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Emulsion explosive and its preparation method

A technology of emulsified explosives and emulsifiers, which is applied in explosives and other fields, can solve the problems of high activity of aluminum powder and affect safety, and achieve stable product quality, simple and safe production process, and good blasting effect

Active Publication Date: 2021-12-07
江西萍乡国泰六六一科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aluminum powder has high activity and is easy to react with acid, alkali and oxygen. The storage and addition of aluminum powder to explosives will affect the safety of the entire production process.

Method used

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Examples

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Effect test

preparation example Construction

[0038] The invention also provides a preparation method of the emulsion explosive of the invention.

[0039] The preparation method of emulsion explosive of the present invention comprises the steps:

[0040] (1) Put ammonium nitrate and sodium nitrate in water, dissolve at 100-110°C, add surfactant and mix evenly, then add titanium dioxide, mix evenly, and keep warm for 5-20min to obtain water phase material;

[0041] (2) Melt and mix compound wax, refined paraffin wax, microcrystalline wax and engine oil at 100-110°C, add titanium dioxide and stir for 5 minutes, then add S-80 emulsifier and LR-1 emulsifier, and mix well to obtain oil Phase materials and keep warm for 5-10 minutes;

[0042] (3) Add the water-phase material to the oil-phase material, emulsify at 100-150° C. to obtain an emulsified matrix, and then add a foaming agent for sensitization to obtain an emulsified explosive.

[0043] In a specific embodiment of the present invention, in order to better mix and dis...

Embodiment 1

[0048] Obtain the emulsion explosive according to the following steps:

[0049] Step 1: measure respectively according to the following formula: 80 parts by weight of ammonium nitrate, 4 parts by weight of sodium nitrate, 8 parts by weight of titanium oxide, 8 parts by weight of water, and 0.5 parts by weight of sodium dodecylsulfonate.

[0050] Step 2: Put ammonium nitrate and sodium nitrate in water according to the above formula in the water phase tank, stir and dissolve at 100°C, add water phase surfactant and mix evenly, then add titanium dioxide, and keep warm for 18 minutes to obtain the water phase solution.

[0051] Step 3: Measure respectively according to the following formula: 10 parts by weight of compound wax, 10 parts by weight of fully refined paraffin wax, 20 parts by weight of microcrystalline wax, 20 parts by weight of machine oil, 25 parts by weight of S-80 emulsifier, 11 parts by weight of LR-1 emulsifier parts by weight, 4 parts by weight of titanium oxid...

Embodiment 2

[0057] Obtain the emulsion explosive according to the following steps:

[0058] Step 1: Measure according to the following formula: 78 parts by weight of ammonium nitrate, 5 parts by weight of sodium nitrate, 7 parts by weight of titanium oxide, 10 parts by weight of water, and 0.5 parts by weight of sodium dodecylsulfonate.

[0059] Step 2: Put ammonium nitrate and sodium nitrate in water according to the above formula in the water phase tank, stir and dissolve at 110°C, add water phase surfactant and mix evenly, then add titanium dioxide, and keep warm for 20 minutes to obtain the water phase solution.

[0060] Step 3: Measure respectively according to the following formula: 10 parts by weight of compound wax, 10 parts by weight of semi-refined paraffin wax, 20 parts by weight of microcrystalline wax, 20 parts by weight of machine oil, 25 parts by weight of S-80 emulsifier, 11 parts by weight of LR-1 emulsifier parts by weight, 4 parts by weight of titanium oxide.

[0061] ...

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Abstract

The invention relates to emulsion explosives and a preparation method thereof, belonging to the technical field of emulsion explosives. The technical problem solved by the invention is to provide a high-performance emulsion explosive. The explosive is made of the following components by weight: 92.8 to 93.8 parts of water phase material, 6.2 to 7.2 parts of oil phase material, and 0.3 to 0.45 parts of foaming agent; the water phase material includes the following components by weight: nitric acid 75-84 parts of ammonium, 2-5 parts of sodium nitrate, 6-11 parts of titanium dioxide, 0.8-1.2 parts of surfactant, 9-12 parts of water; the oil phase material includes the following components by weight: composite wax 8-12 parts, refined paraffin wax 8-12 parts, microcrystalline wax 15-25 parts, engine oil 15-25 parts, S-80 emulsifier 20-30 parts, LR-1 emulsifier 8-15 parts, titanium oxide 2 ~ 6 servings. The explosive of the present invention has high explosive power, detonation velocity ≥ 5000m / s, power ≥ 350mlm / s, and explosive force of more than 17mm. The product quality is stable, the validity period is more than 6 months, the blasting effect is good, and the explosive does not need to add aluminum powder. Its production The process is simple and safe.

Description

technical field [0001] The invention relates to emulsion explosives and a preparation method thereof, belonging to the technical field of emulsion explosives. Background technique [0002] Emulsion explosive is a new type of industrial explosive developed from the 1970s to the end of the 1980s. Due to its unique physical structure, this kind of explosive has excellent water resistance, more complete explosion reaction, safe manufacture, transportation and use, and good mine blasting effect. [0003] Different rocks require explosives with different properties. For example, for hard rocks, after blasting, it is required to have uniform block size, large block rate, low cost, and easy shoveling. At present, for soil and rock blasting, the national standard (GB 28286-2012 General Technical Specifications for Industrial Explosives) specifies the standards for Class I rock explosives (power 330mL, detonation velocity not less than 4500m / s, and intensity not less than 14mm). Whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B31/28
CPCC06B31/28
Inventor 黄平廖丽珍
Owner 江西萍乡国泰六六一科技有限公司
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