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Foaming agent for emulsion explosive

A technology of emulsified explosives and foaming agents, applied in explosives, non-explosive/non-thermic components, offensive equipment, etc., can solve the problem of difficult to achieve emulsified explosive charge sealing, increase energy consumption and production management costs, and affect the blasting of emulsified explosives Performance and other issues, to achieve the effect of stable storage, long natural storage period and moderate foaming temperature

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

At present, the commonly used chemical foaming agent exists, the foaming speed is slow, resulting in interruption of the process, it is difficult to realize the charging and sealing of the emulsion explosive, and the continuous production of packaging affects the production efficiency, and the corresponding heat preservation process and equipment increase the capacity. Consumption and production management costs; the foaming effect is not ideal, which in turn affects the performance of emulsion explosives and blasting; the "after effect" effect is large, the density is not easy to control, the safety is not good, and fear of extrusion and other problems

Method used

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  • Foaming agent for emulsion explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1) Mix 0.8g of thiourea, 27g of sodium nitrite, 3g of potassium nitrite, 1.2g of urea, and 68g of water to make 100g of agent A; take 10g of ammonium nitrate, 2.5g of nitric acid, Mix 1.8 g of glacial acetic acid, 0.6 g of phosphoric acid, 0.6 g of citric acid, 1.8 g of urea, 1 g of sodium thiocyanate, 1.5 g of sodium bicarbonate, and 80.2 g of water to prepare 100 g of agent B;

[0015] 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.

[0016] The amount and quality index of blowing agent:

[0017] 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.

[0018] Quality index of blowing agent (see Table 1):

[0019] Table 1

[0020]

Embodiment 2

[0022] 1) Mix 0.5g of thiourea, 22g of sodium nitrite, 2.1g of potassium nitrite, 0.9g of urea, and 74.5g of water to make 100g of agent A; take 8g of ammonium nitrate, 1.5g of nitric acid, Mix 1.2 g of glacial acetic acid, 0.4 g of phosphoric acid, 0.4 g of citric acid, 1.5 g of urea, 0.5 g of sodium thiocyanate, 1 g of sodium bicarbonate, and 85.5 g of water to prepare 100 g of agent B;

[0023] 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.

[0024] The consumption and quality index of whipping agent are with embodiment 1.

Embodiment 3

[0026] 1) Mix 1.2g of thiourea, 30g of sodium nitrite, 4.2g of potassium nitrite, 1.5g of urea, and 63.1g of water to make 100g of agent A; take 12g of ammonium nitrate, 3 g of nitric acid, Mix 2.5 g of glacial acetic acid, 0.8 g of phosphoric acid, 0.8 g of citric acid, 3.5 g of urea, 1.5 g of sodium thiocyanate, 2 g of sodium bicarbonate, and 73.9 g of water to prepare 100 g of agent B;

[0027] 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.

[0028] The consumption and quality index of whipping agent are with embodiment 1.

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Abstract

The invention relates to a sensitizer special for an emulsion explosive, in particular to a foaming agent for the emulsion explosive. The foaming agent is formed by mixing an agent A and an agent B according to a weight ratio of 1:(1.2-1.5), wherein the agent A comprises the following components in percentage by weight: 0.5 to 1.2 percent of thiourea, 22 to 30 percent of sodium nitrate, 2.1 to 4.2 percent of potassium nitrite, 0.9 to 1.5 percent of urea and 63.1 to 74.5 percent of water; and the agent B comprises the following components in percentage by weight: 8 to 12 percent of ammonium nitrate, 1.5 to 3 percent of nitric acid, 1.2 to 2.5 percent of glacial acetic acid, 0.4 to 0.8 percent of phosphoric acid, 0.4 to 0.8 percent of citric acid, 1.5 to 3.5 percent of urea, 0.5 to 1.5 percent of sodium thiocyanate, 1 to 2 percent of sodium bicarbonate and 73.9 to 85.5 percent of water. The foaming agent has the advantages of high foaming speed, good foaming effect, small aftereffect, easily controlled density, high safety, low probability of extrusion and the like; meanwhile, the emulsion explosive sensitized by a chemical foaming agent has the characteristics of high explosion speed, large explosive capacity and the like.

Description

technical field [0001] The invention relates to a special sensitizer for emulsion explosives, in particular to a foaming agent for emulsion explosives. Background technique [0002] In emulsion explosives, the function of the foaming agent used is to form tiny bubbles in the emulsion explosive colloid, use the tiny bubbles to generate hot spots, and increase the density of the explosive. At present, the commonly used chemical foaming agent exists, the foaming speed is slow, resulting in interruption of the process, it is difficult to realize the charging and sealing of emulsion explosives, and the continuous production of packaging affects production efficiency, and the corresponding heat preservation process and equipment increase energy efficiency. Consumption and production management costs; the foaming effect is not ideal, which in turn affects the performance of emulsion explosives and blasting; the "after effect" effect is large, the density is not easy to control, the...

Claims

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Application Information

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IPC IPC(8): C06B23/00
Inventor 马永宁
Owner SHAANXI HUAQIN NEW ENERGY TECH CO LTD
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