Dust abatement device and method of dust abatement

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means

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55 22, 55 91, 55230, 55385D, 98 50, 261 89, 299 12, E21C 3502

Patent

active

040763153

ABSTRACT:
A dust abatement device including an intake or collecting means for delivering air to a rotating fan constituting a propulsion means, and outlet means directing air from the fan in a curtain at an area of dust concentration to inhibit dust movement out of the area. The intake means includes a duct extending from the fan to the area of dust concentration to pick up and deliver air-borne dry dust particulate from such area to the fan, the fan mixing the dry dust particulate with liquid sprayed on the fan to provide a slurry, and the outlet means directing the air and slurry from the fan to the area of dust concentration so that the slurry further wets the dust particulate at such area. The dust abatement device can be mounted on a machine that includes a mechanism for acting on material in a manner so as to create the area of dust concentration. More particularly, the dust-forming mechanism can be the cutter head of a continuous mining machine that rotates in a direction to cause an air flow rearwardly and upwardly from the area of dust concentration. In this event, the fan delivers the air and slurry in a spray to the cutter head and substantially in a direction counter to the air flow created by the cutter head to retard such flow and movement of the dry dust particulate away from the area of dust concentration.

REFERENCES:
patent: 831275 (1906-09-01), Fries
patent: 939481 (1909-11-01), Dickson
patent: 1982470 (1934-11-01), Franks
patent: 2059639 (1936-11-01), Hixon, Sr.
patent: 2070920 (1937-02-01), Pray
patent: 2100178 (1937-11-01), White
patent: 3387889 (1968-06-01), Ziemba et al.
patent: 3474597 (1969-10-01), Eckert
patent: 3603644 (1971-09-01), McCleery

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