Vertical shaft explosion door Product Introduction
Vertical shaft explosion door is used for vertical well head wind, when the fan to stop running,
explosion door automatically rises. When disasters in mines, explosion-proof door opens
automatically, releasing energy, which protect the fan from damage.
Vertical shaft explosion door Structure
It consists of explosion-proof cover, the wind device, a heavy hammer device and other parts.
1、the structure of the explosion-proof cover by cone is divided into four parts connected, each part by
steel plate, Angle steel compound forming
2、back to the wind device for the pressure plate type
3、heavy hammer device consists of a heavy hammer, pulley,counterweight
4、the sealing method using welding steel outer panels fixed δ15rubber
Vertical shaft explosion door Parameters
Most are based on shaft diameter selection, and its ability to adapt to different suction fan. According
to the negative pressure fan can be divided into no more than 350 mm water column and not greater
than 450 mm water column two categories; According to the mouth of the well diameter points have
three specifications: maximum fan pressure of 4.413 KPa.
Vertical shaft explosion door Notices
1、Choose fan negative pressure within the scope of the maximum vertical wind Wells explosion door to
avoid risk value negative pressure condition.
2、According to the actual need to increase or decrease in weight to ensure that the automatic rises when
the fan stop explosion door check regularly.
3、The choice of sealing medium can also use oil or oil/water mixture, water seal can be used in don’t