Device for removing sea bed

Abstract

A device for removing sea bed includes a conveying line at least partially surrounded by sea water and an emergency emptying device arranged in the conveying line. The conveying line is configured to have a sea bed be removed therethrough so that a removed sea bed is transportable to a surface in a conveying direction. The emergency emptying device is configured so that the removed sea bed moving in a direction counter to the conveying direction in the conveying line is dischargeable from the conveying line into the sea water.

What is claimed is: 
     
         1 . A device for removing sea bed, the device comprising:
 a conveying line at least partially surrounded by sea water, the conveying line being configured to have a sea bed be removed therethrough so that a removed sea bed is transportable to a surface in a conveying direction; and   an emergency emptying device arranged in the conveying line, the emergency emptying device being configured so that the removed sea bed moving in a direction counter to the conveying direction in the conveying line is dischargeable from the conveying line into the sea water.   
     
     
         2 . The device as recited in  claim 1 , wherein the emergency emptying device comprises at least one emergency emptying opening configured to be opened or closed and to laterally discharge the removed sea bed moving in the direction counter to the conveying direction from the conveying line into the sea water. 
     
     
         3 . The device as recited in  claim 2 , wherein the emergency emptying device comprises at least two emergency emptying openings. 
     
     
         4 . The device as recited in  claim 3 , wherein the at least two emergency emptying openings are arranged at regular intervals over a length of the conveying line. 
     
     
         5 . The device as recited in  claim 3 , wherein the at least two emergency emptying openings are arranged so as to be spaced every 200 m to 700 m. 
     
     
         6 . The device as recited in  claim 3 , wherein the at least two emergency emptying openings are arranged so as to be spaced every 400 m to 500 m. 
     
     
         7 . The device as recited in  claim 2 , further comprising an emergency emptying door arranged at each emergency emptying opening, the emergency emptying door being configured to move so as to open the emergency emptying opening towards an interior of the conveying line so that the removed sea bed moving in the direction counter to the conveying direction is dischargeable via the emergency emptying door though the emergency emptying opening into the sea water. 
     
     
         8 . The device as recited in  claim 2 , further comprising a piston/cylinder apparatus configured to be actuated by a water-hydraulic pressure and to move the emergency emptying door. 
     
     
         9 . The device as recited in  claim 8 , wherein the piston/cylinder apparatus comprises a compression spring configured to move the emergency emptying door into a closed position when no water-hydraulic pressure is applied. 
     
     
         10 . The device as recited in  claim 8 , further comprising a water reservoir configured to provide the water-hydraulic pressure. 
     
     
         11 . The device as recited in  claim 10 , wherein the water reservoir comprises a hydraulic line configured to connect the piston/cylinder apparatus so as to actuate the piston/cylinder apparatus against a force of the compression spring. 
     
     
         12 . The device as recited in  claim 11 , wherein the hydraulic line comprises a free end and a check valve, the check valve being configured to seal the free end. 
     
     
         13 . The device as recited in  claim 10 , further comprising:
 a switching valve arranged between the water reservoir and the hydraulic line, the switching valve being configured to activate a switching state selected from:   a separation of the water reservoir from the hydraulic line via a check valve configured to open against the water-hydraulic pressure provided by the water reservoir;   a connection of the water reservoir with the hydraulic line; and   a separation of the water reservoir from the hydraulic line, a closing of the water reservoir, and an opening of the hydraulic line to a surrounding environment.