Microfluidics-based initiating explosive synthesis system and method thereof

A technology of microfluidic technology and synthesis method, which is applied in the field of pyrotechnics and detonating devices, which can solve the problems of large waste of raw materials, achieve low energy and material consumption, ensure consistency, and achieve good economic benefits.

Active Publication Date: 2013-10-02
NANJING UNIV OF SCI & TECH
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high sensitivity of the primary explosive and the characteristics of easy conversion from combustion to detonation, extra care must be taken in the process of handling. A complete set of complicated safety technologies such as drying temperature, anti-static and shock-absorbing buffer measures, and the waste water must be exploded first and then processed, etc., will waste a lot of raw materials
[0005] At the same time, in terms of the crystallization control of the primer, in order to obtain a smooth surface, uniform particle d

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microfluidics-based initiating explosive synthesis system and method thereof
  • Microfluidics-based initiating explosive synthesis system and method thereof
  • Microfluidics-based initiating explosive synthesis system and method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The present invention is based on the method for synthesizing primer of microfluidic technology, comprising the following steps:

[0028] Step 1, preparing each reaction solution and crystal form control agent of the target primary explosive, adding different reaction solutions to different syringes in the reaction syringe group, and adding the crystal form control agent to another syringe of the reaction syringe group separately;

[0029] Refer to "Primer Chemistry and Technology" of National Defense Industry Press to determine each part of the reaction liquid and crystal form control agent of the target primer;

[0030] Step 2, adding the carrier liquid into the carrier liquid syringe, the carrier liquid is liquid paraffin or tetradecane;

[0031] Step 3, according to the reaction conditions of the target primary explosive, set the flow rate parameters of the two syringe pumps and the water bath temperature of the water bath heating device on the main control computer...

Embodiment 1

[0036] Embodiment 1: the preparation of crystalline lead trinitroresorcinol

[0037] Step 1, prepare two parts of reaction solutions of lead trinitroresorcinol crystallization target primer: 0.1M lead nitrate aqueous solution and 0.05M trinitroresorcinol sodium solution, mix 0.1M lead nitrate aqueous solution and 0.05M trinitroresorcinol sodium solution Add the sodium nitroresorcinol solution into different syringes in the reaction syringe group respectively;

[0038]Step 2, adding the carrier liquid paraffin into the carrier liquid syringe;

[0039] Step 3, according to the reaction conditions of the target primary explosive, set the flow rate parameters of the two syringe pumps and the water bath temperature of the water bath heating device on the main control computer: set the liquid flow rate of the syringe pump connected to the reaction syringe group to 0.3mL / min , set the liquid flow rate of the syringe pump connected to the carrier liquid syringe group to 1mL / min, and ...

Embodiment 2

[0044] Embodiment 2: Preparation of modified crystalline lead trinitroresorcinol

[0045] Step 1, prepare two parts of reaction liquids of target primer modified crystalline lead trinitroresorcinol: 0.05M lead nitrate aqueous solution and 0.05M trinitroresorcinol magnesium solution, mix 0.05M lead nitrate aqueous solution and 0.05 M trinitroresorcinol magnesium solution was added to different syringes in the reaction syringe group, and the crystal form control agent was configured 3 × 10 -5 mM carboxymethylcellulose and add it separately to another syringe of the reaction syringe set;

[0046] Step 2, adding the carrier liquid paraffin into the carrier liquid syringe;

[0047] Step 3, according to the reaction conditions of the target primary explosive, set the flow rate parameters of the two syringe pumps and the water bath temperature of the water bath heating device on the main control computer: set the liquid flow rate of the syringe pump connected to the reaction syringe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a microfluidics-based initiating explosive synthesis system and a method thereof. The microfluidics-based initiating explosive synthesis system comprises a main control computer and an initiating explosive synthesis unit; the initiating explosive synthesis unit comprises a set of reaction syringes, a micromixer, a liquid loading syringe, a T-shaped connector, a water bath heating unit and two injection pumps. The two injection pumps are both connected to the main control computer, wherein the outlet of one injection pump is connected with the liquid loading syringe, and the outlet of the other injection pump is connected with the set of reaction syringes; the outlet of the set of reaction syringes is connected with the micromixer; the micromixer and the outlet of the liquid loading syringe are connected with two mutually perpendicular outlets of the T-shaped connector respectively; a third outlet of the T-shaped connector is connected with a polyfluortetraethylene pipe arranged in the water bath heating unit. A liquid outputted from the set of reaction syringes is delivered through the micromixer, and is mixed with a liquid outputted from the liquid loading syringe in the T-shaped connector, and then the mixture is delivered into the polyfluortetraethylene pipe arranged in the water bath heating unit through the third outlet of the T-shaped connector. The microfluidics-based initiating explosive synthesis system and the method are high-efficient, safe and environment-friendly.

Description

technical field [0001] The invention relates to the field of pyrotechnics and detonating devices, in particular to a microfluidic technology-based priming powder synthesis system and method thereof. Background technique [0002] Priming powder is a branch of explosives. It is widely used in various pyrotechnics and detonating devices as the starting charge. Its main characteristic is that it is sensitive to external effects. Under the action of heating, static sparks, etc., explosive changes can occur, and quickly change from combustion to detonation. [0003] Although the amount of priming powder used in pyrotechnics and detonating devices is small, the measurement accuracy is required to be high. In actual use, in order to improve production efficiency, group mode constant volume metering is usually used to charge powder. Therefore, it is required that the primary explosive must have a certain crystal shape, particle size and particle size distribution, and the fluidity ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01B21/08C07C205/24C07C201/12C06B21/00
Inventor 朱朋朱莹沈瑞琪叶迎华胡艳吴立志
Owner NANJING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap