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Chemical sensitizing method for emulsive explosive

A technology of emulsified explosives and explosives, applied in explosives, explosives processing equipment, offensive equipment, etc., can solve the problems of difficult management, large workshop area, and high energy consumption of equipment, so as to reduce costs and energy consumption, save equipment investment, The effect of simplifying the equipment process

Inactive Publication Date: 2009-12-16
CHINA GEZHOUBA GRP YIPULI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the early chemical foaming technology are: when the foaming agent is added to the latex matrix, it needs to be kept in a foaming room (or temperature control room) at 50-55°C for at least 4 hours before the foaming and sensitization can be qualified, resulting in interruption of the process and difficult management
[0009] Domestic cooling methods mainly include pipeline cooling, steel belt cooling, and water-through cooling, but the cooling efficiency of all these cooling methods is usually only 3-4t / h, which seriously restricts the increase in production capacity of industrial emulsion explosives. However, the production capacity of the latex matrix used for the charging vehicle can reach 8-12t / h, which limits the production capacity of the on-site mixed emulsion explosive production method of the latex matrix produced on the ground.
In addition, the current domestic latex matrix cooling or heat preservation equipment is expensive, the energy consumption of the equipment is high, and the workshop covers a large area.

Method used

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  • Chemical sensitizing method for emulsive explosive
  • Chemical sensitizing method for emulsive explosive
  • Chemical sensitizing method for emulsive explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The water phase component ratio of a certain emulsion explosive is ammonium nitrate: sodium nitrate: water=76%: 10%: 14%; the fuel oil material of the oil phase adopts diesel oil, machine oil, composite wax, soybean lecithin, and the emulsifier adopts S -80 type emulsifier, diesel oil: motor oil: composite wax: soybean lecithin: emulsifier S-80: = 45%: 15%: 4%: 4%: 32%; water phase: oil phase = 93.5%: 6.5% The water phase temperature is 95°C, and the oil phase temperature is 70°C; the latex matrix is ​​formed after emulsification by the emulsifier, and the sensitizer ratio of "Table 1" and "Table 2" is adopted, and the latex matrix formed above is sensitized according to Table 3. The density of explosives at different sensitization temperatures is shown in "Table 4", and the detonation velocity of explosives is 4800m / s~5100m / s, which is in line with the national industry's requirements for explosives.

Embodiment 2

[0043] The water phase component proportioning of emulsion explosive is ammonium nitrate: water=82%: 18%; The fuel oil material of oil phase adopts engine oil and diesel oil, emulsifier adopts LZ2731, diesel oil: engine oil: emulsifier LZ2731=50%: 16%: 34%; water phase: oil phase = 95%: 5%; water phase temperature 85°C, oil phase temperature 50°C; latex matrix formed after emulsification by the emulsifier, take the sensitizers in "Table 1" and "Table 2" According to Table 3, the latex matrix formed above is sensitized. The explosive density at different sensitization temperatures is shown in "Table 5". Indicator requirements.

[0044] Table 4: Chemical sensitization of "Example 1"

[0045]

[0046] Table 5: Chemical sensitization of "Example 2"

[0047]

[0048] It can be seen from Table 4 and Table 5 that after adopting the technical solution of the present invention, it can be sensitized to 1.15-1.25g / m within 10-30 minutes 3 The normal explosive density range, thus...

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Abstract

The invention discloses a chemical sensitizing method for emulsive explosive, which comprises the following steps: (1) preparing a foaming main agent and a foaming assistant agent, wherein the foaming main agent is prepared from sodium nitrite and water according to a weight ratio of 15-20:80-85 percent, and the foaming assistant agent is prepared from citric acid, ammonium nitrate and water according to a weight ratio of 1.5-2.5:12-18:80-85.5 percent; and (2) at different sensitizing temperatures of an emulsion matrix, adding the foaming main agent and the foaming assistant agent into the emulsion matrix respectively, and stirring the mixture evenly to form the explosive. Through an automatic control system for automatically adjusting the adding amount of a sensitizer at the different sensitizing temperatures, the method ensures the stability of explosive performance, realizes normal chemical sensitization in any colloid temperature range so as not to cool the emulsion matrix or preserve heat, simplifies the equipment process, saves the equipment investment, and reduces the cost and energy consumption.

Description

technical field [0001] The invention relates to a method for preparing explosives, in particular to a chemical sensitization method for emulsion explosives. Background technique [0002] The sensitization methods of emulsion explosives include chemical sensitization, physical sensitization and other sensitization methods. Among them, chemical sensitization is divided into inorganic foaming agent sensitization and organic foaming agent sensitization; physical sensitization usually adopts expanded perlite and glass microspheres; other sensitization methods include composite sensitization, metal powder Sensitization, porous ammonium nitrate sensitization, strong explosive sensitization and other methods. At present, the most common sensitization methods are chemical sensitization and physical sensitization. Chemical sensitization is currently the most commonly used sensitization method in China. [0003] The chemical sensitization of emulsion explosives is to mix substances t...

Claims

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Application Information

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IPC IPC(8): C06B45/00C06B21/00
Inventor 周桂松宋领李宏兵王清华肖青松魏碧波仲峰刘咏竹
Owner CHINA GEZHOUBA GRP YIPULI CO LTD
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