System for storing abandoned concrete and sealing carbon dioxide in old abandoned mine

Abstract

The invention discloses a system for storing abandoned concrete and sealing carbon dioxide in an old abandoned mine. A water storage tank communicates with an inlet of a pulsating pump through a firstpipeline, and an outlet of the pulsating pump communicates with one of ports of a first three-way valve through a second pipeline; the other two ports of the first three-way valve communicate with one end of a third pipeline and one end of a fourth pipeline correspondingly; the other end of the third pipeline communicates with one of ports of a second three-way valve, and the other two ports of the second three-way valve communicate with a discharging outlet of a hopper and one end of a fifth pipeline correspondingly; and the other end of the fourth pipeline penetrates through a high-pressuresealing cover to extend into a goaf of the mine, and the other end of a sixth pipeline penetrates through the high-pressure sealing cover to extend into a coal seam gas extraction pipe. The goaf of the abandoned mine is filled with the abandoned concrete and meanwhile filled with carbon dioxide gas, accordingly, the problems of storing the abandoned concrete, filling the abandoned mine and sealing the carbon dioxide are solved, and land pollution and the atmospheric greenhouse effect are reduced.

Description

technical field [0001] The invention relates to a system for placing waste concrete in an old abandoned mine and sequestering carbon dioxide. Background technique [0002] Concrete is the largest building material used by human beings, and its theory and technology have become increasingly mature. However, at present, a large amount of concrete is applied, which has brought negative impacts on human settlements and ecosystems. The average lifespan of Chinese buildings is only 35 years, which is far lower than the 70-year lifespan in Europe. Urban demolition and engineering renovations also waste a lot of concrete. According to existing data, it is estimated that by 2020, the amount of waste concrete in my country will be It has reached 628 million tons. Since 97% of the waste concrete in China is directly landfilled and piled up in the open air, a large amount of land resources will be wasted and the environment will be polluted. Therefore, how to dispose of waste concrete ...

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Problems solved by technology

[0005] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a system for placing waste concrete and sequestering carbon dioxide in an old abandoned mine, filling waste concrete into the goaf of the abandoned m

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