Passivation and filter equipment for aluminum fluoropolymer mechanically activated energetic material

A technology of mechanical activation and filtering device, which is applied in the direction of feeding device, chemical/physical/physicochemical process, filtration and separation, etc., to achieve the effects of difficult ignition, short suction and filtration time, and high process efficiency

Inactive Publication Date: 2019-12-03
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes an aluminum fluoropolymer mechanically activated energetic material passivation and filtering device to solve the problem of how to improve the safety of the discharge process of the aluminum powder / polytetrafluoroethylene mechanically activated energetic material preparation process and the technology for improving process efficiency question

Method used

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  • Passivation and filter equipment for aluminum fluoropolymer mechanically activated energetic material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Using the passivation and filtering device of the present invention, the average particle size of the aluminum powder in the raw material used to prepare the mechanically activated energetic material is 4-5 μm; the brand of the aluminum powder is FLQT-4, and the polytetrafluoroethylene specification model is CGUF201B. The aluminum powder / polytetrafluoroethylene mechanically activated energetic material is composed of aluminum powder and polytetrafluoroethylene, and the mass ratio of aluminum powder and polytetrafluoroethylene is 26.7:73.5. As a comparison, the existing technology adopts static direct discharge and natural gravity filtration technology, and the specification ratio of aluminum powder and polytetrafluoroethylene remains unchanged.

[0028] The performance test data shows that the detonation heat of the aluminum powder / polytetrafluoroethylene mechanically activated energetic material prepared by the present invention is increased by 3.58%, and the impact sen...

Embodiment 2

[0030] Using the passivation and filtering device of the present invention, the average particle size of the aluminum powder in the raw material used to prepare the mechanically activated energetic material is 26 μm; the brand of the aluminum powder is FLQT-2, and the polytetrafluoroethylene specification model is CGUF201B. The aluminum powder / polytetrafluoroethylene mechanically activated energetic material is composed of aluminum powder and polytetrafluoroethylene, and the mass ratio of aluminum powder and polytetrafluoroethylene is 26.7:73.5. The preparation steps refer to Example 1. As a comparison, the existing technology adopts static direct discharge and natural gravity filtration technology, and the specification ratio of aluminum powder and polytetrafluoroethylene remains unchanged.

[0031] The performance test data shows that the detonation heat of the aluminum powder / polytetrafluoroethylene mechanically activated energetic material prepared by the present invention...

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Abstract

The invention provides passivation and filter equipment for an aluminum powder / polytetrafluoroethylene mechanically activated energetic material. The equipment includes a passivation tank, a passivation tank support, an explosion-proof electric motor, stirring paddles, a gas inlet valve, a gas discharge pipe, a pressure gauge, a feed opening, a feed valve, a material outlet, a filter hopper, a material conveying pipeline, a pneumatic three-way ball valve, a first pneumatic diaphragm pump, a second pneumatic diaphragm pump, a filtrate receiving device, a filter device support and a filter cloth. The equipment provided by the invention is suitable for passivation and filter treatment of the aluminum powder / polytetrafluoroethylene mechanically activated energetic material, and can effectivelyimprove the safety of the material outlet process of the aluminum powder / polytetrafluoroethylene mechanically activated energetic material and improve process efficiency; and compared with a materialprepared by an original process, the aluminum powder / polytetrafluoroethylene mechanically activated energetic material prepared by the equipment provided by the invention has the advantages of high energy and low sensitivity.

Description

technical field [0001] The invention belongs to the technical field of energetic material production, in particular to an aluminum powder / polytetrafluoroethylene mechanically activated energetic material passivation and filtering device. Background technique [0002] Metal / fluoropolymer mechanically activated energetic materials are usually composed of metal powder and fluoropolymer under the action of mechanical energy to obtain a composite reaction system in which the diffusion distance between components reaches nanometer and molecular levels. The components of the composite material are refined, uniformly mixed and activated under mechanical action, and have higher density and thermal effect. For example, the thermal effects of PTFE and 26.5% Al and 32.5% Mg mixtures are 8665 and 9540kJ / kg respectively, exceeding the detonation heat of ideal explosives and many aluminum-containing explosives. Research on aluminum powder / PTFE mechanically activated energetic materials It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/18B01J4/00B01F7/18B01F15/02B01D29/085B01D29/05
CPCB01J19/18B01J19/0053B01J19/0066B01J4/001B01D29/085B01D29/05B01F27/90B01F35/75
Inventor 陶俊冯晓军王晓峰薛乐星潘文赵娟冯博封雪松
Owner XIAN MODERN CHEM RES INST
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