Ventilation device for coal mine

• Main Authors: ZHOU WENBIN, LIU ZHANMING, SHI HUITANG, WU BIN, SHENG ZHUWEN, SUN FULONG, SUN JING, WANG TIANLE, LUO DENGMEI, WANG BINGSHAN, TAN JIAGUI, GUO JIANZHONG
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• 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 relates to the field of coal mines, in particular to a ventilation device for a coal mine. The ventilation device for the coal mine comprises an air bellow, a first filter screen, a rotary driver, a rotary shaft and an impactor. The first filter screen is installed in the air box, the rotating shaft is in rotating fit with the portion, close to the first filter screen, of the air box, and the impact body is connected with the rotating shaft through a strip-shaped flexible piece. The rotary driver is in transmission connection with the rotating shaft and used for driving the rotating shaft to rotate, and the impactor can impact the first filter screen when the rotating shaft rotates. According to the ventilation device for the coal mine, the first filter screen can be dredged and cleaned, dust is prevented from blocking the first filter screen, the gas purification efficiency can be improved, the amount of dust penetrating through the first filter screen can be reduced, and the purification e