Automatic switching pneumatic interlocking crashproof air door and control method thereof

Abstract

The invention discloses an automatic switch pneumatic linkage anti-collision air door, solving the safe hidden trouble to the production of coal mine because the reliable closedown can not be realized in the prior air door, provided with simple structure, convenient usage reliable closedown. The structure is that it comprises a pair of air doors and a railway passes through them; at two sides of said air doors a starting device is set and on each air door there are a controller of air door and a closedown switch of air door; at the same time on railways there are car stoppers respectively; the starting device, the air controller, the closedown switch of air door and car stoppers are connected with the central controller; the central controller controls the air door in interlocking.

Description

technical field [0001] The invention relates to a damper used in a coal mine ventilation system, in particular to an automatic switch pneumatic chain anti-collision damper and a control method thereof. Background technique [0002] The damper is a ventilation structure that not only cuts off the wind flow but also allows pedestrians to pass through. It plays a vital role in the coal mine ventilation system. It is required to set more than two dampers. In locomotive transportation, the distance between the two dampers should be greater than the length of a train, so as to prevent the two dampers from opening at the same time and causing a short circuit of the air flow, which will affect the stability of the ventilation system. The quality of the damper management is of great practical significance for the adjustment of the air flow in the coal mine ventilation system, the supply of air volume at each underground location, the balance and stability of the ventilation system, ...

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