A ventilation device that can adjust the air intake by itself based on the mine

Abstract

The invention belongs to the technical field of mines, and in particular relates to a mine-based ventilation device capable of self-adjusting the air intake. The inside of the mounting base is connected to a rotating shaft, and the outer surface of the rotating shaft is fixedly connected to rotating blades. The inside of the protective frame is fixedly connected with a protective frame, and the inside of the protective frame is provided with a diversion groove. The inside of the protective frame is movably connected with a limit spring, and one side of the limit spring is movably connected with a limit clip. The upper end of the position card bar is fixedly connected with the limit post, the upper end of the limit post is fixedly connected with a support seat, the inner wall of the protective frame is movably connected with a compression spring, and one side of the compression spring is fixedly connected with a top column, so One side of the push column is fixedly connected with a push rod, and a limiting groove is opened inside the push rod. When in use, it can quickly extract part of the gas inside the mine, which ensures the ventilation of the mine and improves the safety of mine operations.

Description

technical field [0001] The invention belongs to the technical field of mines, and in particular relates to a mine-based ventilation device capable of self-adjusting air intake. Background technique [0002] my country's production mines "three under" coal pressure amounted to 14.3 billion tons. With the rapid development of my country's economy, the development and utilization of coal resources are getting higher and higher. Under buildings, under railways, under water bodies and above confined water ("three Next up") coal mining has become the main problem faced by coal mining. For a long time, my country has mainly used several methods such as village relocation, strip mining, water-sand filling, and overlying rock separation layer grouting. [0003] Due to the deep excavation of the mine, there is often more gas under the mine, so it is often necessary to have a better ventilation system to ventilate and extract air from the bottom of the mine to ensure the safety of the ...

AI Technical Summary

Problems solved by technology

[0003] Due to the deep excavation of the mine, there is often a lot of gas below the mine, so a better ventilation system is often needed to ventilate and extract the air below the mine to ensure the safety of the mine's internal operations. Some ventilation devices are now It is only ventilated at a certain rate, and cannot be adjusted according to the internal conditions of the mine. At the same time, under long-term use, its blades often accumulate more impurities, which is troublesome to clean up and affects the service life of the ventilation device. , in view of this, research and improve the existing structure and defects, and provide a mine-based ventilation device that can adjust the air intake by itself, in order to achieve more practical purposes

Images