Coal mine area gas-solid-liquid three-waste cooperative emission reduction system and method

• Main Authors: LIU TING, YU XU, LIN BAIQUAN, LI MINGYANG, XU JIZHAO, CHEN MENG, GUO CHANG
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention provides a coal mine area gas-solid-liquid three-waste collaborative emission reduction system and method, and belongs to the technical field of coal mine area waste emission reduction. A waste sealing and storing area is formed in the mining process of the coal seam located in the overlying rock stratum, the coal seam and the bottom plate rock stratum, and the overlying rock stratum located above the waste sealing and storing area sinks to form a separation layer. Waste fly ash generated by a hot spot plant is introduced into the grouting subsystem to form slurry, and the slurry is introduced into the waste storage area and the separation layer through the grouting well, and waste gas generated by a thermal power plant is introduced into the gas injection subsystem, purified and filtered and then introduced into the waste gas filling area through the gas injection well. The grouting subsystem and the gas injection subsystem jointly introduce slurry and waste gas into the waste storage area, min