advice needed on homemade air filtration unit

[anthony]

Hi all, I need help/advice...

I just got an old furnace blower assembly with a 990 rpm 240 v motor. I want to build an air filter unit.

The squirrel cage is 12" X 12" and I just hooked up a 1745rpm 115v motor. The original motor was rated at 990rpm. Is the new motor going to give me better result by spinning the squirrel cage virtually 2X faster? I was wondering if I could get away with a unit having filters on three sides?

Is there any sites on the web that show IN Depth, CLOSE UP photos on how to construct a unit?

thanks for any suggestions/help

Anthony

[Dan Kratville]

This isn't very closeup or in depth but I was planning on trying to build this unit with a a squirrel cage blower myself. Dan

[Greg O]

What is the HP of the 115 volt motor? Twice the RPM will require approximately 4 times the HP!! I don't think its gonna work!

[anthony]

it's a 1/3 HP motor... I plugged it in, and it runs real smooth, but when I put a paper towel close to the sides, well, let's just say that I wasn't too impressed with the drawing power of the fan...

if any one can help, it's you guys/gals on this board!

[anthony]

[president]

We did the following for brazing fumes but much of the expertise these companies supply will be applicable to your use. I don't have any connection with any of these and, when we did this, the information was free.

Tom

Air Filtering Equipment

Equipment Choices You can start as I did with a simple fan and a metal stovepipe. This is very easy and cheap to install. The drawback is that it usually sucks a lot of warm air out during cold weather.

Consultants Most states provide free consulting. If you are in British Columbia then you can contact the Workers' Compensation Board at (604)

276-3209.

Three Excellent Articles

1. One is by John Ashe of AAF (American Air Filter) International in Louisville, KY. [phone]. His article is Controlling Welding Fumes in the July, 1997 issue of The Fabricator. Reprints of the article are available by calling [phone] and asking for reprint # APC-4-905.

1. Another good article was in the December 1996 issue of the same magazine. It was written by Joe Topmiller who is Director of Technical support for United Air Specialists at [phone] in Cincinnati, Ohio. The article is Addressing Air Quality Issues in the Workplace.

2. The third article is on new respiratory standards by Jay G. Mears in Modern Woodworking. [phone]. It was called: Intelligence Report: Getting Ready for 42 CFR part 84 call MSA and is available at [phone].

Equipment Suppliers:

1. AAF International (American Air Filters) -[phone] - small line but appropriate for most shop applications - great technical support - (see articles section above). Excellent technical advice.

1. Abicor Binzel [phone] Frederick, MD - They only supply fume extraction guns for welding. Great product if you need it.

2. Airflow Systems [phone] Dallas, TX - wide variety of units, overhead units, downdraft tables, and portable units - "Dust and fume Exhaust" pamphlet has good technical information. Recommended for literature.

1. Coppus [phone] Millbury, MA - unique, portable dust collection systems - also employee coolers for hot areas. Unique products.

2. Dust Vent, Inc. [phone] Addison, IL. - Wide range of equipment and good literature. Recommended for literature.

1. Eurovac [phone] in Ontario. -Central vacuum cleaner systems and other dust collection equipment.

2. Farr Pollution Control Products [phone] Los Angeles, CA. - Overhead cleaning with or without arms.

1. Gardner Environmental Products [phone] Horicon, WI

-Ceiling mounted and portable units.

1. Industrial Ventilation Group [phone] Harbor Springs, MI

-Central and portable units, downdraft tables. Recommended for literature.

1. Lincoln Electric [phone] -Offers a central collection system and portable units -just one mention in their catalog.

1. MAC Equipment, Inc. [phone] - Huge, complete catalog. Excellent information, great source to build your own system. Recommended for literature.

2. Nederman [phone] Westland, MI -Nice literature -looks like nice overhead arm extraction equipment -good information on Do It Yourself. Recommended for literature.

1. Plymovent [phone] New Jersey -good equipment -great free booklet "My Pocketguide to Clean Fresh Air". Recommended for literature.

2. Sly, Inc. [phone] Cleveland, OH -Shop size central collection systems to huge industrial systems. Recommended for literature.

1. Trion [phone] Greensboro, NC -Overhead units -they advertise a free clean air guide.

2. United Air Specialists [phone] Cincinnati, Ohio -Invented the original smoke eaters for bars, etc. -Good equipment -good literature and great technical help. Recommended for literature.