Automatic drainage device for air return main roadway

• Main Authors: MAO XIAOWA, WANG JIE, LEI HONGMIN, LI JUN
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The utility model discloses an automatic drainage device for a main air return roadway, which comprises a main air return roadway and an auxiliary main transportation roadway, a first concrete bottom plate is fixedly connected inside the main air return roadway, a second concrete bottom plate is fixedly connected inside the auxiliary main transportation roadway, a drainage vertical hole is arranged inside the first concrete bottom plate, and a ditch is arranged inside the second concrete bottom plate; the automatic drainage device has the advantages that accumulated water on the upper portion can be automatically drained according to the principle of a flush toilet, no air leakage phenomenon exists after drainage is completed, the effects of automatic drainage and air leakage prevention are achieved, labor is reduced, cost is reduced, working efficiency is improved, post labor is reduced, automatic drainage is achieved, mine air loss is eradicated, and the automatic drainage device is suitable for popularizat