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Gas expanding agent and application thereof

A gas expansion, single-base drug technology, applied in the field of chemistry, to achieve good effects of reducing flying stones and crushing

Inactive Publication Date: 2017-02-22
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on gas expansion agents in our country is still in its infancy, and it is still in a stage that has yet to be explored.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Ammonium nitrate and nitrocellulose

[0020] The proportioning ratio of ammonium nitrate and nitrocellulose is 65%: 35%, and the quality of the following components is determined:

[0021] (1) The masses of ammonium nitrate and nitrocellulose are 70mg and 30mg respectively;

[0022] According to the test results, the highest pressure is 0.313Mpa, and the time to reach the highest pressure is 0.06 seconds.

[0023] (2) The masses of ammonium nitrate and nitrocellulose are 65mg and 35mg respectively;

[0024] According to the test results, the highest pressure is 0.524Mpa, and the time to reach the highest pressure is 0.06 seconds.

[0025] (3) The masses of ammonium nitrate and nitrocellulose are 60mg and 40mg respectively.

[0026] According to the test results, the highest pressure is 0.494Mpa, and the time to reach the highest pressure is 0.08 seconds.

Embodiment 2

[0028] Ammonium Nitrate and Black Powder

[0029] The ratio of ammonium nitrate and black powder is 3:5. Then determine the following proportioning schemes:

[0030] (1) The masses of ammonium nitrate and black powder are 37.5mg and 62.5mg respectively;

[0031] According to the test results, the highest pressure is 0.513Mpa, and the time to reach the highest pressure is 0.07 seconds.

[0032] (2) The masses of ammonium nitrate and black powder are 32.5mg and 67.5mg respectively;

[0033] According to the test results, the highest pressure is 0.448Mpa, and the time to reach the highest pressure is 0.08 seconds.

[0034] (3) The masses of ammonium nitrate and black powder are 27.5mg and 72.5mg respectively;

[0035] According to the test results, the highest pressure is 0.437Mpa, and the time to reach the highest pressure is 0.10 seconds.

[0036] (4) The mass ratio of ammonium nitrate to black powder is 22.5 mg and 77.5 mg.

[0037] According to the test results, the hig...

Embodiment 3

[0039] Ammonium nitrate and 5 / 7 single base drug

[0040] Although some additives have been added to these single-base medicines, the additives do not account for the main components and have relatively little impact on the chemical molecular formula, so the proportioning can still be carried out according to the proportioning scheme of the single-base medicine and ammonium nitrate.

[0041] (1) The masses of ammonium nitrate and 5 / 7 single-base drug are 70mg and 30mg respectively;

[0042] According to the test results, the highest pressure is 0.116Mpa, and the time to reach the highest pressure is 0.03 seconds.

[0043] (2) The masses of ammonium nitrate and 5 / 7 single-base drug are 65mg and 35mg respectively;

[0044] According to the test results, the highest pressure is 0.163Mpa, and the time to reach the highest pressure is 0.02 seconds.

[0045] (3) The masses of ammonium nitrate and 5 / 7 single-base drug are 60mg and 40mg respectively.

[0046] According to the test ...

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Abstract

The invention discloses a gas expanding agent and application thereof. The gas expanding agent is prepared from ammonium nitrate and single-base powder or nitrocotton according to the mass ratio of (60-70):(30-40). The gas expanding agent cannot generate harmful and poisonous gas to damage the ambient environment or harm body health of ambient constructors and can control flying of raise dust; all reactants can be prepared into gas under the fully oxidized condition, no residue is retained, and generally, residues contain poisonous ingredients and cannot be recycled; the gas expanding agent is embedded into hole, a large amount of gas is generated after the agent is lit to burn, an expansion effect is generated in the hole to destroy the concrete, and negative influences such as flying stone, noise, vibration and dust which are generated in traditional blasting are greatly reduced while the effect same as that obtained in traditional blasting is achieved.

Description

technical field [0001] The invention relates to the technical field of chemical methods, in particular to the composition and application of a gas expansion agent mainly composed of ammonium nitrate. Background technique [0002] In today's society, China's national economic development and economic construction cannot do without the promotion of engineering blasting, a special industry. In various departments of our country's national economy, there is no doubt that blasting technology has been applied to various departments. , and blasting technology has proud achievements and gratifying results. To list the following examples, the mining sector uses blasting technology to uncover the ore overburden, the excavation of underground roadways, and the blasting technology in open-pit mining can be used for underground mining and ore mining blasting; the directional blasting technology for building water dams is used It is used by water conservancy related departments, as well ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06D5/06F42D3/00
CPCC06D5/06F42D3/00
Inventor 陈聪黄寅生郭钰雯徐建勇何亚新付叔阳张冬冬
Owner NANJING UNIV OF SCI & TECH