Mixed loading emulsion explosive used for upward hole charge and preparation method of mixed loading emulsion explosive

A technology of emulsified explosives and mixed packaging, which is applied in the direction of explosives processing equipment, explosives, explosives composite components, etc., can solve the problems of falling powder, slow cross-linking speed, waste of resources, etc., and achieve the goal of saving resources, reducing material waste, and saving energy. Effect

Inactive Publication Date: 2018-07-20
CHINA GEZHOUBA GRP YIPULI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual application process, the temperature of the mixed latex matrix in the charging equipment is usually 55-60°C, and the cross-linking speed is relatively slow during the charging process, resulting in serious drug falling in the early stage of charging, which is harmful to resources. a serious waste

Method used

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  • Mixed loading emulsion explosive used for upward hole charge and preparation method of mixed loading emulsion explosive
  • Mixed loading emulsion explosive used for upward hole charge and preparation method of mixed loading emulsion explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] To prepare mixed emulsion explosives for upward hole charging, follow the steps below:

[0024] (1) Prepare mixed latex matrix: heat the water phase of ammonium nitrate with a mass content of 80 to 85% to 88°C to 98°C, take the oil phase and heat it to 55°C to 60°C, and heat the heated ammonium nitrate water phase and oil The phases are mixed according to the mass ratio of 90-96:4-10, stirred under high shear conditions, and the mixed latex matrix is ​​prepared through the ground pharmaceutical module; the oil phase is composed of diesel oil, engine oil and polyisobutylene succinic anhydride alcohol The amine emulsifier is obtained by mixing according to the mass ratio of 2-4:1-3:1-3;

[0025] (2) Mix latex matrix and cross-linking agent: mix the latex matrix obtained in step (1) with cross-linking agent through underground charging equipment at 55°C to 60°C, and mix latex matrix and cross-linking agent The mass ratio is 10:1~1.5;

[0026] (3) PEG / SiO2 2 Shear thicke...

Embodiment 2

[0032] The mixed emulsified explosive samples 1-5 obtained in Example 1 are charged with high initial viscosity, combined with cross-linking and solidification, the emulsified explosive is not easy to fall out of the charge hole, reduces material waste, and saves energy and resources. The explosives prepared by the application method are compared with the emulsion explosives of our company's original on-site upward filling of deep holes, and the relevant indicators are shown in the following table 2:

[0033] Table 2. Comparison of the charging effects of the two technologies

[0034]

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Abstract

The invention discloses a mixed loading emulsion explosive used for upward hole charge and a preparation method of the mixed loading emulsion explosive, the preparation steps comprise steps of (1) preparation of a mixed loading emulsion matrix: an ammonium nitrate water phase is heated, an oil phase is taken for heating, the ammonium nitrate water phase and the oil phase are mixed and stirred, andthe mixed loading emulsion matrix is prepared; (2) mixing of the mixed loading emulsion matrix and a cross-linking agent: the mixed loading emulsion matrix and the cross-linking agent are mixed; (3)mixing of a PEG/SiO2 shear thickening liquid: the emulsion matrix and a PEG 600 solution containing nanometer SiO2 are mixed; (4) tail end static sensitizing: the mixed emulsion matrix is subjected tostatic sensitizing at the charge tail end through a sensitizing agent, and the mixed loading emulsion explosive used for upward hole charge is formed. The mixed loading emulsion explosive prepared with the method has higher viscosity at the charge initial stage, crosslinking solidification is combined, the emulsion explosive is not easy to fall from explosive holes, material waste is reduced, andthe energy and the resource are saved.

Description

technical field [0001] The invention belongs to the technical field of emulsion explosives, and in particular relates to a mixed emulsified explosive for upward hole charging and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of underground mining, the production technology of mixed small-diameter explosives suitable for vertically upward medium and deep hole charging has become increasingly mature. At present, viscous ammonium oil explosives are mainly used for upward hole charging, but the initial viscosity of the powdered powder is small, the charge is serious, and the charge efficiency is low. With the development of high-efficiency charging equipment such as underground charging vehicles and the wide application of mixed emulsion explosives, mixed emulsion explosives for upward hole charging have gradually developed. [0003] Our company's patent ZL2013104740104 discloses a process method for preparing emuls...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/28C06B23/00C06B21/00
CPCC06B21/00C06B21/0008C06B23/009C06B31/285
Inventor 董云赵华平夏广方周桂松陈红刚
Owner CHINA GEZHOUBA GRP YIPULI CO LTD
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