Coal mine underground ventilation device
A technology of underground ventilation and air exchange device, which is applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc. It can solve the problems of inability to guarantee gas smoothness, low compressive strength of exhaust pipes, and damage to exhaust fans and exhaust fans and other problems, to achieve the effect of protecting normal operation, increasing its own support strength, and preventing touch
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[0024] Hereinafter, embodiments of the present invention will be described in detail, examples of which are shown in the accompanying drawings and the following description. While the invention will be described in conjunction with exemplary embodiments, it will be understood that the description is not intended to limit the invention to the exemplary embodiments. On the contrary, the invention is to cover not only the exemplary embodiment, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims Inside.
[0025] see figure 1 to attach Figure 7 , a coal mine underground ventilation device, comprising: a device body 1, a protective box 2, a locking door 3, a fixing bolt 301, a grid 302, a reinforced doorpost 303, a control panel 4, an exhaust pipe 5, a reinforced Inner pipe 501, exhaust fan 6, power-off control panel 7, reserve power supply 8 and exha...
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