One-ventilation and three-prevention accident device for coal mine underground operation prevention

• Main Author: BAI ZHE
• Format: Patent
• Language: Chinese; English
• Published: 23.08.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SEPARATION; TRANSPORTING

The utility model discloses a'one ventilation and three prevention 'accident device for coal mine underground operation prevention, which comprises a hollow device shell, the inner side wall of the device shell is connected with a mounting plate in a sliding manner, a filter screen is embedded in the mounting plate, the inner side wall of the device shell is provided with a functional groove, and the side wall of one side of the device shell is fixedly connected with an air inlet pipe in a penetrating manner; the side wall of the other side of the device shell is fixedly connected with an exhaust pipe in a penetrating mode, the air inlet pipe penetrates and extends into the functional groove, the end, located outside the device shell, of the air inlet pipe is connected with an induced draft fan, a cavity is formed in the side wall of the device shell, and the device shell is rotationally connected with a driving rod in a penetrating mode through a bearing; the two ends of the driving rod penetrate and extend