Application of multilayer foamed iron-nickel metal materials in isolation and suppression of gas explosion

A metal material, gas explosion technology, applied in the direction of testing metals, material inspection products, mining equipment, etc., can solve problems such as gas disasters

Inactive Publication Date: 2018-03-09
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, secondary gas explosi

Method used

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  • Application of multilayer foamed iron-nickel metal materials in isolation and suppression of gas explosion
  • Application of multilayer foamed iron-nickel metal materials in isolation and suppression of gas explosion
  • Application of multilayer foamed iron-nickel metal materials in isolation and suppression of gas explosion

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specific Embodiment approach 1

[0039] Specific implementation mode one: the application of multi-layer foamed iron-nickel metal material in the suppression of gas explosion in this embodiment, the specific method is as follows:

[0040] Place 2-3 layers of porous iron-nickel metal materials at intervals, the distance between two adjacent layers of foamed iron-nickel metal materials is 5-20cm, and the thickness of each layer of foamed iron-nickel metal materials is 2-3cm, close to the detonation point The pore size ratio of the foamed iron-nickel metal material on one side is 20-30PPI, and the pore size ratio of the rest of the foamed iron-nickel metal material is 10-30PPI, and the foamed iron-nickel metal material is composed of 10%-30% by weight It is composed of nickel and 70% to 90% iron, and the through porosity is 80% to 90%.

specific Embodiment approach 2

[0041] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that two layers of foamed iron-nickel metal materials are placed at intervals, and the arrangement distance between adjacent two layers of foamed iron-nickel metal materials is 5-10 cm, close to the detonation point The foamed iron-nickel metal material on one side has a porosity of 30PPI. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0042] Specific embodiment three: the difference between this embodiment and specific embodiment one is: 2 layers of foamed iron-nickel metal materials are placed at intervals, the distance between the two layers of foamed iron-nickel metal materials is 5cm, and the iron foam on the side near the detonation point The nickel metal material has a porosity of 30PPI and a thickness of 2cm, and the foamed iron-nickel metal material on the other side has a porosity of 30PPI and a thickness of 3cm. Others are the same as in the first embodiment.

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Abstract

The invention relates to an application of multilayer foamed iron-nickel metal materials and aims to provide an application of the multilayer foamed iron-nickel metal materials in isolation and suppression of gas explosion in order to explore the isolation and suppression conditions of the multilayer foamed iron-nickel metal materials in the aspect of the gas explosion. A method comprises steps asfollows: 2-3 layers of the foamed iron-nickel metal materials are arranged at intervals, the distance between every two adjacent foamed iron-nickel metal materials is 5-20 cm, the thickness of each layer of the foamed iron-nickel metal material is 2-3 cm, porosity of the foamed iron-nickel metal material close to the side of a detonating point is 20-30 PPI, and porosity of the other foamed iron-nickel metal materials is 10-30 PPI. The invention applies to the field of gas explosion suppression and isolation.

Description

technical field [0001] The invention relates to the application of a multilayer foamed iron-nickel metal material. Background technique [0002] As the main energy source in my country, coal accounts for about 70% of the primary energy structure. For a long time to come, the status of coal as the main energy source will not change. The coal industry is an important basic industry related to the national economic lifeline and energy security. [0003] More than 90% of the coal produced in my country is underground underground mining, and with the increase of mine production cycle, the average mining depth of production mines is basically close to 500m, and extends to deeper formations at a rate of 20m per year. Underground coal seam occurrence conditions and mine mining conditions are complex, coupled with the increase in coal mining depth and production capacity, the safety situation of coal production is not optimistic. In the past ten years, serious accidents have occurr...

Claims

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Application Information

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IPC IPC(8): E21F17/103E21F5/00G01N33/20
CPCE21F17/103E21F5/00G01N33/20
Inventor 魏春荣王树桐孙建华杨庆江张锦鹏刘振文姜天文刘佳佳王丹刘宝磊
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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