"Mike Marlow" wrote
>
> yeah - but to be fair, there is a huge difference between a grain silo and
> a woodworking shop. In the world of grain silos, the potential for an
> explosion is very expected. It's not a freak accident. There is a lot
> published on the mixture required for different materials to become
> explosive, and grain silos can much more easily hit the right mixture for
> grain. Or at least they used to. I'm sure they are more controlled now.
>
I remember reading a story in jr high about the explosive power of grains.
There was even some attempts to use them directly in an internal combustion
engine. They were trying to perfect a "carburator" for cornstarch. It
either did not work well or it worked too well. The resulting explosions
destroyed the engine block.
On Feb 23, 2:25=A0pm, Morris Dovey <[email protected]> wrote:
> Leon wrote:
> > "HeyBub" <[email protected]> wrote in message
> >news:[email protected]...
> >> Video of sawdust-fueled cannon
>
> >>http://www.youtube.com/watch?v=3DXVLNoYkuC4s&NR=3D1
>
> > Nice camera Trick! =A0Every one here knows that saw dust suspended in t=
he air
> > will not ignite. =A0It has been discussed time and time and time again.=
=A0;~)
>
> Yuppers - and notice the lack of a grounding cable/stake.
>
> Wonder if you could bring down one o' them black helicopters with a rig
> like that?
>
> --
> Morris Dovey
> DeSoto Solar
> DeSoto, Iowa USAhttp://www.iedu.com/DeSoto/
Setting off one of these under the wash of a chopper? Black or
otherwise?
Talk about blow-back!
<G>
On Tue, 24 Feb 2009 12:08:15 -0600, Leon cast forth these pearls of
wisdom...:
> "Mike Marlow" <[email protected]> wrote in message
> news:[email protected]...
>> On Tue, 24 Feb 2009 08:09:03 -0800 (PST), [email protected] cast forth
>> these pearls of wisdom...:
>>
>>
>> yeah - but to be fair, there is a huge difference between a grain silo and
>> a woodworking shop. In the world of grain silos, the potential for an
>> explosion is very expected. It's not a freak accident. There is a lot
>> published on the mixture required for different materials to become
>> explosive, and grain silos can much more easily hit the right mixture for
>> grain. Or at least they used to. I'm sure they are more controlled now.
>>
>> I'm not an advocate of relying upon freak accident excuses, but I'm
>> equally no advocate of ignoring the probabilities of things either.
>
>
> Actually I bet that if there were as many saw dust silos as there are grain
> silos you might see more explosions.
Perhaps, but therein lies a big part of the issue. The silo itself is a
big contributor to the necessary environment for an explosion. It enables
the concentrations and air mixtures required. Not the same environment as
found in workshops.
--
-Mike-
[email protected]
On Tue, 24 Feb 2009 08:09:03 -0800 (PST), [email protected] cast forth
these pearls of wisdom...:
> On Feb 24, 8:44 am, "Leon" <[email protected]> wrote:
>
>> BAH! If you do a Google search on this news group you will find that there
>> are numerous individual posters that have never witnessed this happening or
>> know any one that this has happened to. Therefore it is imposable for it to
>> happen until it does happen to them or some one that they know personally,
>> and then it would only be considered a "freak accident" and freak accidents
>> simply do not happen to some individuals because they know that they are
>> being plenty careful. ;~)
>
> Well said, Leon. All too true.
>
> Anyone that has ever worked, lived, or been around grain silos know
> for sure that there is no such thing as as dust ignition. Uh - huh.
>
> Besides, when I DAGS Images for "grain silo explosion", it only came
> back with a few hundred over 16,000 hits. Not nearly enough proof for
> the fine minds of this venue to prove that fine organic dust can
> ignite.
>
> Robert
yeah - but to be fair, there is a huge difference between a grain silo and
a woodworking shop. In the world of grain silos, the potential for an
explosion is very expected. It's not a freak accident. There is a lot
published on the mixture required for different materials to become
explosive, and grain silos can much more easily hit the right mixture for
grain. Or at least they used to. I'm sure they are more controlled now.
I'm not an advocate of relying upon freak accident excuses, but I'm
equally no advocate of ignoring the probabilities of things either.
--
-Mike-
[email protected]
On Feb 23, 12:38 pm, "Leon" <[email protected]> wrote:
> "HeyBub" <[email protected]> wrote in message
> Nice camera Trick! Every one here knows that saw dust suspended in the air
> will not ignite. It has been discussed time and time and time again. ;~)
"borealbushman" <[email protected]> wrote in message
news:786f7a27-8a9f-4032-af57-09e1102e471b@v15g2000vbb.googlegroups.com...
Interesting that "Every one here knows that sawdust ..."
Every year when I taught Shop I'd gather my students out back in the
compound and show them what happens when sawdust is puffed up (air
through a hose) under a large can with a lighted candle present. I
guess it was just magic that blew the can 50' up in the air?
Sorry, but Leon's right. To prove it, the whole contraption is metal, it's
clearly touching the ground, so it's obviously grounded. Therefore it's
*impossible* to ignite anything with it.
nice post-production work, it almost looks real.
jc
Leon wrote:
> "HeyBub" <[email protected]> wrote in message
> news:[email protected]...
>> Video of sawdust-fueled cannon
>>
>> http://www.youtube.com/watch?v=XVLNoYkuC4s&NR=1
>>
>
>
> Nice camera Trick! Every one here knows that saw dust suspended in the air
> will not ignite. It has been discussed time and time and time again. ;~)
Yuppers - and notice the lack of a grounding cable/stake.
Wonder if you could bring down one o' them black helicopters with a rig
like that?
--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/
borealbushman wrote:
> Interesting that "Every one here knows that sawdust ..."
>
> Every year when I taught Shop I'd gather my students out back in the
> compound and show them what happens when sawdust is puffed up (air
> through a hose) under a large can with a lighted candle present. I
> guess it was just magic that blew the can 50' up in the air?
>
>
> On Feb 23, 12:38 pm, "Leon" <[email protected]> wrote:
>> "HeyBub" <[email protected]> wrote in message
>
>> Nice camera Trick! Every one here knows that saw dust suspended in the air
>> will not ignite. It has been discussed time and time and time again. ;~)
Without a doubt, Leon was being sarcastic... :-)
--
Free bad advice available here.
To reply, eat the taco.
http://www.flickr.com/photos/bbqboyee/
Interesting that "Every one here knows that sawdust ..."
Every year when I taught Shop I'd gather my students out back in the
compound and show them what happens when sawdust is puffed up (air
through a hose) under a large can with a lighted candle present. I
guess it was just magic that blew the can 50' up in the air?
On Feb 23, 12:38=A0pm, "Leon" <[email protected]> wrote:
> "HeyBub" <[email protected]> wrote in message
> Nice camera Trick! =A0Every one here knows that saw dust suspended in the=
air
> will not ignite. =A0It has been discussed time and time and time again. =
=A0;~)
"Leon" <[email protected]> wrote in message
news:[email protected]...
>
> "borealbushman" <[email protected]> wrote in message
> news:786f7a27-8a9f-4032-af57-09e1102e471b@v15g2000vbb.googlegroups.com...
> Interesting that "Every one here knows that sawdust ..."
>
> Every year when I taught Shop I'd gather my students out back in the
> compound and show them what happens when sawdust is puffed up (air
> through a hose) under a large can with a lighted candle present. I
> guess it was just magic that blew the can 50' up in the air?
>
>
>
> BAH! If you do a Google search on this news group you will find that
> there are numerous individual posters that have never witnessed this
> happening or know any one that this has happened to. Therefore it is
> imposable for it to happen until it does happen to them or some one that
> they know personally, and then it would only be considered a "freak
> accident" and freak accidents simply do not happen to some individuals
> because they know that they are being plenty careful. ;~)
Think of it as a self correcting condition. The shop needs a good cleaning,
pronto, when the air gets that thick with dust. A quick fire ball to kick
off the event is appropriate. Most the time, though, I keep the road flares
far away, and never but never put a lit one where the DC might snatch it.
"Morris Dovey" <[email protected]> wrote in message
news:[email protected]...
> Leon wrote:
>>
>> Nice camera Trick! Every one here knows that saw dust suspended in the
>> air will not ignite. It has been discussed time and time and time again.
>> ;~)
>
> Yuppers - and notice the lack of a grounding cable/stake.
>
> Wonder if you could bring down one o' them black helicopters with a rig
> like that?
Hummmmmm, something else for the government to do a study on and spend 4.6
brazillion.
Leon wrote:
> "Robatoy" <[email protected]> wrote in message
> news:05e9c094-7f62-4f5b-b385-1296eb02a896@v39g2000yqm.googlegroups.com...
> On Feb 23, 2:25 pm, Morris Dovey <[email protected]> wrote:
> Setting off one of these under the wash of a chopper? Black or
> otherwise?
> Talk about blow-back!
>
> <G>
>
>
> This thing would obviously be illegal in California, probably causes cancer
> in lab rats.
>
>
Only Canadian Rats.....
"HeyBub" <[email protected]> wrote in message
news:[email protected]...
> Video of sawdust-fueled cannon
>
> http://www.youtube.com/watch?v=XVLNoYkuC4s&NR=1
>
26 hours late, by my computer's clock
;-)
jc
Leon wrote:
> "Morris Dovey" <[email protected]> wrote in message
> news:[email protected]...
>> Leon wrote:
>>>
>>> Nice camera Trick! Every one here knows that saw dust suspended in
>>> the air will not ignite. It has been discussed time and time and
>>> time again. ;~)
>>
>> Yuppers - and notice the lack of a grounding cable/stake.
>>
>> Wonder if you could bring down one o' them black helicopters with a
>> rig like that?
>
> Hummmmmm, something else for the government to do a study on and
> spend 4.6 brazillion.
But if it's for the children... (national debt does not count).
Joe wrote:
> Every year when I taught Shop I'd gather my students out back in the
> compound and show them what happens when sawdust is puffed up (air
> through a hose) under a large can with a lighted candle present. I
> guess it was just magic that blew the can 50' up in the air?
>
> Sorry, but Leon's right. To prove it, the whole contraption is
> metal, it's clearly touching the ground, so it's obviously grounded.
> Therefore it's *impossible* to ignite anything with it.
>
> nice post-production work, it almost looks real.
>
Dust is dangerous. It is so dangerous, that the government even studies
vacuum cleaners!
"This appendix has been prepared to give some guidance on the selection and
use of vacuum cleaners for the removal and collection of [dust]. It may also
be considered as outline guidance for other low combustibility solids. It
... gives guidance on the features commonly available on domestic,
commercial and industrial vacuum cleaners, and the effect that these may
have on selection."
http://www.hse.gov.uk/food/dustexplosionapp1.htm
Be careful, or you'll end up with a Hoover Mover.
On Feb 24, 8:44=A0am, "Leon" <[email protected]> wrote:
> BAH! =A0If you do a Google search on this news group you will find that t=
here
> are numerous individual posters that have never witnessed this happening =
or
> know any one that this has happened to. =A0Therefore it is imposable for =
it to
> happen until it does happen to them or some one that they know personally=
,
> and then it would only be considered a "freak accident" and freak acciden=
ts
> simply do not happen to some individuals because they know that they are
> being plenty careful. =A0;~)
Well said, Leon. All too true.
Anyone that has ever worked, lived, or been around grain silos know
for sure that there is no such thing as as dust ignition. Uh - huh.
Besides, when I DAGS Images for "grain silo explosion", it only came
back with a few hundred over 16,000 hits. Not nearly enough proof for
the fine minds of this venue to prove that fine organic dust can
ignite.
Robert
On Feb 23, 1:45=A0pm, borealbushman <[email protected]> wrote:
> Interesting that "Every one here knows that sawdust ..."
>
> Every year when I taught Shop I'd gather my students out back in the
> compound and show them what happens when sawdust is puffed up (air
> through a hose) under a large can with a lighted candle present. I
> guess it was just magic that blew the can 50' up in the air?
>
> On Feb 23, 12:38=A0pm, "Leon" <[email protected]> wrote:
>
> > "HeyBub" <[email protected]> wrote in message
> > Nice camera Trick! =A0Every one here knows that saw dust suspended in t=
he air
> > will not ignite. =A0It has been discussed time and time and time again.=
=A0;~)
Damn, Leon... you must give your bait recipe...
On Feb 24, 1:46=A0pm, dpb <[email protected]> wrote:
> Leon wrote:
> > "Mike Marlow" <[email protected]> wrote in message
> >news:[email protected]...
> >> On Tue, 24 Feb 2009 08:09:03 -0800 (PST), [email protected] cast f=
orth
> >> these pearls of wisdom...:
>
> >> yeah - but to be fair, there is a huge difference between a grain silo=
and
> >> a woodworking shop. =A0In the world of grain silos, the potential for =
an
> >> explosion is very expected. =A0It's not a freak accident. =A0There is =
a lot
> >> published on the mixture required for different materials to become
> >> explosive, and grain silos can much more easily hit the right mixture =
for
> >> grain. =A0Or at least they used to. =A0I'm sure they are more controll=
ed now.
>
> >> I'm not an advocate of relying upon =A0freak accident excuses, but I'm
> >> equally no advocate of ignoring the probabilities of things either.
>
> > Actually I bet that if there were as many saw dust silos as there are g=
rain
> > silos you might see more explosions.
>
> More, but still quite rare. =A0Sawdust generally is not nearly as fine as
> is grain dust, hence much harder to get into sufficient concentration to
> make an explosive mixture and iirc the ignition point is higher as well.
>
> --
Also, some of the silo explosions are dust as well as 'silo gas',
which I am guessing to be methane related?
See the winky. Inside joke, I'm guessing.
I think he's playin' off another thread about dust collectors.
> Interesting that "Every one here knows that sawdust ..."
>
> Every year when I taught Shop I'd gather my students out back in the
> compound and show them what happens when sawdust is puffed up (air
> through a hose) under a large can with a lighted candle present. I
> guess it was just magic that blew the can 50' up in the air?
>
>
>> Nice camera Trick! Every one here knows that saw dust suspended in the air
>> will not ignite. It has been discussed time and time and time again. ;~)
>
--
-MIKE-
"Playing is not something I do at night, it's my function in life"
--Elvin Jones (1927-2004)
--
http://mikedrums.com
[email protected]
---remove "DOT" ^^^^ to reply
Leon wrote:
> "Mike Marlow" <[email protected]> wrote in message
> news:[email protected]...
>> On Tue, 24 Feb 2009 08:09:03 -0800 (PST), [email protected] cast forth
>> these pearls of wisdom...:
>>
>>
>> yeah - but to be fair, there is a huge difference between a grain silo and
>> a woodworking shop. In the world of grain silos, the potential for an
>> explosion is very expected. It's not a freak accident. There is a lot
>> published on the mixture required for different materials to become
>> explosive, and grain silos can much more easily hit the right mixture for
>> grain. Or at least they used to. I'm sure they are more controlled now.
>>
>> I'm not an advocate of relying upon freak accident excuses, but I'm
>> equally no advocate of ignoring the probabilities of things either.
>
>
> Actually I bet that if there were as many saw dust silos as there are grain
> silos you might see more explosions.
More, but still quite rare. Sawdust generally is not nearly as fine as
is grain dust, hence much harder to get into sufficient concentration to
make an explosive mixture and iirc the ignition point is higher as well.
--
"Mike Marlow" <[email protected]> wrote in message
news:[email protected]...
> On Tue, 24 Feb 2009 08:09:03 -0800 (PST), [email protected] cast forth
> these pearls of wisdom...:
>
>
> yeah - but to be fair, there is a huge difference between a grain silo and
> a woodworking shop. In the world of grain silos, the potential for an
> explosion is very expected. It's not a freak accident. There is a lot
> published on the mixture required for different materials to become
> explosive, and grain silos can much more easily hit the right mixture for
> grain. Or at least they used to. I'm sure they are more controlled now.
>
> I'm not an advocate of relying upon freak accident excuses, but I'm
> equally no advocate of ignoring the probabilities of things either.
Actually I bet that if there were as many saw dust silos as there are grain
silos you might see more explosions.
"HeyBub" <[email protected]> wrote in message
news:[email protected]...
> Video of sawdust-fueled cannon
>
> http://www.youtube.com/watch?v=XVLNoYkuC4s&NR=1
>
Nice camera Trick! Every one here knows that saw dust suspended in the air
will not ignite. It has been discussed time and time and time again. ;~)
"HeyBub" <[email protected]> wrote in message
news:[email protected]...
: Video of sawdust-fueled cannon
:
: http://www.youtube.com/watch?v=XVLNoYkuC4s&NR=1
:
Don't know about the ATF, but if I was one of the local fire folks in
that area I don't think I'd be very pleased with anyone setting off that
kind of fireball in the middle of all those trees.
Len
"Robatoy" <[email protected]> wrote in message
news:05e9c094-7f62-4f5b-b385-1296eb02a896@v39g2000yqm.googlegroups.com...
On Feb 23, 2:25 pm, Morris Dovey <[email protected]> wrote:
Setting off one of these under the wash of a chopper? Black or
otherwise?
Talk about blow-back!
<G>
This thing would obviously be illegal in California, probably causes cancer
in lab rats.
"borealbushman" <[email protected]> wrote in message
news:786f7a27-8a9f-4032-af57-09e1102e471b@v15g2000vbb.googlegroups.com...
Interesting that "Every one here knows that sawdust ..."
Every year when I taught Shop I'd gather my students out back in the
compound and show them what happens when sawdust is puffed up (air
through a hose) under a large can with a lighted candle present. I
guess it was just magic that blew the can 50' up in the air?
BAH! If you do a Google search on this news group you will find that there
are numerous individual posters that have never witnessed this happening or
know any one that this has happened to. Therefore it is imposable for it to
happen until it does happen to them or some one that they know personally,
and then it would only be considered a "freak accident" and freak accidents
simply do not happen to some individuals because they know that they are
being plenty careful. ;~)