Reducing airbourne dust and improving extraction
Reducing airbourne dust and improving extraction
(OP)
Hello folks,
LEV seems to be the big thing in my work just now due to the large amount of heavy fabrication and welding processess.
Anyway, we have a very large shed where units are made and the building currently has extraction units for use at the job but also on the building it has several large fans which I believe blow air out of the building to outside. This isnt for extraction but I th8nk just to help air flow.
My question is would installing fans that blow air into the building improve extraction by adding a slight increase in the buildings air pressure? And would increasing air flow in and static pressure aid extraction in anyway?
Another reason for asking is I would like to suggest a way to keep dust down and feom reaching the cranes in the area. Would fans blowing air in and hopefully downwards assist in keeping dust at the lower level rather than fans creating an aircurrent potentially drawing air higher into the building?
Or are axial fans not powerful enougj ti really affect it either way?
LEV seems to be the big thing in my work just now due to the large amount of heavy fabrication and welding processess.
Anyway, we have a very large shed where units are made and the building currently has extraction units for use at the job but also on the building it has several large fans which I believe blow air out of the building to outside. This isnt for extraction but I th8nk just to help air flow.
My question is would installing fans that blow air into the building improve extraction by adding a slight increase in the buildings air pressure? And would increasing air flow in and static pressure aid extraction in anyway?
Another reason for asking is I would like to suggest a way to keep dust down and feom reaching the cranes in the area. Would fans blowing air in and hopefully downwards assist in keeping dust at the lower level rather than fans creating an aircurrent potentially drawing air higher into the building?
Or are axial fans not powerful enougj ti really affect it either way?
RE: Reducing airbourne dust and improving extraction
RE: Reducing airbourne dust and improving extraction
* Finding a solution is great * Knowing how to implement it is fantastic * Believing it is the only one and best is naive ?
RE: Reducing airbourne dust and improving extraction
It is likely that even with local exhaust your welders will have enough dust exposure that personnel respirators are needed to meet permissible exposure levels.
HSE has issued new guidance, I am in the US so you need to be the expert, this link may be useful: https://www.hvds.co.uk/welding-fume-guidance/
RE: Reducing airbourne dust and improving extraction