Use of the Pyrocomposition Energy based on the Ammonium Nitrate for Safe Destruction of the Concrete Blocks


Annotation:

The article is devoted to the development and research of the pyrocompositions based on the ammonium nitrate for safe destruction of the concrete blocks. Ammonium nitrate was chosen as the oxidizer for the pyrocompositions. The choice is primarily due to its low cost and low sensitivity to the mechanical and detonation effects. In addition, ammonium nitrate has a significantly lower content of harmful compounds in combustion products compared to the analogues. Waste polyethylene was used as a fuel. Its use contributes to arranging processing of the synthetic waste, which occupies vast areas and pollutes the environment 
Based on the research results, the pyrocomposition was developed from 91 % of ammonium nitrate, and 9 % of polyethylene. Composition can be used for directed destruction of the concrete blocks or rocks of medium strength with a coefficient of 3.5–4 on the Protodyakonov scale. Thermodynamic characteristics were studied related to the combustion processes of a binary mixture of ammonium nitrate and polyethylene. It is established that the maximum combustion temperature and gas density are achieved when the stoichiometry is observed. Using thermodynamic modeling in the TDS program, the gas composition of the reaction products was calculated. The main components are carbon dioxide, water vapor and nitrogen. Poisonous gases such as carbon monoxide and nitrogen oxides are practically absent.
Field experiments on destruction of the concrete blocks were carried out. Performed studies and practical tests showed high efficiency and safety of the use of the developed pyrotechnical compositions.

References:
1. Abdullin I.A., Mikryukov K.V., Kharitonova O.Yu. Use of thermal compositions for the destruction of reinforced concrete structures. Vestnik Kazanskogo tekhnologicheskogo universiteta = Bulletin of Kazan Technological University. 2006. № 6. Part 2. pp. 156–163. (In Russ.).
2. Mardasov O.F., Glinskiy V.P., Shalygin N.K., Babintseva V.V., Isakova L.V. Concept of developing a recipe and manufacturing technology for high-detonation emulsion explosives. Vzryvnoe delo = Explosion technology. 2008. № 99–56. pp. 162–170. (In Russ.).
3. Kohga M., Handa S. Thermal Decomposition Behaviors and Burning Characteristics of Composite Propellants Prepared Using Combined Ammonium Perchlorate/Ammonium Nitrate Particles. Journal of Energetic Materials. 2018. Vol. 36. Iss. 1. pp. 93–110. DOI: 10.1080/07370652.2017.1316794
4. Juknelevicius D., Dufter A., Rusan M., Klapötke T.M., Ramanavicius A. Study of Pyrotechnic Blue Strobe Compositions Based on Ammonium Perchlorate and Tetramethylammonium Nitrate. European Journal of Inorganic Chemistry. 2017. № 7. pp. 1113–1119. DOI: 10.1002/EJIC.201601486
5. Bayseytov D.A., Tulepov M.I., Amir Zh.A., Orazbaev A.E., Tursynbek S. Study and Development of the Components of Gas Generator Compositions Based on the Ammonium Nitrate to Improve Blasting Operations. Bezopasnost truda v promyshlennosti = Occupational Safety in Industry. 2021. № 11. pp. 47–52. (In Russ.). DOI: 10.24000/0409-2961-2021-11-47-52
6. Tulepov M.I., Gabdrashova S.E., Rakhova N.M., Sassykova L.R., Baiseitov D.A., Elemesova Z., Korchagin M.A., Sendivelan S., Pustovalov I.O., Mansurov Z.A. Development of gas-generator chemical cartridges working in the mode of non-explosive destructive mixture. Rasāyan Journal of Chemistry. 2018. Vol. 11. № 1. pp. 287–293. DOI: 10.7324/RJC.2018.1112013
7. Tulepov M., Baiseitov D., Sassykova L., Kazakov Y., Gabdrashova S., Mansurov Z., Dalton A. Development and investigation of pyrotechnic gas generating burning compositions. Journal of Chemical Technology and Metallurgy. 2018. Vol. 53. № 2. pp. 281–288. (In Russ.).
8. Denisyuk A.P., E Zo Tve, Chernykh S.V. Investigation of the regularities governing the combustion of propellants with ammonium nitrate. Uspekhi v khimii i khimicheskoy tekhnologii = Advances in Chemistry and Chemical Technology. 2007. № 7. pp. 119–123. (In Russ.).
9. Denisyuk A.P., E Zo Tve, Chzhan Khuey Kun. Combustion of energy compositions based on the active binders with ammonium nitrate of various dispersion. Vestnik kazanskogo tekhnologicheskogo universiteta = Bulletin of Kazan Technological University. 2007. № 3–4. pp. 142–147. (In Russ.).
10. Ermolaev B.S., Shevehenko A.A., Dolgoborodov A.Y., Maklashova I.V. Estimating Chemical Conversion Rates for Composite Explosives on the Basis of Experimental Data on Pseudo-Ideal Detonation. Russian Journal of Physical Chemistry B. 2019. Vol. 13. № 1. pp. 145–155.
11. Viktorov S.B., Gubin S.A., Maklashova I.V., Pepekin V.I. Models of the equations of the products state and methods of the detonation thermodynamic modeling. Yadernaya fizika i inzhiniring = Nuclear Physics and Engineering. 2010. Vol. 1. № 1. pp. 80–96. (In Russ.).
12. Atamanov M.K., Itouyama N., Shotaro T., Amrousse R., Tulepov M.I., Kerimkulova A.R., Hobosyan M., Hori K., Martirosyan K.S., Mansurov Z.A. Investigation of Combustion and Thermal analysis of ammonium nitrate with carbonaceous materials. Combustion Science and Technology. 2016. Vol. 188. Iss. 11–12. pp. 2003–2011. DOI: 10.1080/00102202.2016.1220143
13. Sinogina E.S. Study of combustion ignition of high-energy materials based on the chlorine-free oxidizers: thesis ... Candidate of Technical Sciences. Tomsk, 2006. 142 p. (In Russ.).
14. Bayseytov D.A. Use of gas generator deflagration cartridges based on the ammonium nitrate at the block stone extraction. Khimicheskie tekhnologii funktsionalnykh materialov: materialy III Mezhdunar. Rossiysko-Kazakhstanskoy nauch.-prakt. konf. (Chemical technologies of the functional materials: Materials of the III scientific-practical conference). Novosibirsk: Izd-vo NGTU, 2017. pp. 187–189. (In Russ.).
15. Boldyrev V.V. Thermal decomposition of ammonium perchlorate. Thermochimica Acta. 2006. Vol. 443. № 1. pp. 1–36. DOI: 10.1016/j.tca.2005.11.038
16. Chaturvedi S., Dave P.N. Review on Thermal Decomposition of Ammonium nitrate. Journal of Energetic Materials. 2013. Vol. 31. Iss. 1. pp. 1–26. DOI:10.1080/07370652.2011.573523
DOI: 10.24000/0409-2961-2022-3-14-19
Year: 2022
Issue num: March
Keywords : safety ammonium nitrate pyrocomposition waste polyethylene concrete block
Authors: