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High-temperature acceleratingly-hardened emulsion explosive and preparation method for same

An emulsified explosive and rapid hardening technology, which is applied in the direction of explosives, non-explosive/non-thermal agent components, offensive equipment, etc., can solve the problems of rising temperature of finished products, difficulty in charging, inconvenient operation, etc., and achieve the purpose of improving the hardness of the outer phase Effect

Active Publication Date: 2012-08-15
ANHUI JIANGNAN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the melting point of the oil phase material and the increase in the viscosity of the emulsifier make it very inconvenient to stir and charge the emulsification process at room temperature. In order to solve this problem, emulsification, transportation, and The process temperature of each point such as medicine has to rise
However, the increase in process temperature, especially the increase in the temperature of the finished product, increases the difficulty of reducing the product's operating temperature, especially in summer, it is more difficult to reduce the product's operating temperature
This situation will make the product use temperature equal to the charge temperature, so the charge state of the emulsion explosive will be very thin. In the blasting operation, when filling the blast hole, the charge roll is easy to deform, break, and stick to the wall, causing the hole to be blocked. Difficulty with medicine, inconvenient use
[0004] At present, the production and use of emulsion explosives have the following problems: (1) The emulsified finished product is in a dilute state, which brings a lot of inconvenience to the charging process of blasting operations
(2) Emulsion explosives are relatively hard at room temperature, but when they are produced and used quickly, especially in high-temperature summer, the drug temperature is high, and the drug state of the product used is still very dilute

Method used

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  • High-temperature acceleratingly-hardened emulsion explosive and preparation method for same
  • High-temperature acceleratingly-hardened emulsion explosive and preparation method for same
  • High-temperature acceleratingly-hardened emulsion explosive and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Mix and dissolve 75kg of crushed ammonium nitrate, 5.5kg of sodium nitrate and 7kg of water, and control the temperature at 120±5°C to make a water phase solution; mix 1.5kg of No. 58 semi-refined paraffin wax, 1.5kg of No. 80 microcrystalline wax, hard Fatty acid 1kg, sodium silicate 0.09kg, stir and heat to melt completely, finally heat 1.99kg of polyisobutylene succinimide emulsifier, stir and heat to 115±5°C to make an oil phase melt; mix the above water phase and oil According to the ratio of 93.5:6.5, it is transported by the screw pump to the emulsifier for emulsification, so that the water phase is well wrapped in the oil phase to form a water-in-oil emulsification matrix; the above-mentioned matrix is ​​reduced to 52 ±3°C; the above-mentioned matrix is ​​subjected to high-temperature chemical and physical sensitization through a secondary sensitization machine; after the above-mentioned sensitized products are charged by a powder-filling machine, they are cooled...

Embodiment 2

[0067] Mix and dissolve 80kg of crushed ammonium nitrate, 6kg of sodium nitrate and 7.5kg of water, and control the temperature at 120±5°C to make an aqueous phase solution; mix 1.5kg of No. 58 semi-refined paraffin wax, 1kg of No. 80 microcrystalline wax, stearin Acid 1.9kg, sodium silicate 0.1kg, stir and heat to melt completely, finally heat 2kg of polyisobutylene succinimide emulsifier, stir and heat to 115±5°C to make an oil phase melt; mix the above water phase and oil phase According to the ratio of 93.5:6.5, the screw pump is transported to the emulsifier for emulsification, so that the water phase is well wrapped in the oil phase to form a water-in-oil emulsification matrix; the above-mentioned matrix is ​​reduced to 52± 3°C; the above-mentioned matrix is ​​subjected to high-temperature chemical and physical sensitization through a secondary sensitization machine; after the above-mentioned sensitized products are charged through a powder-filling machine, they are coole...

Embodiment 3

[0069] Mix and dissolve 85kg of crushed ammonium nitrate, 6.5kg of sodium nitrate and 8.5kg of water, and control the temperature at 120±5°C to make an aqueous phase solution; mix 1kg of No. 58 semi-refined paraffin wax, 1kg of No. 80 microcrystalline wax, stearin Acid 2.5kg, sodium silicate 0.2kg, stir and heat to melt completely, finally heat 2.2kg of polyisobutylene succinimide emulsifier and stir and heat to 115±5°C to make an oil phase melt; mix the above water phase and oil According to the ratio of 93.5:6.5, it is transported by the screw pump to the emulsifier for emulsification, so that the water phase is well wrapped in the oil phase to form a water-in-oil emulsification matrix; the above-mentioned matrix is ​​reduced to 52 ±3°C; the above-mentioned matrix is ​​subjected to high-temperature chemical and physical sensitization through a secondary sensitization machine; after the above-mentioned sensitized products are charged by a powder-filling machine, they are coole...

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Abstract

The invention relates to a high-temperature acceleratingly-hardened emulsion explosive, which comprises water-phase materials, oil-phase materials, emulsifier, sensitizer and hardening accelerator, wherein the water-phase materials include wax and / or fatty acid; the sensitizer includes physical sensitizer and chemical sensitizer simultaneously; and the hardening accelerator is selected from silicate and / or alkaline matter. The temperature of the emulsion explosive is higher than 35 DEG C, and the emulsion explosive has a certain hardness and is non-sticky, thereby being applicable to open-air filling operation in hot summer, and being high in explosion performance.

Description

technical field [0001] The invention relates to an emulsion explosive, in particular to a high-temperature rapid-hardening type emulsion explosive suitable for production and use in high-temperature summer, and belongs to the field of industrial explosive formula and production method design. Background technique [0002] Emulsion explosive is a water-in-oil type water-containing explosive prepared by emulsification technology. Specifically, through the action of an emulsifier, the water phase and the oil phase (melt) liquid are emulsified to form a water-in-oil (W / O ) type emulsification system. Emulsion explosives have good explosive performance and water resistance, as well as low mechanical sensitivity and moderate initiation sensitivity, which can ensure safety during production, storage, transportation and use, and are widely used. [0003] In the late 1970s, my country began to study emulsion explosives. For a long time, emulsion explosives have generally been in a s...

Claims

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Application Information

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IPC IPC(8): C06B31/28C06B23/00
Inventor 欧飞能方志梅杨小四鲍传齐胡灿
Owner ANHUI JIANGNAN CHEM IND CO LTD
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