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Fast sensitizer for emulsion explosive

An emulsion explosive and sensitizer technology, applied in the field of sensitizers, can solve the problems of affecting workers' health, uneven distribution of bubbles, slow foaming speed, etc., and achieves no after-effect reaction, low production cost, and rapid foaming. Effect

Active Publication Date: 2010-10-27
广东华威化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current chemical sensitizers for emulsion explosives have slow foaming speed and uneven distribution of bubbles, and some use sulfuric acid as a catalyst to cause environmental pollution, high production costs, and affect the health of workers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Take 42 kilograms of sodium nitrite and 15 kilograms of ammonium nitrate and add in the foaming dissolving tank at normal temperature, then add 43 kilograms of water and stir for 40 minutes to obtain A; (2) Mix 0.4 kilograms of oxalic acid and 0.6 kilograms of thiourea , to obtain B, directly add in the emulsion explosive aqueous phase tank by 0.03% of the total mass of the emulsification matrix, the dissolution temperature is 105 ℃, and the stirring time is 40 minutes; At ℃, A is uniformly added at 1% of the total mass of the emulsified matrix, foaming is rapid, and the prepared emulsified explosive has excellent explosive performance.

Embodiment 2

[0014] (1) Take 20 kilograms of sodium nitrite and 30 kilograms of ammonium nitrate and add them to the foaming dissolving tank at room temperature, then add 50 kilograms of water and stir for 30 minutes to obtain A; (2) Mix 0.25 kilograms of oxalic acid and 0.25 kilograms of thiourea , to obtain B, directly add in the emulsion explosive aqueous phase tank by 0.04% of the total mass of the emulsification matrix, the dissolution temperature is 100 DEG C, and the stirring time is 30 minutes; At ℃, A is evenly added in an amount of 1.5% of the total mass of the emulsified matrix, the foaming is rapid, and the prepared emulsified explosive has excellent explosive performance.

Embodiment 3

[0016] (1) Take 25 kilograms of sodium nitrite and 35 kilograms of ammonium nitrate and add them to the foaming dissolving tank at normal temperature, then add 40 kilograms of water and stir for 34 minutes to obtain A; (2) Mix 0.3 kilograms of oxalic acid and 0.3 kilograms of thiourea , to obtain B; (3) According to the requirements of the emulsion explosive production process, the emulsified matrix is ​​prepared. When the matrix is ​​cooled to 50°C, 2% of the A component and 0.04% of the B component of the total mass of the emulsified matrix are evenly added, and the foaming is rapid. The prepared emulsion explosive has excellent explosive performance.

[0017] Table 1 Drug body density before and after sensitization of emulsified matrix

[0018]

sample

Emulsion matrix density

5 minutes after mixing

Drug body density

30 minutes after mixing

Drug body density

1 hour after mixing

Drug body density

Embodimen...

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PUM

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Abstract

The invention relates to a fast sensitizer for emulsion explosive, which comprises components A and B in weight percent: component A: 15-42% of sodium nitrite, 15-42% of ammonium nitrate and 14-68% of water; component B: 40-60% of oxalic acid and 40-60% of thiourea; and the mixed ratio of component A to component B is 30-50:1. The fast sensitizer of the invention has fast foaming speed, simple process, convenient operation, low production cost and no aftereffect reaction; and the emulsion explosive prepared by the fast sensitizer has good explosive property, high brisance and strong work capacity.

Description

technical field [0001] The invention relates to a sensitizer, in particular to a fast sensitizer for emulsion explosives. Background technique [0002] In the production process of emulsion explosives, the prepared water phase and oil phase are emulsified to prepare an emulsification matrix, and a sensitizer is added to the emulsification matrix to form an emulsion explosive. The sensitizer has physical sensitization and chemical sensitization, and adding a physical sensitizer such as expanded perlite or glass microspheres has high cost and low explosive performance. In order to stably improve the detonation performance indicators such as detonation sensitivity of emulsion explosives, adding an appropriate rapid sensitizer is an effective way. The current chemical sensitizers for emulsion explosives have slow foaming speed and uneven distribution of bubbles, and some use sulfuric acid as a catalyst to cause environmental pollution, high production costs, and affect the heal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00
Inventor 饶森宏苗战营潘天洪张振新巫卓东刘文唐钟远军杨柳文曾庆汉杨雄燕苗丽芳钟利强黄志林李辉旋邓威东李惠新刘渊
Owner 广东华威化工股份有限公司
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