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Emulsion explosive used in deep water blasting and preparation method thereof

A technology of emulsified explosives and composite emulsifiers, which is applied to explosives, non-explosive/non-thermic components, offensive equipment, etc., and can solve the problems affecting underwater construction, detonation velocity, detonation drop, emulsification effect of emulsified explosives, explosive performance and stability Unsatisfactory properties and other problems, to achieve the effect of high strength and stability, strong emulsifying ability, and strong stability

Inactive Publication Date: 2012-09-19
GUANGDONG HONGDA BLASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the water depth of general emulsion explosives exceeds 10m, the detonation velocity and detonation will drop significantly, and even the phenomenon of detonation failure or semi-detonation will occur, which seriously affects underwater construction.
[0003] The emulsion explosives in the prior art, due to the use of a single emulsifier, lead to unsatisfactory emulsification effects, explosive performance and stability of the emulsion explosives, which cannot meet the needs of actual underwater blasting, especially the application of deep water blasting need

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A compound emulsifier, which is prepared by mixing 30kg of sp-80, 15kg of T152 and 5kg of soybean lecithin.

Embodiment 2

[0032] A compound emulsifier, which is made by mixing 16.73kg of sp-80, 4.18kg of T152 and 2.09kg of soybean lecithin.

Embodiment 3

[0034] A deep-water emulsion explosive prepared according to the following method:

[0035] (1) Water phase preparation: add 80kg of water to the water phase dissolution tank, stir and add 720kg of ammonium nitrate, 100kg of sodium nitrate, 2kg of K 12 , stir to dissolve, and heat to keep the temperature at 85~90°C, filter to the storage tank, and keep the temperature at 85~90°C, which is the water phase;

[0036] (2) Take 47kg MF-type emulsified explosive special compound grease, 20kg paraffin wax, 5.8kg microcrystalline wax, 5.4kg vaseline, and 23kg compound emulsifier prepared in Example 2, add them to the melting tank, filter after melting and put them into the oil phase storage tank Stir in the medium and keep it at 85~90°C, which is the oil phase;

[0037] (3) Emulsification: The water phase and the oil phase are pumped into the emulsifier for emulsification. The power of the emulsifier is 15kw, the rotation speed is 1480r / min, the line speed is 15m / s, and the emulsific...

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PUM

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Abstract

The invention provides an emulsion explosive, which is prepared by forming a latex matrix through an emulsion effect on a water phase and an oil phase and then sensitizing the latex matrix, wherein the mass ratio of the oil phase to the water phase is 89-94:6-11; the water phase is prepared from ammonium nitrate, sodium nitrate, a crystal form improver and water in the weight ratio of 65-74:8-13:0.1-0.3:8-11; and the oil phase is prepared from emulsion explosive special composite grease, wax, microcrystalline wax, vaseline and a composite emulsifier according to the weight ratio of 2.0-4.7:1-2.5:0.4-1.2:0.5-2:2-3. According to the emulsion explosive, the particle diameter of the emulsified latex matrix is less than 3 mum by using an emulsifier with superior performance; and after physical sensitization of pearl sand, the emulsion explosive with water resistance which is suitable for deep water blasting is prepared. The invention also provides a preparation method of the emulsion explosive.

Description

technical field [0001] The invention relates to the technical field of emulsion explosive manufacturing technology, in particular to an emulsion explosive used in deep water blasting and a manufacturing method thereof. Background technique [0002] Since the advent of emulsion explosives, it has attracted the attention of people in the industry because of its good safety performance, simple process, wide source of raw materials and excellent water resistance. However, due to the special structure of emulsion explosives, when the external pressure changes, the emulsion explosives Sensitivity and explosive performance will also change. At present, when the water depth of general emulsion explosives exceeds 10m, the detonation velocity and detonation will be greatly reduced, and even the phenomenon of detonation failure or half-explosion may occur, which seriously affects underwater construction. [0003] The emulsion explosives in the prior art, due to the use of a single emu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00
Inventor 开俊俊郑炳旭李战军韦锦初刘翼
Owner GUANGDONG HONGDA BLASTING
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