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High temperature sensitized emulsion explosive and its preparation method

An emulsion explosive, high temperature technology, used in explosives processing equipment, explosives, non-explosive/non-thermal agent components, etc., can solve the problems of uneven density of latex matrix, fast decay of explosive performance, and untimely dispersion, and achieve accelerated production automation. Integrating with information technology, the performance of explosives decays slowly, and the effect of improving product quality

Active Publication Date: 2018-08-21
JIANGXI JIAN GUOTAI SPECIAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of this method, the perlite dust is large, causing certain environmental pollution, and the sensitization process adopts medium and low temperature, the explosive matrix has a large consistency, poor fluidity, and is not easy to pipeline or pump, and the production efficiency is only 2-3 tons per hour; The low-temperature chemical sensitization process introduces chemical bubbles into the matrix at 50°C-70°C to avoid dust pollution in the production process, but the bubbles are not uniformly dispersed in the latex matrix, and the chemical bubbles will continue to be generated during the storage period, resulting in the aftermath of the package bursting. Problems such as high temperature sensitization effect have not been completely solved, and the explosive matrix has a large consistency, poor fluidity, difficult pipeline or pumping, and low production efficiency still exist; the high temperature sensitization process has not solved its technical difficulties and has not been promoted.
The technical difficulties of the high-temperature sensitization process are: the chemical reaction is fast at high temperature, the bubbles are not dispersed in the latex matrix in time, uneven and easy to break, resulting in uneven density of the latex matrix, and rapid decay of explosive performance

Method used

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  • High temperature sensitized emulsion explosive and its preparation method
  • High temperature sensitized emulsion explosive and its preparation method
  • High temperature sensitized emulsion explosive and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] High temperature sensitized emulsion explosive, the explosive is prepared from the following raw materials in parts by weight: 75 parts of ammonium nitrate, 8 parts of sodium nitrate, 9 parts of water, integrated oil phase (paraffin: engine oil: vaseline: microcrystalline wax=20:30:45: 5) 5 parts, 1 part of sensitizer. The explosive with the above components is suitable for blasting No. 1 rock.

[0035] The preparation method is: (1) Water phase solution preparation: according to the formula ratio, when using liquid ammonium nitrate (mass concentration 91%, pH4), the liquid ammonium nitrate is pumped into the water phase preparation tank using a delivery pump, and water is added to dilute and stir , then adding sodium nitrate, heating to a temperature of 90°C-100°C while adding, keeping warm and stopping the reaction to obtain an aqueous phase solution;

[0036] (2) Preparation of oil phase solution: weigh the integrated oil phase and add it to the oil phase wax meltin...

Embodiment 2

[0040] High-temperature sensitized emulsion explosive, which is prepared from the following raw materials in parts by weight: 72 parts of ammonium nitrate, 10 parts of sodium nitrate, 10 parts of water, 6 parts of integrated oil phase, and 1.5 parts of sensitizer. The explosive with the above components is suitable for blasting No. 2 rock. The preparation method is the same as in Example 1.

Embodiment 3

[0042] High-temperature sensitized emulsion explosive, which is prepared from the following raw materials in parts by weight: 70 parts of ammonium nitrate, 10 parts of sodium nitrate, 2 parts of potassium chloride, 11 parts of water, 5.5 parts of integrated oil phase, and 2 parts of sensitizer. The explosives with the above components are suitable for blasting primary coal.

[0043] The preparation method is as follows: (1) When solid ammonium nitrate is used, firstly, the water is automatically quantitatively added to the water phase tank according to the formula ratio through the flow meter, and the steam is turned on (the steam pressure does not exceed 0.25MPa) to heat the water. When the temperature rises to 65°C When the crushed ammonium nitrate is sent to the water phase tank, when the temperature of the reaction solution is >75°C, start stirring and add sodium nitrate and potassium chloride, and continue heating to 95°C to stop heating and enter the automatic heat preser...

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Abstract

The invention discloses a high-temperature-sensitized emulsion explosive and a preparation method thereof. The explosive is prepared from, by weight, 65-80 parts of ammonium nitrate, 7-15 parts of sodium nitrate, 0-8 parts of potassium chloride, 7.5-13 parts of water, 4.7-6.3 parts of an integrated oil phase and a sensitizing agent and a foaming agent. The high-temperature-sensitized emulsion explosive has the advantages that bubbles are dispersed in a latex matrix in time and are not prone to breakage, the latex matrix is uniform in density, performance degradation of the explosive is slow, it is beneficial for accelerating production automation and informatization integration of the emulsion explosive, and the product quality and the production efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of emulsion explosives, and in particular relates to a high-temperature sensitized emulsion explosive and a preparation method thereof. Background technique [0002] Emulsion explosives are favored by customers for their high detonation velocity, high power, high water resistance, and pollution-free new explosives, and are listed as encouraged by national industry policies. The research and development of new products, new processes and new technologies of emulsion explosives has become a hot spot and focus in the civil explosive industry. The research on emulsion explosives in our country started in the 1970s. The early development work was greatly restricted, the components were very complex, the types of raw materials were less, and many formulas could not meet the requirements. In this case, a large amount of explosives was often consumed The cost of adding different auxiliary materials in explosives ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B31/28C06B23/00C06B21/00
CPCC06B21/00C06B23/002C06B31/285
Inventor 刘冬水郭佳甲胡圣邦李晖罗彦舟
Owner JIANGXI JIAN GUOTAI SPECIAL CHEM
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