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Novel colloidal emulsion explosive for underground mining

An emulsion explosive and underground mine technology, applied in the field of explosives, can solve problems such as damage to the physical and mental health of workers, flying dust on the working surface, pollution of the working environment, etc., and achieve the effects of easy automatic pumping, improved emulsification, and simple formula.

Inactive Publication Date: 2020-11-17
宜兴市阳生化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The powdery emulsion explosive is loaded by pneumatic mechanical charging. Since the powder is not viscous, the phenomenon of powder return is serious when it is loaded upward to the blast hole. The actual amount of charge in the blast hole is far less than the predetermined value, which affects the blasting effect; moreover, the powder that falls back from the blast hole seriously pollutes the working environment, and the working flour is dusty, which seriously damages the physical and mental health of the staff.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides a new type of colloidal emulsion explosive for underground mines. The emulsion explosive includes the following components in parts by mass:

[0036] Ammonium nitrate: 70 parts, sodium nitrate: 3 parts, composite oil phase: 5 parts, sensitizer: 0.2 parts, thickener: 4 parts, viscosity reducer: 3 parts, surfactant: 1 part, stabilizer: 0.2 parts, water: 8 parts;

[0037] The composite oil phase is a mixture of paraffin wax, oil refining by-products, microcrystalline wax, and engine oil, of which in terms of parts by mass: paraffin wax: 10 parts, oil refining by-products: 35 parts, microcrystalline wax: 10 parts, machine oil: 10 parts, tower bottom oil : 8 servings.

[0038] In this embodiment, the sensitizer is a mixture of sodium nitrite and phosphoric acid in equal proportions; the thickener is polyacrylamide; the viscosity reducer is sodium lignosulfonate; the stabilizer is urea and potassium chloride mixed in equal proportions mixture.

[0...

Embodiment 2

[0049] This embodiment provides a new type of colloidal emulsion explosive for underground mines. The emulsion explosive includes the following components in parts by mass:

[0050] Ammonium nitrate: 80 parts, sodium nitrate: 10 parts, composite oil phase: 10 parts, sensitizer: 1 part, thickener: 6 parts, viscosity reducer: 5 parts, surfactant: 3 parts, stabilizer: 0.5 parts, water: 10 parts;

[0051] The composite oil phase is a mixture of paraffin wax, oil refining by-products, microcrystalline wax, and engine oil, of which in terms of parts by mass: paraffin wax: 13 parts, oil refining by-products: 39 parts, microcrystalline wax: 15 parts, engine oil: 15 parts, tower bottom oil : 10 servings.

[0052] In this embodiment, the sensitizer is a mixture of sodium nitrite and phosphoric acid in equal proportions; the thickener is polyacrylamide; the viscosity reducer is polyisobutenyl succinimide; the stabilizer is urea and chlorine mixed in equal proportions. Potassium mixture...

Embodiment 3

[0063] This embodiment provides a new type of colloidal emulsion explosive for underground mines. The emulsion explosive includes the following components in parts by mass:

[0064] Ammonium nitrate: 75 parts, sodium nitrate: 5 parts, composite oil phase: 8 parts, sensitizer: 0.8 parts, thickener: 5 parts, viscosity reducer: 4 parts, surfactant: 2 parts, stabilizer: 0.3 parts, water: 9 parts;

[0065] The composite oil phase is a mixture of paraffin wax, oil refining by-products, microcrystalline wax, and engine oil, of which in terms of parts by mass: paraffin wax: 11 parts, oil refining by-products: 37 parts, microcrystalline wax: 13 parts, engine oil: 12 parts, tower bottom oil : 9 servings.

[0066] In this embodiment, the sensitizer is a mixture of sodium nitrite and phosphoric acid in equal proportions; the thickener is polyacrylamide; the viscosity reducer is sodium lignosulfonate; the stabilizer is urea and potassium chloride mixed in equal proportions mixture.

[0...

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PUM

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Abstract

The invention discloses a novel colloidal emulsion explosive for underground mining. The emulsion explosive comprises the following components in parts by mass: 70-80 parts of ammonium nitrate, 3-10 parts of sodium nitrate, 5-10 parts of a composite oil phase, 0.2-1 part of a sensitizer, 4-6 parts of a thickener, 3-5 parts of a viscosity reducer, 1-3 parts of a surfactant, 0.2-0.5 part of a stabilizer and 8-10 parts of water. The composite oil phase is a mixture of 10-13 parts by mass of paraffin, 35-39 parts by mass of an oil refining byproduct, 10-15 parts by mass of microcrystalline wax, 10-15 parts by mass of engine oil and 8-10 parts by mass of tower bottom oil.

Description

technical field [0001] The invention relates to an explosive, in particular to a novel colloidal emulsion explosive for underground mining. Background technique [0002] Emulsion explosive is to use the function of emulsifier to disperse the droplets of oxidant salt solution evenly in the oil phase continuous medium containing dispersed air bubbles or hollow glass microspheres and other porous substances to form a water-in-oil latex Form explosive is a new type of industrial explosive developed in the 1970s. In 1969, Blabm in the United States first described the emulsion explosive technology more comprehensively. The earliest emulsion explosive was non-detonator-sensitive and must be detonated with the help of a relay primer. Later, with the in-depth research on emulsion explosives, the emulsion explosives developed in the later stage also have detonator sensitivity, and have good water resistance, good explosive performance, low mechanical sensitivity and good safety, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/30C06B21/00
CPCC06B21/0008C06B31/30
Inventor 许雷生殷军君贾建强
Owner 宜兴市阳生化工有限公司
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