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High-energy type coal mine emulsion explosive

An emulsified explosive and high-energy technology, applied in explosives, explosives processing equipment, offensive equipment, etc., can solve problems such as increased crystallization point, shortened shelf life of explosives, and reduced explosive performance of explosives, achieving simple and convenient use, improved explosive performance and The effect of shelf life

Active Publication Date: 2014-01-22
CHINA COAL TECH & ENG GRP HUAIBEIBLASTING TECHN RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the safety of the explosive is satisfied, the explosive performance of the explosive is greatly reduced due to the addition of a large amount of inert inorganic salt flame suppressant
[0003] Disadvantages of the prior art: the existing emulsion explosives allowed in coal mines, no matter powdery explosives or colloidal explosives, are based on adding an inert inorganic alkali metal salt flame suppressant to the water phase to achieve resistance to gas and coal dust. Explosive properties
Not only that, for emulsion explosives, the inorganic flame extinguishing agents added to the aqueous phase solution, such as sodium chloride, potassium chloride, ammonium chloride, etc., which are currently used in practice, all make the crystallization point of the explosive aqueous phase solution Increased, shortened shelf life of explosives

Method used

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  • High-energy type coal mine emulsion explosive

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The raw materials and weights used in the preparation of high-energy coal mine emulsion explosives are as follows

[0045] Ammonium nitrate 67.5kg

[0046] Sodium nitrate 15.0kg

[0047] water 10.5kg

[0048] Oil phase material 2.0kg

[0049] Organic active material 3.0kg

[0050] Water-in-oil emulsifier 2.0kg

[0051] The oil phase materials are paraffin, vaseline, engine oil and No. 70 microcrystalline wax. The dosage of each component is: paraffin 0.5kg, vaseline 0.5kg, engine oil 0.5kg, and No. 70 microcrystalline wax 0.5kg;

[0052] The organic active material is tetradetrafluorohexane.

[0053] The water-in-oil emulsifier is composed of Siben-80 and polyisobutylene succinimide, and the dosage of each component is: Siben-80: 1.5 kg, polyisobutylene succinimide 0.5 kg.

[0054] The operation steps of the method for preparing the above-mentioned high-energy type coal emulsion explosive are as follows:

[0055] (1): Preparation of water phase: Mix and heat ammo...

Embodiment 2

[0061] The raw materials and weights used in the preparation of high-energy coal mine emulsion explosives are as follows

[0062] Ammonium nitrate 71.0kg

[0063] Sodium nitrate 10.0kg

[0064] Flame suppressant 3.0kg

[0065] water 9.5kg

[0066] Oil phase material 5.0kg

[0067] Organic active material 0.5kg

[0068] Water-in-oil emulsifier 1.0kg

[0069] Among them, the flame suppressant is composed of sodium chloride and potassium chloride, and the dosage of each component is: 1.5kg of sodium chloride and 1.5kg of potassium chloride;

[0070] The oil phase material is paraffin, petrolatum, machine oil and No. 75 microcrystalline wax, and the dosage of each component is: 1.25kg of paraffin, 1.25kg of petrolatum, 1.25kg of machine oil, and 1.25kg of No. 75 microcrystalline wax;

[0071] The organic active material is chlorinated paraffin-42;

[0072] The water-in-oil emulsifier is composed of Siben-80 and polyisobutylene succinimide, and the dosage of each component i...

Embodiment 3

[0080] The raw materials and weights used in the preparation of high-energy coal mine powdery emulsion explosives are as follows

[0081] Ammonium nitrate 87.5kg

[0082] Flame suppressant 3.0kg

[0083] water 2.5kg

[0084] Oil phase material 2.5kg

[0085] Organic active material 2.0kg

[0086] Water-in-oil emulsifier 2.5kg

[0087] Wherein the flame suppressant is potassium chloride;

[0088] Described oil phase material is the composite wax 2.5kg that Henan Nanyang Paraffin Wax Fine Chemical Factory produces;

[0089] The organic active material is chlorinated paraffin-52;

[0090] The water-in-oil emulsifier is composed of Siben-80 and polyisobutylene succinimide, and the dosage of each component is: Siben-80: 2.25 kg, polyisobutylene succinimide: 0.25 kg.

[0091] The operation steps of the method for preparing the above-mentioned high-energy type coal emulsion explosive are as follows:

[0092] (1): Water phase preparation: Mix and heat ammonium nitrate, sodium ...

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Abstract

The invention relates to a high-energy type coal mine emulsion explosive which comprises the following materials: ammonium nitrate, sodium nitrate, flame inhibitor, water, oil phase material, organic active material and water-in-oil type emulsifying agent, wherein the ammonium nitrate, the sodium nitrate, the flame inhibitor and the water form aqueous phase; and the oil phase material, the organic active material and the water-in-oil type emulsifying agent form oil phase. The high-energy type coal mine emulsion explosive solves the problem that in order to meet the safety requirement of the existing allowable emulsion explosive technology of coal mines at home and abroad, a great deal of inert inorganic flame inhibitors such as sodium chloride, potassium chloride, ammonium chloride and the like are needed to be added into the aqueous phase, so that the explosion performance of the explosive is greatly reduced. The high-energy type coal mine emulsion explosive realizes the consistency of explosion performance, storage performance and preparation technology between the coal mine type emulsion explosive product and the rock-type emulsion explosive product.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety production, and in particular relates to an emulsion explosive for coal mines. Background technique [0002] Emulsion explosives allowed in coal mines are widely used in coal mine blasting projects. In view of the characteristics of dangerous and explosive substances such as gas and coal dust in coal mines, it is required that in the formulation design of allowed explosives in coal mines, in addition to considering the explosive performance of explosives, Special consideration is given to the explosion suppression safety of explosive explosions on underground explosives during blasting operations. At present, in order to improve the safety level of the flammable gas of emulsion explosives allowed in coal mines, the method adopted is to add 4% to 17% of inorganic alkali metal salt flame suppressants in the water phase, such as sodium chloride, potassium chloride, One or more of ammonium c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B31/28C06B21/00
Inventor 宋家良戴明虎夏斌翟廷海孙玉华
Owner CHINA COAL TECH & ENG GRP HUAIBEIBLASTING TECHN RES INST
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