CN102070380A

CN102070380A - Foaming agent for explosive

Info

Publication number: CN102070380A
Application number: CN2010105745991A
Authority: CN
Inventors: 马永宁
Original assignee: SHAANXI HUAQIN NEW ENERGY TECHNOLOGY Co Ltd
Current assignee: SHAANXI HUAQIN NEW ENERGY TECHNOLOGY Co Ltd
Priority date: 2010-12-06
Filing date: 2010-12-06
Publication date: 2011-05-25

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

The whipping agent that a kind of explosive is used

Technical field

The present invention relates to the special-purpose sensitizing agent of explosive, the whipping agent that particularly a kind of emulsion explosive is used.

Background technology

At present, normally used chemical foaming agent mostly is inorganic foaming agent or organic blowing agent, and they exist poor stability during for the storage of emulsion explosive, should not store; Foamed time is long, and density is wayward, poor safety performance; Foaming effect is undesirable, and then influences emulsion explosive and blasting performance.

Summary of the invention

The purpose of this invention is to provide the whipping agent that a kind of explosive is used, it has foamed time short (the sensitizing time is short), and aftereffect is suitable; Density is easy to control, and safety performance is good, and the nature shelf lives is long; Use the explosive after this whipping agent sensitization simultaneously, be not afraid of extruding, characteristics such as it is high to have sudden and violent speed, and brisance is big, and cost is low.

Technical scheme of the present invention is to realize like this, the whipping agent that a kind of explosive is used, it is characterized in that: it is by A agent and B agent, form by weight 1:1.2～1.5 mixed, described A agent is made up of by following weight percentage following component: thiocarbamide is 0.5%～1.5%, potassium nitrite is 3%～5%, Sodium Nitrite is 20%～30%, water is 63.5%～76.5%; Described B agent is made up of by following weight percentage following component: ammonium nitrate is 7%～11%, phosphoric acid is 0.2%～0.6%, Secondary ammonium phosphate is 0.5%～2%, Sodium Thiocyanate 99 is 0.5%～1.5%, citric acid is 1.8%～2.5%, glacial acetic acid is 0.7%～1.5%, sodium bicarbonate is 0.7%～1.5%, thiocarbamide is 0.2%～0.9%, SODIUMNITRATE is 0.2%～1%, urea is 0.9%～1.5%, water is 76%～87.3%.

The invention has the beneficial effects as follows: whipping agent of the present invention is owing to be the composite foamable agent that adopts inorganics and organism to form, its foamed time short (the sensitizing time is short), and aftereffect is suitable; Chemical foaming gas is even, is of moderate size, and is evenly distributed, and density is easy to control; Safety performance is good, and the nature shelf lives is long; Use the explosive after this whipping agent sensitization simultaneously, be not afraid of extruding, characteristics such as it is high to have sudden and violent speed, and brisance is big, and cost is low.

Embodiment

The invention will be further described below in conjunction with embodiment, but following embodiment is not used in restriction practical range of the present invention.

Embodiment 1

1) getting thiocarbamide is that 1 g, potassium nitrite are that 4 g, Sodium Nitrite are that 25 g, water are that 70 g mix the A agent that is made into 100g; Getting ammonium nitrate is that 9 g, phosphoric acid are that 0.4 g, Secondary ammonium phosphate are that 1.5 g, Sodium Thiocyanate 99 are that 1 g, citric acid are that 2.1 g, glacial acetic acid are that 1 g, sodium bicarbonate are that 1 g, thiocarbamide are that 0.5 g, SODIUMNITRATE are that 0.6 g, urea are that 1.2 g, water are that 81.7 g mix the B agent that is made into 100g;

2) getting above-mentioned A agent and B agent mixes and promptly gets whipping agent of the present invention by weight the 1:1.3 ratio.

The consumption of whipping agent and quality index:

Consumption: general A agent add-on is 0.3～0.5%(weight percentage of emulsion explosive), B agent add-on is 1.2～1.5 times of A agent of emulsion explosive.

The quality index of whipping agent (seeing Table 1):

Table 1:

Embodiment 2

1) getting thiocarbamide is that 0.5g, potassium nitrite are that 3 g, Sodium Nitrite are that 20g, water are that 76.5 g mix the A agent that is made into 100g; Getting ammonium nitrate is that 7 g, phosphoric acid are that 0.2 g, Secondary ammonium phosphate are that 0.5 g, Sodium Thiocyanate 99 are that 0.5 g, citric acid are that 1.8 g, glacial acetic acid are that 0.7g, sodium bicarbonate are that 0.7 g, thiocarbamide are that 0.2 g, SODIUMNITRATE are that 0.2 g, urea are that 0. 9g, water are that 87.3g mixes the B agent that is made into 100g;

2) getting above-mentioned A agent and B agent mixes and promptly gets whipping agent of the present invention by weight the 1:1.2 ratio.

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

Embodiment 3

1) getting thiocarbamide is that 1.5g, potassium nitrite are that 5 g, Sodium Nitrite are that 30g, water are that 63.5 g mix the A agent that is made into 100g; Getting ammonium nitrate is that 11 g, phosphoric acid are that 0.6 g, Secondary ammonium phosphate are that 2 g, Sodium Thiocyanate 99 are that 1.5 g, citric acid are that 2.5 g, glacial acetic acid are that 1.5g, sodium bicarbonate are that 1.5 g, thiocarbamide are that 0.9 g, SODIUMNITRATE are that 1 g, urea are that 1. 5g, water are that 76g mixes the B agent that is made into 100g;

2) getting above-mentioned A agent and B agent mixes and promptly gets whipping agent of the present invention by weight the 1:1.5 ratio.

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

Claims

1. whipping agent that explosive is used, it is characterized in that: it is by A agent and B agent, form by weight 1:1.2～1.5 mixed, described A agent is made up of by following weight percentage following component: thiocarbamide is 0.5%～1.5%, potassium nitrite is 3%～5%, Sodium Nitrite is 20%～30%, water is 63.5%～76.5%; Described B agent is made up of by following weight percentage following component: ammonium nitrate is 7%～11%, phosphoric acid is 0.2%～0.6%, Secondary ammonium phosphate is 0.5%～2%, Sodium Thiocyanate 99 is 0.5%～1.5%, citric acid is 1.8%～2.5%, glacial acetic acid is 0.7%～1.5%, sodium bicarbonate is 0.7%～1.5%, thiocarbamide is 0.2%～0.9%, SODIUMNITRATE is 0.2%～1%, urea is 0.9%～1.5%, water is 76%～87.3%.