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Man Takraf Fodertechnik Gmbh

Takraf Gmbh

Thomas Stenzel

Dieter Hoffmann

Burkhard Petack

Volkmar Schrader

Hans-Joachim Schombel

Klaus Potenberg

Bernd Gl&ouml;ckner

Matthias Gnilke

Manfred John

Gerhard Nies

Marko Schmidt

A continuously operating surface miner designed basically with a milling roller for the accurate, selective mining of sedimentary beds. The parameters cutting height, cutting width and feed speed are decisive for the performance capacity of surface miners. How the miner begins a block to be mined, how it finishes it and changes over to a new block to be mined is significant as well. The particular technology that can be used depends essentially on the mobility of the miner and the possibility of the engagement of the milling roller with the material to be mined. A three-caterpillar chassis for the miner and for arranging the milling roller (,) in front of the said chassis in the direction of mining is provided. The milling roller (,) is mounted on a transverse frame (,) and is fastened by same to the superstructure (,) of the miner. High mobility of the miner is achieved due to this arrangement of the milling roller and the use of the chassis. The miner always travels on a clean, freshly cut level, so that natural unevennesses or ditches dug to drain surface water do not interfere with the travel. Another advantage of this design is that the miner can move backward without problems, can strip corners with ease and can also open basin-shaped deposits with a circular feed movement.

Surface miner with tilting superstructure for depth control

A milling roller module for a surface miner, includes a milling roller operating with undershot for loosening the material from the block being mined, a support frame for fastening the milling roller to the surface miner, and a takeup chute for supporting the intermediate conveying of the loosened material in the area of the milling roller and for transferring the material to the downstream discharge belt in a specific manner. The drives are placed into the milling roller and the feed lines are led into the milling roller together with the support frame for fastening the milling roller from the side in the upper third of the milling roller diameter. As a result, it is possible to perform mining operations up to a cutting depth that is equal to half the roller diameter. A takeup chute is provided to transfer the material from the milling roller onto the downstream discharge belt in a specific manner. This takeup chute is also used to limit the conveying space in the area of the milling roller together with ring segments arranged on it and on the milling roller and thus to reduce losses of material.

Milling roller module for a surface miner

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Munich, Georgia

Thomas Stenzel