Dust suppression device for slag-tapping or ash-discharge process of power plant

Abstract

The invention discloses a dust suppression device for a slag-tapping or ash-discharge process of a power plant. The dust suppression device comprises a dust suppression soft screen, a dust suppression outer screen and a dust-suppression jetting device, wherein the dust suppression soft screen is arranged below a slag tapping hole in a peripheral mode, and is concentric with the center of the slag tapping hole; the dust suppression outer screen can be arranged at the outer side of the dust suppression soft screen in a sliding mode, and is connected with the outer side of a slag receiving vehicle; and the dust-suppression jetting device is arranged between the dust suppression soft screen and the dust suppression outer screen, and can spray fog drops for settling dust. According to the dust suppression device for the slag-tapping or ash-discharge process of the power plant disclosed by the invention, double layers of dust suppression screens are matched with the dust-suppression jetting device, so that water consumption is reduced, and cleaning is easy; ad moreover, a calculating formula for a mist spraying angle of an atomizing spray nozzle is further given, so that better dust suppression effect and water-saving effect can be obtained.

Description

technical field [0001] The invention relates to the technical field of dust removal, in particular to a dust suppression device in the slag or ash discharge process of a power plant. Background technique [0002] Some power plants design the slag discharge process of the slag bin to be discharged after adding water and stirring, the dust suppression effect is poor, and a large amount of dust overflows during the ash process, causing the surrounding environment and equipment to be dirty. Existing dust suppression methods include dust suction fan dust removal and water mist dust suppression. The suction fan dust suppression method consumes a lot of power, costs high, and causes large air disturbances, and the effect is poor; the traditional water mist dust suppression method consumes a lot of water , and the water mist is scattered on the ground to form plaster, which is not easy to clean. In addition, this type of system is easy to freeze in winter, resulting in poor operatio...

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Problems solved by technology

[0002] Some power plants design the slag discharge process of the slag bin to be discharged after adding water and stirring, the dust suppression effect is poor, and a large amount of dust overflows during the ash process, causing the surrounding environment and equipment to be dirty

Existing dust suppression methods include dust suction fan dust removal and water mist dust suppression. The suction fan dust suppression method consumes a lot of power, costs high, and causes large air disturbances, and the effect is poor; the traditional water mist dust suppression method consumes a lot of water , and the water mist is scattered on the ground to form plaster, which is not easy to clean. In addition, this type of system is easy to freeze in winter, resulting in poor operation

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