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Foaming agent for explosive

A foaming agent and explosive technology, applied in the field of special sensitizers for explosives, can solve the problems of affecting the blasting performance of emulsion explosives, poor stability of emulsion explosives, unsatisfactory foaming effect, etc. proper effect

Inactive Publication Date: 2011-05-25
SHAANXI HUAQIN NEW ENERGY TECH CO LTD
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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 mostly inorganic foaming agents or organic foaming agents, which have poor stability when storing emulsion explosives and are not suitable for storage; the foaming time is long, the density is not easy to control, and the safety performance is poor; The foaming effect is not ideal, which will affect the performance of emulsion explosives and blasting

Method used

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  • Foaming agent for explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] 1) Mix 1 g of thiourea, 4 g of potassium nitrite, 25 g of sodium nitrite, and 70 g of water to make 100 g of Agent A; take 9 g of ammonium nitrate, 0.4 g of phosphoric acid, dihydrogen phosphate Ammonium is 1.5 g, sodium thiocyanate is 1 g, citric acid is 2.1 g, glacial acetic acid is 1 g, sodium bicarbonate is 1 g, thiourea is 0.5 g, sodium nitrate is 0.6 g, urea is 1.2 g, water Mix 81.7 g 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) Take 0.5g of thiourea, 3g of potassium nitrite, 20g of sodium nitrite, and 76.5g of water to make 100g of agent A; take 7g of ammonium nitrate, 0.2g of phosphoric acid, diammonium hydrogen phosphate 0.5 g, 0.5 g sodium thiocyanate, 1.8 g citric acid, 0.7 g glacial acetic acid, 0.7 g sodium bicarbonate, 0.2 g thiourea, 0.2 g sodium nitrate, 0.9 g urea, water Mix 87.3g to make 100g of B agent;

[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) Take 1.5g of thiourea, 5g of potassium nitrite, 30g of sodium nitrite, and 63.5g of water to make 100g of agent A; take 11g of ammonium nitrate, 0.6g of phosphoric acid, diammonium hydrogen phosphate 2 g, 1.5 g sodium thiocyanate, 2.5 g citric acid, 1.5 g glacial acetic acid, 1.5 g sodium bicarbonate, 0.9 g thiourea, 1 g sodium nitrate, 1.5 g urea, water Mix 76g to make 100g of B agent;

[0021] 2) Mix the above-mentioned 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 explosive, in particular to a foaming agent for emulsion explosive, which comprises an A agent and a B agent, and the A agent and the B agent are mixed according to the weight ratio of 1: 1.2-1.5, wherein the A agent comprises the following components by weight percent: 0.5%-1.5% of thiourea, 3%-5% of potassium nitrite, 20%-30% of sodium nitrite and 63.5%-76.5% of water; and the B agent comprises the following components by weight percent: 7%-11% of ammonium nitrate, 0.2%-0.6% of phosphoric acid, 0.5%-2% of diammonium phosphate, 0.5%-1.5% of sodium thiocyanate, 1.8%-2.5% of citric acid, 0.7%-1.5% of glacial acetic acid, 0.7%-1.5% of sodium bicarbonate, 0.2%-0.9% of thiourea, 0.2%-1% of sodium nitrate, 0.9%-1.5% of urea and 76%-87.3% of water. The foaming agent has the characteristics of short foaming time, appropriate after-effect, easiness in control of density, good safety performance, long natural storage period and the like.

Description

technical field [0001] The invention relates to a special sensitizer for explosives, in particular to a foaming agent for emulsion explosives. Background technique [0002] At present, the commonly used chemical foaming agents are mostly inorganic foaming agents or organic foaming agents, which have poor stability when storing emulsion explosives and are not suitable for storage; the foaming time is long, the density is not easy to control, and the safety performance is poor; The foaming effect is not ideal, which in turn affects the performance of emulsion explosives and blasting. Contents of the invention [0003] The object of the present invention is to provide a foaming agent for explosives, which has the advantages of short foaming time (short sensitization process time), appropriate aftereffect; easy control of density, good safety performance, and long natural storage period; The explosive sensitized by the foaming agent is not afraid of extrusion, has the charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00
Inventor 马永宁
Owner SHAANXI HUAQIN NEW ENERGY TECH CO LTD
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