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Coal mine admissible powdery emulsifying ammonium nitrate fuel explosive and preparing process thereof

A technology of powdery emulsion explosives and ammonium oil explosives, applied in explosives processing equipment, explosives, offensive equipment, etc., can solve the problems of high production cost, complex production process, poor explosive performance, etc., and achieve low blasting costs and high storage stability The effect of high explosive performance

Active Publication Date: 2008-12-17
LIAONING HONGSHAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these explosives all have many shortcomings and deficiencies: the ammonium-ladder oil explosives allowed in coal mines are ladder-containing explosives, and are products that are about to be eliminated; The cost is high, the storage stability is poor, and it is easy to polycondensate and agglomerate; the quality control in the production process of coal mine ammonium oil explosives is difficult, and the explosive performance is poor, that is, the explosive distance, intensity and detonation velocity of the explosive are very low until the main performance indicators Difficult to meet

Method used

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  • Coal mine admissible powdery emulsifying ammonium nitrate fuel explosive and preparing process thereof
  • Coal mine admissible powdery emulsifying ammonium nitrate fuel explosive and preparing process thereof

Examples

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Effect test

Embodiment 1

[0025] 1. Raw material weight ratio of explosives

[0026] Raw materials: ammonium oil explosives used in the production of first-class water-resistant coal mine-permitted powder emulsified ammonium oil explosives (ammonium nitrate accounts for 84%, composite oil phase 2.9% , water-resistant agent 0.6%, wood powder 3.7%, flame suppressant 8.5%, compound modifier 0.3%) accounted for 70% of the total weight of explosives.

[0027] Ammonium oil explosives used in the production of secondary water-resistant coal mine powder emulsified ammonium oil explosives (ammonium nitrate accounts for 78.5%, composite oil phase 2.5% , water-resistant agent 0.6%, wood powder 3.6%, flame suppressant 14.5%, composite modifier 0.3%) accounted for 70% of the total weight of the explosive.

[0028] Rock powder emulsion explosive (91% ammonium nitrate, 4.0% water, 1.1% paraffin, 1.1% ozokerite, 1.3% rosin, polyisobutylene succinimide as dispersant 1.5%) accounted for 30% of the total explosive weigh...

Embodiment 2

[0045] 1. Raw material weight ratio of explosives

[0046] Raw materials: ammonium oil explosives used in the production of the first-class water-resistant coal mine permitted powdery emulsified ammonium oil explosives (ammonium nitrate accounts for 85%, composite oil phase 3.0% , water-resistant agent 0.5%, wood flour 3.2%, flame suppressant 7.9%, composite modifier 0.4%) accounted for 70% of the total weight of explosives.

[0047] The ammonium oil explosives used in the production of secondary water-resistant coal mine powder emulsified ammonium oil explosives (ammonium nitrate accounts for 77.9%, the composite oil phase 2.5% , water-resistant agent 0.7%, wood powder 3.2%, flame suppressant 15.3%, composite modifier 0.4%) accounted for 70% of the total weight of the explosive.

[0048] Rock powder emulsion explosive (ammonium nitrate accounts for 89.5%, water 5.3%, paraffin 1.1%, ozokerite 1.1%, rosin 1.5%, dispersant is polyisobutylene succinimide 1.5%) accounted for 30% ...

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Abstract

The invention discloses a powdery emulsion ammonium nitrate fuel oil explosive allowed to be used in coal mines and a preparation technology thereof, which is compounded and prepared by using rock powdery emulsion explosive which has good characteristics of high sensitivity to initiation, high detonation velocity and high explosive grading, to mix with ammonium nitrate fuel oil explosive containing a certain amount of flame inhibitor, wherein, the rock powdery emulsion explosive accounts for 28 percent to 32 percent of the total weight of the explosive and the fire-resistant ammonium nitrate fuel oil explosive accounts for 68 percent to 72 percent of the total weight of the explosive. The rock powdery emulsion explosive is an industrial explosive like powder formed from water-in-oil type latex base material which is sprayed and dried. The rock powdery emulsion explosive can be mixed into ordinary ammonium nitrate fuel oil explosive to replace trinitrotoluene and plays a sensitization role in the explosive to increase the explosive performance of compound explosive. The grade I and the grade II explosive prescriptions of the invention are respectively applicable to the excavating working faces of low-methane rock or low-methane coal beds and mines and the preparation technology thereof is applicable to the discontinuous or continuous automatic production of the powdery emulsion ammonium nitrate fuel oil explosive used in the coal mines.

Description

technical field [0001] The invention relates to a coal mine permitted powdery mixed explosive, in particular to a coal mine permitted powdery emulsified ammonium oil explosive which does not contain TNT and has high explosive performance and a preparation method of the explosive. Background technique [0002] At present, the domestically produced powder explosives for coal mines mainly include ammonium-tetrade oil explosives for coal mines, powder emulsion explosives for coal mines, and ammonium oil explosives for coal mines. The advantages of these explosives are that they do not contain TNT or contain less TNT. , less harmful to the environment and human health, good production safety, and relatively low cost of raw materials. However, these explosives all have many shortcomings and deficiencies: the ammonium-ladder oil explosives allowed in coal mines are ladder-containing explosives, and are products that are about to be eliminated; The cost is high, the storage stabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/30C06B21/00
Inventor 杨桂廷胡殿贵马晓军李树生李新富徐桂苹
Owner LIAONING HONGSHAN CHEM
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