Drilling orifice dust falling device

The utility model relates to a dust falling device for a drilling hole opening, which belongs to the technical field of dust prevention and comprises a dust collecting barrel (1), a dust collecting pipe (2) and a drilling rod (3). The drill rod (3) is inserted into the dust collecting cylinder (1);...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LI SIBIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!