Post by rob52 on Jun 15, 2013 7:44:49 GMT -5
Harpur Hill Laboratory - Health & Safety Executive Research & Lab Services, Buxton, England
Post by tonys on Feb 26, 2011 at 2:07pm
"John, did you ever get the chance to go to Mines Research in Buxton? Their training centre is / was fantastic, lots of flashes and bangs to show how FLP and intrinsic works, or doesn’t for that matter. They covered FLP flame paths and labyrinth seals for bearings.
One test rig had 3 FLP chambers all linked by flame paths. Centre chamber for ignition, LH chamber .006” flame path, RH chamber .008”. Ignite centre chamber, LH nothing happened, RH Bang!
As you know I’m from quarrying but the plants I worked on used 21M ft2 of gas a day so we tried to be as tight on procedures as you would be underground."
Post by John on Feb 26, 2011 at 2:15pm
"No Tony, just wished I had had that chance, Buxton always sounded a very interesting set up!!"
Post by tonys on Feb 26, 2011 at 10:27pm
"Got to admit I was lucky. I was sent there for training by the company I worked for when we first introduced gas firing. Later when we built the first pulverised coal plant I had a return visit.
The best bit was the guy that was my Best Man was a research assistant there, so I got a couple of illicit visits. It must be a fantastic place to work. Everyone on the outside is trying to stop explosions, they get the remit to cause them!
I’ve got to admit I was comfortable with gas, pulverised coal frightened me. We had problems with a kiln, in one night we blew out 21 explosion panels due to spontaneous combustion! 7 panels per explosion. We had to abandon coal firing that night and revert to gas firing. No more CO2 to put the fires out!"
Post by erichall on Nov 2, 2012 at 3:11am
"Funny hearing about Buxton! After working many years in the old South Barnsley and N.Derbyshire Areas, during which time I had the opportunity to visit a couple of times, i'm now living some 1/2 mile from the 'Health and Safety Executive Laboratories' on Harpur Hill. Still the old site. Like you., I remember 'Buxton' for its bangs, especially the one where they displayed the difference in sparks from rust metal (cold spark) and from rust metal covered in aluminium foil(hot spark). The H&S at Buxton was a place of many purposes. It had underground (drifts into the hillside) galleries where they tested explosives for their Sheathed and Equivalent to sheathed properties, stone dust barriers and their effect after an explosion, and tested all equipment for its flameproof certificate. this equipment varied from electrical switchgear to Flame Safety Lamps. The 'Garforth' Lamp, which replaced the Type 6 Relighter Deputy's Lamp, using a bulb sample which could read much higher %ages than the Type 6 was designed here under the auspices of a friend of mine, who once asked me to clean up a number of different types of FSL which had gine rusty. They used to keep a specimen of any lamp they tested. As a thank you, George gave me a choice of any one of the lamps, which to this day is proudly displayed alongside my own personal Type 6and GR6 lamps.
There was an RAF station nearby (not an aerodrome) which became during WW2 along with the H&S galleries the largest bomb dump in England."
Read more: coalmine.proboards.com/thread/717/mning-electrical-terminology#ixzz2WHuVlUcu
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************
Hi tonys re your post Feb 26, 2011 at 10:27pm & erichall Nov 2, 2012 at 3:11am
=>> There are a couple of good articles in Mining Technology the Journal of the The Institution of Mining Electrical and Mining Mechanical Engineers (IMEMME) .[was Association of Mining Electrical and Mechanical Engineers (AMEME)] re the Harpur Hill Laboratory at Buxton
Article 1)
1992 Mining Technology 74 855 - "Harpur Hill Laboratory at Buxton 600 acre SIte - Explosion and Flame Laboratory - Safety in Mines Research Board 65yrs" - by McQuaid J.
Health & Safety Executive Research & Lab Services, Buxton, England
Article discusses Research IS & Flameproof Flameproof tests to 50MVA (4.37kA) for 0.2 seconds Fault Power and Overloaded Equipment Assessment. Up to 6.6kV, 140kW continuous rating, infinitely variable output voltage from 415V to 6.6kV 3 phase 50Hz. 220kW Dynamometer for testing rotating machines. 366m long surface explosion gallery used to study large scale dust explosions.
Article 2)
1988 Mining Technology 70 808 SUPPRESSION OF DUST EXPLOSIONS IN COAL MINES. - Lunn G.A. Research into Dust & Ventilation
Health & Safety Executive Research & Lab Services, Buxton, England
Article Discusses Stone Dust Barriers
In British mine stone dust explosion barriers are used. Although these barriers are able to suppress explosions having a wide range of flame speeds, modern mining techniques have made it difficult in some roadways for stone dust barriers to be installed effectively and according to the conditions of approval. In this paper, the standard stone dust barriers are described along with their shortcomings. Alternatives are discussed and the research work being done to overcome shortcomings is described.
*****************
Noted Also:
1992 Mining Technology 74 857 How British Coal Obtains Value From Mining R&D - Buchanan D J
"Mining Research Budget in 1984/85 had an expenditure of 28 Million Pounds"
1983 Mining Technology 65 756 SMRE RESEARCH IN MINING ELECTRICAL AND MECHANICAL ENGINEERING. - Johnston A.G.
"The Research and Laboratory Services Division (RLSD) of the Health and Safety Executive (HSE) is comprised of three major subdivisions. These are the Safety Engineering Laboratory (SEL), the Explosion and Flame Laboratory (EFL) and the Occupational Medicine and Hygiene Laboratory (OMHL). Mining problems comprise the work program of the Safety in Mines Research Establishment (SMRE) which is part of RLSD. SMRE's electrical and mechanical engineering work is concentrated in EFL and SEL. RLSD also incorporates the Electrical Equipment Certification Service for surface and mining industries, i. e. , the British Approvals Service for Electrical Equipment in Flammable Atmospheres (BASEEFA) and Health and Safety Executive (Mining) HSE(M), respectively."
Mining Investigations Branch at Bretby
****************
Aus has:
Londonderry which M.R. Lloyd was associated with, this has morphed into Testsafe
Testsafe
Testsafe Capability
&
Simtars
Rob
Post by tonys on Feb 26, 2011 at 2:07pm
"John, did you ever get the chance to go to Mines Research in Buxton? Their training centre is / was fantastic, lots of flashes and bangs to show how FLP and intrinsic works, or doesn’t for that matter. They covered FLP flame paths and labyrinth seals for bearings.
One test rig had 3 FLP chambers all linked by flame paths. Centre chamber for ignition, LH chamber .006” flame path, RH chamber .008”. Ignite centre chamber, LH nothing happened, RH Bang!
As you know I’m from quarrying but the plants I worked on used 21M ft2 of gas a day so we tried to be as tight on procedures as you would be underground."
Post by John on Feb 26, 2011 at 2:15pm
"No Tony, just wished I had had that chance, Buxton always sounded a very interesting set up!!"
Post by tonys on Feb 26, 2011 at 10:27pm
"Got to admit I was lucky. I was sent there for training by the company I worked for when we first introduced gas firing. Later when we built the first pulverised coal plant I had a return visit.
The best bit was the guy that was my Best Man was a research assistant there, so I got a couple of illicit visits. It must be a fantastic place to work. Everyone on the outside is trying to stop explosions, they get the remit to cause them!
I’ve got to admit I was comfortable with gas, pulverised coal frightened me. We had problems with a kiln, in one night we blew out 21 explosion panels due to spontaneous combustion! 7 panels per explosion. We had to abandon coal firing that night and revert to gas firing. No more CO2 to put the fires out!"
Post by erichall on Nov 2, 2012 at 3:11am
"Funny hearing about Buxton! After working many years in the old South Barnsley and N.Derbyshire Areas, during which time I had the opportunity to visit a couple of times, i'm now living some 1/2 mile from the 'Health and Safety Executive Laboratories' on Harpur Hill. Still the old site. Like you., I remember 'Buxton' for its bangs, especially the one where they displayed the difference in sparks from rust metal (cold spark) and from rust metal covered in aluminium foil(hot spark). The H&S at Buxton was a place of many purposes. It had underground (drifts into the hillside) galleries where they tested explosives for their Sheathed and Equivalent to sheathed properties, stone dust barriers and their effect after an explosion, and tested all equipment for its flameproof certificate. this equipment varied from electrical switchgear to Flame Safety Lamps. The 'Garforth' Lamp, which replaced the Type 6 Relighter Deputy's Lamp, using a bulb sample which could read much higher %ages than the Type 6 was designed here under the auspices of a friend of mine, who once asked me to clean up a number of different types of FSL which had gine rusty. They used to keep a specimen of any lamp they tested. As a thank you, George gave me a choice of any one of the lamps, which to this day is proudly displayed alongside my own personal Type 6and GR6 lamps.
There was an RAF station nearby (not an aerodrome) which became during WW2 along with the H&S galleries the largest bomb dump in England."
Read more: coalmine.proboards.com/thread/717/mning-electrical-terminology#ixzz2WHuVlUcu
************
************
Hi tonys re your post Feb 26, 2011 at 10:27pm & erichall Nov 2, 2012 at 3:11am
=>> There are a couple of good articles in Mining Technology the Journal of the The Institution of Mining Electrical and Mining Mechanical Engineers (IMEMME) .[was Association of Mining Electrical and Mechanical Engineers (AMEME)] re the Harpur Hill Laboratory at Buxton
Article 1)
1992 Mining Technology 74 855 - "Harpur Hill Laboratory at Buxton 600 acre SIte - Explosion and Flame Laboratory - Safety in Mines Research Board 65yrs" - by McQuaid J.
Health & Safety Executive Research & Lab Services, Buxton, England
Article discusses Research IS & Flameproof Flameproof tests to 50MVA (4.37kA) for 0.2 seconds Fault Power and Overloaded Equipment Assessment. Up to 6.6kV, 140kW continuous rating, infinitely variable output voltage from 415V to 6.6kV 3 phase 50Hz. 220kW Dynamometer for testing rotating machines. 366m long surface explosion gallery used to study large scale dust explosions.
Article 2)
1988 Mining Technology 70 808 SUPPRESSION OF DUST EXPLOSIONS IN COAL MINES. - Lunn G.A. Research into Dust & Ventilation
Health & Safety Executive Research & Lab Services, Buxton, England
Article Discusses Stone Dust Barriers
In British mine stone dust explosion barriers are used. Although these barriers are able to suppress explosions having a wide range of flame speeds, modern mining techniques have made it difficult in some roadways for stone dust barriers to be installed effectively and according to the conditions of approval. In this paper, the standard stone dust barriers are described along with their shortcomings. Alternatives are discussed and the research work being done to overcome shortcomings is described.
*****************
Noted Also:
1992 Mining Technology 74 857 How British Coal Obtains Value From Mining R&D - Buchanan D J
"Mining Research Budget in 1984/85 had an expenditure of 28 Million Pounds"
1983 Mining Technology 65 756 SMRE RESEARCH IN MINING ELECTRICAL AND MECHANICAL ENGINEERING. - Johnston A.G.
"The Research and Laboratory Services Division (RLSD) of the Health and Safety Executive (HSE) is comprised of three major subdivisions. These are the Safety Engineering Laboratory (SEL), the Explosion and Flame Laboratory (EFL) and the Occupational Medicine and Hygiene Laboratory (OMHL). Mining problems comprise the work program of the Safety in Mines Research Establishment (SMRE) which is part of RLSD. SMRE's electrical and mechanical engineering work is concentrated in EFL and SEL. RLSD also incorporates the Electrical Equipment Certification Service for surface and mining industries, i. e. , the British Approvals Service for Electrical Equipment in Flammable Atmospheres (BASEEFA) and Health and Safety Executive (Mining) HSE(M), respectively."
Mining Investigations Branch at Bretby
****************
Aus has:
Londonderry which M.R. Lloyd was associated with, this has morphed into Testsafe
Testsafe
Testsafe Capability
&
Simtars
Rob
