Bionic non-smooth surface wind guiding cylinder suitable for ventilation of underground mine single-headed roadway

Abstract

The invention discloses a bionic non-smooth surface wind guiding cylinder suitable for ventilation of an underground mine single-headed roadway. The bionic non-smooth surface wind guiding cylinder suitable for the ventilation of the underground mine single-headed roadway comprises a wind guiding cylinder (1). A plurality of concave pits (3) are formed in the inner wall of a section or a whole bodyof the wind guiding cylinder (1) in a distributed mode. A plurality of convex hulls (2) are distributed on the outer surface of the wind guiding cylinder (1). The concave pits (3) correspond to the convex hulls (2). The concave pits (3) are separately distributed with equal arc length and equal distance in the circumferential and axial directions of the inner wall of the wind guiding cylinder (1). According to the bionic non-smooth surface wind guiding cylinder suitable for the ventilation of the underground mine single-headed roadway, a circular convex hull structure composed of the concavepits (3) and the convex hulls (2) is adopted, the functions of reducing the friction resistance coefficient of the inner surface of the wind guiding cylinder and adjusting the wind current state are achieved, the inner surface of the wind guiding cylinder (1) has small friction resistance, the wind current speed is high, and the wind current at different speeds distribute more uniformly. The bionic non-smooth surface wind guiding cylinder suitable for the ventilation of the underground mine single-headed roadway has strong adaptability to all kinds of underground mines, and has the advantagesof simple machining and low cost.

Description

technical field [0001] The invention belongs to the technical field of ventilation, and in particular relates to an air guide tube for tunneling engineering ventilation, which is especially suitable for press-in ventilation of tunneling working faces in various projects, and can be flexibly applied in mine and tunnel construction. Background technique [0002] Surface friction accounts for a large proportion of the total resistance of transportation vehicles. For conventional transport aircraft and water vessels, surface friction resistance accounts for about 50% of the total resistance; for objects moving underwater, this proportion can reach 70%; in long-distance pipeline transportation, The power of the pumping station is almost entirely used to overcome surface frictional resistance. The study found that the surface of organisms is non-smooth, but it has good viscosity-reducing, anti-sticking and self-cleaning functions. This provides a new idea and basis for the study ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bionic non-smooth surface suitable for the ventilation of single-headed tunnels in underground mines for the defects of large ventilation resistance, high power consumption, low wind speed at the outlet of the blower, and small range of the existing tunneling tunnel. Air guide tube, the designed air guide tube can significantly improve the ventilation status of the excavation working face, and has the characteristics of convenient processing and low cost

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