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Opencast emulsion explosive and preparation method thereof

An emulsion explosive and open-air technology, applied in explosives and other fields, can solve the problems of hard drug state, high production cost, short storage period, etc., and achieve the effect of high power, high degree of automation, and good water resistance

Active Publication Date: 2013-05-22
LIAONING HONGSHAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an open-air emulsion explosive and its preparation method, which can solve the shortcomings of the existing emulsion explosives such as short storage period, hard drug state, and high production cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An open-air emulsion explosive, the ratio of raw materials is: 70.5% ammonium nitrate, 9.0% sodium nitrate, 12.0% water, 1.8% Span-80, 0.4% soybean phosphorus ester, 1.2% reduced second-line oil, 1.0% diesel oil, and 0.8% paraffin %, microcrystalline wax 0.8%, expanded perlite 2.5%.

[0023] Preparation process steps:

[0024] (1) Water phase preparation

[0025] Weigh 12.0% of water, 70.5% of ammonium nitrate and 9.0% of sodium nitrate according to the weight percentage of the raw material ratio, put them into the water phase melting tank, heat and melt, and keep the temperature at 85°C to 90°C;

[0026] (2) Preparation of oil phase

[0027] Weigh 1.8% of Span-80, 0.4% of soybean phospholipids, 1.2% of second-line oil, 1.0% of diesel oil, 0.8% of paraffin wax and 0.8% of microcrystalline wax into oil In the phase melting tank, heating and melting, the temperature is kept at 85 ℃ ~ 90 ℃;

[0028] (3) Emulsified pharmaceuticals

[0029] The oil phase and water phase...

Embodiment 2

[0032] An open-air emulsion explosive, the raw material ratio is: 70.0% ammonium nitrate, 9.2% sodium nitrate, 12.3% water, 1.7% Span-80, 0.5% soybean phosphorus ester, 1.1% reduced second-line oil, 1.1% diesel oil, 0.7% paraffin %, microcrystalline wax 0.9%, expanded perlite 2.5%.

[0033] Preparation process steps:

[0034] (1) Water phase preparation

[0035] Weigh 12.3% of water, 70.0% of ammonium nitrate and 9.2% of sodium nitrate according to the weight percentage of the raw material ratio, put them into the water phase melting tank, heat and melt, and keep the temperature at 85°C to 90°C;

[0036] (2) Preparation of oil phase

[0037] Weigh 1.7% of Span-80, 0.5% of soybean phospholipids, 1.1% of second-line oil, 1.1% of diesel oil, 0.7% of paraffin wax and 0.9% of microcrystalline wax into oil In the phase melting tank, heating and melting, the temperature is kept at 85 ℃ ~ 90 ℃;

[0038] (3) Emulsified pharmaceuticals

[0039] The oil phase and water phase materia...

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PUM

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Abstract

The invention discloses an opencast emulsion explosive and a preparation method thereof. According to the emulsion explosive, Span-80, soya lecithin, second line distillation oil, diesel oil, paraffin and microcrystalline wax serve as materials, the film-forming strength of the emulsion matrix is improved, the phenomenon that the oil film is deformed or broken in the process of salting out an oxidant aqueous solution which mainly comprises nitrate is effectively avoided, and the product storage period is prolonged. According to the technical scheme, the preparation method comprises the following three steps of preparing an aqueous phase, preparing an oil phase and preparing the emulsion explosive. The opencast emulsion explosive is simple in production process, high in detonation property, safe and reliable in production process and absent in three-waste pollution.

Description

technical field [0001] The invention relates to the field of industrial technology, in particular to an emulsion explosive for open-air blasting and a preparation method thereof. Background technique [0002] Emulsion explosive is a water-in-oil type paste-like water-containing explosive formed by the action of an emulsifier to uniformly disperse fine droplets of an aqueous solution of an oxidant mainly composed of nitrates in an oil-phase continuous medium containing air bubbles or porous substances. At present, the oil phase materials used in open-air emulsion explosives produced at home and abroad mainly include Span-80, paraffin, engine oil, vaseline, microcrystalline wax, etc. The products produced have a short storage period, and the drug state will gradually harden during storage. Not only is it unfavorable for charge during use, but also the explosive performance will be reduced. In addition, the production cost of using this type of oil phase material is relatively...

Claims

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Application Information

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IPC IPC(8): C06B31/28
Inventor 李新富徐桂苹李野李剑飞
Owner LIAONING HONGSHAN CHEM
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