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Preparation method of blasting delay composition

A technology of delaying charge and preparation steps, applied in the field of blasting delaying charge preparation, can solve the problems of delaying accuracy easily drifting with time, poor storage stability, etc., and achieve the effects of reducing porosity, reducing porosity and reducing interference

Inactive Publication Date: 2017-09-22
常州武城服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is: Aiming at the problem that the delay accuracy of the delay medicine product prepared by the traditional process tends to drift with time and the storage stability is not good, a preparation method of the blast delay medicine is provided

Method used

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  • Preparation method of blasting delay composition

Examples

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example 1

[0022]Pour silicon powder and corrosive acid solution into a beaker at a mass ratio of 1:30, then move the beaker into an ultrasonic oscillator, and oscillate ultrasonically for 2 hours at an ultrasonic frequency of 40kHz, then filter the material in the beaker to obtain a filter residue, and Wash with 10% hydrofluoric acid solution for 3 times and deionized water for 3 times, then move the filter residue after washing with deionized water into an oven, and dry it to constant weight at 105°C. Silicon powder, then mix porous silicon powder and dopamine solution with a mass concentration of 2g / L at a mass ratio of 1:60 for 30 minutes, then filter, wash and dry to obtain modified porous silicon powder; then mass ratio of 1: 40 Mix the red lead with the acid solution and move it into a magnetic stirrer with digital display speed measurement and constant temperature. Under the condition of temperature of 45°C and rotation speed of 300r / min, stir and react at constant temperature for...

example 2

[0024] Pour silicon powder and corrosive acid solution into a beaker at a mass ratio of 1:30, then move the beaker into an ultrasonic oscillator, and oscillate ultrasonically for 2 hours at an ultrasonic frequency of 40kHz, then filter the material in the beaker to obtain a filter residue, and Wash with 10% hydrofluoric acid solution for 3 times and deionized water for 3 times, then move the filter residue after washing with deionized water into an oven, and dry it to constant weight at 105°C. Silica powder; then mix the lead red and the acid solution according to the mass ratio of 1:40, then move it into a digital display speed measuring constant temperature magnetic stirrer, under the condition of temperature 45 ℃ and speed 300r / min, stir and react at constant temperature for 30min, and then filter , washing and drying, porous red lead; in parts by weight, 200 parts of mass fraction are added successively in the reactor to be 12% barium nitrate solution, 100 parts of mass fra...

example 3

[0026] Pour silicon powder and corrosive acid solution into a beaker at a mass ratio of 1:30, then move the beaker into an ultrasonic oscillator, and oscillate ultrasonically for 2 hours at an ultrasonic frequency of 40kHz, then filter the material in the beaker to obtain a filter residue, and Wash with 10% hydrofluoric acid solution for 3 times and deionized water for 3 times, then move the filter residue after washing with deionized water into an oven, and dry it to constant weight at 105°C. Silicon powder, then mix porous silicon powder and dopamine solution with a mass concentration of 2g / L at a mass ratio of 1:60 for 30 minutes, then filter, wash and dry to obtain modified porous silicon powder; then mass ratio of 1: 40 Mix the red lead with the acid solution and move it into a magnetic stirrer with digital display speed measurement and constant temperature. Under the condition of temperature of 45°C and rotation speed of 300r / min, stir and react at constant temperature fo...

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Abstract

The invention discloses a preparation method of a blasting delay composition, and belongs to the technical field of preparation of blasting materials. The preparation method comprises the following steps: firstly, corroding silicon powder by utilizing corrosive acid liquid to form porous silicon powder; then modifying the porous silicon powder by utilizing dopamine to obtain modified porous silicon powder; then corroding and mixing by utilizing the acid liquid, and corroding red lead, so as to form porous red lead; modifying by utilizing the dopamine to prepare modified porous red lead; then mixing the modified porous silicon powder and the modified porous red lead with a barium nitrate solution, a polyvinyl alcohol solution and the like; generating barium sulfate sediment in a system by taking sodium sulfate as a precipitant; after ageing, filtering, washing and drying; then treating by utilizing nitrogen gas loaded with titanium isopropoxide and water-containing nitrogen gas in sequence to obtain the blasting delay composition. The blasting delay composition prepared by the preparation method has high delay precision and good storage stability, and a condition that the delay precision is drifted along storage time can be effectively avoided.

Description

technical field [0001] The invention discloses a preparation method of a blasting delay medicine, which belongs to the technical field of blasting material preparation. Background technique [0002] The delay drug is a time-controlling element, which is generally ignited by the flame of the cap and burns steadily to control the time of action to ignite or detonate the next element in the sequence. Although the delay time of delay medicine is not as accurate as electronic delay and mechanical delay, its structure is simple, easy to manufacture, small in size, low in cost, rich in raw materials, temperature-resistant and shock-resistant, wide in delay range, light in weight, safe in use and production, and reliable in action high sex. These advantages of the delay charge make the delay charge components widely used in weapons, aerospace, rockets, missiles, mining and civil blasting. [0003] Delay medicine is mainly composed of oxidizer, combustible agent and retarder partic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06C5/00C06B33/04C06B31/02
CPCC06C5/00C06B31/02C06B33/04
Inventor 牟建伟许蘅
Owner 常州武城服饰有限公司
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