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Low-temperature-resistant frozen soil emulsion explosive

An emulsion explosive and anti-low temperature technology, which is applied in explosives and other fields, can solve the problems of easy breaking of emulsion, crystallization, freezing, etc., and achieve the effect of reliable detonation and good stability

Inactive Publication Date: 2020-10-30
山西壶化集团金星化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the shortcomings of the existing emulsion explosives that are easy to demulsify, crystallize and freeze under low temperature conditions, and provides a low temperature frozen soil emulsion explosive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of anti-low temperature frozen soil emulsion explosive, accurately weigh the following raw materials: ammonium nitrate 72.1kg, sodium nitrate 9.2kg, potassium chloride 2.5kg, water 10 kg, paraffin wax 1.2kg, microcrystalline wax 1.2kg, base oil 0.85 kg, polyether 0.15kg, Span-80 0.46kg, LZ2820 2.32kg, sensitizer (sodium nitrite 0.8kg, calcium nitrate 1.08kg, zinc nitrate 0.12kg, water 2kg) 4kg, and then prepared according to the conventional method Can.

Embodiment 2

[0024] An anti-low temperature permafrost emulsion explosive, accurately weigh the following raw materials: 72.5kg of ammonium nitrate, 8kg of sodium nitrate, 2.0kg of potassium chloride, 9kg of water, 1.0kg of paraffin wax, 1.5kg of microcrystalline wax, 0.80kg of base oil, 0.1kg of polyether, 0.60kg of Span-80, 1.0kg of LZ2820, 3kg of sensitizer (sodium nitrite 0.6kg, calcium nitrate 0.81kg, zinc nitrate 0.09kg, water 1.5kg) 3kg, and then prepare according to the conventional method .

Embodiment 3

[0026] An anti-low temperature permafrost emulsified explosive. The following raw materials are accurately weighed: 70.5kg of ammonium nitrate, 10kg of sodium nitrate, 3.0kg of potassium chloride, 8kg of water, 1.3kg of paraffin wax, 1.0kg of microcrystalline wax, 0.90kg of base oil, 0.3kg of polyether, 0.40kg of Span-80, 2.0kg of LZ2820, 5kg of sensitizer (sodium nitrite 1.0kg, calcium nitrate 1.35kg, zinc nitrate 0.15kg, water 2.5kg) 5kg, and then prepare according to the conventional method .

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Abstract

The invention discloses a low-temperature-resistant frozen soil emulsion explosive, belongs to the technical field of explosives, relates to emulsion explosives, and overcomes the defect that the existing emulsion explosive is easy to demulsify, crystallize and freeze under a low-temperature condition. The low-temperature-resistant frozen soil emulsion explosive is prepared from the following rawmaterials by weight: 67.5-72.5 parts of ammonium nitrate, 8-10 parts of sodium nitrate, 2-3 parts of potassium chloride, 7-10 parts of water, 1-1.5 parts of paraffin, 1-1.5 parts of microcrystalline wax, 0.8-1 part of base oil, 0.1-0.3 part of polyether, 0.4-0.6 part of Span-80, 1.0-2.5 parts of LZ2820 and 3-5 parts of a sensitizer. The emulsion explosive provided by the invention has good stability, detonation sensitivity and detonation performance under a low temperature condition, and can still keep a soft state without freezing, deterioration and electric conduction at a low temperature of-30DEG C to -40DEG C through continuous deep freezing or quick freezing, and the detonation is reliable.

Description

technical field [0001] The invention belongs to the technical field of explosives, and relates to an emulsion explosive, in particular to an emulsion explosive resistant to low temperature and frozen soil. Background technique [0002] Emulsion explosive is a kind of water-in-oil latex explosive, which is a new environment-friendly industrial explosive developed in the 1970s. Emulsion explosives have good waterproof performance and are widely used in mines, underwater and other environments. [0003] Emulsion explosives can be stored for 6 to 12 months at room temperature, but they are prone to demulsification, crystallization and freezing at low temperatures, which limits their use and makes them unsuitable for cold regions, especially in northern winters. Use in severe cold areas. [0004] In order to solve the problems of low explosive performance and detonation performance of existing emulsion explosives in high-latitude severe cold regions or tunnel permafrost blastin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/28
CPCC06B31/28
Inventor 郭敏郭建瑞李冰芸
Owner 山西壶化集团金星化工有限公司
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