Manual Coal Mine Excavation Ventilation Duct Air Outlet Control Device

Abstract

The invention discloses a manual coal-mine-tunneling ventilation-air-cylinder air outlet control device. The manual coal-mine-tunneling ventilation-air-cylinder air outlet control device comprises a support, a hardness air cylinder and a guiding rail. The hardness air cylinder penetrates through the support, the guiding rail is arranged above the support, hanging cables are connected to the top of the guiding rail, a sleeve is fixed to the top of the support, a sliding block is fixed on the sleeve and matched with the guiding rail, a universal joint is arranged between the top of the hardness air cylinder and the support, a rotating piece of the universal joint extends into the sleeve, a swinging piece of the universal joint is fixed to the top of the hardness air cylinder, a plurality of blades are arranged on an outlet in the hardness air cylinder and form a circular-truncated-cone-type structure, the small end of the circular-truncated-cone-type structure is close to the hardness air cylinder, a blade opening-and-closing mechanism is arranged on the hardness air cylinder, and a turning adjusting rod is fixed to the bottom of the hardness air cylinder. The manual coal-mine-tunneling ventilation-air-cylinder air outlet control device is convenient to install and use and high in safe reliability, the problems that as the local ventilator power is continuously improved, and the diameter of the air cylinder is increased, circulation air is caused, the local air speed of a working area is super high, and the working condition is poor are solved, and an air-flowing field in a roadway can be reasonably controlled.

Description

technical field [0001] The invention relates to an air outlet control device, in particular to a manual coal mine tunneling ventilation air duct air outlet control device. Background technique [0002] In the 21st century, the demand for energy consumption is increasing rapidly, and the energy issue has already become an issue that countries all over the world attach great importance to. my country is a large coal-consuming country, and coal accounts for more than 70% of my country's primary energy consumption; at the same time, my country is also a large coal-producing country, and coal production accounts for about 78.6% of the total primary energy consumption. In recent years, the safety situation of my country's coal mines has generally improved, but the safety level of coal mines is far behind that of developed countries such as Europe and the United States. Coal mine production safety accidents still occur frequently, causing heavy casualties, property losses, and envi...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a manual control device for the air outlet of a ventilation duct in coal mine tunneling, which has a simple structure, is convenient to install and use, and has high safety and reliability. The power of the machine and the increase of the diameter of the air duct are likely to cause problems such as circulating air, excessive local wind speed in the working area, and deterioration of working conditions. The air flow field in the roadway can be reasonably controlled

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