A packaged emulsified ammonium oil explosive and its preparation method

A technology of ammonium oil explosives and emulsifiers, applied in explosives processing equipment, explosives, offensive equipment, etc., can solve problems such as inability to apply off-site mixing occasions, affect product safety storage, and reduce product detonation sensitivity

Active Publication Date: 2019-04-26
SHIJIAZHUANG SUCCESS MACHINERY ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the mixed use of emulsified matrix and ammonium nitrate particles mixed with diesel oil is used in the field mixing operation. The emulsified ammonium oil explosives and heavy ammonium oil explosives prepared by it have a storage period of 3 days to 15 days. Cannot be used in off-site mixing occasions
There are also some companies that prepare packaged emulsified ammonium oil explosives by mixing them with ammonium nitrate granules mixed with diesel oil at a high temperature (90-110°C) in the latex matrix, then packing them into molded rolls, and then immersing them in water to cool them down. With thermal insulation properties, it is difficult to cool down the core of the medicine roll with a large diameter, resulting in continuous high temperature of the finished product after packaging, which in turn affects the safe storage of the product and reduces the detonation sensitivity of the product

Method used

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  • A packaged emulsified ammonium oil explosive and its preparation method
  • A packaged emulsified ammonium oil explosive and its preparation method
  • A packaged emulsified ammonium oil explosive and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: This example is carried out on the production line of the emulsion explosive experiment. Ammonium nitrate, sodium nitrate, and water are made into an aqueous phase solution according to the ratio of the formula, and the temperature is raised to 97°C for later use. The composite wax and emulsifier are prepared according to the formula. The ratio is made into an oil-phase molten liquid, and the temperature is raised to 95°C for later use. The water and oil phase liquids are transported to the static emulsifier according to a certain ratio through their respective pumps for emulsification. After the emulsified latex matrix is ​​cooled to 70°C on the steel belt cooler, it is sent to the powder filling machine by the belt conveyor. in the hopper. Latex matrix formula is as follows Table 1:

[0021] Table 1: Latex Matrix Formulations

[0022] components

Formula ratio (%)

ammonium nitrate

75

sodium nitrate

10

water

9.5

...

Embodiment 2

[0033] Embodiment 2: The formula of latex matrix used in this embodiment is shown in Table 5, and the production process is the same as in Example 1. The temperature of the latex matrix is ​​controlled at 50° C., and the formula of emulsified ammonium oil explosives has been changed. The formula is shown in Table 6. Mix After the temperature is 40°C:

[0034] Table 5: Embodiment 2 latex matrix formula

[0035] components

Formula ratio (%)

ammonium nitrate

85

water

8.5

Emulsifier (SP-80)

2.5

Composite wax

4

[0036] Table 6: Formula of embodiment 2 emulsified ammonium oil explosives

[0037] components

Formula ratio (%)

Latex base

79.5

Ammonium Nitrate Granules

19

Combustible agent (diesel)

1

Foaming agent (sodium nitrite solution)

0.2

Foam accelerator (citric acid solution)

0.3

[0038] Embodiment 2 emulsified ammonium oil explosive performance and st...

Embodiment 3

[0041] Embodiment 3: This embodiment is carried out on the production line of the emulsion explosive experiment. Ammonium nitrate, sodium nitrate, and water are made into an aqueous phase solution according to the ratio of the formula, and the temperature is raised to 97°C for later use. The composite wax and emulsifier are prepared according to the formula. The ratio is made into an oil-phase molten liquid, and the temperature is raised to 95°C for later use. The water and oil phase liquids are transported to the static emulsifier according to a certain ratio through their respective pumps for emulsification. After the emulsified latex matrix is ​​cooled to 60°C on the steel belt cooler, it is sent to the powder filling machine by the belt conveyor. in the hopper. Latex matrix formula is as follows Table 8:

[0042] Table 8: Example 3 latex matrix formulation

[0043] components

[0044] At the same time, the foaming agent and the foaming accelerator are sent into...

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Abstract

The invention relates to a packaged emulsified ammonium nitrate fuel oil explosive, and a preparation method thereof. The packaged emulsified ammonium nitrate fuel oil explosive comprises, by weight, 55.6 to 79.5% of a latex matrix, 17.2 to 38% of ammonium nitrate particle, 1 to 5.6% of a combustible agent, 0.2 to 0.6% of a foaming agent, and 0.2 to 0.6% of a foaming promoter. The preparation method comprises following steps: the temperature of emulsified latex matrix is controlled to be 50 to 70 DEG C; in a mixer, the emulsified latex matrix, the foaming agent, the foaming promoter, and ammonium nitrate particle mixed with the combustible agent are mixed and then packaging is carried out so as to obtain the packaged emulsified ammonium nitrate fuel oil explosive. The preparation method is capable of reducing the total water content of explosive, improving explosive capacity of explosive, reducing the content of expensive composite wax, the combustible agent, and an emulsifier in explosive formula, and reducing production cost of explosive. The packaged emulsified ammonium nitrate fuel oil explosive is long in storage period (longer than 4 months); application range is wide; and the packaged emulsified ammonium nitrate fuel oil explosive is especially suitable for blasting operation with high requirements on explosive capacity and water resistance.

Description

technical field [0001] The invention relates to the technical field of emulsion explosives, in particular to a packaged emulsified ammonium oil explosive and a preparation method thereof. Background technique [0002] Due to its outstanding adaptability and safety performance, emulsion explosives have become the main varieties of industrial explosives after nearly 40 years of vigorous development. As a kind of water-containing explosive, its water content is about 9-15%, so its explosive power is limited to a certain extent. Compared with powdered explosives and other products with low water content, its working ability is lower, and its application range has certain limitations. sex. And reducing the water content in the latex matrix will affect the safety in the production process, and will also reduce the storage performance of the packaged emulsion explosive. Therefore, adding solid ammonium nitrate particles outside the latex matrix is ​​a better way to increase the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B31/30C06B21/00
CPCC06B21/00C06B31/30
Inventor 唐秋明吴应飙周政辉吴我长
Owner SHIJIAZHUANG SUCCESS MACHINERY ELECTRICAL
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