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High-efficiency foaming agent for explosives

A foaming agent and high-efficiency technology, which is applied in the field of special sensitizers for emulsion explosives, can solve the problems of poor storage stability of emulsion explosives, affect the blasting performance of emulsion explosives, and unsatisfactory foaming effects, etc., and achieve long natural storage period and weak acidity , The effect of fast foaming speed

Inactive Publication Date: 2015-06-24
马永宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used chemical foaming agents are divided into inorganic foaming agents or organic foaming agents. Inorganic foaming agents have a strong promoting effect, strong acidity, and fast foaming, but have poor storage stability for emulsion explosives.
The effect of organic foaming agent is small, but the foaming is slow, the after effect is large, and the foaming effect is not ideal, which in turn affects the performance of emulsion explosives and blasting

Method used

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  • High-efficiency foaming agent for explosives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] 1) Mix 1 g of thiourea, 4 g of potassium nitrite, 1.2 g of urea, 25 g of sodium nitrite, and 68.8 g of water to make 100 g of agent A; take 0.8 g of nitric acid and 9 g of ammonium nitrate g, ammonium chloride is 0.3 g, phosphoric acid is 0.4 g, diammonium hydrogen phosphate is 1.5 g, ammonium thiocyanate is 1.5 g, citric acid is 2.1 g, glacial acetic acid is 1 g, urea nitrate is 2 g, urea is 1.2 g and 80.2 g of water are mixed to make 100 g of agent B;

[0009] 2) Mix the above-mentioned agent A and agent B at a weight ratio of 1:1.3 to obtain the blowing agent of the present invention.

[0010] The amount and quality index of blowing agent:

[0011] Dosage: Generally, the amount of agent A added is 0.3-0.5% (percentage by weight) of the emulsion explosive, and the amount of agent B added is 1.2-1.5 times that of agent A of the emulsion explosive.

[0012] Quality index of blowing agent (see Table 1):

[0013] Table 1:

[0014]

Embodiment 2

[0016] 1) Mix 0.5 g of thiourea, 3 g of potassium nitrite, 0.9 g of urea, 20 g of sodium nitrite, and 75.6 g of water to make 100 g of agent A; take 0.7 g of nitric acid and 7 g of ammonium nitrate g, ammonium chloride is 0.2 g, phosphoric acid is 0.2 g, diammonium hydrogen phosphate is 0.5 g, ammonium thiocyanate is 0.1 g, citric acid is 1.8 g, glacial acetic acid is 0.7 g, urea nitrate is 1.5 g, urea is 0.9 g and 86.4 g of water are mixed to form 100 g of agent B;

[0017] 2) Mix the above-mentioned agent A and agent B at a weight ratio of 1:1.2 to obtain the blowing agent of the present invention.

[0018] The consumption and quality index of whipping agent are with embodiment 1.

Embodiment 3

[0020] 1) Mix 1.5g of thiourea, 5g of potassium nitrite, 1.5g of urea, 30g of sodium nitrite, and 62g of water to make 100g of agent A; take 1g of nitric acid and 11g of ammonium nitrate g, ammonium chloride is 0.5 g, phosphoric acid is 0.6 g, diammonium hydrogen phosphate is 2 g, ammonium thiocyanate is 2.5 g, citric acid is 2.5 g, glacial acetic acid is 1.5 g, urea nitrate is 2.5 g, urea is 1.5 g and 74.4 g of water are mixed to make 100 g of agent B;

[0021] 2) Mix the above agent A and agent B at a weight ratio of 1:1.5 to obtain the foaming agent of the present invention.

[0022] The consumption and quality index of whipping agent are with embodiment 1.

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Abstract

The invention relates to a special sensitizer for emulsion explosives, particularly a high-efficiency foaming agent for explosives. The high-efficiency foaming agent for explosives is prepared by mixing a component A and a component B according to the weight ratio of 1:(1.2-1.5). The component A is prepared from the following components in percentage by weight: 0.5-1.5% of thiocarbamide, 3-5% of potassium nitrite, 0.9-1.5% of urea, 20-30% of sodium nitrite and 62-75.6% of water. The component B is prepared from the following components in percentage by weight: 0.7-1% of nitric acid, 7-11% of ammonium nitrate, 0.2-0.5% of ammonium chloride, 0.2-0.6% of phosphoric acid, 0.5-2% of ammonium monoacid phosphate, 0.1-2.5% of ammonium thiocyanate, 1.8-2.5% of citric acid, 0.7-1.5% of glacial acetic acid, 1.5-2.5% of urea nitrate, 0.9-1.5% of urea and 74.4-86.4% of water. The invention has the characteristics of high foaming speed, weak acidity, high storage stability, long natural storage period, small aftereffect, favorable foaming effect and the like.

Description

technical field [0001] The invention relates to a special sensitizer for emulsion explosives, in particular to a high-efficiency foaming agent for explosives. Background technique [0002] At present, the commonly used chemical foaming agents are divided into inorganic foaming agents or organic foaming agents. Inorganic foaming agents have a strong promoting effect, strong acidity, and fast foaming, but have poor storage stability for emulsion explosives. The organic foaming agent has a small effect, but the foaming is slow, the after effect is large, and the foaming effect is not ideal, which in turn affects the emulsion explosive and blasting performance. Contents of the invention [0003] In order to solve the above technical problems, the purpose of the present invention is to provide a high-efficiency foaming agent for explosives, which has the advantages of fast foaming speed, weak acidity, good storage stability, long natural storage period, up to 1 year; The react...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B23/00
Inventor 马永宁
Owner 马永宁
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