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Waste emulsified explosive and method for reclaiming matrix thereof

A recovery method and emulsified technology, which is applied in the direction of explosives, explosives processing equipment, offensive equipment, etc., can solve the problems of potential safety hazards, economic losses, unsuitable recovery of waste powdery emulsion explosives and matrix, and achieve high safety effects

Inactive Publication Date: 2006-09-27
ANHUI JIANGNAN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Emulsion explosives and powdery emulsion explosives are water-in-oil type industrial explosives made of the water phase as the dispersed phase and the oil phase as the continuous phase. Due to temperature changes during production, use, and storage, and long storage time , resulting in crystallization and demulsification of emulsion explosives or powdery emulsion explosives, and the detonation indicators such as detonation velocity and detonation of explosives dropped sharply, resulting in expired or scrapped explosives; , so that emulsion explosives are prone to produce defective and waste products in the explosive production process. If these unqualified waste emulsion explosives, waste powder emulsion explosives and their substrates are all destroyed, it will not only bring a lot of damage to the destruction and its safety. Difficult, prone to safety accidents, will also bring certain economic losses and corresponding environmental pollution
[0003] Chinese patent CN1594242A proposes a recovery method for waste emulsion explosives. This patent adopts a recovery method of heating and melting waste emulsion explosives and re-emulsification. This method has certain potential safety hazards due to heating and melting in a melting tank. , and this method is only suitable for chemically sensitized emulsion explosives, and is not suitable for the recovery of waste powdery emulsion explosives and matrix

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Roll 209.25 kg (83.7%) of primary crushed ammonium nitrate in a heavy wheel mill, and add 0.75 kg (0.3%) modifier to the heavy wheel mill at the same time, and roll for 8 minutes at a temperature of 110°C on the disc Finally, add 12.5 kg (5%) of waste emulsion explosives and matrix, and then roll for 20 minutes, drive away the water to less than 0.30%, then add 5 kg (2%)) of composite oil phase materials and roll for 8 minutes; The mixture obtained in the first step is transferred to the middle wheel mill, the temperature of the disc is 45°C, after rolling for 5 minutes, add 12.5 kg (5%) of TNT and 10 kg (4%) of dried wood powder, and roll 15 minutes; the material obtained in the second step is sent to the charging process for charging and packaging, which is the finished product. Prepare 250 kilograms of powdery ammonium ladder oil explosives.

[0014] The modifier used in this example is a powdery mixture of octadecylamine phosphate and bentonite, and its weight rati...

Embodiment 2

[0016] Roll 196.75 kg (78.7%) of primary crushed ammonium nitrate in a heavy wheel mill, and add 0.75 kg (0.3%) modifier to the heavy wheel mill at the same time, at a temperature of 115°C, and roll for 10 minutes Finally, add 22.5 kg (9%) of waste powdery emulsion explosives and matrix, and then roll for 20 minutes, drive away the water to less than 0.30%, then add 5 kg (2%) of composite oil phase materials and roll for 10 minutes The mixture obtained in the first step is transferred to a light weight wheel mill, and the temperature of the disc is 45° C. After rolling for 5 minutes, add 17.5 kilograms (7%) of TNT and 7.5 kilograms (3%) of dried wood powder, and grind Press for 20 minutes; the material obtained in the second step is sent to the charging process for charging and packaging, which is the finished product. Obtain 250 grams of powdery ammonium ladder oil explosives.

[0017] The modifier used in this example is a powdery mixture of octadecylamine acetate and bento...

Embodiment 3

[0019] Roll 187.5 kg (75%) of primary crushed ammonium nitrate in a heavy wheel mill, and add 1.25 kg (0.5%) modifier to the heavy wheel mill at the same time, and roll for 5 minutes at a temperature of 100°C on the disc Finally, add 47.5 kg (19%) of waste emulsion explosives and matrix, and then roll for 40 minutes, drive away the water to less than 0.30%, then add 2.5 kg (1%) of composite oil phase materials and roll for 5 minutes; The mixture obtained in the first step is transferred to a medium wheel mill with a disc temperature of 55° C. After rolling for 4 minutes, add 6.25 kilograms (2.5%) of TNT and 5 kilograms (2%) of dried wood powder, and roll for 30 minutes. Minutes; the material obtained in the second step is sent to the charging process for charging and packaging, which is the finished product. Prepare 250 kilograms of powdery ammonium ladder oil explosives.

[0020] The modifying agent adopted in this embodiment is a powdery mixture of octadecylamine sulfonate ...

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Abstract

The invention discloses a waste emulsified explosive and method for reclaiming matrix, which consists of rolling 75-92% of ammonium nitrate, charging 0.05-0.50 of modifier, 2-19% of waste emulsion type explosive and base material, rolling again to remove moisture, charging 1-55 of compound oil phase material, rolling the mixture, charging charging 2-11% of TNT and 2-6% of dried wood powder, rolling and packaging.

Description

technical field [0001] The invention relates to a method for recovering waste explosives, in particular to a method for recovering waste emulsified explosives and substrates. It can be widely used in emulsion explosives and powdery emulsion explosives production plants to recycle scrapped or long-term storage emulsion explosives and their matrix. Background technique [0002] Emulsion explosives and powdery emulsion explosives are water-in-oil type industrial explosives made of the water phase as the dispersed phase and the oil phase as the continuous phase. Due to temperature changes during production, use, and storage, and long storage time , resulting in crystallization and demulsification of emulsion explosives or powdery emulsion explosives, and the detonation indicators such as detonation velocity and detonation of explosives dropped sharply, resulting in expired or scrapped explosives; , so that emulsion explosives are prone to produce defective and waste products in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/28C06B21/00
Inventor 刘世坤王自军江涌涛姚普华陈大生侯艺锋
Owner ANHUI JIANGNAN CHEM IND CO LTD
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