Device and method for integrated control of acid wastewater plugging and discharging of abandoned mine

A device for integrated control of acid wastewater plugging and discharging of an abandoned mine, comprising an airtight wall, the airtight wall is arranged in a position for partitioning a mine waste water discharging channel and a whole cross-section of the mine waste water discharging channel is filled with the airtight wall, wherein,

• a central controller, a CO2 gas source, an agent bucket, a first siphon pipe and a liquid storage bucket are arranged on an outer side of the airtight wall, the central controller is connected to a power supply and a remote alarm, the CO2 gas source leads to an inner side of the airtight wall through a gas conveying pipe, and the agent bucket is connected to the inner side of the airtight wall through an agent supply pipeline;
• an upper inlet and a lower inlet of the first siphon pipe is configured in the inner side of the airtight wall and an outlet of the first siphon pipe is configured in the outer side of the airtight wall, a height of the outlet of the first siphon pipe is less than a height of the lower inlet, the upper inlet is a horn-shaped opening downwards and a floating ball is arranged in the horn-shaped opening, the upper inlet and lower inlet are both provided with a filter screen;
• an overflow pipe is arranged in the liquid storage bucket, the overflow pipe leads to an upper part of the inner side of the airtight wall, and an overflow port of the overflow pipe is higher than a highest point position of the first siphon pipe;
• a plurality of monitoring sensors are arranged in the inner side of the airtight wall, and the plurality of monitoring sensors are connected to the central controller;
• and
• a flood discharge valve is arranged at a bottom of the airtight wall, a fixed pulley block is arranged above the flood discharge valve, and two ends of the fixed pulley block are separately connected to the liquid storage bucket and the flood discharge valve.