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Coal Mine Permissible mixed with a new RDX explosives with detonators

Author: ZhengQiuLi
Tutor: LiuDaBin
School: Nanjing University of Technology and Engineering
Course: Safety Technology and Engineering
Keywords: Flame inhibitors RDX Coal Mine Permissible detonators Aqueous suspension Detonating force Gas safety Component analysis
CLC: TQ564
Type: Master's thesis
Year: 2010
Downloads: 86
Quote: 2
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Abstract


In this paper, the choice of flame inhibitors Coal Mine Permissible the recipe mixed explosives detonators (hereinafter referred to as mine) design and the exploration of the preparation conditions of mixed explosives, developed a new kind of RDX mixed explosives. Drug own nature and detonators press-fit process conditions suppress the mixed explosives detonators on the basis of the impact of the detonator initiation force and the anti-gas performance, and developed a powerful and standard suppressor effect can mine with detonator new RDX mixed explosives. Successfully developed three formulations: RDX accounted for 85 ± 0.5%, flame inhibitors accounted for 5 ± 4 ± 0.5% and accounted for 10 ± 0.5% paraffin; RDX accounted for 85 ± 0.5%, flame inhibitors accounted for 7 ± 0.5% paraffin 8 ± 0.5% and 82 ± 0.5%; RDX flame inhibitors accounted for 9 ± 0.5%, the paraffin Polymer 9 ± 0.5%; Finally, the effective determination of the method of analysis of the content of each component of the mixed explosives . First, conduct research on relevant literature and mine detonator manufacturer flame inhibitors, selected chemically stable, non-hygroscopic, large surface area inert inorganic salts SAN as flame inhibitors. Second, select the aqueous suspension granulation method to prepare novel the RDX explosive composition based on the SAN-suppressor agent selected paraffin as propellant, polymer CZ as the binder, RDX for explosive component, in different the feed ratio under the system got the mixed explosives this recipe. Paraffin as the test proved insensitive agent and binder, the feeding of the flame inhibitors should not exceed 8%; have CZ existence, more than 12% feed ratio of flame inhibitors. Again, three mixed explosives formulations, the mechanical sensitivity special flexor children quite. Paper developed for the preparation of mixed explosives detonators detonators press-fit process using the following conditions to meet the related requirements for the initiation of force and anti-gas performance of \350mg, the charge pressure of 35MPa; explosives 120mg three times bulk point pressure; detonating powder 280mg, charge pressure of 40 MPa. Finally, the forming method for the solvent extraction of the mixed explosives component analysis. The error analysis of the test results show that the accuracy of the method of testing to achieve the standard error is less than 0.005, the relative error of the measured value of each component content of not more than 2.5%. In summary, the developed mine detonators mixed with a new RDX explosives have reached the requirements of this topic for the power of explosives and anti-gas performance.

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CLC: > Industrial Technology > Chemical Industry > Explosives industry, match industry > Rampant explosives
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