PL26537B1 - Ki. 7 & «nr ^ Exploding cartridge with a charge of liquid air or liquid oxygen. - Google Patents

Ki. 7 & «nr ^ Exploding cartridge with a charge of liquid air or liquid oxygen. Download PDF

Info

Publication number
PL26537B1
PL26537B1 PL26537A PL2653736A PL26537B1 PL 26537 B1 PL26537 B1 PL 26537B1 PL 26537 A PL26537 A PL 26537A PL 2653736 A PL2653736 A PL 2653736A PL 26537 B1 PL26537 B1 PL 26537B1
Authority
PL
Poland
Prior art keywords
liquid
charge
cartridge
air
exploding cartridge
Prior art date
Application number
PL26537A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL26537B1 publication Critical patent/PL26537B1/en

Links

Description

Przy rozsadzaniu wegla lub mineralów kopalnianych nabojami, zawierajacymi la¬ dunek cieklego powietrza lub cieklego tle¬ nu, zdarzaja sie czesto niewypaly, a po wy¬ buchu w spalinach znajduja sie nieraz gazy szkodliwe.Niewypaly i powstawanie gazów szko¬ dliwych zdarzaja sie czesto wtedy, gdy otwór wybuchowy znajduje sie w wilgotnej lub spekanej warstwie.Okazalo sie, ze wady powyzsze mozna usunac przez umieszczenie w naboju sale¬ try sodowej, która mozna zmieszac z wla¬ sciwym ladunkiem naboju lub umiescic od¬ dzielnie w naboju, lub tez przez otoczenie naboju warstwa saletry sodowej.Stwierdzono równiez, ze dodatnie dzia¬ lanie saletry sodowej wzmaga sie, o ile saletra jest bardzo drobno zmielona. PL PLWhen blasting coal or mine minerals with cartridges containing a charge of liquid air or liquid oxygen, misfires often occur, and after the explosion, harmful gases are often present in the exhaust gases. Misfires and the formation of harmful gases often occur when the explosion hole is located in a damp or cracked layer. It has been found that the above defects can be eliminated by placing sodium nitrate in the cartridge, which can be mixed with the actual cartridge charge or placed separately in the cartridge, or by surrounding the cartridge with a layer of sodium nitrate. It has also been found that the positive effect of sodium nitrate is enhanced if the saltpeter is very finely ground.

PL26537A 1936-08-29 Ki. 7 & «nr ^ Exploding cartridge with a charge of liquid air or liquid oxygen. PL26537B1 (en)

Publications (1)

Publication Number Publication Date
PL26537B1 true PL26537B1 (en) 1938-05-31

Family

ID=

Similar Documents

Publication Publication Date Title
GB191210826A (en) Improvements in or relating to Cigar Lighters or the like.
US3752079A (en) Method for fighting dust and noxious gases after blasts in mines
GB423040A (en) Improved blasting explosive cartridges and borehole charges
US1992690A (en) Safety pyrotechnics
GB422255A (en) Method for preventing the ignition of fire-damp and coal dust during mine blasting
RU2091581C1 (en) Composition of bottom-mouth stemming
De Kalb Manual of explosives: a brief guide for the use of miners and quarrymen
GB754155A (en) Improved method and means for blasting in mines
Coulter, T. & Lance Liquid oxygen explosives
US2297538A (en) Liquid oxygen explosive
Bagot Accidents in mines: their causes and prevention
Coulter, T. & Lance Liquid oxygen explosives, printed in Journal, November 1932 and January 1933, by T. Coulter and AE Lance: reply to discussion
Richards ... First Lessons on Minerals
PL19491B1 (en) Liquid air cartridge.
PL17014B3 (en) A method of preventing coal dust and gas explosions during the bursting of coal with explosives, and a cartridge for carrying out the method.
Guttmann Blasting: A handbook for the use of Engineers and others Engaged In Mining, Tunnelling, Quarrying, etc
PL18972B3 (en) Method of protection against coal dust explosion during coal bursting with explosive materials.
PL5490B1 (en) Method of using explosives with water.
Watson Explosions and fires in mines
Roychowdhury Coal dust explosions and their prevention
Muehlberger The Investigation of Bombs and Explosions
Burns Safety in coal mines: a textbook of fundamental principles for firemen and other workers in mines
Howell et al. Permissible Explosives, Mining Equipment, and Apparatus, Approved Prior to March 15, 1922
LE NEVE FOSTER et al. Journal of the Society for Arts, Vol. 9, no. 452
PL29736B1 (en) Westfalisoh- Anhaltische Sprengstoff ¦ Aktien - Gesellschaft Ohemische Fabriken, Berlin Explosive load