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Oberharzer Erzbergbau um 1920 - 2. Die Aufbereitung


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Formal Metadata

Title Oberharzer Erzbergbau um 1920 - 2. Die Aufbereitung
Alternative Title Ore Mining in the Upper Harz Mountains about 1920 - 2. Dressing
Author Herwig, Friedrich
License No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
DOI 10.3203/IWF/G-91
IWF Signature G 91
Publisher IWF (Göttingen)
Release Date 1963
Language Silent film
Production Year 1923

Technical Metadata

IWF Technical Data Film, 16 mm, 123 m ; SW, 15 min

Content Metadata

Subject Area Earth Sciences
Abstract Edition: In der Zentralaufbereitung am Ottiliae-Schacht Bleiglanz- und Zinkblende-Konzentratgewinnung aus Roherzen durch Erz- und Schlammaufbereitung: Zerkleinerung durch Backenbrecher, Walzenmühlen, Pendelmühlen. Klassierung durch Trommelsiebe und Stromklassierung. Sortierung durch Klaubarbeit, in Setzmaschinen und auf Herden. Erzanalyse. Aufgenommen mit 16 B/s; Vorführgeschw. 18 B/s.
The film covers the second part of an, originally, three-part film on the Upper Harz ore mining industry, shot in 1923. This is a general survey of work in the central preparation plant at the Ottiliae shaft in Clausthal, where lead sulphide concentrates (PbS) and sulphide of zinc concentrates (ZnS) were won from the crude ores. Individual stages of the preparation of coarse, medium, and fine ores, and sediment, are shown in detail one after another. Size reduction machines used include coarse and fine jaw crushers, then coarse, medium, and fine roll crushers, and, finally, centrifugal grinders. Grading is done in revolving trommel screens and subsequent belt grading. Sorting is first done by hand selection (women and children), then in jiggers, on ascillating and percussion tables, and round buddles. The film closes with general shots of mining activity and ore analysis.
Keywords Untertagebau
Erzbergbau / historisch
Mühle / Walzenmühle
Mühle / Pendelmühle
Brecher / Backenbrecher
roll crushing mill
mill / roll crushing mill
jaw crusher
crusher / jaw crusher
ore mining / historical
underground mining
centrifugal grinder


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