I have a video of a coal conveyor on fire in Kapr, Malaysia. A not unusual event. I don't recall where the video came from. I looked for a link but couldn't find one. Coal dust is combustible and doesn't necessarily produce an explosion if ignited.
On Wed, Feb 23, 2011 at 3:30 PM, Ron Greenman <[email protected]> wrote: > Ultra High Speed Deluge will trip within 200 milliseconds of > detection. Presuming detection at the first glimmer of a spark this is > supposedly fast enough to arrest an explosion. Very sensitive spark > detectors everywhere under low light conditions. The Navy used to > really like these things but somehow got conned into saving money by > using those old rate of rise pneumatic detection (think Suprotex with > those copper tube thingies so that increasing air pressure moves the > mercury switches) making the Ultra Slow Speed Deluge. > > On Wed, Feb 23, 2011 at 2:42 PM, Stewart Kidd > <[email protected]> wrote: >> Coal is crushed in power stations by ball mills and is then blown into >> boilers by forced draft fans to be burnt like oil. I spent 10 years in power >> gen and used to be a member of NFPA 850 and I have never heard of non >> combustible coal. >> >> The coal which someone mentioned as being spontaneously combustible is, I >> think, known in the US as Powder River Coal. Bulk coal carriers often >> experience spontaneous heating of coal in their holds on long transits - >> usually caused by moisture content. >> >> Agree sprinklers will not stop explosions - after withdrawal of halon 1301 I >> 'd like to hear what will. Any number of explosions in grain, flour and >> sugar silos every year - these can be disastrous. >> >> Stewart >> On 23 Feb 2011, at 22:20, A.P.Silva wrote: >> >>> They claim the coal is crushed to powder form before being brought into the >>> building, and that the powdered coal has been tested to be non-combustible. >>> I'm waiting for the report. >>> >>> Tony >>> >>> -----Original Message----- >>> From: [email protected] >>> [mailto:[email protected]] On Behalf Of njarendt >>> tds.net >>> Sent: February 23, 2011 2:43 PM >>> To: [email protected] >>> Subject: Re: Fertilizer Plant >>> >>> Never heard of coal dust being noncombustible. We have employees up in the >>> mines and it is combustible and explosive per them. >>> >>> Norm >>> >>> On Wed, Feb 23, 2011 at 3:41 PM, A.P.Silva <[email protected]> wrote: >>> >>>> Coal dust is used in a process to manufacture fertilizer, in a 40,000 >>>> sq.ft. >>>> building, about 28 feet high. The issue is whether the building has to >>>> be sprinklered. The owner claims the coal is non-combustible and thus >>>> the building occupancy is low hazard industrial, in which case it >>>> would not have to be sprinklered. Anyone can comment on the occupancy? >>>> >>>> Tony >>>> >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected] >>>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >>>> >>>> For Technical Assistance, send an email to: [email protected] >>>> >>>> To Unsubscribe, send an email >>>> to:[email protected] >>>> (Put the word unsubscribe in the subject field) >>>> >>> >>> >>> >>> -- >>> Norman Arendt, CHS III, CMAS, PhD, CFEII President Infragard Madison Members >>> Alliance Middleton Fire District Plan Reviewer and Investigator PCII and CVI >>> Certified _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >>> >>> For Technical Assistance, send an email to: [email protected] >>> >>> To Unsubscribe, send an email to:[email protected] >>> (Put the word unsubscribe in the subject field) >>> >>> _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >>> >>> For Technical Assistance, send an email to: [email protected] >>> >>> To Unsubscribe, send an email to:[email protected] >>> (Put the word unsubscribe in the subject field) >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email to:[email protected] >> (Put the word unsubscribe in the subject field) >> > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering Technology > Bates Technical College > 1101 So. Yakima Ave. > Tacoma, WA 98405 > > [email protected] > > http://www.bates.ctc.edu/fireprotection/ > > 253.680.7346 > 253.576.9700 (cell) > > Member: > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC > > They are happy men whose natures sort with their vocations. -Francis > Bacon, essayist, philosopher, and statesman (1561-1626) > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
