6' Fume Hood

[Noxx]

Hi Chemist,

My fume hood won't open from the side. It'll open like a regular fume hood, the door being supported by counterweights.

I have an airflow meter and can get accurate reading.

I can understand your concern with epoxy. I'll look carefully.

The air influx was considered in the design, I'm pulling air from the roof which is a few degrees hotter than the outside.


Thank you

 

[chemist_12]

Ah, so you aren't done building the frame yet. I look forward to seeing the sash and counterweights installed then!

I believe most of the hoods I'm familiar with are built of painted steel. I think a lot of building materials could be good... glass plate would make a pretty great countertop, and so could any number of acid/base/halogen stable materials. An old lab benchtop would be great too, and I bet you could get one used pretty cheap (or free) if you looked around. You could even refinish it with a sander before installation. HDPE Polyethylene would be safe, lightweight, and durable. (think about what chemicals are stored in).

I will continue to watch this project with interest and see how everything works out. Fume hoods are a good idea in general, and of course the commercial ones are expensive, so anyone who is interested in starting up any kind of chemical industry can learn from your successes and mistakes here.

 

[Noxx]

I started building the second fume hood for my propane furnace. It's all stainless steel.

First time for me welding a project like this. The welds aren't pretty since I do not use gas protection with the MIG.

 

[Palladium]

First time for me welding a project like this. The welds aren't pretty since I do not use gas protection with the MIG.

I remember my first welds. :mrgreen:
Looks like your doing great Noxx. I love the fact you are so hands on with this project. Watch those welding fumes though.

 

[kuma]

Hi Noxx , how are tricks ?
I hope that your all well!
That's looking good so far chief , nice work!
I've been following this thread from the start and it's very cool seeing the magic happen as it were , I can't wait to see it all when your finished with the fabrication , 8)
Wishing you all the best with it , and sending kind regards ,
Chris :mrgreen:

 

[publius]

Snip... First time for me welding a project like this. The welds aren't pretty since I do not use gas protection with the MIG.

I expect that you are using the FCAW (flux core arc welding) rather than the GMAW (gas metal arc welding) referred to as MIG (metal inert gas) in Europe. If that is the case, make sure that the flux/scale is removed from where the weld may contact air that has a high moisture/acid content.

 

[buckdec]

Just grab some silver and braze it together then when your done with it you can refine it.

 

[Noxx]

More pics

 

[Barren Realms 007]

Other than the excessive amount of welding you will be doing it looks great. Excellent job there Noxx. 2 thumbs up to you on this project.

 

[Noxx]

Nah, I won't be doing to much welding. The empty spaces are sealed using aluminum tape.

Again, I used a system of pulleys to lift the hood at the correct position before installing the chains.

 

[glondor]

Looks good tho I must admit when I see it it reminds me of french fries and burgers for some reason

 

[Noxx]

Finished the installation tonight:

Also, had some bad luck trying to install the glass door on the fume hood... It slipped and broke into zillon of tiny pieces...

 

[butcher]

The exhaust hood looks great, the glass looks bad.

 

[Anonymous]

There ya go Nic,now you have some silica for the next smelting batch...lol.

 

[Geo]

dang, that is some bad luck. next time hire an extra set of hands. i imagine that glass is heavy.

 

[Smack]

Damn dude that sucks, at least it was tempered.

 

[HigginsMechanical]

More pics

Very nice hood Noxx, sorry about the glass though.... Two steps forward, one step back but keep marching on!

 

[DONNZ]

I'm lost:

Will the hood be used as a dual purpose hood, fumes and excess heat from furnace and fume removal from chemicals?

Pic 1 shows the hood hinging

Pic 2 showing your furnace under the hood

Pic 3 showing what look like your work table ? located under the hood ?


How will you move the work table out from under the hood. I see the furnace on wheels, no problem there.

Just asking

The hood looking good, glass not look good at all.

Adding a question: Why heavy glass?

 

[Thinksilver]

Just wondering where you got the blower and the cost of it?

 

[Smack]

Just wondering where you got the blower and the cost of it?

Re-read page 2 of this post.