Industrial detonating cord flux core prepared from energetic material by-product

A detonating cord and by-product technology, applied in the field of industrial detonating cord cores and industrial detonating cords, can solve the problems of high price of detonating cords and high cost of detonating cords, achieve low cost and improve dispersion the effect of increasing safety

Inactive Publication Date: 2021-10-29
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detonating cord detonating system is one of the four major detonating systems in engineering blasting. It has the characteristics of good safety, reliable transmission, simple operation and convenient use. Sub-detonator or differential tube constitutes differential blasting; it has the advantages of anti-interference of stray current and strong electromagnetic field at the same time, and its disadvantage is mainly that the price of RDX and PETN in the detonating cord is high, resulting in a higher overall cost of detonating cord products

Method used

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  • Industrial detonating cord flux core prepared from energetic material by-product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Put 92% of PETN by-products and 8% of graphite powder into the mixing drum (ball-to-material ratio 3:1) and rotate for 60 minutes. Grind and mix evenly to prepare the detonating cord core. Dosing at 11.5±0.5g / m It is used in cable making machines and extruders to form industrial detonating cords. The industrial detonating cord complies with the performance index of GB / 9786-1999 "Ordinary Detonating Cord".

Embodiment 2

[0018] Add 95% PETN by-products and 5% graphite powder to the mixing drum (ball-to-material ratio 3:1) and rotate for 60 minutes, grind and mix evenly to prepare the detonating cord core. It is used in cable making machines and extruders to form industrial detonating cords. The industrial detonating cord complies with the performance index of GB / 9786-1999 "Ordinary Detonating Cord".

Embodiment 3

[0020] Put 98% PETN by-products and 2% graphite powder into the mixing drum (ball-to-material ratio 3:1) and rotate and mix for 60 minutes, grind and mix evenly to prepare the detonating cord core, with a dosage of 11.5±0.5g / m It is used in cable making machines and extruders to form industrial detonating cords. The industrial detonating cord complies with the performance index of GB / 9786-1999 "Ordinary Detonating Cord".

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Abstract

The invention discloses an industrial detonating cord flux core prepared from an energetic material byproduct, and the industrial detonating cord flux core comprises the following components in percentage by mass: 92-98% of a Teramine byproduct and 2-8% of graphite powder. The detonating cord flux core is prepared by taking the by-product of the energetic material, namely the PETN, as the energetic component and taking the graphite powder as the antistatic agent, so that the PETN by-product is recycled, waste is turned into wealth, various properties of the industrial detonating cord prepared from the PETN by-product are equivalent to those of a standard industrial detonating cord prepared from standard RDX or the PETN, and the product cost is greatly reduced.

Description

technical field [0001] The invention relates to a drug core of an industrial detonating cord, in particular to an industrial detonating cord drug core prepared from energetic material by-products, which belongs to the field of civil blasting equipment. Background technique [0002] PETN (PETN) is one of the important basic energetic materials in the national defense industry. At present, the production process of PETN adopts the direct esterification method of concentrated nitric acid. Pentaerythritol reacts with concentrated nitric acid, and the crude Taian produced is recrystallized from acetone to obtain refined Taian with high melting point, good purity and stable performance. However, after recovering the acetone solvent in the mother liquor after Taian refining, a large amount of solid by-products will remain. According to the current domestic production process and scale, the PETN production line will inevitably produce more than 200 tons of by-products every year. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/32C06C5/04
CPCC06B25/32C06C5/04
Inventor 叶志文
Owner NANJING UNIV OF SCI & TECH
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