DUST SUPPRESSION DEVICE FOR HEAVY EXCAVATING EQUIPMENT Russian patent published in 2014 - IPC E02F3/76 E21F5/20 

FIELD: transport.

SUBSTANCE: invention relates to device for dust suppression during earth excavation. The device includes chassis, jib pivotally connected to chassis rear end, cutting component fixed on the jib, casing at least partially covering the cutting component, vacuum source having fluid connection with casing inside and serving for suction of dusty air from this space, air cleaner for removing dust from air sucked by vacuum source from casing inside, dust barrier which protrudes down from the casing. In this system, the said dust barrier goes along at least portion of casing perimeter and has structure being permeable for chips created by cutting component. This structure provides gradual limiting of air flow entering inside through dust barrier as the dust barrier goes down from the casing.

EFFECT: device provides maintaining constant air flow through gap between casing and ground, and lets chips to pass through dust suppressing device without damaging it.

21 cl, 10 dwg