jeneje
Well-known member
Hello all, I have researched the forum for a several days, and this is the design i have decided on for the hood and scrubber in my new workshop. I have incorporated the basics of 4metals design and others here, reviewing all the information I could find. I think I have covered most everything…but there are always room for improvement. I have attached a drawing I would like input on and suggestions please.
The hood size is 64” long 30” deep and 30” high made out of ¾” plywood coat with epoxy paint.
The bottom will have ¼” Plexiglas for the work area.
One four foot light encased in glass to lite the hood.
I have added a solid baffle at the back 6” from the back wall and 2” from each side and 3” up from the bottom.
In the center I am using a 4” inline exhaust fan with a blast gate connected to a 4”Y.
In front of the solid baffle, I am running a 1 ½” schedule 40 pvc pipe. Connecting 4 drops with y’s spaced ever 8” Connected to the Y’s at the bottom is a reducer - reducing the drops to ½” for connection of reaction hoses.
The front will have two ¼” sliding Plexiglas doors.
To help push the air through the 1 ½” pipe to the scrubber I will us a squirrel fan drawing air from the room as the inline fan draws from the exhaust side. I think with the right regulation of air flow, by using ball valves, I should be able to control the flow rate and retention time for scrubbing before exhausting to the outside.
The scrubber is a 55 gallon open top plastic barrel 22” in diameter inside and 46” tall.
Scrubbing solution is NaOH - this will be spayed through a 360% nozzle placed at top. The solution will be passed through a water filter hooked up to remove any settlement picked up off the packing.
The packing will be a mixture of ping pong balls, PVC pipes cut into shards, and wiffle balls.
Above the spray nozzle is the 4” PVC exhaust to the inline blower.
At the bottom of the scrubber I am installing a 2” drain with a trap and cleanout.
Thanks
Ken
The hood size is 64” long 30” deep and 30” high made out of ¾” plywood coat with epoxy paint.
The bottom will have ¼” Plexiglas for the work area.
One four foot light encased in glass to lite the hood.
I have added a solid baffle at the back 6” from the back wall and 2” from each side and 3” up from the bottom.
In the center I am using a 4” inline exhaust fan with a blast gate connected to a 4”Y.
In front of the solid baffle, I am running a 1 ½” schedule 40 pvc pipe. Connecting 4 drops with y’s spaced ever 8” Connected to the Y’s at the bottom is a reducer - reducing the drops to ½” for connection of reaction hoses.
The front will have two ¼” sliding Plexiglas doors.
To help push the air through the 1 ½” pipe to the scrubber I will us a squirrel fan drawing air from the room as the inline fan draws from the exhaust side. I think with the right regulation of air flow, by using ball valves, I should be able to control the flow rate and retention time for scrubbing before exhausting to the outside.
The scrubber is a 55 gallon open top plastic barrel 22” in diameter inside and 46” tall.
Scrubbing solution is NaOH - this will be spayed through a 360% nozzle placed at top. The solution will be passed through a water filter hooked up to remove any settlement picked up off the packing.
The packing will be a mixture of ping pong balls, PVC pipes cut into shards, and wiffle balls.
Above the spray nozzle is the 4” PVC exhaust to the inline blower.
At the bottom of the scrubber I am installing a 2” drain with a trap and cleanout.
Thanks
Ken