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Joined: Apr 1999
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Posted anonymously by Jack Champaigne:
A user wants to know how he can prevent dust collector fires.

Joined: Apr 1999
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The following response came from Dwight Lutsko:

First of all the major causes of DC fires are:

1Cigarette butts
2 Sparks
3 Spontaneous Combustion
4 Improper dillution of air streams
5 Fans
6 External Sources

Lets look at prevention:

1 Designate the area non smoking
2 Sparks happen in blast cleaning all the time, fortunately they do not have the weight or magnitude to generally get to the dust collector. Spark arrestors such as Cyclones or spark boxes can be added.
3 Spontaneous Combustion happens in many non ferrous and ferrous mixed applications, this chemical process produces heat and then the fire. Empty the hopper daily, per shift, do not accumulate the dust. Add a Rotary air lock.
4 Mixing of air streams is generally not a dust collector problem for most of the users; it involves high temp air that must be cooled before it gets to the dust collector.

5 Fans, Clean the fan, Install non sparking fans, check the cleaning equipment of the dust collector, and Clean the Ducts to and from the DC.

6 External sources, grinding, welding and donít forget sabotage.

You can add a friendly dust; try lime adders to reduce the chance of a fire.

You can change to a wet Scrubber. Although I know of one fire that did occur in a wet scrubber.

Last (and definitely last), donít blast the work yourself. Outsource the potential problem.

By all means check with your insurance carrier on your policy, it will probably say you must comply with the NFPA Standards for your manufacturing item.

Dwight E. Lutsko
Jet Wheelblast Equipment
517 263 0502 x220
dlutsko@bucorp.net

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could there be a more specific cause of fire particularly with the pulse jet type DC. we have had 4 fires in one pulse jet type dust collector within 6 months, where as motorised bag shaking type dust collectors are working fine.

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We have developed ingenious products for preventing fires in dust collectors and also for fire fighting measures [automated] in case of accidental fires.

If you are interested kindly contact me on the following email address:

amit.aradhye@precicut.com

Regards,

Amit

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Dear Jack sir,
we have new technology for to prevent to fire in dust collector system Co2 Purging system and we have already supply no of installation at customer site.

u fell free contact on my mail id : amit.n.prajapati@gmail.com

for more technical info...

thanks
amit89.


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