are you still looking for answers? Where do you stand now?

I need to periodically install conservation vents and vacuum vents on atmospheric storage tanks - how do I determine the correct weights for these?

Let me explain further, we are going to store napthalene in a stoarge tank and use steam to keep it warm. Can I get the napthalene too hot and thus degrade the product? If so, what temperature would that be?

I am stumped or forgot to to do a calculation - if I have a 1000 gallon under zero pressure ( atmosheric) - I have about 133 cf of air ( 7.5 gallons per CF).. but if I pressurze that vessel with air, then I will have more air in the vessel but I forgot how to figure that volume out..... please...

Can you overheat napthalene and thus burn it or degrade it?

We just found out that ansimag does not have a pump that has handled 98 % nitric acid..... any other suggestions

Guidoo, I waited about 45-60 seconds for the first reading near the top of th evessel and then 15-30 seconds for the other two....

25362 - I ran the test aagin and waited longer for the sample to be taken. The pressure in the vessel was taken to 10 psig.. The nitrogen is 99.5 % purity. The results were as follows: 1st test 2nd test 3rd test Top: 12.2(13) 7.6(8.3) 4.9(5.4)...

Montemayor _ your basic assumptions are correct - 1) The vessel is a batch, kettle reactor - Yes 2) Time in between batches is valuable and should be reduced to a minimum - Yes and no - few minutes estra o=is okay... 3) The purging is done in-between batches - Yes 4) The kettle is rated at 75...