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The S.R. "Steve" Johnson Forum Specialized knife making tips, technique and training for "ultra precision" design work enthusiasts. |
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#1
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Dust Collection and Fire... READ!
Redundant, I know, but this is important... I feel a little stupid but I'm going to bear my shame with pride... Last night I had an explosion in the filter bag. I'm going to start by saying that I wasn't following my own advice, which is to include at least a four foot drop and a dust separator ( cyclone ) with water in the bottom. I was taking an unnecessary shortcut and being lazy and moved my 'portable,' filter to the new grinder set-up instead of waiting and setting it up the right way. I'm pretty sure what happened was that the small filings from a 220 grit belt built up on the platen into a small mass which caught fire and then went down into the pipe, so it didn't extinguish like a spark would. Even if you are smarter than me ( which didn't take much last night... ) KEEP THAT FIRE EXTINGUISHER UP TO DATE! Just last month I replaced the old one on an annual basis and when I checked it to see if it worked... it didn't. That replacement saved my *ss. Now I'd like to ask everyone what other precautions they take on the matter- it would be difficult for me to directly vent in the Winter, so I'd like to make sure the precautions I've taken ( and ignored... ) are adequate... Any other suggestions beyond dust separator, metal pipe and four-foot drops for grinding collection? |
#2
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If you can not afford a cyclone use like a 10' to 12' hose to give it more time to cool off the particles. Ricardo Velarde |
#3
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There is an actual firequench box(unsure of correct name),John Mallett of www.trugrit.com handles them.Might have to call about them though. |
#4
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Glad you're still there! Maybe we've all learned a lesson. Thanks for the report - and for not worrying about saving face. I appreciate your candidness. (Is that a word?) |
#5
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Fire Extinguishers - check 'em and get them refilled and make sure you have the right kind. Nothing like pouring water onto a grease fire. This is NO JOKE. I work on race cars all the time and it seems like paranoia, but we always have a fire extinguisher handy when we start them up. I've only needed one twice in about 10 years, but it made a big difference in salvaging the motor. |
#6
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Thanks, Jerry. We probably, hopefully, all have one handy, but we all, again, probably haven't checked them lately. Whe you need them you REALLY need them! |
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