Top cover for extraction equipment

The utility model discloses a top cover for extraction equipment. The top cover comprises a cover plate, wherein the cover plate comprises a first-stage cover plate, a plurality of second-stage coverplates and a third-stage cover plate, the plurality of second-stage cover plates are arranged between...

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Bibliographische Detailangaben
Hauptverfasser:	TIAN JIAOFENG, BAI YAN, CHEN DALIN, JI CHUNSHAN, YANG LINHONG, ZHANG JINYONG, SU WANYIN, LI WENGANG, LU ZHENG, WANG YAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model discloses a top cover for extraction equipment. The top cover comprises a cover plate, wherein the cover plate comprises a first-stage cover plate, a plurality of second-stage coverplates and a third-stage cover plate, the plurality of second-stage cover plates are arranged between the first-stage cover plate and the third-stage cover plate, and a water inlet main pipe and an overflow main pipe are arranged at the bottom of the cover plate; manholes and exhaust pipe connectors are formed in the plate faces of the first-stage cover plate, the second-stage cover plate and thethird-stage cover plate. A first observation hole is formed in the portion, above a manhole of the first-level cover plate, of the plate face of the first-level cover plate, a second observation holeand a third observation hole are formed in the portion, above a manhole of the second-level cover plate, of the plate face of the second-level cover plate, and a fourth observation hole is formed in the portion, above a manhole