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Emulsion explosive used in underground mine and preparation method of emulsion explosive

A technology for emulsified explosives and underground mines, which is applied in explosives, non-explosive/non-thermic components, offensive equipment, etc. It can solve the problems of powdery explosives easy to powder, emulsion explosives with low viscosity and fluidity, and poor blasting effect

Active Publication Date: 2019-08-23
湖北东神楚天化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, and propose an emulsion explosive for underground mining, which has low viscosity and good fluidity, and also avoids the problem that the powdery explosive is easy to return to powder, resulting in poor blasting effect; the present invention The technical scheme of the invention also provides a method for preparing emulsion explosives for underground mines

Method used

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  • Emulsion explosive used in underground mine and preparation method of emulsion explosive
  • Emulsion explosive used in underground mine and preparation method of emulsion explosive
  • Emulsion explosive used in underground mine and preparation method of emulsion explosive

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preparation example Construction

[0021] The embodiment of the present invention also provides a kind of preparation method of underground mining emulsion explosive, comprises the steps:

[0022] (1) prepare materials by weight percentage;

[0023] (2) After mixing ammonium nitrate and water, stir at 85-90°C until the ammonium nitrate is completely dissolved, then add thiourea to the mixed solution, stir and mix evenly, then add acetic acid and anhydrous sodium carbonate to the mixed solution in turn, to obtain water phase material;

[0024] (3) Mix composite wax, paraffin wax, microcrystalline wax, machine oil, polyisobutenyl succinimide, hydrogenated castor oil and Span-80, and heat to 40-45°C to obtain an oil phase material;

[0025] (4) Emulsify the water-phase material and the oil-phase material into an emulsified matrix at 85-95°C, store them in plastic barrels for later use or directly pump them into the silo of the charging vehicle through the pumping system for later use; The emulsified matrix in th...

Embodiment 1

[0031] Embodiment 1 of the present invention provides a kind of underground mining emulsion explosive, wherein,

[0032] The water phase material consists of the following components in terms of weight percentage: 83% of ammonium nitrate, 0.25% of thiourea, 0.17% of acetic acid, 0.03% of anhydrous sodium carbonate, and water added to 100%.

[0033] The oil phase material is composed of the following components in weight percentage: 25% composite wax, 17.5% paraffin wax, 4.5% microcrystalline wax, 0.2% motor oil, 8% polyisobutenyl succinimide, 2% hydrogenated castor oil, Span-80 added to 100%.

[0034] The sensitizing material consists of the following components in weight percentage: 92% of sodium nitrite and 8% of water.

[0035] The water phase material, the oil phase material and the sensitizing material are mixed according to a weight ratio of 88.5:11.5:0.62.

[0036] The emulsion explosive for underground mining is prepared by the following method:

[0037] (1) Mix amm...

Embodiment 2

[0042] Embodiment 2 of the present invention provides a kind of underground mining emulsion explosive, wherein,

[0043] The water phase material consists of the following components in terms of weight percentage: 82.5% of ammonium nitrate, 0.25% of thiourea, 0.16% of acetic acid, 0.03% of anhydrous sodium carbonate, and water added to 100%.

[0044] The oil phase material is composed of the following components in weight percentage: 22% composite wax, 17% paraffin wax, 4.3% microcrystalline wax, 0.1% machine oil, 7.5% polyisobutenyl succinimide, 1% hydrogenated castor oil, Span-80 added to 100%.

[0045] The sensitizing material consists of the following components in weight percentage: 91% of sodium nitrite and 9% of water.

[0046] The water phase material, the oil phase material and the sensitizing material are mixed in a weight ratio of 85:15:0.4.

[0047] The emulsion explosive for underground mining is prepared by the following method:

[0048] (1) Mix ammonium nitra...

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Abstract

The invention discloses an emulsion explosive used in an underground mine. The emulsion explosive comprises an aqueous-phase material, an oil-phase material and a sensitized material, wherein the oil-phase material comprises 0.5-5% of hydrogenated castor oil. According to the emulsion explosive used in the underground mine provided by the invention, 0.5-5% of the hydrogenated castor oil is added into the oil-phase material, so that the emulsion explosive has proper viscosity, and the problems that pumping pressure is increased and use safety is reduced because the emulsion explosive has too high viscosity are avoided; too low viscosity of the emulsion explosive is not conducive to adhesion of the emulsion explosive in blastholes; and the emulsion explosive has good thixotropic properties,thereby facilitating adhesion of the emulsion explosive in the blastholes, and improving explosive loading efficiency. The invention also provides a preparation method of the emulsion explosive used in the underground mine.

Description

technical field [0001] The invention belongs to the technical field of emulsion explosives, and in particular relates to an emulsion explosive for underground mining and a preparation method thereof. Background technique [0002] Underground blasting is often encountered in mining and other projects. For deep hole blasting, choose to charge upwards for deep holes. When charging upwards, because the traditional emulsion explosives are colloidal, they have high viscosity and poor fluidity. , its pumping problem has not been effectively solved, so the blasting charges in underground mines are still based on powdered explosives. Pneumatic mechanical charging is used to load powdered explosives, and powdered explosives, because the powder is not viscous, the phenomenon of drug return is serious, especially when filling the upward hole, the rate of drug return and drop rate is as high as 30-40% under normal circumstances. %, serious waste of explosives. [0003] Due to the serio...

Claims

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Application Information

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IPC IPC(8): C06B23/00C06B31/28
CPCC06B23/00C06B31/28
Inventor 卢光明吕为胡方杰武江刘广王起洲
Owner 湖北东神楚天化工有限公司
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