Study of non-conventional fuels for explosives mixes

Rem: Revista Escola de Minas

Salatiel Assis Resende²  Valdir Costa E Silva¹  Hernani Mota De Lima¹ 

[1] ,PPGEM UFOP Departamento de Mineração

关键词: ANFO;    blasting;    alternative fuels;    biomass;    ANFO;    desmonte;    combustíveis alternativos;    biomassa;   

DOI  :  10.1590/S0370-44672014000300009

来源: SciELO

【 摘 要 】

The use of ammonium nitrate and fuel oil (ANFO) results in low cost blasting. Such costs may be further reduced by replacing fuel oil with alternative fuels such as biomass (biodiesel, rice straw, corn cob, sugar cane bagasse) and tires residue. This paper investigates the use of other fuels instead of fuel oil by measuring the detonation velocity (VOD) and verifying the importance of these fuels in an explosive mixture. Except for biodiesel, all the tests conducted for the mixture of ammonium nitrate and alternative fuels showed poor performance when compared with ANFO. The achieved percentage of detonation velocity (VOD) of the mixtures in relation to the ANFO were 55.4% for ammonium nitrate + rice straw, 64.9% for ammonium nitrate + corn cob, 70.1% for ammonium nitrate + sugar cane bagasse, 74.4% for ammonium nitrate + tires residue and 93.7% for ammonium nitrate + biodiesel. This study indicates that the methodology proposed can be applied as a reference for determination and preparation of explosive mixtures of fuel and oxidizing agents since in all the tests conducted the detonation of the charges occurred.

【 授权许可】

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