Electric wind windows and control systems applied to the mine ventilation system

Abstract

The invention discloses an electric window and its control system applied to a mine ventilation system in the technical field of mine ventilation, including a main mine ventilation system, a PLC system and an electric window. The invention is applied to an electric window and its control of a mine ventilation system The system, based on the maximum stroke of the electric windshield, the pitch of the ball screw, and the number of pulses per revolution of the code disc, establishes the functional relationship between the wind pressure difference, the number of pulses, and the moving distance of the electric windshield as a function of controlling the forward and reverse start and stop of the explosion-proof motor. Based on the theoretical basis of real-time display, the preset value of each electric window is given to realize real-time monitoring and adjustment of the air volume in various parts of the mine. The adjustment accuracy is high and the engineering amount is small, which can fully meet the ventilation needs of the mine.

Description

technical field [0001] The invention relates to the technical field of mine ventilation, and the specific field is an electric window applied to a mine ventilation system and a control system thereof. Background technique [0002] Ventilation is an important guarantee for safe mine mining. Mine ventilation can provide enough fresh air underground to meet the oxygen needs of workers. Mine ventilation can dilute toxic and harmful gases and dust underground, so that the concentration of mine dust is within a safe range, ensuring Underground air quality can provide a good working environment for the staff. Mine ventilation can also reduce the wind pressure difference between the goaf and the mined area, reduce air leakage to prevent and eliminate fires, and distribute the air in the air network by adjusting the wind windows. The air volume is one of the important means in mine ventilation to ensure the air volume demand of each main air location. Due to the layout requirements o...

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Problems solved by technology

[0002] Ventilation is an important guarantee for safe mine mining. Mine ventilation can provide enough fresh air underground to meet the oxygen needs of workers. Mine ventilation can dilute toxic and harmful gases and dust underground, so that the concentration of mine dust is within a safe range, ensuring Underground air quality can provide a good working environment for the staff. Mine ventilation can also reduce the wind pressure difference between the goaf and the mined area, reduce air leakage to prevent and eliminate fires, and distribute the air in the air network by adjusting the wind windows. The air volume is one of the important means in mine ventilation to ensure the air volume demand of each main air location. Due to the layout requirements of underground excavation and roadway, the underground air volume needs to be frequently adjusted. The existing adjustment method is manual adjustment, but manual air volume adjustment cannot The realization of real-time monitoring and adjustment of the air volume in the roadway, as well as the problems of low adjustment accuracy and large engineering volume, have been unable to meet the ventilation needs of the mine. Therefore, it is necessary to develop a method of automatically adjusting the windshield to complete the air volume adjustment of the mine.

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