Mechanical interlocking air door for mine

Abstract

The invention relates to a mechanical interlocking air door for a mine. The mechanical interlocking air door comprises a front air door body (1) and a reverse air door body (2), the top of a door leaf of the front air door body (1) is connected with a first anchor rod (4), the top of a door leaf of the reverse air door body (2) is connected with a second anchor rod (5), an interlocking device (3) for controlling the opposite opening and closing action of the front air door body (1) and the reverse air door body (2) is further included, the interlocking device (3) is arranged in a horizontal box (6), and the first anchor rod (4) and the second anchor rod (5) are respectively connected with the interlocking device (3) through steel wire ropes. The mechanical interlocking air door can be used as a safety product of a mine ventilation system, and the potential safety hazards of mine ventilation are greatly reduced under the conventional operation.

Description

technical field [0001] The invention belongs to a compound damper for entering and returning lanes in a mine ventilation system, in particular to a mechanical interlocking damper for mines. Background technique [0002] At present, in order to have a good air environment and safe production in coal mines, there are large-scale ventilation equipment at the wellhead of coal mines to forcibly send air to the underground, and the air sent fills the entire mine. There are dampers installed inside. In order to avoid the loss of air supply and short-circuit the air flow and cause safety hazards, each of the dampers mentioned above has two doors. The rules for passing through the two doors can only be to open one of the doors to pass, and the other door must be opened. In the closed state, after passing through the first damper, when the other damper is opened to pass, the previous damper must be closed. [0003] Because the damper has a certain pressure under the effect of wind p...

AI Technical Summary

Problems solved by technology

[0003] Because the air door has a certain pressure under the action of wind pressure, when passing through the air door, the two doors do not have the interlocking function, and it is easy to cause the two doors to be opened at the same time, causing the air flow to short circuit and causing safety hazards, affecting normal production

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