Dbt Gmbh

Bucyrus Dbt Europe Gmbh

Corporacion Nacional Del Cobre De Chile (codelco)

Codelco

Harry Martin

Detlef Hahn

Frank Herrmann

Ulrich Paschedag

Pablo Antonio Letelier Parga

Fernando Arturo Geister Bühlmann

Hans Tümpner

Reinhold Brüggemann

Juan Delgado

Frank Fischer

Jens Steinberg

Jörg Wirtz

Victor Raúl Encina Montenegro

Jaime Hernán Carreño Valdés

Hans Peter Lanz

Ulrich Pasehedus, Legal Representative

Jochen Hammel

Norbert Katthöfer

Jaime Hernan Carreno Valdés

An arrangement for extracting extraction products in caving in which the extraction product is extracted downwards through an extraction funnel into an extraction path and from this is transferred onto an extraction conveyor arranged in a conveyor path, in which arrangement the extraction path extends transversely between the conveyor path and an auxiliary path parallel to this, a loading ramp is arranged in the extraction path which forms a ramp surface orientated transversely to the conveying direction of the extraction conveyor and inclined towards it. The extraction path is provided with a rail guidance attached to the bottom and extending in the area between the auxiliary path and the conveying path, on which the loading ramp is guided and along which it can be moved by a displacement drive () in the direction of the conveyor path and in the opposite direction.

Arrangement for extracting extraction products in underground extraction operations in caving

In the method according to the invention and the arrangement or according to the invention for extracting extraction products in underground mining operations using the caving method, the extraction products () collapsing in an upper gate area () are extracted via at least one extraction funnel () or the like into an extraction path () driven below the gate and are transported away therein by means of an extraction conveyor (). According to the invention the extraction funnels () are arranged laterally beside the extraction conveyor () and lead at their lower end into a ramp surface () inclined towards the extraction conveyor, the extraction products extracted from the gate through the extraction funnels being transported slidingly over the inclined ramp surface to the extraction conveyor. The inclined ramp surface is preferably formed by a loading ramp () which is so arranged in an extraction chamber () branching off laterally from the extraction path that its one end (), disposed higher, is located below the extraction funnel and its other end (), disposed lower, forms an outlet () towards the extraction conveyor.

Method and device for extracting extraction products in underground mining

The extraction machine for underground ore extraction operations, with extraction of the extraction product by blasting has an advancing support equipment () and a face conveyor () coupled to it as well as at least one boring device () for the production of shot holes () and a loading device () to supply the face conveyor () with the blast rock loosened by blasting, whereby the boring device () and the loading device () are assigned to a common boring and loading machine (), which can be driven along the face conveyor () at right angles to the direction of mining in the direction towards the rock face () running parallel to the direction of mining, or away from this.

Mining system with drilling, loading, conveyor, and support

The extraction machine for underground ore extraction operations, with extraction of the extraction product by blasting has an advancing support equipment ( ) and a face conveyor ( ) coupled to it as well as at least one boring device ( ) for the production of shot holes ( ) and a loading device ( ) to supply the face conveyor ( ) with the blast rock loosened by blasting, whereby the boring device ( ) and the loading device ( ) are assigned to a common boring and loading machine ( ), which can be driven along the face conveyor ( ) at right angles to the direction of mining in the direction towards the rock face ( ) running parallel to the direction of mining, or away from this.

Longwall mining with blasting

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Cranberry Township, PA, United States of America

Harry Martin