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Solid glass micro-bead for explosive identification and manufacture method thereof

A technology of solid glass microspheres and marking, applied in the field of materials, can solve the problems of small explosive marking capacity, inability to provide information for identification and traceability, and achieve the effect of increasing the marking capacity

Inactive Publication Date: 2009-08-05
朱冬梅 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the current organic markers that can only be used as marks before explosives explode, and cannot provide information for identification and traceability of explosives after explosion, and the shortcomings of general inorganic substances that have small marking capacity for explosives, the present invention proposes a Solid glass microspheres for explosive marking and preparation method thereof

Method used

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  • Solid glass micro-bead for explosive identification and manufacture method thereof
  • Solid glass micro-bead for explosive identification and manufacture method thereof
  • Solid glass micro-bead for explosive identification and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A series of glass microspheres prepared in this example are mainly used to mark explosives with low explosive strength and low instantaneous temperature of explosion, which are characterized by low melting temperature and the largest particle size. Several typical formulations of this series are shown in Table 1:

[0016] Table 1

[0017]

[0018] The concrete preparation process of this embodiment is:

[0019] a. Batch and mix the raw materials according to the formula, put them into a glass melting furnace for melting at 1200-1280°C, and keep warm for 2-4 hours;

[0020] b. Quickly pour the fully melted and evenly stirred glass melt into cold water for quenching to obtain fully uniform and broken glass;

[0021] c. Break the broken glass and sieve out glass particles with a particle size of 600-2000 μm;

[0022] d. Use a powder feeder to send glass particles into a high-temperature flame with a temperature higher than the melting temperature of the glass in the ...

Embodiment 2

[0024] A series of glass microspheres prepared in this example are mainly used to mark explosives with medium to high explosion intensity and medium to high instantaneous temperature of explosion, which are characterized by high melting temperature and moderate particle size. Several typical formulations of this series are shown in Table 2:

[0025] Table 2

[0026]

[0027] The concrete preparation process of this embodiment is:

[0028] a. According to the formula, the raw materials are batched and mixed, put into a glass melting furnace for melting at 1300-1400°C, and keep warm for 4-8 hours;

[0029] b. Quickly pour the fully melted and evenly stirred glass melt into cold water for quenching to obtain fully uniform and broken glass;

[0030] c. Crush the broken glass and sieve out glass particles with a particle size of 200-800 μm;

[0031] d. Use a powder feeder to send glass particles into a high-temperature flame with a temperature higher than the melting temperat...

Embodiment 3

[0033] A series of glass microspheres prepared in this example are mainly used to mark explosives with the strongest explosive strength and the highest instantaneous temperature of explosion, which are characterized by the highest melting temperature and the smallest particle size. Several typical formulations of this series are shown in Table 3.

[0034] table 3

[0035]

[0036] The concrete preparation process of this embodiment is:

[0037] a. Batch and mix the raw materials according to the recipe, put them into a glass melting furnace for melting at 1450-1550°C, and keep warm for 6-10 hours;

[0038] b. Quickly pour the fully melted and evenly stirred glass melt into cold water for quenching to obtain fully uniform and broken glass;

[0039] c. Crush the broken glass and sieve out glass particles with a particle size of 10-200 μm;

[0040] d. Use a powder feeder to send glass particles into a high-temperature flame with a temperature higher than the melting tempera...

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Abstract

The invention relates to a solid glass microballoon for explosive marking and a method for preparing the same. The solid glass microballoon comprises basic glass oxide, marking oxide and fluorescence oxide, and is prepared by the following steps: blending and mixing the oxides; filling the mixture into a glass furnace to perform melting at a temperature of between 1,200 and 1,550 DEG C and keeping the temperature for 2 to 10 hours; pouring the mixture into cold water quickly to perform quenching; breaking the cracked glass obtained after the quenching, and screening the broken glass to obtain glass particles of which the particle diameter is between 10 and 2,000 mu m; and melting the glass particles in high-temperature fire of which the temperature is higher than the melting temperature of the glass, and breaking away from the fire to obtain the glass microballoon. By adding the oxides with different types and contents into the glass as a marking characteristic, the marking capacity of explosives is improved, and through extracting markers in the explosives before explosion or on site after the explosion, the correlative information on explosive production, circulation, and the like can be found out so as to achieve the aim of marking the explosives.

Description

1. Technical field [0001] The invention relates to the field of materials, and relates to a solid glass microsphere used for marking explosives and a preparation method thereof. 2. Background technology [0002] In recent years, the illegal use of explosives has been increasing, and terrorist bombings have attracted more and more attention from governments. How to find a practical way to manage the production of explosives, prevent or track the illegal circulation and use of explosives, and quickly detect terrorist bombing cases is an urgent problem that security agencies in various countries need to solve. [0003] With the development of the anti-terrorism situation, countries all over the world pay more and more attention to the management of explosives in the field of production and circulation, so they also pay more and more attention to the research on explosive marking and tracing. The materials used as markers for explosives must have the following characteristics: ...

Claims

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Application Information

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IPC IPC(8): C03C12/00C03B19/10C06B23/00
Inventor 朱冬梅罗发周万城范登胜
Owner 朱冬梅
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