Device and method for preventing gravel from falling into blast hole

The invention discloses a device and a method for preventing gravel from falling into a blast hole, and belongs to the field of blasting. The blast hole gravel cleaning device comprises a suction cup, a controller, a vacuum generator and a grab bucket; the suction cup and the grab bucket are both ar...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YUAN WENHUA, YIN TAO, FU JUGEN, GUO ZIRU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMUNITION BLASTING HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
Online-Zugang:	Volltext bestellen
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