Granular emulsion explosive and production method thereof

A technology of emulsion explosives and manufacturing methods, applied in explosives, explosives processing equipment, offensive equipment, etc., can solve problems such as poor storage performance and water resistance, low production efficiency of ammonium oil explosives, easy moisture absorption of explosive products, etc., and achieve natural accumulation The effect of high density, preventing the occurrence of explosive transmission, and good storage stability

Active Publication Date: 2009-10-14
BEIJING BGRIMM YIBO TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ammonium ladder explosives contain toxic ingredients, which are harmful to the human body, and the cost is high; the production efficiency of ammonium oil explosives is low, explosive products are easy to absorb moisture, agglomerate, and have poor storage performance and water resistance; powdery emulsion explosives are a high-performance industrial Explosives, the oxidant aqueous solution and the combustible oil phase are made into latex by emulsification, and the powdery explosive products are made by air spray powder making, air drying, dust collection, and cooling technology, which requires a large investment in infrastructure and high production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare 500Kg of explosives. In the first step, mix 430Kg ammonium nitrate, 15Kg sodium nitrate, and 20Kg water under the condition of heating to about 127°C to form a water phase material; in the second step, mix 3Kg span-80, 9Kg polyisobutylene succinimide T154 and 7Kg paraffin wax, 8Kg ozokerite, 7.5Kg rosin, 0.5Kg stearic acid are mixed and heated to about 110°C to melt to form an oil phase material; the third step is to use a normal pressure primary emulsifier to make the water phase material and oil phase The material is emulsified into a water-in-oil latex matrix, and the emulsification temperature is controlled at about 125°C; the fourth step is to spread the latex matrix on the metal conveyor belt to cool and harden, and the cooling method is to spray water under the front section of the conveyor belt to cool to 40°C , blowing cold air into the upper part of the rear section to cool to 25°C to obtain brittle solids; the fifth step is to peel off the brittle sol...

Embodiment 2

[0038] Prepare 500Kg of explosives. In the first step, mix 430Kg ammonium nitrate, 15Kg sodium nitrate, and 20Kg water under the condition of heating to about 128°C to form a water phase material; in the second step, mix 6Kg span-80, 6Kg polyisobutylene succinimide T154, 7Kg paraffin wax, 8Kg ozokerite, 7.5Kg rosin, 0.5Kg stearic acid are mixed and heated to about 105°C to melt to form an oil phase material; the third step is to use a normal pressure primary emulsifier to make the water phase material and oil phase The material is emulsified into a water-in-oil latex matrix, and the emulsification temperature is controlled at about 126°C; the fourth step is to spread the latex matrix on the metal conveyor belt to cool and harden, and the cooling method is to spray water under the front section of the conveyor belt to cool to 45°C , blowing cold air into the upper part of the back section to cool to 30°C to obtain brittle solids; the fifth step is to peel off the brittle solids...

Embodiment 3

[0040] Prepare 500Kg of explosives. The first step is to mix 432.5Kg of ammonium nitrate, 0.5Kg of sodium lauryl sulfate, 7Kg of calcium nitrate, 5Kg of magnesium nitrate, 0.5Kg of aluminum nitrate, and 20Kg of water under the condition of heating to about 130°C to form a water phase material; In the second step, mix 6Kg span-80, 6Kg polyisobutylene succinimide T154, 7Kg paraffin, 8Kg ozokerite, 7Kg rosin, 0.5Kg stearic acid and heat it to about 115°C to melt it to form an oil phase material; In the third step, the water-phase material and the oil-phase material are emulsified into a water-in-oil latex matrix by using a first-stage emulsifier at atmospheric pressure, and the emulsification temperature is controlled at about 128°C; the fourth step is to spread the latex matrix on the metal conveyor Upper cooling and hardening, the cooling method is to spray water below the front section of the conveyor belt to cool to 42°C, and blow cold air above the rear section to cool to 28...

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Abstract

The invention provides a granular emulsion explosive and a production method thereof. The granular emulsion explosive comprises the following components by mass percent: 87 to 93 percent of oxidizer, 2 to 5 percent of water, 1.5 to 3.5 percent of emulsifier and 2.5 to 6.5 percent of fuel, wherein the oxidizer is ammonium nitrate or a mixture made by mixing ammonium nitrate with at least one of the following chemicals: sodium nitrate, aluminium nitrate, calcium nitrate and magnesium nitrate; the emulsifier is sorbitan monooleate or a mixture made by mixing sorbitan monooleate with polyisobutylene succinimide; and the fuel is at least one of the following matters: colophony, paraffin, ozokerite, asphalt and stearic acid. The method for producing the granular emulsion explosive comprises the steps of: (a) mixing the oxidizer with water under heating to form an aqueous phase material; and mixing the fuel with the emulsifier and heating the mixture for melting to form a fat phase material; (b) carrying out heating and emulsification to lead the aqueous phase material and the fat phase material to form water-in-oil type latex substance; (c) cooling and solidifying the latex substance to obtain a brittle solid; and (d) crashing the brittle solid to obtain the granular emulsion explosive.

Description

technical field [0001] The present invention relates to an industrial explosive and its manufacturing method, more specifically, to a granular emulsion explosive and its manufacturing method. Background technique [0002] The explosives used in the civil explosive industry mainly include ammonium ladder explosives, ammonium oil explosives, and powdery emulsion explosives. Ammonium ladder explosives contain toxic ingredients, which are harmful to the human body, and the cost is high; the production efficiency of ammonium oil explosives is low, explosive products are easy to absorb moisture, agglomerate, and have poor storage performance and water resistance; powdery emulsion explosives are a high-performance industrial Explosives, by emulsifying the aqueous solution of the oxidant and the combustible oil to make latex, adopt air spray powder making, air drying, dust collection, and cooling technology to make powder explosive products, which requires large capital investment a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/28C06B21/00
Inventor 李国仲马平康廷璋王尹军张静
Owner BEIJING BGRIMM YIBO TECH
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