Unlock instant, AI-driven research and patent intelligence for your innovation.

Rock petroleum emulsion explosive for top hole charging

A powder emulsion explosive and explosive technology, which is applied in the directions of explosives, explosives processing equipment, offensive equipment, etc., can solve the problem of restricting the charging and explosion effect of the work site, the empty or half-hole charging of the blasting operation surface, and the failure to meet expectations. Blasting effect and other problems, to achieve the effect of low moisture content, increased workability, safe and convenient use

Active Publication Date: 2022-07-22
SHANXI TOND CHEMICAL CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the following problems have occurred in its use: 1. Because the binder in the viscous granular ammonium oil explosive contains certain water-based components, the drug state is fluid and does not have detonator sensitivity; 2. Because it contains water-based components, its 3. Because the viscous granular ammonium oil explosive has fluid properties, the explosives installed in the blast hole will flow to the top hole due to the weight of the explosive after the top hole is charged. Down flow, resulting in empty holes or half-hole charging phenomenon on the blasting operation surface, leaving a few meters of residual holes after blasting, which cannot achieve the expected blasting effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rock petroleum emulsion explosive for top hole charging
  • Rock petroleum emulsion explosive for top hole charging
  • Rock petroleum emulsion explosive for top hole charging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Weigh 35Kg of the composite oil phase, melt it in a dissolving tank at 85-90°C, add 665Kg of porous granular ammonium nitrate, mix and stir evenly to obtain a basic explosive.

[0054] Weigh 167.2Kg of ammonium nitrate and 17.6Kg of sodium nitrate, gradually add them to 22Kg of water, heat to 95~100℃ to dissolve to make water phase; melt 13.2Kg of special composite oil phase for emulsification at 90~95℃ to obtain oil phase.

[0055] After the above water phase and oil phase are transported to a static emulsifier for emulsification through a screw pump, a rock latex matrix is ​​obtained.

[0056] Weigh 72Kg of ammonium nitrate, gradually add it to 4Kg of water, heat to 115-120°C to dissolve to make water phase; melt 5.2Kg of special compound oil phase for powdered milk at 110-120°C to obtain oil phase.

[0057] The above-mentioned water phase and oil phase are transported to an emulsifier for emulsification by a screw pump, and then entered into a powder tower.

[0058]...

Embodiment 2

[0062] Weigh 42.5Kg of the composite oil phase, melt it in a dissolving tank at 85-90°C, add 807.5Kg of porous granular ammonium nitrate, mix and stir evenly to obtain a basic explosive.

[0063] Weigh 76Kg of ammonium nitrate and 8Kg of sodium nitrate, gradually add them to 10Kg of water, heat to 95~100℃ to dissolve to make water phase; melt 6Kg of special composite oil phase for emulsification at 85~90℃ to obtain oil phase.

[0064] After the above water phase and oil phase are transported to a static emulsifier for emulsification through a screw pump, a rock latex matrix is ​​obtained.

[0065] Weigh 45Kg of ammonium nitrate, gradually add it to 2.5Kg of water, heat to 115~120℃ to dissolve to make water phase; melt 3.25Kg of special compound oil phase for powder milk at 110~120℃ to obtain oil phase.

[0066] The above-mentioned water phase and oil phase are transported to an emulsifier for emulsification by a screw pump, and then entered into a powder tower.

[0067] Final...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

A rock petroleum emulsion explosive for top hole charging is prepared by mixing 70-85 wt.% of a basic explosive, 10-22 wt.% of a rock emulsion matrix and 5-8 wt.% of a powdery emulsion explosive, the basic explosive is formed by mixing 94-95 wt.% of porous granular ammonium nitrate and 5-6 wt.% of a composite oil phase, the rock emulsion matrix is formed by mixing 74-78 wt.% of ammonium nitrate, 6-9 wt.% of sodium nitrate, 10-11 wt.% of water and 6-7 wt.% of a composite oil phase special for emulsification, and the powdery emulsion explosive is formed by mixing 5-8 wt.% of a composite oil phase special for emulsification. The powder emulsion explosive is prepared by mixing 89.5 to 91 weight percent of ammonium nitrate, 2 to 3.5 weight percent of water and 4.5 to 6.5 weight percent of special compound oil phase for powder emulsion. The explosive provided by the invention has the advantages of bonding viscosity, moderate density, detonator sensitivity, high detonation velocity, high brisance and large power capability, is suitable for top hole blasting engineering, solves the falling problem of top hole charging, and does not leave residual holes after blasting.

Description

technical field [0001] The invention belongs to the technical field of industrial explosives, and relates to an industrial explosive suitable for top-hole charging, in particular to a high-power rock oil emulsion explosive for top-hole charging. Background technique [0002] In recent years, the demand for explosives for blasting tunnel top holes at home and abroad has been increasing. Because the blasting hole for the blasting of the top hole of the tunnel is generally a 90° vertical hole, not only the charging operation is technically difficult, but also the requirements for explosives are relatively strict. [0003] Generally speaking, the explosive suitable for blasting the top hole of the tunnel must first have a certain cohesiveness, so that the explosive can be automatically bonded in the blast hole after charging; After being charged by the pressurized mechanical charging device, the state of the charge will not be destroyed; the final explosive density should be as...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/28C06B21/00
CPCC06B31/285C06B21/0066C06B21/0033C06B21/0008
Inventor 李占荣余瑞文李蔓红白建明李柏成
Owner SHANXI TOND CHEMICAL CO LTD