Grouting device for filling primary gangue in coal mine

The grouting device comprises a grouting pump main body, the front portion and the rear portion of the lower end of the grouting pump main body are fixedly connected with bottom frames, sliding grooves are formed in the inner walls of the two sides of the front portion and the rear portion of each b...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG XUDONG, JIA LEI, SI DAOQIANG, ZHANG YINLI, FENG JUNLONG, SI SHANGJIN, YUAN SONG, BAI WENTING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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