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Emulsion explosive for deep water and preparation method thereof

A technology of emulsified explosives and deep water, which is applied in the direction of explosives, etc., can solve the problems of increased blasting costs, large block size, and high unit consumption of explosives, and achieve the effects of increased explosive power and sensitivity, uniform oil phase dispersion, and high explosive sensitivity

Active Publication Date: 2014-04-09
汉通控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (2) The sensitivity of explosives decreases with the water depth, and the detonation performance of explosives is greatly weakened. It can be detonated for 6 meters on land, and the detonation can be reduced to 3 to 4 meters below the water depth of 15 meters. It is necessary to carry out secondary blasting, and then carry out satellite positioning drilling, which greatly increases the cost of blasting, and unexploded explosives are often excavated, which poses a safety hazard;
[0010] (3) The explosive power of explosives decreases continuously with the increase of water depth, and the unit consumption of explosives is relatively large, which increases the cost of blasting;
[0011] (4) The sensitivity of explosives weakens with the water depth, and the detonating equipment should adopt TNT high-energy detonation, which increases the pollution and cost to the environment;
[0012] (5) The detonation velocity of explosives decreases with the detonation energy of the front explosives, and the detonation speed of the rear explosives also becomes smaller and smaller, resulting in the bottom of the blast hole, which has a foundation and a large block, which brings many problems to the excavation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1. preparation embodiment (small sample)

[0036] a) Add 22.5g of SP80 (Siben) and 45g of composite wax into 1# reactor, start the agitator, heat to 85°C and set aside;

[0037] b) Use 91g of water, 793g of ammonium nitrate, 114g of sodium nitrate, and 2g of sodium methylene bis-tetrasulfonate to prepare the water phase, heat it to 105-115°C, and slowly add it into the 1# reaction kettle. After the emulsification is completed, Cooling water is added to the interlayer of the reaction kettle, the latex matrix is ​​cooled to below 55° C., and 30 g of perlite is added to prepare the deep water (deep sea) emulsion explosive of the present invention.

Embodiment 2

[0038] Embodiment 2. preparation embodiment (small sample)

[0039] a) Add 22.5g of T154 (polyisobutylene bisuccinimide) and 45g of composite wax into 1# reactor, start the agitator, heat to 85°C and set aside;

[0040] b) Prepare the water phase with 91g water, 793g ammonium nitrate, 114g sodium nitrate, and 2g dispersant NNO, heat it to 105-115°C, and start to slowly add it to the 1# reactor. After the emulsification is completed, add cooling to the interlayer of the reactor Water, the latex base is cooled to below 55°C, and 30g of perlite is added to produce the deep water (deep sea) emulsion explosive of the present invention.

Embodiment 3

[0041] Embodiment 3. preparation embodiment (small sample)

[0042] a) Use T154 (polyisobutylene bis-succinimide) and SP80 (Suben) each 50% to prepare 22.5g of composite emulsifier and 45g of composite wax, add it to 1# reactor, start the agitator, and heat to Stand-by after 85°C;

[0043] b) prepare the water phase with 91g water, 793g ammonium nitrate, 114g sodium nitrate, 2g anionic surfactant (sodium methylene bis-tetrasulfonate and dispersant NNO in a ratio of 1: 1), and heat to 105~115°C, start slowly adding to 1# reactor, after the emulsification is completed, add cooling water to the interlayer of the reactor, cool the latex matrix to below 55°C, add 30g of perlite, and then make the deep water (deep sea ) emulsion explosives.

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Abstract

The invention discloses an emulsion explosive mainly used for deep water (deep sea) blasting. The emulsion explosive is prepared by mixing emulsion matrix and a sensitizing agent and sensitizing the emulsion matrix. The emulsion matrix is prepared by emulsifying an aqueous phase and an oil phase, wherein the aqueous phase contains an anionic surfactant which accounts for 0.1 to 0.2 percent of the total weight of the aqueous phase; and the anionic surfactant is one or a mixture of more than two of sodium methylene bis-m-naphthalene sulfonate, sodium methylene dinaphthalenesulfonate, a naphthalene sulfonate formaldehyde condensate, a dispersant NNO or 2-naphthalene sulfonic acid. The explosion power and sensitivity of the emulsion explosive are superior to those of the conventional product. The invention also provides a preparation method for the emulsion explosive.

Description

technical field [0001] The invention relates to an emulsion explosive, in particular to a deep-sea (deep water) emulsion explosive in the field of industrial explosives, and a preparation method thereof. Background technique [0002] In recent years, my country has strengthened the construction of coastal (inland river) wharves, waterways and national defense projects, and the number of blasting projects in deep sea (deep water) (below 10 meters) has increased day by day, but the explosives used in deep sea (deep water) blasting have always used ordinary emulsion explosives . In deep-sea (deep water) blasting, the sensitivity of existing common emulsion explosives decreases with the increase of water level, and the explosive force decreases, which seriously affects the construction quality and progress. Blasting engineering technicians hope to develop deep-water emulsion explosives. [0003] In the early days of reform and opening up, military explosives were generally used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B31/28
Inventor 邢光武陈焕波刘祯祥林振贵王镇城蒋加林黎柏燕
Owner 汉通控股集团有限公司
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