A "ring" double wall dust control air curtain

Abstract

The invention provides an "annular" double wall-attached dust control air curtain machine, which is mainly composed of an annular air curtain machine, a compressor fan, an exhaust fan, a pressure fan cylinder, an exhaust fan cylinder, a compressor fan motor and an exhaust fan motor. The attached wall blades set by the equipment can effectively change the air flow trajectory, expand the dust control area of ​​the air curtain, and effectively reduce the dust control air curtain of high concentration dust generated in the fully mechanized excavation face. This equipment is used in confined spaces, and has the characteristics of stable dust control and obvious dust suppression effect. It provides a good dust control equipment for laboratory research on dust migration, dispersion law and dust control equipment test research and underground operations.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an "annular" double wall-attached dust control air curtain. Background technique [0002] With the increasing technical level of industrial production mechanization, the demand for coal mining operations has greatly increased, and the dust content of the fully mechanized excavation face has also increased. [0003] The coal mining operation is in a limited space, and a normal ventilation system cannot be formed, causing the dust to return to the operating environment with the wind flow, resulting in excessive dust content in the fully mechanized excavation face, and reduced underground visibility, which will affect the construction efficiency of the workers. The physical and chemical properties of coal dust not only affect the health of underground operators, but also cause explosion accidents when the concentration in the air reaches a certain level, resulting in loss of ...

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Problems solved by technology

[0003] The coal mining operation is in a limited space, and a normal ventilation system has not been formed, causing the dust to return to the working environment with the wind, resulting in excessive dust content in the fully mechanized excavation work, and reduced underground visibility, which affects the construction efficiency of the staff. The physical and chemical properties of coal dust not only affect the health of underground workers, but also cause explosion accidents and cause loss of life and property when the concentration reaches a certain level in the air.

[0004] Air curtain dust control technology has been widely studied in recent years, and the dust control effect is ideal. However, there are still some defects in the research on air curtain dust control technology at home and abroad. It is not allowed to add any power facilities for the air supply in the air duct, so that the air volume entering the air curtain device cannot form an effective air curtain; the parallel flow air curtain machine has the problem of uneven distribution of the air curtain, and the dust cannot be efficiently controlled

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