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On-site mixed and expanded ammonium nitrate explosive and production method thereof

A technology of expanded ammonium nitrate explosives and on-site mixed explosives, which is applied in the direction of explosives, etc., can solve the problems of many operators, low safety of explosive production and charge, and achieve high performance, improved production and charge safety, and storage Effect of Stability Requirement Reduction

Inactive Publication Date: 2012-06-13
XINJIANG TIANHE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production methods of the above explosives are all carried out in fixed workshops of fixed production plants. Compared with the on-site mixing method, this kind of explosives has factors such as detonator sensitivity and many operators, and the production and charging safety of explosives is relatively low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare 99.85-99.92 parts of industrial ammonium nitrate and an appropriate amount of water to make an ammonium nitrate solution with a mass concentration of 90-95% and heat it to 120°C to 130°C, then add 0.08-0.15 parts of melted surfactant octadecane Amine acetate is added to the prepared ammonium nitrate solution and stirred evenly, and then the obtained ammonium nitrate solution containing surfactant is vacuum-dried at a vacuum degree of not less than 0.08MPa to obtain a water content of less than 0.3% by weight , The bulk density is 0.5~0.65g / cm 3 expanded ammonium nitrate. The production of expanded ammonium nitrate can be carried out in the plant for the production of crystalline ammonium nitrate.

[0018] Put the prepared expanded ammonium nitrate into the ammonium nitrate storage tank of the on-site mixed explosives vehicle, put diesel into the oil storage tank of the on-site mixed explosives vehicle, drive the on-site mixed explosives vehicle to the blasting ...

Embodiment 2

[0020] The step described in Example 1 makes the weight ratio of expanded ammonium nitrate and diesel oil to be the on-site mixed expanded ammonium nitrate explosive of 94.5:5.5, and differs in the step described in Example 1 in that the surfactant used is octadecane Amine phosphate, and the weight ratio of setting expanded ammonium nitrate and diesel oil is 94.5:5.5.

Embodiment 3

[0022] The step described in Example 1 makes the weight ratio of expanded ammonium nitrate and diesel oil to be the on-the-spot mixed expanded ammonium nitrate explosive of 95.0:5.0, differs in the step described in Example 1 in that the surfactant used is octadecane Amine sulfate, and set the weight ratio of expanded ammonium nitrate and diesel oil to 95.0:5.0.

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Abstract

The invention discloses an on-site mixed and expanded ammonium nitrate explosive and a production method thereof, belonging to the technical field of explosives and the production method thereof. The on-site mixed and expanded ammonium nitrate explosive comprises the following components in part by weight: 94-96.5 parts of expanded ammonium nitrate and 3.5-6 parts of diesel oil. The expanded ammonium nitrate is prepared in advance, and the expanded ammonium nitrate and the diesel oil are mixed by an on-site explosive mixing vehicle on a blasting site. The on-site mixed and expanded ammonium nitrate explosive does not have the detonator sensitivity, and compared with the porous granular anfo explosive, the on-site mixed and expanded ammonium nitrate explosive has lower density, high performance, and higher explosive loading volume ratio of the blasthole. In the production method, the explosive manufacturing process and the blasthole loading process are carried out on a construction site at the same time, and before mixing, only raw materials or semifinished products are stored on the blasting site, so that the production safety and the loading safety are obviously improved and a requirement on the storage stability of the explosive is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of explosives and production methods thereof, and in particular relates to an on-site mixed and expanded ammonium nitrate explosive and a production method thereof. Background technique [0002] Known on-site mixed explosives are on-site mixed porous granular ammonium oil explosives and on-site mixed emulsion explosives. The demand for porous granular ammonium nitrate for explosives is also increasing, but the domestic production capacity of porous granular ammonium nitrate is seriously insufficient. While promoting on-site mixed explosives, there is an urgent need for substitutes for porous granular ammonium oil explosives. Chinese patent document CN101591210A discloses a sensitized expanded ammonium oil explosive and a preparation method thereof. The explosive is prepared by mixing 84-95% expanded ammonium nitrate, 1-11% nitromethane and 4-5% compound oil. Chinese patent document CN101684055A discloses an...

Claims

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Application Information

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IPC IPC(8): C06B31/28
Inventor 刘世坤沈跃华周佐玉沈建军陈筛阳
Owner XINJIANG TIANHE CHEM CO LTD
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