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Solid-state emulsion explosive seismic source grain and preparation method thereof

A technology of emulsion explosives and shock source charges, applied in explosives, blasting and other directions, can solve the problems of operator injury, high incidence of occupational diseases, unstable detonation performance, etc., to eliminate human and environmental hazards, excellent water resistance and moisture resistance. properties, improve storage stability

Inactive Publication Date: 2011-11-23
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, ammonium ladder explosives have unstable detonation performance due to the poor water resistance of the explosives themselves; TNT is contained in the components, which causes great harm to the operators during the manufacturing process, has a high incidence of occupational diseases, and pollutes the environment; Cause secondary pollution to the environment
Colloidal emulsion explosive is a kind of water-resistant explosive. Its components contain a large amount of water, and its explosive power is small; due to its own thermodynamic and dynamic instability, it leads to poor storage stability; the formability of the finished powder column is poor, and the operation inconvenient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Taking the production of 20 kg of solid emulsion explosive seismic source charge as an example, the mass percentages of each component of the main charge of the solid emulsion explosive seismic source charge are selected as follows: 85% of ammonium nitrate, 6% of sodium nitrate, 3% of water, 4.5% crude wax, 0.5% polyisobutylene succinimide, 1% chemical foaming agent, wherein the chemical foaming agent is divided into two parts, the first part is 15% ammonium nitrate, 15% sodium nitrite, 70% water, In the second part, phosphoric acid is 11.8%, water is 88.2%, and the mass ratio of the two parts is 1:1. Accurately weigh 17 kg of ammonium nitrate, 1.2 kg of sodium nitrate, 0.6 kg of water, 0.9 kg of crude wax, 0.1 kg of polyisobutylene succinimide, and 0.2 kg of chemical blowing agent according to the above proportioning ratio.

[0021] Operation steps: the first step is to heat and dissolve ammonium nitrate, sodium nitrate and water and raise the temperature...

Embodiment 2

[0022] Embodiment 2: Taking the production of 20 kg of solid emulsion explosive seismic source charge column as an example, the mass percentages of each component of the main charge of the solid emulsion explosive seismic source charge column are selected as follows: 70% of ammonium nitrate, 16% of potassium nitrate, 4% of water, 3% composite wax, wherein the composite wax contains 95% crude wax, 5% bran wax, 2% SP-80, and 5% expanded perlite. Accurately weigh 14 kg of ammonium nitrate, 3.2 kg of potassium nitrate, 0.8 kg of water, 0.6 kg of composite wax, 0.4 kg of SP-80, and 1 kg of expanded perlite according to the above proportions.

[0023] Operation steps: the first step is to heat and dissolve ammonium nitrate, potassium nitrate and water and raise the temperature to 140°C to form an oxidant solution; the second step is to heat and melt the composite wax and SP-80 and raise the temperature to 130°C to form a combustible solution; the second step In the third step, the o...

Embodiment 3

[0024] Embodiment 3: Taking the production of 20 kg of solid emulsion explosive seismic source charge as an example, the mass percentages of each component of the main charge of the solid emulsion explosive seismic source charge are selected as follows: 74% of ammonium nitrate, 10% of water, 4% of paraffin, poly Isobutylene succinimide 1%, SP-80 1%, glass microspheres 10%. Accurately weigh 14.8 kg of ammonium nitrate, 2 kg of water, 0.8 kg of paraffin, 0.2 kg of polyisobutylene succinimide, 0.2 kg of SP-80, and 2 kg of glass microspheres according to the above proportions.

[0025] Operation steps: the first step is to heat and dissolve ammonium nitrate and water and raise the temperature to 120°C to form an oxidant solution; the second step is to heat and melt paraffin, polyisobutylene succinimide and SP-80 and raise the temperature to 110°C to form a substance solution; the third step is to mix the oxidizer solution and the combustible substance solution into a uniform mixtu...

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Abstract

The invention discloses a solid-state emulsion explosive seismic source grain and a preparation method thereof. The preparation method comprises the steps of: heating a mixture composed of an oxidizing agent, a crystal form modifying agent and water for dissolving to form an oxidizing agent solution; heating a mixture composed of compound wax and an emulsifying agent for melting to form a combustible solution; adding the oxidizing agent solution into the combustible solution, and stirring to form a water-in-oil type mixture; adding a density modifying agent in the water-in-oil type mixture and stirring to obtain main charge of the solid-state emulsion explosive seismic source grain; and filling the obtained main charge in a charge shell of the grain with required specifications, pressing into a detonator base with an explosive-initiating grain, and sealing with a sealant to obtain the solid-state emulsion explosive seismic source grain. The solid-state emulsion explosive seismic source grain prepared by the preparation method disclosed by the invention has excellent explosive property.

Description

technical field [0001] The invention belongs to the technology of civil blasting equipment, in particular to a solid emulsion explosive seismic source charge column in the field of seismic exploration and a preparation method thereof. Background technique [0002] It is understood that currently used in seismic exploration, the main charge of the source charge column commonly used is ammonium ladder explosive and emulsion explosive. Such as Chinese Patent No. 98214674.4 discloses a new type of seismic source charge column, the main charge is an ammonium ladder explosive; Chinese Patent No. 00229323.4 discloses a high-energy emulsion explosive source charge column, and the main charge is a colloidal emulsion explosive; although they can basically reach the Exploration requirements, but there are deficiencies. Among them, ammonium ladder explosives have unstable detonation performance due to the poor water resistance of the explosives themselves; TNT is contained in the compo...

Claims

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Application Information

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IPC IPC(8): F42D5/04C06B31/28
Inventor 倪欧琪张凯铭俞珍权
Owner NANJING UNIV OF SCI & TECH
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