Dust suppressing and dropping device and method for dumping plough

Abstract

The invention discloses a dust suppressing and dropping device for a dumping plough. The dust suppressing and dropping device comprises a spraying device and a dust suppressing cover, wherein the spraying device is a single fluid spraying device and / or a dual-fluid spraying device; the single fluid spraying device comprises a water pump, a water tube and a single fluid spray nozzle which are sequentially connected; the dual-fluid spraying device comprises a water pump, a water tube, an air compressor, a gas tube and a dual-fluid spray nozzle, the water pump is connected to the water tube, theair compressor is connected to the gas tube, and the water tube and the gas tube are separately connected to the dual-fluid spray nozzle; and the dual-fluid spray nozzle and / or the single fluid spraynozzle is arranged on the dust suppressing cover. The invention also discloses the dumping plough comprising the dust suppressing and dropping device of the dumping plough and the dust suppressing anddropping device for the dumping plough. The dust suppressing and dropping device can effectively reduce dissipated raising dust.

Description

technical field [0001] The invention relates to the technical field of dust suppression, in particular to a dust suppression and dust suppression device for a soil dumper and a dust suppression and dust suppression method thereof. Background technique [0002] At present, more than 90% of the existing large-scale production mines in China are open-pit mining. During the production of open-pit mining, a large amount of rocks will be stripped. When the soil machine discharges materials to the dump site, a large amount of dust is raised at the material transfer port and the discharge port, causing serious pollution to the surrounding environment. Therefore, it is necessary to adopt dust suppression measures during the operation of the dumper. [0003] The dust suppression technology adopted during the operation of the existing soil dumper mainly includes the method of air-driven spray dust removal, spray dust removal or the combination of the two. Dust-removing air-supply spr...

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Problems solved by technology

[0003] The dust suppression technology adopted during the operation of the existing soil dumper mainly includes the method of air-driven spray dust removal, spray dust removal or the combination of the two. Dust-removing air-supply sprayer, the dust-removing air-supply sprayer is installed at the lower part of the discharge arm at a distance of 20 meters from the blanking point; the spray dust removal method is to install a nozzle on the head of the discharge arm, and the nozzle is connected to the water pipe; soil dumper Generally, spraying at the discharge port and spraying at the transfer port are used to remove dust, but there are the following problems: First, because the height of the discharge port from the ground is high, the falling potential energy of the discarded material is high, and the dust generated by the discharge is under the action of the wind. , the fugitive dust has an uncertain direction, fast speed, and irregular escape, while the water mist of the sprayer is basically in the state of rays, and its directional dust removal is difficult to deal with this kind of fugitive dust; The sprayed water mist is blown away and cannot reach the discharge port, and the expected dust suppression effect cannot be achieved; the third is that the sprayer needs to be fixed under the discharge arm, and the heavy weight of the sprayer itself increases the stress on the discharge arm Bending moment, in order to cope with this additional bending moment, the design and selection of the discharge arm, pull rope, hydraulic cylinder, fixed frame, etc. of the earthmover need to be increased, which increases the manufacturing cost and operating energy consumption ; Fourth, in the spraying and dust removal measures at the transfer port, because the spraying water flow is much larger than the dust particles, it is difficult for the water flow and dust to condense, and the dust reduction effect is poor; A lot of water will cause problems such as conveyor belt deviation

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