MFBL series vertical air shaft explosion-proof door product introduction
MFBL series vertical air shaft explosion-proof door is used for vertical air shaft wellhead, when the fan stops, it can automatically open the wellhead to protect the mine. In the event of a mine disaster, the blast door opens automatically to release energy and protect the main wind turbine from damage.

MFBL Series Vertical Air Well Explosion Door Description:

1. This explosion-proof door is used for vertical air shafts, and it is suitable for negative pressure of fans, which is not more than 3432Pa and 4413Pa.

2. The weight of the hammer device can be increased or decreased according to the actual needs to ensure that the explosion-proof door is automatically raised when the fan stops running.

3. Liquid sealing, sealing medium using engine oil or oil-water mixture, non-icing areas can be water-sealed.

The main structure of MFBL series vertical air shaft explosion-proof door:

MFBL series vertical air shaft explosion-proof door is composed of explosion-proof cover + return air device + heavy hammer device and other components.

1. Explosion-proof cover: It adopts a conical structure, which is connected by four parts, six parts, eight parts, etc., and each part is welded and formed by steel plate and angle steel.

2. The anti-wind device is a pressure plate type.

3. The heavy hammer device is composed of a heavy hammer frame, a pulley, and a heavy configuration.

4. The sealing method adopts steel plate group welding, the outer ring is fixed with 15 rubber plates, and it is sealed.

Contact: Manager Fan

Mobile phone number: 18660761529

QQ：2710561246

Address: No. 11, Kaiyuan Road North, High-tech Zone, Jining City, Shandong Province