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Gas of gas spacer

A spacer and gas technology, which is applied in blasting and other directions, can solve the problems of potential safety hazards, high pressure of gas tanks, high pressure, etc., and achieve the effects of ensuring safe production, low pressure resistance performance requirements, and reducing costs

Inactive Publication Date: 2020-06-23
WEIHAI MTI MINING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas filled in the existing gas spacer has the following defects: 1. The gas in the gas spacer is combustible gas, which has potential safety hazards of combustion and explosion in the mining process, and some mining has required that it must be used. Gas, in order to minimize production accidents, gas spacers using non-flammable gases will gradually be popularized in all mining industries
2. The existing gas spacer using non-flammable gas, although the gas is non-flammable, the pressure inside the gas tank is relatively high. As the temperature rises, the pressure inside the gas tank is too high, and there is a hidden danger of high-pressure explosion

Method used

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  • Gas of gas spacer

Examples

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Effect test

Embodiment 1

[0014] A gas spacer gas, which includes acetone and refrigerant R134a, the distribution ratio of acetone and refrigerant R134a in parts by mass is acetone:refrigerant R134a=1:12. The mixture is non-flammable at room temperature. And the pressure generated in the pressure vessel is about 60% of the pressure generated by the single refrigerant R134a in the pressure vessel of the same volume.

Embodiment 2

[0016] A gas spacer gas, which includes acetone and refrigerant R22, the distribution ratio of acetone and refrigerant R22 in parts by mass is acetone:refrigerant R22=1:13. The mixture is non-flammable at room temperature. And the pressure generated in the pressure vessel is about 65% of the pressure generated by the single refrigerant R22 in the pressure vessel of the same volume.

Embodiment 3

[0018] A gas spacer gas, which includes acetone and refrigerant R22, refrigerant R1234ze, the distribution ratio of acetone and refrigerant R22, refrigerant R1234ze in parts by mass is acetone:refrigerant R22:refrigerant R1234ze=1:8:5 . The mixture is non-flammable at room temperature. And the pressure generated in the pressure vessel is about 65% of the pressure generated by the single refrigerant R22 in the pressure vessel of the same volume.

[0019] In the present invention, acetone is mixed with refrigerant and then injected into the pressure vessel to form a non-flammable composition. The composition is used to fill the gas spacer. Under the premise that the mixture formed by mixing acetone and refrigerant is non-flammable, the content of acetone The higher the , the less pressure this mixture (which is liquid at high pressure) exerts on the same pressure vessel.

[0020] The gas used for the gas spacer disclosed by the present invention is non-flammable, and the press...

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Abstract

The invention discloses gas of a gas spacer, and relates to the field of gas spacers. The gas comprises acetone and a non-combustible refrigerant which is gaseous at normal temperature and normal pressure; and the acetone and the refrigerant are mixed in a liquid form in a pressure vessel and are not combustible in the release (vaporization) process. The gas has the advantages of simple proportioning, low cost, convenience in use, capability of greatly reducing the pressure of compressed gas in a gas tank, incombustibility and the like.

Description

technical field [0001] The invention relates to the field of gas spacers. In detail, it is a non-combustible gas spacer with simple proportioning, low cost, convenient use, and can greatly reduce the pressure of compressed gas in a gas tank. Background technique [0002] We know that in the mining process of deep hole blasting in mines, in order to reduce the unit consumption of explosives, reduce shock and waterproof, reduce the foundation, improve the blasting effect and blasting efficiency, it is necessary to use spacers to separate the blasting holes and then fill them step by step. explosives. The gas filled in the existing gas spacer has the following defects: 1. The gas in the gas spacer is combustible gas, which has potential safety hazards of combustion and explosion in the mining process, and some mining has required that it must be used. Combustible gas, in order to minimize production accidents, gas spacers using non-combustible gas will gradually become popular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/08F42D3/04
CPCF42D1/08F42D3/04
Inventor 刘洪波
Owner WEIHAI MTI MINING EQUIP
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