Patent ID: 11920473
Assignee: NANCHANG UNIVERSITY
Field: Environmental technology (Chemistry)
Classification: CPC E  C  F | IPC C  E  F

Claim 10:
11. The method according to claim 10, wherein,
a second height from the upper inlet of the first siphon pipe to a bottom surface of the airtight wall is two times of a third height from the lower inlet to the bottom surface of the airtight wall, and a first height from a top end of the first siphon pipe to the bottom surface of the airtight wall is three times of the third height from the lower inlet to the bottom surface of the airtight wall;
a height of the water level of the mine water has three cases when the mine water starts to enter the outlet section of the first siphon pipe:
a first case comprises: when the water level of the mine water is raised to the third height, the mine water starting to enter the first siphon pipe from the lower inlet, and a liquid level height in the first siphon pipe is equal to the height of the water level of the mine water, and at such time, the siphoning effect is not formed;
a second case comprises: when the water level of the mine water is raised to the second height, the floating ball subjected to a buoyancy of the mine water floating upward to plug the upper inlet, the mine water entering the first siphon pipe from the lower inlet, the liquid level height in the first siphon pipe is equal to the height of the water level of the mine water, and at such time, the siphoning effect is not formed; and
a third case comprises: when the water level of the mine water is raised to the first height, the mine water entering from the lower inlet in the first siphon pipe and flowing to the outlet of the first siphon pipe, the siphoning effect being formed, and the mine water starting to be discharged continuously by the first siphon pipe; when the water level of the mine water is declined gradually and is lower than the second height of the upper inlet of the first siphon pipe, the floating ball is no longer subjected to the buoyancy of the mine water and falling from the second height of the upper inlet, and at such time, air starting to enter the first siphon pipe through the upper inlet, the mine water no longer entering the first siphon pipe through the lower inlet till the liquid from the upper inlet to an outlet section of the first siphon pipe is discharged to only a section of water column remaining in a reverse U-shaped water sealing pipe at the outlet of the first siphon pipe, and therefore, the siphoning effect is finished and a drainage effect is finished;
during drainage of the first siphon pipe, under impact action of an outlet water flow of the first siphon pipe, a linking rod being bended rotatably downward to drive a mechanical valve to open by a spring, and a CO2 gas source supplements CO2 gas to the mine water through the mechanical valve by the gas conveying pipe.