Emulsion explosive and preparation method thereof

A technology of emulsified explosives and emulsifiers, which is applied to explosives processing equipment, explosives, non-explosives/non-thermic components, etc., can solve problems such as long transportation time of emulsified explosives, decline in the performance of emulsified explosives, and affect the economic benefits of enterprises, and achieve improvement. On-site operating environment, ideal explosion effect, and the effect of improving the intrinsic safety of the industry

Active Publication Date: 2013-06-26
TIANJIN HONGTAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the existing national standards for emulsion explosives have a storage period of 6 months. If the stored emulsion explosives are not sold on time, the storage period of more than 6 months will affect the quality of the explosives, thereby affecting the economic benefits of the enterprise.
At the same time, since the transportation time of some emulsion explosives will be longer, after being transported to the destination, the storage period of the explosives may have exceeded 6 months, resulting in a decline in the performance of the emulsion explosives, which cannot meet the requirements of customers, bringing both enterprises and customers adversely affected

Method used

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  • Emulsion explosive and preparation method thereof
  • Emulsion explosive and preparation method thereof
  • Emulsion explosive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of emulsion explosive, its composition and parts by weight are as follows:

[0042] ⑴Water phase formula:

[0043] Raw material name

Ammonium nitrate (%)

Sodium nitrate (%)

water(%)

Proportion

73

5

15

[0044] ⑵Oil phase formula:

[0045]

[0046] Among them, the composite emulsifier is a mixture of Span 80 and T152 emulsifiers, and the mass ratio of Span 80:T152 is 6:4.

[0047] (3) Glass beads: The amount of glass beads added is 1.2%-1.7% of the total mass of the water phase formula and the oil phase formula.

[0048] The steps of the preparation method of the above-mentioned emulsion explosive are as follows:

[0049] 1. Water phase preparation:

[0050] Take the ammonium nitrate whose appearance is white powdery or granular crystal and whose water content is less than 1.0%, crush it until the block size is no more than 35 mm, add water above 60 ℃, take the sodium nitrate whose appearance is white or light...

Embodiment 2

[0060] A kind of emulsion explosive, its composition and parts by weight are as follows:

[0061] ⑴Water phase formula:

[0062] Raw material name

Ammonium nitrate (%)

Sodium nitrate (%)

water(%)

Proportion

77

5.8

11

[0063] ⑵Oil phase formula:

[0064]

[0065] (3) Glass beads: The amount of glass beads added is 1.2%-1.7% of the total mass of the water phase formula and the oil phase formula.

[0066] The steps of the preparation method of the above-mentioned emulsion explosive are the same as in Example 1.

Embodiment 3

[0068] A kind of emulsion explosive, its composition and parts by weight are as follows:

[0069] ⑴Water phase formula:

[0070] Raw material name

Ammonium nitrate (%)

Sodium nitrate (%)

water(%)

Proportion

78

6

10

[0071] ⑵Oil phase formula:

[0072]

[0073] (3) Glass beads: The amount of glass beads added is 1.2%-1.7% of the total mass of the water phase formula and the oil phase formula.

[0074] The steps of the preparation method of the above-mentioned emulsion explosive are the same as in Example 1.

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Abstract

The invention relates to an emulsion explosive and a preparation method thereof. The emulsion explosive comprises the following components in parts by weight: 70-80 parts of ammonium nitrate, 5-6 parts of sodium nitrate, 10-15 parts of water, 3-4 parts of composite wax, 0.3-0.8 part of engine oil, 1-1.7 parts of composite emulsifying agent, 0.5-1 part of polymer emulsifying agent and 1.2%-1.7% (based on total weight of the components) of glass beads, wherein the composite emulsifying agent is a mixture of Span 80 and T152 emulsifying agent in a weight ratio of 6 to 4. According to the emulsion explosive disclosed by the invention, various indexes satisfy the relevant national regulations, and the performances reach three international standards, the gap distance for sympathetic detonation reaches 5, the performance quality of the explosive is improved and the burst effect is ideal. Moreover, the high polymer emulsifying agent is added to the explosive formula, so that the storage period of the emulsifying explosive is prolonged to one year from half a year, and therefore, the storage cost of the explosive is reduced. Meanwhile, the composite wax and the engine oil are used in the formula, so that the price is low, the resources are extensive and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of industrial explosives, in particular to an emulsion explosive and a preparation method thereof. Background technique [0002] Emulsion explosive is a new type of water-resistant industrial explosive developed in the late 1960s, and it is also a type of aqueous ammonium nitrate explosive. Because of its excellent explosive performance, water resistance, wide source of raw materials, relatively simple process, good production and use safety, low production cost, low environmental pollution, and low concentration of blasting smoke, it has been awarded by various countries. The field of industrial explosives pays attention to and competes for research, and its development is unprecedented, and it has been widely used in engineering blasting. [0003] Emulsion explosives generally refer to a class of water-in-oil emulsion type water-resistant industrial explosives prepared by emulsification technology. The fine drople...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/28C06B23/00C06B21/00
Inventor 张学军铁继红赵旭李双翟艳军赵杰赵阳夏保军
Owner TIANJIN HONGTAI CHEM
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