PL136671B1 - Water-resistant ammonium nitrate explosive - Google Patents

Water-resistant ammonium nitrate explosive Download PDF

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Publication number
PL136671B1
PL136671B1 PL23707282A PL23707282A PL136671B1 PL 136671 B1 PL136671 B1 PL 136671B1 PL 23707282 A PL23707282 A PL 23707282A PL 23707282 A PL23707282 A PL 23707282A PL 136671 B1 PL136671 B1 PL 136671B1
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PL
Poland
Prior art keywords
weight
ammonium nitrate
water
mixture
nitroglycerin
Prior art date
Application number
PL23707282A
Other languages
Polish (pl)
Other versions
PL237072A1 (en
Inventor
Marian Ambrozek
Janusz Beres
Janusz Drzyzga
Barbara Golabek
Jan Guga
Zygmunt Kurantowski
Original Assignee
Zaklady Tworzyw Sztucznych Nit
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Zaklady Tworzyw Sztucznych Nit filed Critical Zaklady Tworzyw Sztucznych Nit
Priority to PL23707282A priority Critical patent/PL136671B1/en
Publication of PL237072A1 publication Critical patent/PL237072A1/en
Publication of PL136671B1 publication Critical patent/PL136671B1/en

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  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

Przedmiotem wynalazku jest material wybuchowy amonowo-saletrzany wodoodporny przeznaczony do ro¬ bót strzelniczych w kopalniach surowców mineralnych, nieweglowych otwartych i glebinowych zawilgoconych lub z woda stojaca.Znany material wybuchowy amonowo-saletrzany wodoodporny zawiera saletre amonowa i/lub saletre sodo¬ wa w ilosci powyzej 75% wagowych maczke pazdzierzowa lub maczke drzewna w ilosci do 10%* wagowych, trotyl w ilosci do 8% wagowych nitrogliceryne i/lub nitroglikol w ilosci 4 do 8% wagowych oraz mieszanine weglowodorów parafinowych zawierajacych w czasteczce co najmniej 16 atomów wegla i o temperaturze kropie¬ nia co najmniej 40° C w ilosci od 2 do 8% wagowych, które nadaja materialowi wodoodpornosc. Material moze równiez zawierac niewielkie ilosci substancji nadajacych mu zadany kolor, poprawiajacych odpornosc materialu na temperature, albo poprawiajacych jego bilans tlenowy.Wada znanego materialu jest jego zbrylenie sie w czasie skladowania. Dla zmniejszenia zbrylenia stosuje sie sposób wytwarzania opisany w polskim patencie 79 473 a polegajacy na tym, ze najpierw miesza sie maczke pazdzierzowa albo maczke drzewna w gniotowniku obiegowym z mieszanina weglowodorów parafinowych, otrzymana mieszanine laczy sie z pozostalymi skladnikami materialu i miesza. Opisany sposób prawie trzykro¬ tnie przedluza czas wykonania materialu, co sprawia, ze niewielkie uodpornienie materialu na zbrylenie uzyskuje sie kosztem trzykrotnego zmniejszenia wydajnosci.Celem wynalazku jest opracowanie materialu wybuchowego amonowo-saletrzanego wodoodpornego niezbry- lajacego sie w czasie skladowania i latwego w wykonaniu przez jednorazowo wymieszanie jego skladników.Cel wynalazku osiagnieto przez wykorzystanie niespodziewanego odkrycia, ze dodanie do materialu wybu¬ chowego od 0,2 do 2,5% wagowych poliakrylenu sodowego oraz od 0,1 do 1% wagowach stearynianu cynku nadaje materialowi dobra wodoodpornosc oraz równoczesnie poprawia jego odpornosc na zbrylanie.Poliakrylen sodowy jest substancja, której roztwór wodny o stezeniu 0,1 do 0,5% znajduje zastosowanie do usuwania zawiesin mineralnych w wodach pochodzacych z mycia gazów wielkopiecowych w hutnictwie. W mate¬ rialach wedlug wynalazku stosuje sie poliakrylen sodowy krystaliczny suchy i rozdrobniony.Material wybuchowy wedlug wynalazku zawiera saletre amonowa i/lub saletre sodowa w ilosci powyzej 70% • wagowych, maczke pazdzierzowa lub maczke drzewna w ilosci do 8% wagowych, trotyl i/lub mieszanine nitro¬ toluenów w ilosci do 15% wagowych, nitrogliceryne albo mieszanine nitrogliceryny i nitroglikolu w ilosci do 10% wagowy eh, poliakrylen sodowy w ilosci od 0,2 do 2,5% wagowych i stearynian cynku w ilosci od 0,1 do 1%2 136671 wagowych. Material nie wykazuje sladów zbrylania po jednomiesiecznym skladowaniu w temperaturze 20°C i przy wilgotnosci wzglednej powietrza 80%. Material badany na wodoodpornosc wytrzymuje skladowanie pod woda przez okres powyzej 4 godzin. Material wybuchowy wedlug wynalazku przedstawiono w ponizszym przykladzie.Przyklad: Material otrzymano przez wymieszanie ze soba: 80 kg saletry amonowej, 2,5 kg maczki drzewnej, 9 kg trotylu, 2 kg dwunitrotoulenów, 5,5 kg mieszaniny nitrogliceryny i nitroglikolu w,stosunku 1:1, 1,0 kg poliakrylenu sodowego o rozdrobnieniu takim, ze 90% przechodzilo przez sito o wymiarze oczek 0,3 mm, oraz 0,5 kg stearynianu cynku. Material nabojowano w otoczki z papieru parafinowego o srednicy 36 mm i cieza¬ rze 250 g. Material w nabojach nie wykazywal sladu zbrylenia po pieciu tygodniach skladowania w temperaturze 20°C i wilgotnosci wzglednej 80%.Zastrzezenie patentowe Material wybuchowy amonowo-saletrzany wodoodporny zawierajacy powyzej 70% wagowych saletry amo¬ nowej i/lub saletry sodowej^do 8% wagowych maczki pazdzierzowej lub maczki drzewnej, do 10% wagowych nitrogliceryny albo mieszaniny nitrogliceryny i nitroglikolu, do 15% wagowych trotylu i/lub mieszanine nitro¬ toluenów, znamienny tym, ze zawiera od 0,2 do 2,5% wagowych poliakrylenu sodowego i od 0,1 do 1% wagowych stearynianu cynku. ffepownia PoKgnfkziu UP PRL. Naklad 100 aj* i Cena 130 zl PLThe subject of the invention is a waterproof ammonium nitrate explosive intended for shooting in mines of mineral raw materials, open non-carbon and soil, damp or with stagnant water. 75% by weight of clove dust or wood flour up to 10% * by weight, trotyl up to 8% by weight nitroglycerine and / or nitroglycol in the amount of 4 to 8% by weight and a mixture of paraffin hydrocarbons containing at least 16 carbon atoms in a particle and a drop temperature It is at least 40 ° C in an amount from 2 to 8% by weight which makes the material waterproof. The material may also contain small amounts of substances which give it a given color, improve the material's heat resistance, or improve its oxygen balance. A disadvantage of the known material is its agglomeration during storage. In order to reduce caking, the method of production described in Polish patent 79 473 is used, which consists in first mixing the clot flour or wood flour in a circulating mill with a mixture of paraffin hydrocarbons, the obtained mixture is combined with the remaining components of the material and mixed. The described method extends the production time of the material almost three times, which means that the material's low resistance to lumps is achieved at the expense of a threefold reduction in efficiency. The aim of the invention is to develop a waterproof ammonium nitrate explosive that does not clump during storage and is easy to make by a single operation. mixing its components. The aim of the invention was achieved by exploiting the unexpected discovery that adding 0.2 to 2.5% by weight of sodium polyacrylate and 0.1 to 1% by weight of zinc stearate to the explosive imparts good water resistance to the material and improves it at the same time. resistance to caking. Sodium polyacrylate is a substance whose water solution with a concentration of 0.1 to 0.5% is used for the removal of mineral suspensions in the water from washing blast furnace gases in metallurgy. The materials according to the invention use crystalline sodium polyacrylate, dry and finely divided. The explosive material according to the invention comprises ammonium nitrate and / or sodium nitrate in an amount of more than 70% by weight, rind or wood flour in an amount of up to 8% by weight, tretil and / or a mixture of nitro toluenes up to 15% by weight, nitroglycerin or a mixture of nitroglycerin and nitroglycol up to 10% by weight eh, sodium polyacrylene in an amount from 0.2 to 2.5% by weight and zinc stearate in an amount from 0.1 to 1% 2 136671 by weight. The material shows no signs of caking after one month of storage at 20 ° C and 80% relative air humidity. Material tested for water resistance withstands storage under water for more than 4 hours. The explosive material according to the invention is presented in the following example: Example: The material was obtained by mixing together: 80 kg of ammonium nitrate, 2.5 kg of wood flour, 9 kg of TNT, 2 kg of dinitrotoluenes, 5.5 kg of a mixture of nitroglycerin and nitroglycol in a ratio of 1 : 1.10 kg of sodium polyacrylate with a disintegration such that 90% passes through a sieve with a mesh size of 0.3 mm, and 0.5 kg of zinc stearate. The material was filled with envelopes made of paraffin paper with a diameter of 36 mm and a weight of 250 g. The material in the cartridges did not show any sign of caking after five weeks of storage at 20 ° C and 80% relative humidity. Patent claim Waterproof ammonium nitrate explosive containing the above 70% by weight of ammonium nitrate and / or sodium nitrate, up to 8% by weight of clove dust or wood flour, up to 10% by weight of nitroglycerin or a mixture of nitroglycerin and nitroglycol, up to 15% by weight of TNT and / or a mixture of nitrotoluenes, characterized by that it contains from 0.2 to 2.5% by weight of sodium polyacrylate and from 0.1 to 1% by weight of zinc stearate. ffepownia PoKgnfkziu UP PRL. Mintage 100 aj * i Price PLN 130 PL

Claims (1)

1. Zastrzezenie patentowe Material wybuchowy amonowo-saletrzany wodoodporny zawierajacy powyzej 70% wagowych saletry amo¬ nowej i/lub saletry sodowej^do 8% wagowych maczki pazdzierzowej lub maczki drzewnej, do 10% wagowych nitrogliceryny albo mieszaniny nitrogliceryny i nitroglikolu, do 15% wagowych trotylu i/lub mieszanine nitro¬ toluenów, znamienny tym, ze zawiera od 0,2 do 2,5% wagowych poliakrylenu sodowego i od 0,1 do 1% wagowych stearynianu cynku. ffepownia PoKgnfkziu UP PRL. Naklad 100 aj* i Cena 130 zl PL1. Patent claim Water-resistant ammonium nitrate explosive containing more than 70% by weight of ammonium nitrate and / or sodium nitrate ^ up to 8% by weight of clove dust or wood flour, up to 10% by weight of nitroglycerin or a mixture of nitroglycerin and nitroglycol, up to 15% by weight TNT and / or a mixture of nitro toluenes comprising from 0.2 to 2.5% by weight of sodium polyacrylate and from 0.1 to 1% by weight of zinc stearate. ffepownia PoKgnfkziu UP PRL. Mintage 100 aj * i Price PLN 130 PL
PL23707282A 1982-06-22 1982-06-22 Water-resistant ammonium nitrate explosive PL136671B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL23707282A PL136671B1 (en) 1982-06-22 1982-06-22 Water-resistant ammonium nitrate explosive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL23707282A PL136671B1 (en) 1982-06-22 1982-06-22 Water-resistant ammonium nitrate explosive

Publications (2)

Publication Number Publication Date
PL237072A1 PL237072A1 (en) 1984-01-02
PL136671B1 true PL136671B1 (en) 1986-03-31

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PL237072A1 (en) 1984-01-02

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