Thickened emulsion explosive and its manufacturing method

A technology of emulsified explosives and emulsifiers, which is applied in the direction of explosives, non-explosive/non-thermal agent components, non-explosive fillers/gelling agents/thickeners, etc., which can solve the complex production of mixed emulsion matrix, high charge pressure, Poor stability and other problems, to achieve the effect of improving explosive blasting performance, long storage period and good stability

Active Publication Date: 2021-08-06
北矿亿博(沧州)科技有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a thickened emulsion explosive and its manufacturing method to solve the existing problems of complex production of mixed emulsion matrix, short storage period, poor stability, high charge pressure, easy drug drop, etc.

Method used

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  • Thickened emulsion explosive and its manufacturing method
  • Thickened emulsion explosive and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] To prepare thickened emulsion explosives, follow the steps below:

[0048] (1) Prepare mixed emulsification matrix at the ground station: the weight content is 75.9wt% ammonium nitrate, 8wt% sodium nitrate, 0.1wt% acetic acid and 16wt% water are heated to 80 ℃, make water phase; Base oil and emulsification The agent is heated to 80°C to make an oil phase; the heated water phase and oil phase are mixed at a weight ratio of 94:6, and a mixed emulsification matrix is ​​prepared through the ground pharmaceutical system. Here, the oil phase is obtained by mixing epoxidized soybean oil acrylate, machine oil and polyisobutylene succinate glycol amine emulsifier in a weight ratio of 1.5:2.5:2.

[0049] (2) Mix the mixed emulsifying base, sensitizer and thickener on the mixing truck: pass the mixed emulsifying base obtained in step (1) below 55°C with the sensitizer and amino terminal The butadiene-acrylonitrile liquid rubber is mixed and transported, and loaded into the blast ...

Embodiment 2

[0051] To prepare mixed emulsion explosives for thickening, follow the steps below:

[0052] (1) Preparation of mixed emulsification matrix at the ground station: heating 73.9wt% ammonium nitrate, 5wt% sodium nitrate, 5wt% calcium nitrate, 16wt% water and 0.1wt% acetic acid to 85° C. to make a water phase; Heat the base oil and emulsifier to 85°C to make an oil phase; mix the heated water phase and oil phase at a weight ratio of 94:6, and prepare a mixed emulsification matrix through the ground pharmaceutical system. Here, the oil phase is obtained by mixing corn oil, epoxidized soybean oil acrylate, synthetic oil and polyisobutylene triethanolamine succinate emulsifier in a weight ratio of 1.25:0.75:3:3.

[0053] (2) Mix the mixed emulsifying base, sensitizer and thickener on the mixing truck: pass the mixed emulsifying base obtained in step (1) below 55°C with the sensitizer and terminal hydroxyl Polybutadiene acrylonitrile is mixed and delivered, and loaded into the blast ...

Embodiment 3

[0055] To prepare mixed emulsion explosives for thickening, follow the steps below:

[0056] (1) Prepare mixed emulsification matrix at the ground station: the weight content is 73.85wt% ammonium nitrate, 10wt% sodium nitrate, 0.15wt% citric acid and 16wt% water are heated to 85 ℃, make water phase; Base oil and The emulsifier is heated to 75°C to form an oil phase; the heated water phase and oil phase are mixed at a weight ratio of 94:6, and a mixed emulsification matrix is ​​prepared through the ground pharmaceutical system. Here, the oil phase is obtained by mixing soybean oil, motor oil and polyisobutylene succinate xylitol in a weight ratio of 2:2:2.

[0057] (2) Mix the mixed emulsifying base, sensitizer and thickener on the mixing truck: pass the mixed emulsifying base obtained in step (1) below 55°C with the sensitizer, amino terminal Liquid nitrile rubber and epoxidized soybean oil acrylate are mixed and delivered, and loaded into the blast hole to form a thickened e...

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Abstract

The invention discloses a thickened emulsified explosive and a manufacturing method thereof. The thickening type emulsion explosive includes by weight: 50-110 parts of oxidizing agent, 0-0.3 parts of accelerator, 15-20 parts of water, 1-3 parts of emulsifier, 2.5 parts- 7 parts of base oil, 0.5-3 parts of thickener and 0.1-0.5 parts of sensitizer, the thickener includes at least one of amino-terminated polymers and hydroxyl-terminated polymers and α, β ‑Unsaturated carbonyl compounds. According to the method of the invention, the emulsified matrix produced has a long storage period and good stability, and is sensitized and foamed in the blast hole to become a thickened emulsified explosive, which has good safety, realizes coupling charge, does not drop the charge in the blast hole, and is blasting The effect is good.

Description

technical field [0001] The invention belongs to the technical field of industrial explosive preparation, in particular to a thickened emulsion explosive suitable for upward hole blasting and a manufacturing method thereof. Background technique [0002] At present, with the depletion of open-pit mines, people's awareness of environmental protection and safety management requirements are gradually strengthened, and the demand for emulsion explosives in underground blasting is increasing day by day. Especially for on-site mixed emulsified explosives, it is required that the emulsified matrix has good fluidity, low viscosity, and is easy to transport in pipes and hoses, so as to minimize the adhesion to the storage tank and conveying pipe wall of the production system. However, when the explosive is charged vertically upward to the hole, the emulsion explosive is required to have a certain viscosity, so as to ensure the adhesion of the upward hole charge, to achieve the purpose ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B31/28C06B23/00F42D1/10
CPCC06B23/001C06B31/28F42D1/10
Inventor 王肇中叶辉郝会娟马平查正清谭本岭崔刚肖玉平田爱军曹小双
Owner 北矿亿博(沧州)科技有限责任公司
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