Method and device for extracting extraction products in underground mining

An arrangement for extracting extraction products in underground mining operations using the caving method, the extraction product being extractable after collapsing in a working gate area, the arrangement comprising:

• at least one extraction funnel arranged in the bottom rock of the working gate to receive the collapsed extraction product and directing the extraction product to an extraction path driven below the gate;
• an extraction conveyor arranged in the extraction path to transport the extraction product away;
• and
• a loading ramp having a ramp surface aligned substantially transversely to a conveying direction of the extraction conveyor and inclined towards the extraction conveyor, a first end of the ramp surface being located below the extraction funnel and second lower end of the ramp surface forming an outlet towards the extraction conveyor;
• wherein the loading ramp is provided with a blocking device arranged in the outlet region of the loading ramp, wherein the blocking device consists substantially of at least one swivellable blocking flap, and wherein the blocking flap is swivellable about a substantially vertical axis and is formed by at least one gate flap swivellable in the manner of a gate above the outlet region of the ramp surface.

An arrangement for extracting extraction products in underground mining operations using the caving method, the extraction product being extractable after collapsing in a working gate area, the arrangement comprising:

• at least one extraction funnel arranged in the bottom rock of the working gate to receive the collapsed extraction product and directing the extraction product to an extraction path driven below the gate;
• an extraction conveyor arranged in the extraction path to transport the extraction product away;
• and
• a loading ramp having a ramp surface aligned substantially transversely to a conveying direction of the extraction conveyor and inclined towards the extraction conveyor, a first end of the ramp surface being located below the extraction funnel and second lower end of the ramp surface forming an outlet towards the extraction conveyor;
• wherein the loading ramp is provided with a blocking device, and wherein the blocking device comprises a sectional gate running in lateral guide rails and comprising a plurality of blocking segments articulated to one another.

An arrangement for extracting extraction products in underground mining operations using the caving method, the extraction product being extractable after collapsing in a working gate area, the arrangement comprising:

• at least one extraction funnel arranged in the bottom rock of the working gate to receive the collapsed extraction product and directing the extraction product to an extraction path driven below the gate;
• an extraction conveyor arranged in the extraction path to transport the extraction product away;
• a loading ramp having a ramp surface aligned substantially transversely to a conveying direction of the extraction conveyor and inclined towards the extraction conveyor, a first end of the ramp surface being located below the extraction funnel and second lower end of the ramp surface forming an outlet towards the extraction conveyor;
• wherein the loading ramp is provided with a blocking device, and wherein the blocking device comprises a roll-up gate that can be rolled on to a horizontal shaft arranged above the ramp surface and comprises a plurality of blocking segments articulated to one another.

An arrangement for extracting extraction products in underground mining operations using the caving method, the extraction product being extractable after collapsing in a working gate area, the arrangement comprising:

• at least one extraction funnel arranged in the bottom rock of the working gate to receive the collapsed extraction product and directing the extraction product to an extraction path driven below the gate;
• an extraction conveyor arranged in the extraction path to transport the extraction product away;
• a loading ramp having a ramp surface aligned substantially transversely to a conveying direction of the extraction conveyor and inclined towards the extraction conveyor, a first end of the ramp surface being located below the extraction funnel and second lower end of the ramp surface forming an outlet towards the extraction conveyor;
• and
• an auxiliary path arranged behind the loading ramp substantially parallel to the extraction path, through which auxiliary path the loading ramp is accessible from the rear.