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Manufacturing method of on-site mixed emulsion explosive

A manufacturing method and technology for emulsified explosives, which are applied in the directions of explosives, explosives processing equipment, offensive equipment, etc., can solve problems such as affecting operation efficiency and use range, increasing pressure, reducing equipment safety, etc., to achieve good blasting effect, reduce processing costs, The effect of improving conveying efficiency

Active Publication Date: 2014-10-22
BEIJING BGRIMM YIBO TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are still some problems with this approach
[0005] First, this method reduces the delivery efficiency of the latex matrix, which affects the operating efficiency and the scope of use
[0006] Second, due to the increased viscosity of the latex matrix, it is necessary to increase the pressure of the pump used to deliver the latex matrix, thereby reducing the safety of the equipment
[0007] Third, due to the increased viscosity of the latex matrix, the latex matrix is ​​seriously hung on the wall in the latex matrix storage box of the charging equipment, thereby increasing the processing cost and posing safety hazards

Method used

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  • Manufacturing method of on-site mixed emulsion explosive

Examples

Experimental program
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Effect test

Embodiment 1

[0056] First prepare the latex matrix: in the first step, mix 697kg of ammonium nitrate, 80kg of sodium nitrate, 150kg of water, and 3kg of citric acid under the condition of heating to about 90°C to form an aqueous phase material; The BEF-4 emulsifier produced by the hospital (the main component of the BEF-4 emulsifier is polyisobutylene succinate monoglyceride), mixed with 50kg of 32# mechanical oil, heated to about 60°C to melt it, and formed an oil phase material In the third step, the water-phase material and the oil-phase material are emulsified into a water-in-oil type cross-linkable latex matrix by using a first-stage emulsifier at atmospheric pressure, and the emulsification temperature is about 90°C; in the fourth step, the latex matrix is ​​directly transported to Latex matrix box for the charging cart of the charging equipment.

[0057] The temperature of the latex matrix in the latex matrix box of the charging equipment is 40°C, and the absolute viscosity of the l...

Embodiment 2

[0063] First prepare the latex matrix: in the first step, mix 697kg of ammonium nitrate, 80kg of sodium nitrate, 150kg of water, and 3kg of acetic acid under the condition of heating to about 90°C to form an aqueous phase material; in the second step, mix 20kg of The SMO emulsifier produced (the main component of the SMO emulsifier is sorbitan monooleate), 50kg of 68# mechanical oil is mixed and heated to about 60°C to melt it to form an oil phase material; the third step, The water-phase material and the oil-phase material are emulsified into a water-in-oil latex matrix with a first-stage emulsifier at atmospheric pressure, and the emulsification temperature is about 90°C; in the fourth step, the latex matrix is ​​cooled by the steel belt and then transported to the latex of the charging equipment in the substrate storage box.

[0064]The temperature of the latex matrix in the latex matrix box of the charging equipment is 40°C, and the absolute viscosity of the latex matrix a...

Embodiment 3

[0070] First prepare the latex matrix: in the first step, mix 697kg of ammonium nitrate, 80kg of sodium nitrate, 150kg of water, and 3kg of citric acid under the condition of heating to about 90°C to form an aqueous phase material; The SMO emulsifier produced by the hospital (the main component of the SMO emulsifier is sorbitan monooleate), 45kg of 68# mechanical oil, and 5kg of oleic acid are mixed and heated to about 60°C to melt to form an oil phase Materials; in the third step, the water-phase material and the oil-phase material are emulsified into a water-in-oil latex matrix with a first-stage emulsifier at atmospheric pressure, and the emulsification temperature is about 90°C; in the fourth step, the latex matrix is ​​cooled by static pipeline Delivered to latex-based storage tanks of charge equipment.

[0071] The temperature of the latex matrix in the latex matrix box in the charging equipment is 40°C, and the absolute viscosity of the latex matrix at this temperature ...

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Abstract

The invention discloses a manufacturing method of an on-site mixed emulsion explosive. The method comprises the following steps: mixing a latex matrix with a sensitizer water solution containing a water-soluble crosslinking agent, so as to obtain a mixer, then filling the mixture into boreholes so as to enable the latex matrix can have crosslinking reaction and sensitizing reaction in the boreholes, thereby forming an emulsion explosive, wherein the latex matrix is prepared from the following raw materials in percentage by weight: 59%-82% of oxidant, 13%-30% of water, 0-1% of acid, 1%-3% of emulsifier and 4%-7% of oil-soluble substances, at least one of the emulsifier and oil-soluble substances is a compound containing at least one of hydroxyl, carboxyl and anhydride groups; the water-soluble crosslinking agent is one of inorganic weak acid, base and metal salts. According to the manufacturing method, the viscosity of the latex matrix is not increased, so that the hanging problem of the latex matrix in a latex matrix storage tank of filling equipment can be solved, and further the treatment cost can be lowered.

Description

technical field [0001] The invention relates to the technical field of explosive manufacture, in particular to a method for manufacturing emulsified explosives mixed on site. Background technique [0002] The low mining efficiency of underground mines is mainly manifested in the fact that the traditional underground mine charging equipment or charge process cannot meet the requirements of advanced mining technology, and the blasting efficiency of underground mine mining has become a key link restricting the mining efficiency of underground mines. It is one of the key technologies to improve the mining blasting efficiency of underground mines to realize the mechanized charging of underground mines, especially the on-site mixing of explosives with upward and medium-deep holes. With the continuous development of science and technology, a new underground mine mining technology has been developed, that is, the underground mine (underground) explosives on-site mixing technology. ...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B31/28
Inventor 马平谭本岭叶辉查正清龚兵刘晓文
Owner BEIJING BGRIMM YIBO TECH
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