PL17014B3

PL17014B3 - A method of preventing coal dust and gas explosions during the bursting of coal with explosives, and a cartridge for carrying out the method.

Info

Publication number: PL17014B3
Application number: PL17014A
Authority: PL
Filing date: 1932-02-23
Publication date: 1932-10-31

Description

Najdluzszy czas trwania patentu do 20 stycznia 1947 r.W patencie Nir 15442 opasany zostal spo sób zapobiegania wybuchom pylu weglowe¬ go i gazów podczas rozsadzania wegla ma¬ terjalami wybuchowemi, wedlug którego jajko srodek, obnizajacy temperature wne¬ trza komory strzalowej,, stosuje sie lód.Wynalazek niniejszy polega na zastoso¬ waniu zamiast lodu wody db zapobiegania wybuchom pylu weglowego i gazów, zwla¬ szcza gdy szybkosc detonacji ladunku wy¬ buchowego zostaje zmniejszona. Oczywi¬ scie mozna stosowac równoczesnie tez i lód, jak opisano w paitencfe Ntr 15442, przy jed- noczesnem, jak wyzej poda/no, zmniejszeniu szybkosci detonacji.Sposób wedlug wynalazku niniejszego daje te korzysc, ze bez obawy wybuchu py¬ lu weglowego lub gazów, mozna stosowac wieksze ladunki, zmniejszenie szybkosci detonacji bowiem wplywa na obnizenie tem¬ peratury spalania materjalu wybuchowego, która jeszcze obniza para wodna, utworzo¬ na w czasie wybuchu z wody czy z lodu.Mozliwosc kilkakrotnego powiekszenia ilo¬ sci ladunków wybuchowych, przy calkowi- tem bezpieczenstwie od wybuchu pylu we¬ glowego i gazów, osiaga sie przedzielajac ladunki wkladkami z lodu lub wody,, przy- czem kazdy ladunek wybuchowy zaopatrzo¬ ny jest w osobny zapalnik.Wykonanie wynalazku polega na tern, ze w otworze wybuchowym obok ladunków zeskroplonemi gazami lub materjalami wybu- chowemi, z dbmieszka substancyj zimniej- slfajacycli szybkosc detonacji, umieszcza sie lód lub wode w szczelnie zamknietych nie¬ przemakalnych gilzach, palnych lub niepal¬ nych. PLThe longest term of the patent until January 20, 1947. Patent Nir 15442 encircled a method of preventing the explosion of coal dust and gases during the bursting of coal with explosive materials, according to which the egg is a means of reducing the temperature inside the shooting chamber, using ice. The present invention is based on the use of water instead of ice to prevent coal dust and gas explosions, particularly when the rate of detonation of the explosive charge is reduced. Of course, it is also possible to use ice and ice simultaneously, as described in Paitencfe Ntr 15442, while at the same time reducing the detonation rate as mentioned above. The method of the present invention has the advantage that without fear of coal dust or gas explosion. larger charges can be used, as a reduction in the rate of detonation reduces the combustion temperature of the explosive material, which lowers the water vapor created during an explosion from water or ice. The possibility of increasing the number of explosive charges by a complete safety against the explosion of coal dust and gases is achieved by dividing the charges with inserts made of ice or water, whereby each explosive charge is equipped with a separate detonator. The invention is based on the fact that in the blast hole next to the charges with liquefied gases or explosives, with a mixture of cold-cool substances and the speed of detonation, ice or water is placed in tightly closed water-proof cores, flammable or non-flammable. PL

Claims

Patent claims. 1. The method of preventing coal dust and gas explosions during the blasting with explosives, with the admixture of sufoisitants reducing the speed of detonation, according to the patent No. 15442, characterized by the fact that in the explosive chamber simultaneously with the explosive charge or the charge of liquefied gases is placed water or ice.

2., Naibdj dk the execution of the method along the route. 1, characterized in that the cargo with explosive materials or liquefied gases is closed on both sides with impermeable flammable or non-flammable pipes, filled with water, and the whole is contained in a tube.

3. A cartridge for making a shot along the coast. 1 to 2, characterized in that it consists of an explosive charge in an impermeable tube, surrounded on all sides by water.

4. A cartridge for carrying out a method according to claim 1. 1 to 3, characterized in that the individual explosive elements contained therein are separated from the others by the water.

A cartridge for carrying out the method of claim 1; 4. The method of claim 4, characterized in that each separate explosive charge contained in the cartridge is provided with a separate detonator. Ryszard Badowski. Deputy: Iniz. Th. Raczynski, patent attorney. Druk U Boguslawskiego i Ski, Warsaw. PL