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Production method of expanded ammonium nitrate explosive

A technology of expanded ammonium nitrate explosives and production methods, which is applied in the direction of explosives, explosive composite components, explosive processing equipment, etc., and can solve the problems of incomplete expansion, explosive detonation velocity and violent force not up to standard, easy mixing of water phase and oil phase, etc. problems, to achieve uniform quality, improve quality stability, and avoid large fluctuations

Active Publication Date: 2020-01-17
GUIZHOU PANJIANG CIVIL EXPLOSIVE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the water phase and oil phase produced in the current production method of expanded ammonium nitrate explosive are very easy to mix unevenly during mixing, resulting in unstable product quality after expansion
At the same time, in the process of mixing and puffing, it is easy to have incomplete puffing, which makes the detonation velocity and violent force of the explosive not up to the standard, and affects the quality of the finished explosive.

Method used

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  • Production method of expanded ammonium nitrate explosive

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Embodiment 1

[0037] Such as figure 1 As shown, the present embodiment provides a kind of production method of expanded ammonium nitrate explosive, comprises the following processing steps:

[0038] S1. Preparation of water phase: After the ammonium nitrate is transported by the tanker, the ammonium nitrate is crushed by the crusher. After the crushed ammonium nitrate is measured, it is added to the dissolving tank, and steam is introduced into the dissolving tank, so that the ammonium nitrate is heated and dissolved in the steam In the condensed water, a liquid ammonium nitrate solution is obtained, and the liquid ammonium nitrate solution is transported to the water phase storage tank through the pump body. 0.25% of the total mass of the liquid ammonium nitrate solution in the phase storage tank is used to measure the expansion agent, and then add it to the water phase storage tank, so that the expansion agent is dissolved in the ammonium nitrate solution to obtain an aqueous phase liquid...

Embodiment 2

[0045] Such as figure 1 As shown, the present embodiment provides a kind of production method of expanded ammonium nitrate explosive, comprises the following processing steps:

[0046] S1. Preparation of water phase: After the ammonium nitrate is transported by the tanker, the ammonium nitrate is crushed by the crusher. After the crushed ammonium nitrate is measured, it is added to the dissolving tank, and steam is introduced into the dissolving tank, so that the ammonium nitrate is heated and dissolved in the steam In the condensed water, a liquid ammonium nitrate solution is obtained, and the liquid ammonium nitrate solution is transported to the water phase storage tank through the pump body. 0.27% of the total mass of the liquid ammonium nitrate solution in the phase storage tank is used to measure the expansion agent, and then add it to the water phase storage tank, so that the expansion agent is dissolved in the ammonium nitrate solution to obtain an aqueous phase liquid...

Embodiment 3

[0053] Such as figure 1 As shown, the present embodiment provides a kind of production method of expanded ammonium nitrate explosive, comprises the following processing steps:

[0054] S1. Preparation of water phase: After the ammonium nitrate is transported by the tanker, the ammonium nitrate is crushed by the crusher. After the crushed ammonium nitrate is measured, it is added to the dissolving tank, and steam is introduced into the dissolving tank, so that the ammonium nitrate is heated and dissolved in the steam In the condensed water, a liquid ammonium nitrate solution is obtained, and the liquid ammonium nitrate solution is transported to the water phase storage tank through the pump body. 0.3% of the total mass of the liquid ammonium nitrate solution in the phase storage tank is used to measure the expansion agent, and then add it to the water phase storage tank, so that the expansion agent is dissolved in the ammonium nitrate solution to obtain an aqueous phase liquid....

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Abstract

The invention relates to a production method of an expanded ammonium nitrate explosive, and belongs to the technical field of explosive production. The production method of the expanded ammonium nitrate explosive comprises the following steps: after crushing ammonium nitrate, introducing steam for dissolving to obtain a liquid ammonium nitrate solution, conveying the liquid ammonium nitrate solution into a water phase storage tank for heat preservation and storage, and adding a metering bulking agent into the water-phase storage tank; after melting, conveying compound oil to an oil phase storage tank for heat preservation and storage; mixing a water phase with an oil phase to obtain a premixed solution; carrying out vacuum expansion on the premixed liquid to obtain an explosive pre-product, and feeding the explosive pre-product into a storage tank in multiple stages; adding a sensitizer into a storage tank, carrying out spiral mixing and conveying, and carrying out suspension cooling to a storage bin to obtain a semi-finished product; and subpackaging to obtain a finished expanded ammonium nitrate explosive product. The production method has the advantages that the mixing uniformity degree of the oil phase and the water phase can be effectively improved, and the expansion uniformity in the expansion process can be improved, so that the quality of the prepared finished expandedammonium nitrate explosive is stable.

Description

technical field [0001] The invention belongs to the technical field of explosive production, in particular to a production method of expanded ammonium nitrate explosive. Background technique [0002] Ammonium nitrate explosive is a powdery explosive mechanical mixture, which is one of the most widely used industrial explosive varieties, with medium power and certain sensitivity. [0003] At present, the existing preparation process of expanded ammonium nitrate explosive includes the preparation of ammonium nitrate water phase and the preparation of expansion agent oil phase, and then the prepared water phase and oil phase are mixed and expanded to prepare the finished ammonium nitrate explosive. [0004] However, the water phase and the oil phase produced in the current production method of expanded ammonium nitrate explosive are very easy to mix unevenly during mixing, resulting in unstable product quality after expansion. Simultaneously, in the process of mixing and puffi...

Claims

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Application Information

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IPC IPC(8): C06B31/28C06B21/00C06B23/00
CPCC06B21/00C06B21/0008C06B23/002C06B31/28
Inventor 武永李志雄刘振茂张健黄嵩邓云云陈池钦陆海东杨明刘东程健朱浩李泉铭黄方兵
Owner GUIZHOU PANJIANG CIVIL EXPLOSIVE